基于Spring-Boot框架的Elasticsearch搜索服务器配置

一、相关包maven配置

  <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-elasticsearch -->
         <dependency>
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-elasticsearch</artifactId>
             <version>1.3.6.RELEASE</version>
         </dependency>    

spring-boot  1.3.8.RELEASE能支持配置注解故，elasticsearch的配置可以在 xxx.properties文件中配置

# ELASTICSEARCH (ElasticsearchProperties)
spring.data.elasticsearch.cluster-name=elasticsearch
spring.data.elasticsearch.cluster-nodes=192.9.8.222:9300
spring.data.elasticsearch.repositories.enabled=true

这样可以通过框架自动注入实例化类

    @Autowired
    private ElasticsearchTemplate elasticsearchTemplate;

二、处理ES返回数据

获取搜索内容：

     // 空条件查询默认匹配全部
         NativeSearchQueryBuilder nsbIndex = new NativeSearchQueryBuilder();
         MatchAllQueryBuilder qbIndex = QueryBuilders.matchAllQuery();

         // 设置分页参数
         Pageable pageable = new PageRequest(page, limit);
         nsbIndex.withPageable(pageable);
         nsbIndex.withQuery(qbIndex);
         SearchQuery searchQuery = nsbIndex.build();
         Page<IndexSearch> pageIndexes = null;
         try {
             pageIndexes = elasticsearchTemplate.queryForPage(searchQuery, IndexSearch.class, new ElasticsearchResultMapper(heightFields));
         } catch (Exception e) {
             throw new YMLibWebApplicationException("搜索条件为空,查询全部文献出错,出错原因：" + e.getMessage(), e);
         }
        List<IndexSearch> indexes = pageIndexes.getContent();
        .......

处理个性化设置类，如高亮显示属性：

上图红色部分类是一个个性化设置类，继承重写了SearchResultMapper 的mapResults方法

 public class ElasticsearchResultMapper implements SearchResultMapper {
     private static Logger log = LoggerFactory.getLogger(ElasticsearchResultMapper.class);

     private final List<String> heightFields = new ArrayList<String>();

     public ElasticsearchResultMapper(){

     }

     public ElasticsearchResultMapper(List<String> heightFields){
         this.heightFields.addAll(heightFields);
     }

     @Override
     public <T> FacetedPage<T> mapResults(SearchResponse response, Class<T> clazz, Pageable pageable) {
         // TODO Auto-generated method stub
         // 将返回的结果标记指定的属性高亮显示
         List<Object> chunk = setHighlightFieldsForSearchHits(response, heightFields);
         // 该搜索条件总共命中多少条数据
         long totalHits = response.getHits().totalHits();
         // System.out.println("totalHits = "+totalHits);
         return new FacetedPageImpl((List<T>) chunk, pageable, totalHits);
     }

     /**
      *
      * @remark:[]
      * @author:hoojjack
      * @Description:TODO(对返回的结果设置高亮属性)
      */
     public List<Object> setHighlightFieldsForSearchHits(@NotNull SearchResponse response,
             @NotNull final List<String> heightFields) {
         if (0 == heightFields.size()) {
             System.out.println("heightFields不能为空");
             return null;
         }
         List<Object> chunk = new ArrayList<Object>();
         for (SearchHit searchHit : response.getHits()) {
             // 打印出_score
 //            System.out.println("searchHitScore = " + searchHit.getScore() + "searchHitSource=" + searchHit.getSource());
             if (response.getHits().getHits().length <= 0) {
                 log.info("未命中搜索结果");
                 return null;
             }
             Map<String, Object> entityMap = searchHit.getSource();
             if (null == entityMap) {
                 log.error("搜索返回的结果中无_source属性值");
                 entityMap = new HashMap<String, Object>();
             }
             for (String highName : heightFields) {
                 //枚举类型属性不能标亮显示,标亮显示会多久一些标识，导致找不到相对应的枚举类型
                 if("literClassfication".equals(highName)){
                     continue;
                 }
                 if (null != searchHit.getHighlightFields().get(highName)) {
                     Text text[] = searchHit.getHighlightFields().get(highName).fragments();
                     if (text.length > 0) {
                         String highValue = searchHit.getHighlightFields().get(highName).fragments()[0].toString();
                         entityMap.put(highName, highValue);
                     }
                 }
             }
             chunk.add(entityMap);
         }
         return chunk;
     }

 }

以上只是学习的一部分记录，随着学习的深入，再继续更新！