springboot整合es客户端操作elasticsearch（四）

对文档查询，在实际开发中，对文档的查询也是偏多的，记得之前在mou快递公司，做了一套事实的揽件数据操作，就是通过这个来存储数据的，由于一天的数据最少拥有3500万数据

所以是比较多的，而且还要求查询速度特别快，所以就选择了这个作为数据库

首先向es库中插入数据

首先新建索引：

当然也可以使用api一次操作：

向es中创建映射：

我采用的postman进行的，所以

json：

{
    "properties": {
        "description": {
            "type": "text",
            "analyzer": "ik_max_word",
            "search_analyzer": "ik_smart"
        },
        "name": {
            "type": "text",
            "analyzer": "ik_max_word",
            "search_analyzer": "ik_smart"
        },
        "pic": {
            "type": "text",
            "index": false
        },
        "price": {
            "type": "float"
        },
        "studymodel": {
            "type": "keyword"
        },
        "timestamp": {
            "type": "date",
            "format": "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"
        }
    }
}

这个json数据我是从网上找的一个课程相关的内容。

插入数据：

使用postman

http://localhost:9200/chenxuyou/doc/9

{
"name": "es开发基础",
"description": "在es领域非常流行，es程序员都在用。",
"studymodel": "",
"price":813.6,
"timestamp":"2019-11-14 19:11:35",
"pic":"group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
}

参数后面的那个9，这个是id的意思，如果哦我们不传输，那么es会自动给我生成这个，

使用postman

http://localhost:9200/_search

结果： 返回所有的数据，所有的索引下面的数据：

{
    "took": ,
    "timed_out": false,
    "_shards": {
        "total": ,
        "successful": ,
        "skipped": ,
        "failed":
    },
    "hits": {
        "total": ,
        "max_score": ,
        "hits": [
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "Bootstrap开发",
                    "description": "Bootstrap是由Twitter推出的一个前台页面开发框架，是一个非常流行的开发框架，此框架集成了多种页面效果。此开发框架包含了大量的CSS、JS程序代码，可以帮助开发者（尤其是不擅长页面开发的程序人员）轻松的实现一个不受浏览器限制的精美界面效果。",
                    "studymodel": "",
                    "price": 38.6,
                    "timestamp": "2018-04-25 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "java编程基础",
                    "description": "java语言是世界第一编程语言，在软件开发领域使用人数最多。",
                    "studymodel": "",
                    "price": 68.6,
                    "timestamp": "2018-03-25 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "spring开发基础",
                    "description": "spring 在java领域非常流行，java程序员都在用。",
                    "studymodel": "",
                    "price": 88.6,
                    "timestamp": "2018-02-24 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "开发基础",
                    "description": "在java领域非常流行，java程序员都在用。",
                    "studymodel": "",
                    "price": 8.6,
                    "timestamp": "2019-02-24 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "js开发基础",
                    "description": "在js领域非常流行，js程序员都在用。",
                    "studymodel": "",
                    "price": 83.6,
                    "timestamp": "2019-12-24 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "go开发基础",
                    "description": "在go领域非常流行，go程序员都在用。",
                    "studymodel": "",
                    "price": 813.6,
                    "timestamp": "2019-12-14 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "python开发基础",
                    "description": "在python领域非常流行，python程序员都在用。",
                    "studymodel": "",
                    "price": 8134.6,
                    "timestamp": "2019-12-14 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "php开发基础",
                    "description": "在php领域非常流行，php程序员都在用。",
                    "studymodel": "",
                    "price": 813.6,
                    "timestamp": "2019-12-14 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou",
                "_type": "doc",
                "_id": "",
                "_score": ,
                "_source": {
                    "name": "es开发基础",
                    "description": "在es领域非常流行，es程序员都在用。",
                    "studymodel": "",
                    "price": 813.6,
                    "timestamp": "2019-11-14 19:11:35",
                    "pic": "group1/M00/00/00/wKhlQFs6RCeAY0pHAAJx5ZjNDEM428.jpg"
                }
            },
            {
                "_index": "chenxuyou3",
                "_type": "doc",
                "_id": "fECECG8BAmmLmqjt7xyH",
                "_score": ,
                "_source": {
                    "price": 5.6,
                    "studymodel": "",
                    "name": "spring cloud实战",
                    "description": "本课程主要从四个章节进行讲解： 1.微服务架构入门 2.spring cloud 基础入门 3.实战Spring Boot 4.注册中心eureka。",
                    "timestamp": "2019-12-15 15:45:27"
                }
            }
        ]
    }
}

