mongo aggregate 用法记录
mongo 聚合查询查询还是很方便的,做下记录 依赖的jar是org.springframework.data.mongodb 1.9.6 低版本可能不支持.
数据结构 大概是 这是一份问卷,问卷有15题,统计
{
"_id": ObjectId("5a30eeef84aeea4fbcd6045c"),
"_class": "com.fjhb.elearning.model.QuestionnaireSurvey",
"questionnaireId": "321",
"questionnaireType": "2",
"completeTime": ISODate("2017-12-13T09:12:15.613+0000"),
"personMessage": {
"phone": "13003831002",
"jobType": NumberInt(2),
"identity": "农村校校长、园长",
"name": "",
"studentId": ""
},
"regionDto": {
"_id": "350102",
"parentId": "350100",
"path": "/350000/350100/350102",
"sort": NumberInt(0),
"name": "鼓楼区",
"version": "GB／T2260-2007",
"available": NumberInt(1),
"beginTime": ISODate("2018-01-02T16:00:00.000+0000"),
"endTime": ISODate("2018-01-03T16:00:00.000+0000")
},
"basicQuestionnaireSurvey": [{
"_id": "1",
"title": "1.您对本县（市、区）政府在优先发展教育，积极推动教育事业发展的总体评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "2",
"title": "2.您对本县（市、区）政府在促进教育公平、提高教育质量的总体评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "3",
"title": "3.您对本县（市、区）落实义务教育阶段就学生近入学政策是否满意？",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "4",
"title": "4.您对本县（市、区）解决义务教育阶段择校问题的评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "5",
"title": "5.您对本县（市、区）解决进城务工人员随迁子女就学问题的评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "6",
"title": "6. 您对本县（市、区）采取措施缩小城区与农村学校之间、学校与学校之间的办学条件差异是否满意？",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "7",
"title": "7.您对本县（市、区）中小学校校舍场所和设施设备改善情况的评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "8",
"title": "8.您对本县（市、区）在尊师重教，改善中小学教师（包括幼儿园、中职校和特殊学校教师）待遇方面的评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "9",
"title": "9.您对本县（市、区）中小学校长的选用、教师的聘用和校际交流工作是否满意？ ",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "10",
"title": "10. 您对本县（市、区）在推进教学改革，发展素质教育，提高教育质量方面的评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "11",
"title": "11. 您对本县（市、区）重视中小学教师的业务培训和专业发展，提高教师教书育人、立德树人能力的评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "12",
"title": "12. 您对本县（市、区）做好中小学校、幼儿园的科学合理布局的评价是：",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "13",
"title": "13.您对本县（市、区）中小学校、幼儿园做好学校安全稳定工作是否满意？",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "14",
"title": "14.您对本县（市、区）中小学校长（含幼儿园园长）的管理水平、教师的教学水平是否满意？",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
},
{
"_id": "15",
"title": "15.您对本县（市、区）中小学（含幼儿园）的教学质量是否满意？",
"basicQuestionItems": [{
"_id": "1",
"select": true,
"score": NumberInt(100),
"content": "满意"
},
{
"_id": "2",
"select": false,
"score": NumberInt(80),
"content": "基本满意"
},
{
"_id": "3",
"select": false,
"score": NumberInt(60),
"content": "一般"
},
{
"_id": "4",
"select": false,
"score": NumberInt(40),
"content": "不太满意"
},
{
"_id": "5",
"select": false,
"score": NumberInt(20),
"content": "不满意"
}
]
}
],
"platformId": "300417fe04e94eb9ac59807aa6db6bb2",
"platformVersionId": "96f9bb883e3e40a09eea69a1b5e2aaf0",
"projectId": "2c91128b5fa5b32c016010fb1fac111c",
"subProjectId": "2c91128b5fa5b32c016010fb1fb5111e"
}
数据结构
db.questionnaireSurvey.aggregate({"$unwind":"$basicQuestionnaireSurvey"},
{"$unwind":"$basicQuestionnaireSurvey.basicQuestionItems"},
{"$match":{"basicQuestionnaireSurvey.basicQuestionItems.select":{$eq:true}}},
{"$project":{qusetionId:"$basicQuestionnaireSurvey._id",
title:"$basicQuestionnaireSurvey.title",
satisfied: {$cond: { if: {$eq: ["$basicQuestionnaireSurvey.basicQuestionItems._id", "1" ] }, then: 1, else: 0 }},
basicSatisfaction:{$cond: { if: { $eq: ["$basicQuestionnaireSurvey.basicQuestionItems._id", "2" ] }, then: 1, else: 0 }},
commonly:{$cond: { if: { $eq: [ "$basicQuestionnaireSurvey.basicQuestionItems._id", "3" ] }, then: 1, else: 0 }},
notVerySatisfied:{$cond: { if: { $eq: [ "$basicQuestionnaireSurvey.basicQuestionItems._id", "4" ] }, then: 1, else: 0 }},
unSatisfied:{$cond: { if: { $eq: ["$basicQuestionnaireSurvey.basicQuestionItems._id", "5" ] }, then: 1, else: 0 }}