结果说明：
took：本次操作花费的时间，单位为毫秒。
timed_out：请求是否超时
_shards：说明本次操作共搜索了哪些分片
hits：搜索命中的记录
hits.total ： 符合条件的文档总数 hits.hits ：匹配度较高的前N个文档
hits.max_score：文档匹配得分，这里为最高分
_score：每个文档都有一个匹配度得分，按照降序排列。
_source：显示了文档的原始内容。

当然也可以对指定索引库进行查询

http://localhost:9200/chenxuyou3/doc/_search

post

{
    "took": ,
    "timed_out": false,
    "_shards": {
        "total": ,
        "successful": ,
        "skipped": ,
        "failed":
    },
    "hits": {
        "total": ,
        "max_score": ,
        "hits": [
            {
                "_index": "chenxuyou3",
                "_type": "doc",
                "_id": "fECECG8BAmmLmqjt7xyH",
                "_score": ,
                "_source": {
                    "price": 5.6,
                    "studymodel": "",
                    "name": "spring cloud实战",
                    "description": "本课程主要从四个章节进行讲解： 1.微服务架构入门 2.spring cloud 基础入门 3.实战Spring Boot 4.注册中心eureka。",
                    "timestamp": "2019-12-15 15:45:27"
                }
            },
            {
                "_index": "chenxuyou3",
                "_type": "doc",
                "_id": "fUCECG8BAmmLmqjt8xw3",
                "_score": ,
                "_source": {
                    "price": 5.6,
                    "studymodel": "",
                    "name": "spring cloud实战",
                    "description": "本课程主要从四个章节进行讲解： 1.微服务架构入门 2.spring cloud 基础入门 3.实战Spring Boot 4.注册中心eureka。",
                    "timestamp": "2019-12-15 15:45:28"
                }
            },
            {
                "_index": "chenxuyou3",
                "_type": "doc",
                "_id": "fkCECG8BAmmLmqjt-Bwr",
                "_score": ,
                "_source": {
                    "price": 5.6,
                    "studymodel": "",
                    "name": "spring cloud实战",
                    "description": "本课程主要从四个章节进行讲解： 1.微服务架构入门 2.spring cloud 基础入门 3.实战Spring Boot 4.注册中心eureka。",
                    "timestamp": "2019-12-15 15:45:29"
                }
            },
            {
                "_index": "chenxuyou3",
                "_type": "doc",
                "_id": "f0CECG8BAmmLmqjt-xxw",
                "_score": ,
                "_source": {
                    "price": 5.6,
                    "studymodel": "",
                    "name": "spring cloud实战",
                    "description": "本课程主要从四个章节进行讲解： 1.微服务架构入门 2.spring cloud 基础入门 3.实战Spring Boot 4.注册中心eureka。",
                    "timestamp": "2019-12-15 15:45:30"
                }
            },
            {
                "_index": "chenxuyou3",
                "_type": "doc",
                "_id": "ekBpCG8BAmmLmqjtgRwU",
                "_score": ,
                "_source": {
                    "price": 5.6,
                    "studymodel": "",
                    "name": "Ealsticseach学习实战",
                    "description": "本课程主要从四个章节进行讲解： 1.微服务架构入门 2.spring cloud 基础入门 3.实战Spring Boot 4.注册中心eureka。",
                    "timestamp": "2019-12-15 15:15:29"
                }
            }
        ]
    }
}

现在采用客户端的aip进行操作，所以只需要在原来的基础上增阿加一个controller就好

查询全部和分页查询：

 @RequestMapping(value = "/searchAlldoc", method = RequestMethod.GET)
    public String searchAlldoc() {
        //搜索请求对象
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //设置搜索方式
        searchSourceBuilder.query(QueryBuilders.matchAllQuery());
        //设置包含哪些字段，不包括哪些字段，第一个参数，是包含的，第二个是不包含的
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"},new String[]{});

        //设置搜索源
        searchRequest.source(searchSourceBuilder);
        SearchResponse search =null;
        try {
            search = client.search(searchRequest, RequestOptions.DEFAULT);

        } catch (IOException e) {
            e.printStackTrace();
        }
        SearchHits hits = search.getHits();
        long totalHits = hits.totalHits;
        System.out.println(totalHits);
        SearchHit[] hits1 = hits.getHits();
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit searchHit:hits1){
            String id = searchHit.getId();
            Map<String, Object> sourceAsMap = searchHit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
           String s = (String) sourceAsMap.get("timestamp");
            Date timestamp =null;
            try {
                timestamp = dateFormat.parse(s);

            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(s);
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);

        }

        return "ok";
    }

    @RequestMapping(value = "/searchAlldocPage", method = RequestMethod.GET)
    public String searchAlldocPage() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //设置分页参数
        //页码
        int page = ;
        //每页记录数
        int size = ;
        //计算出记录起始下标
        int from = (page - ) * size;
        searchSourceBuilder.from(from);//起始记录下标，从0开始
        searchSourceBuilder.size(size);//每页显示的记录数
        //搜索方式
        //matchAllQuery搜索全部
        searchSourceBuilder.query(QueryBuilders.matchAllQuery());
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

精确查询

Term Query为精确查询，在搜索时会整体匹配关键字，不再将关键字分词，本来es是进行分词插叙，这个词主要用作精确的，不进行分词的，

 @RequestMapping(value = "/termquerydocPage", method = RequestMethod.GET)
    public String termquerydocPage() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //设置分页参数
        //页码
        int page = ;
        //每页记录数
        int size = ;
        //计算出记录起始下标
        int from = (page - ) * size;
        searchSourceBuilder.from(from);//起始记录下标，从0开始
        searchSourceBuilder.size(size);//每页显示的记录数
        //搜索方式

        //matchAllQuery搜索全部
        searchSourceBuilder.query(QueryBuilders.termQuery("name","spring"));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }
    @RequestMapping(value = "/termqueryId", method = RequestMethod.GET)
    public String termqueryId() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
        //定义id
        String[] ids = new String[]{"",""};
        searchSourceBuilder.query(QueryBuilders.termsQuery("_id",ids));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

控制台打印结果：

38.6
Bootstrap开发

null
Sun Mar  :: CST
68.6
java编程基础

null

matchquery

　　

match Query即全文检索，它的搜索方式是先将搜索字符串分词，再使用各各词条从索引中搜索。

match query与Term query区别是match query在搜索前先将搜索关键字分词，再拿各各词语去索引中搜索。

postman 测试：

http://localhost:9200/chenxuyou/doc/_search

post
第一种
{
"query": {    
    "match" : {
        "description" : {
            "query" : "spring开发",
            "operator" : "or"
        }
    }
  }
}

query：搜索的关键字，对于英文关键字如果有多个单词则中间要用半角逗号分隔，而对于中文关键字中间可以用 逗号分隔也可以不用。

operator：or 表示 只要有一个词在文档中出现则就符合条件，and表示每个词都在文档中出现则才符合条件。 上边的搜索的执行过程是：

1 、将“spring开发”分词，分为spring、开发两个词
2、再使用spring和开发两个词去匹配索引中搜索。
3、由于设置了operator为or，只要有一个词匹配成功则就返回该文档。