}},{"$group":{_id:{qusetionId:"$qusetionId",title:"$title"},satisfied:{$sum:"$satisfied"},
basicSatisfaction:{$sum:"$basicSatisfaction"},
commonly:{$sum:"$commonly"},
notVerySatisfied:{$sum:"$notVerySatisfied"},
unSatisfied:{$sum:"$unSatisfied"},
}}
);
sql
List<AggregationOperation> list = new ArrayList<>();
list.add(Aggregation.unwind("$basicQuestionnaireSurvey"));
list.add(Aggregation.unwind("$basicQuestionnaireSurvey.basicQuestionItems"));
list.add(Aggregation.match(Criteria.where("basicQuestionnaireSurvey.basicQuestionItems.select").is(true)));
list.add(Aggregation.project("_id").and("$basicQuestionnaireSurvey._id").as("questionId").and("$basicQuestionnaireSurvey.title").as("title").and(aggregationOperationContext -> {
DBObject condExpression = new BasicDBObject();
DBObject ifExpression = new BasicDBObject();
ifExpression.put("$eq", Arrays.asList("$basicQuestionnaireSurvey.basicQuestionItems.score", 100));
condExpression.put("if", ifExpression);
condExpression.put("then", 1);
condExpression.put("else", 0);
return new BasicDBObject("$cond", condExpression);
}).as("satisfied").and(aggregationOperationContext -> {
DBObject condExpression = new BasicDBObject();
DBObject ifExpression = new BasicDBObject();
ifExpression.put("$eq", Arrays.asList("$basicQuestionnaireSurvey.basicQuestionItems.score", 80));
condExpression.put("if", ifExpression);
condExpression.put("then", 1);
condExpression.put("else", 0);
return new BasicDBObject("$cond", condExpression);
}).as("basicSatisfaction").and(aggregationOperationContext -> {
DBObject condExpression = new BasicDBObject();
DBObject ifExpression = new BasicDBObject();
ifExpression.put("$eq", Arrays.asList("$basicQuestionnaireSurvey.basicQuestionItems.score", 60));
condExpression.put("if", ifExpression);
condExpression.put("then", 1);
condExpression.put("else", 0);
return new BasicDBObject("$cond", condExpression);
}).as("commonly").and(aggregationOperationContext -> {
DBObject condExpression = new BasicDBObject();
DBObject ifExpression = new BasicDBObject();
ifExpression.put("$eq", Arrays.asList("$basicQuestionnaireSurvey.basicQuestionItems.score", 40));
condExpression.put("if", ifExpression);
condExpression.put("then", 1);
condExpression.put("else", 0);
return new BasicDBObject("$cond", condExpression);
}).as("notVerySatisfied").and(aggregationOperationContext -> {
DBObject condExpression = new BasicDBObject();
DBObject ifExpression = new BasicDBObject();
ifExpression.put("$eq", Arrays.asList("$basicQuestionnaireSurvey.basicQuestionItems.score", 20));
condExpression.put("if", ifExpression);
condExpression.put("then", 1);
condExpression.put("else", 0);
return new BasicDBObject("$cond", condExpression);
}).as("unSatisfied").and(new AggregationExpression(){
@Override
public DBObject toDbObject(AggregationOperationContext context) { DBObject condExpression = new BasicDBObject();
DBObject ifExpression = new BasicDBObject();
ifExpression.put("$eq", Arrays.asList("$basicQuestionnaireSurvey.basicQuestionItems.score", 20));
condExpression.put("if", ifExpression);
condExpression.put("then", 1);
condExpression.put("else", 0);
return new BasicDBObject("$cond", condExpression); }
})
);
list.add(Aggregation.group("questionId", "title").sum("satisfied").as("satisfied").sum("basicSatisfaction").as("basicSatisfaction").sum("commonly").as("commonly").sum("notVerySatisfied").as("notVerySatisfied").sum("unSatisfied").as("unSatisfied")); Aggregation agg = Aggregation.newAggregation(list);
AggregationResults<MySyllabusAnswerCountKeyValue2> results = mongoTemplate.aggregate(agg, "questionnaireSurvey", MySyllabusAnswerCountKeyValue2.class);
results.getMappedResults();
java 代码
多个字段分组的话,建议直接用Map去接收返回值 得到List<Map>
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