第二中

{
"query": {    
    "match" : {
        "description" : {
            "query" : "spring开发框架",
             "minimum_should_match": "80%"
        }
    }
  }
}

上边使用的operator = or表示只要有一个词匹配上就得分，如果实现三个词至少有两个词匹配如何实现？
使用minimum_should_match可以指定文档匹配词的占比：
比如搜索语句如下：

“spring开发框架”会被分为三个词：spring、开发、框架
设置"minimum_should_match": "80%"表示，三个词在文档的匹配占比为80%，即3*0.8=2.4，向上取整得2，表
示至少有两个词在文档中要匹配成功。

 @RequestMapping(value = "/matchquery", method = RequestMethod.GET)
    public String matchquery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
        //定义id
        searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开发框架")
                .minimumShouldMatch("80%"));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

    @RequestMapping(value = "/matchqueryOr", method = RequestMethod.GET)
    public String matchqueryOr() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询

//匹配关键字
searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

multi Query

　　

　　上边的termQuery和matchQuery一次只能匹配一个Field，本节学习multiQuery，一次可以匹配多个字段。 1、基本使用 单项匹配是在一个field中去匹配，多项匹配是拿关键字去多个Field中匹配。

http://localhost:9200/chenxuyou/doc/_search

{
    "query": {
        "multi_match": {
            "query": "spring 开发框架",
            "minimum_should_match": "50%",
            "fields": [
                "name",
                "description"
            ]
        }
    }
}
结果：

提高name的权重得分
{
    "query": {
        "multi_match": {
            "query": "spring 开发框架",
            "minimum_should_match": "50%",
            "fields": [
                "name^10",
                "description"
            ]
        }
    }
}

这样会导致两次得分不一样，就会造成结果顺序不一样

@RequestMapping(value = "/multiMatchQuery", method = RequestMethod.GET)
    public String multiMatchQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询

//匹配关键字
        //搜索方式
        //MultiMatchQuery
        searchSourceBuilder.query(QueryBuilders.multiMatchQuery("spring css","name","description")
                .minimumShouldMatch("50%")
                .field("name",));
       // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

布尔查询：

　　　

　　布尔查询对应于Lucene的BooleanQuery查询，实现将多个查询组合起来。 三个参数： must：文档必须匹配must所包括的查询条件，相当于 “AND” should：文档应该匹配should所包括的查询条件其 中的一个或多个，相当于 "OR" must_not：文档不能匹配must_not所包括的该查询条件，相当于“NOT”

　　

@RequestMapping(value = "/boolQuery", method = RequestMethod.GET)
    public String boolQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询

//匹配关键字
        //搜索方式
        //MultiMatchQuery
        //boolQuery搜索方式
        //先定义一个MultiMatchQuery
        MultiMatchQueryBuilder multiMatchQueryBuilder = QueryBuilders.multiMatchQuery("spring css", "name", "description")
                .minimumShouldMatch("50%")
                .field("name", );
        //再定义一个termQuery
        TermQueryBuilder termQueryBuilder = QueryBuilders.termQuery("studymodel", "");

        //定义一个boolQuery
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        boolQueryBuilder.must(multiMatchQueryBuilder);
        boolQueryBuilder.must(termQueryBuilder);

        searchSourceBuilder.query(boolQueryBuilder);
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name","studymodel","price","timestamp"},new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

过滤器：

　　

过虑是针对搜索的结果进行过虑，过虑器主要判断的是文档是否匹配，不去计算和判断文档的匹配度得分，所以过 虑器性能比查询要高，且方便缓存，推荐尽量使用过虑器去实现查询或者过虑器和查询共同使用。

range：范围过虑，保留大于等于60 并且小于等于100的记录。　

term ：项匹配过虑，保留studymodel等于"201001"的记录。
注意：range和term一次只能对一个Field设置范围过虑。

使用：

@RequestMapping(value = "/filterQuery", method = RequestMethod.GET)
    public String filterQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
//boolQuery搜索方式
        //先定义一个MultiMatchQuery
        MultiMatchQueryBuilder multiMatchQueryBuilder = QueryBuilders.multiMatchQuery("spring css", "name", "description")
                .minimumShouldMatch("50%")
                .field("name", );

        //定义一个boolQuery
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        boolQueryBuilder.must(multiMatchQueryBuilder);
        //定义过虑器
        boolQueryBuilder.filter(QueryBuilders.termQuery("studymodel",""));
        boolQueryBuilder.filter(QueryBuilders.rangeQuery("price").gte().lte());

        searchSourceBuilder.query(boolQueryBuilder);
//匹配关键字
        //搜索方式
        //MultiMatchQuery
        //boolQuery搜索方式
        //先定义一个MultiMatchQuery
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name","studymodel","price","timestamp"},new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

排序：　

　　可以在字段上添加一个或多个排序，支持在keyword、date、float等类型上添加，text类型的字段上不允许添加排
序

@RequestMapping(value = "/sortQuery", method = RequestMethod.GET)
    public String sortQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
        //boolQuery搜索方式
        //定义一个boolQuery
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        //定义过虑器
        boolQueryBuilder.filter(QueryBuilders.rangeQuery("price").gte().lte());

        searchSourceBuilder.query(boolQueryBuilder);
        //添加排序
        searchSourceBuilder.sort("studymodel", SortOrder.DESC);
        searchSourceBuilder.sort("price", SortOrder.ASC);
//匹配关键字
        //搜索方式
        //MultiMatchQuery
        //boolQuery搜索方式
        //先定义一个MultiMatchQuery
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name","studymodel","price","timestamp"},new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

高亮：

　　高亮显示可以将搜索结果一个或多个字突出显示，以便向用户展示匹配关键字的位置

@RequestMapping(value = "/highlightQuery", method = RequestMethod.GET)
    public String highlightQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
        //boolQuery搜索方式
        //定义一个boolQuery
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        //定义过虑器
        boolQueryBuilder.filter(QueryBuilders.rangeQuery("price").gte().lte());

        searchSourceBuilder.query(boolQueryBuilder);
        //设置高亮
        HighlightBuilder highlightBuilder = new HighlightBuilder();
        highlightBuilder.preTags("<tag>");
        highlightBuilder.postTags("</tag>");
        highlightBuilder.fields().add(new HighlightBuilder.Field("name"));
//        highlightBuilder.fields().add(new HighlightBuilder.Field("description"));
        searchSourceBuilder.highlighter(highlightBuilder);
//匹配关键字
        //搜索方式
        //MultiMatchQuery
        //boolQuery搜索方式
        //先定义一个MultiMatchQuery
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name","studymodel","price","timestamp"},new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

最后讲整个controller进行拿出来：

package com.cxy.elasticsearch.controller;

import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.update.UpdateRequest;
import org.elasticsearch.action.update.UpdateResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.index.query.*;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHits;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.search.fetch.subphase.highlight.HighlightBuilder;
import org.elasticsearch.search.sort.SortOrder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@RestController
public class EsdocController {
    @Autowired
    RestHighLevelClient client;

    @Autowired
    RestClient restClient;

    @RequestMapping(value = "/searchAlldoc", method = RequestMethod.GET)
    public String searchAlldoc() {
        //搜索请求对象
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //设置搜索方式
        searchSourceBuilder.query(QueryBuilders.matchAllQuery());
        //设置包含哪些字段，不包括哪些字段，第一个参数，是包含的，第二个是不包含的
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"},new String[]{});

        //设置搜索源
        searchRequest.source(searchSourceBuilder);
        SearchResponse search =null;
        try {
            search = client.search(searchRequest, RequestOptions.DEFAULT);

        } catch (IOException e) {
            e.printStackTrace();
        }
        SearchHits hits = search.getHits();
        long totalHits = hits.totalHits;
        System.out.println(totalHits);
        SearchHit[] hits1 = hits.getHits();
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit searchHit:hits1){
            String id = searchHit.getId();
            Map<String, Object> sourceAsMap = searchHit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
           String s = (String) sourceAsMap.get("timestamp");
            Date timestamp =null;
            try {
                timestamp = dateFormat.parse(s);

            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(s);
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);

        }

        return "ok";
    }

    @RequestMapping(value = "/searchAlldocPage", method = RequestMethod.GET)
    public String searchAlldocPage() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //设置分页参数
        //页码
        int page = ;
        //每页记录数
        int size = ;
        //计算出记录起始下标
        int from = (page - ) * size;
        searchSourceBuilder.from(from);//起始记录下标，从0开始
        searchSourceBuilder.size(size);//每页显示的记录数
        //搜索方式
        //matchAllQuery搜索全部
        searchSourceBuilder.query(QueryBuilders.matchAllQuery());
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

    @RequestMapping(value = "/termquerydocPage", method = RequestMethod.GET)
    public String termquerydocPage() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //设置分页参数
        //页码
        int page = ;
        //每页记录数
        int size = ;
        //计算出记录起始下标
        int from = (page - ) * size;
        searchSourceBuilder.from(from);//起始记录下标，从0开始
        searchSourceBuilder.size(size);//每页显示的记录数
        //搜索方式

        //matchAllQuery搜索全部
        searchSourceBuilder.query(QueryBuilders.termQuery("name","spring"));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }
    @RequestMapping(value = "/termqueryId", method = RequestMethod.GET)
    public String termqueryId() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
        //定义id
        String[] ids = new String[]{"",""};
        searchSourceBuilder.query(QueryBuilders.termsQuery("_id",ids));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }
    @RequestMapping(value = "/matchquery", method = RequestMethod.GET)
    public String matchquery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
        //定义id
        searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开发框架")
                .minimumShouldMatch("80%"));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

    @RequestMapping(value = "/matchqueryOr", method = RequestMethod.GET)
    public String matchqueryOr() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询

//匹配关键字
searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }
    @RequestMapping(value = "/multiMatchQuery", method = RequestMethod.GET)
    public String multiMatchQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询

//匹配关键字
        //搜索方式
        //MultiMatchQuery
        searchSourceBuilder.query(QueryBuilders.multiMatchQuery("spring css","name","description")
                .minimumShouldMatch("50%")
                .field("name",));
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

    @RequestMapping(value = "/boolQuery", method = RequestMethod.GET)
    public String boolQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询

//匹配关键字
        //搜索方式
        //MultiMatchQuery
        //boolQuery搜索方式
        //先定义一个MultiMatchQuery
        MultiMatchQueryBuilder multiMatchQueryBuilder = QueryBuilders.multiMatchQuery("spring css", "name", "description")
                .minimumShouldMatch("50%")
                .field("name", );
        //再定义一个termQuery
        TermQueryBuilder termQueryBuilder = QueryBuilders.termQuery("studymodel", "");

        //定义一个boolQuery
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        boolQueryBuilder.must(multiMatchQueryBuilder);
        boolQueryBuilder.must(termQueryBuilder);

        searchSourceBuilder.query(boolQueryBuilder);
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name","studymodel","price","timestamp"},new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

    @RequestMapping(value = "/filterQuery", method = RequestMethod.GET)
    public String filterQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
//boolQuery搜索方式
        //先定义一个MultiMatchQuery
        MultiMatchQueryBuilder multiMatchQueryBuilder = QueryBuilders.multiMatchQuery("spring css", "name", "description")
                .minimumShouldMatch("50%")
                .field("name", );

        //定义一个boolQuery
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        boolQueryBuilder.must(multiMatchQueryBuilder);
        //定义过虑器
        boolQueryBuilder.filter(QueryBuilders.termQuery("studymodel",""));
        boolQueryBuilder.filter(QueryBuilders.rangeQuery("price").gte().lte());

        searchSourceBuilder.query(boolQueryBuilder);
//匹配关键字
        //搜索方式
        //MultiMatchQuery
        //boolQuery搜索方式
        //先定义一个MultiMatchQuery
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name","studymodel","price","timestamp"},new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }

    @RequestMapping(value = "/sortQuery", method = RequestMethod.GET)
    public String sortQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
        //boolQuery搜索方式
        //定义一个boolQuery
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        //定义过虑器
        boolQueryBuilder.filter(QueryBuilders.rangeQuery("price").gte().lte());

        searchSourceBuilder.query(boolQueryBuilder);
        //添加排序
        searchSourceBuilder.sort("studymodel", SortOrder.DESC);
        searchSourceBuilder.sort("price", SortOrder.ASC);
//匹配关键字
        //搜索方式
        //MultiMatchQuery
        //boolQuery搜索方式
        //先定义一个MultiMatchQuery
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name","studymodel","price","timestamp"},new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }
    @RequestMapping(value = "/highlightQuery", method = RequestMethod.GET)
    public String highlightQuery() {
        SearchRequest searchRequest = new SearchRequest("chenxuyou");
        //指定类型
        searchRequest.types("doc");
        //搜索源构建对象
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //搜索方式
        //根据id查询
        //boolQuery搜索方式
        //定义一个boolQuery
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        //定义过虑器
        boolQueryBuilder.filter(QueryBuilders.rangeQuery("price").gte().lte());

        searchSourceBuilder.query(boolQueryBuilder);
        //设置高亮
        HighlightBuilder highlightBuilder = new HighlightBuilder();
        highlightBuilder.preTags("<tag>");
        highlightBuilder.postTags("</tag>");
        highlightBuilder.fields().add(new HighlightBuilder.Field("name"));
//        highlightBuilder.fields().add(new HighlightBuilder.Field("description"));
        searchSourceBuilder.highlighter(highlightBuilder);
//匹配关键字
        //搜索方式
        //MultiMatchQuery
        //boolQuery搜索方式
        //先定义一个MultiMatchQuery
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name","studymodel","price","timestamp"},new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        // searchSourceBuilder.query(QueryBuilders.matchQuery("description","spring开 发").operator(Operator.OR));
        //设置源字段过虑,第一个参数结果集包括哪些字段，第二个参数表示结果集不包括哪些字段
        searchSourceBuilder.fetchSource(new String[]{"name", "studymodel", "price", "timestamp"}, new String[]{});
        //向搜索请求对象中设置搜索源
        searchRequest.source(searchSourceBuilder);
        //执行搜索,向ES发起http请求
        SearchResponse searchResponse = null;
        try {
            searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //搜索结果
        SearchHits hits = searchResponse.getHits();
        //匹配到的总记录数
        long totalHits = hits.getTotalHits();
        //得到匹配度高的文档
        SearchHit[] searchHits = hits.getHits();
        //日期格式化对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        for (SearchHit hit : searchHits) {
            //文档的主键
            String id = hit.getId();
            //源文档内容
            Map<String, Object> sourceAsMap = hit.getSourceAsMap();
            String name = (String) sourceAsMap.get("name");
            //由于前边设置了源文档字段过虑，这时description是取不到的
            String description = (String) sourceAsMap.get("description");
            //学习模式
            String studymodel = (String) sourceAsMap.get("studymodel");
            //价格
            Double price = (Double) sourceAsMap.get("price");
            //日期
            try {
                Date timestamp = dateFormat.parse((String) sourceAsMap.get("timestamp"));
                System.out.println(timestamp);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            System.out.println(price);
            System.out.println(name);
            System.out.println(studymodel);
            System.out.println(description);
        }
        return "ok";
    }
}