分、 排序、按時間查詢
Query query = new Query();
//必須條件
Criteria c = Criteria.where("VINID").is(Map.get(vin));
//范圍條件
if(!StringUtils.isEmpty(start)&&StringUtils.isEmpty(end)){
c.and("TIME1").gte(GetTime1(start));
}else if(StringUtils.isEmpty(start)&&!StringUtils.isEmpty(end)){
c.and("TIME1").lte(GetTime1(end));
}else if(!StringUtils.isEmpty(start)&&!StringUtils.isEmpty(end)){
//對同一個屬性加兩次限制需這樣操作
c.andOperator(
c.where("TIME1").gte(GetTime1(start)),
c.where("TIME1").lte(GetTime1(end))
);
}
query.addCriteria(c);
//總數
num = (int) mongoTemplate.count(query,CarDataEx.class,"jmevTest");
System.out.println("總數:"+num);
ht.put("total", num);
//分頁
query.skip((page-1)*rows).limit(rows);
//排序
query.with(new Sort(Sort.Direction.DESC,"TIME1"));
//query.with(new Sort(properties));
rst = mongoTemplate.find(query,CarDataEx.class,"jmevTest");
二分組查詢
public Page<CourseDetail> listCourseDetails(QueryCourseDetailModel queryModel) { //條件一 where gradeId in (集合) and mark=true Criteria criteria = Criteria.where("gradeId").in(gradeIds).and("mark").is(true); if (null != status && status.size() > 0) { Criteria criteriaChild = new Criteria(); //條件二 criteriaChild 條件查詢 ( teacherCommentStatus = XX or parentsReplyTeacherStatus =XX ) criteriaChild.orOperator(Criteria.where("teacherCommentStatus").in(status), Criteria.where("parentsReplyTeacherStatus").is(replayStatus)); } //拼接最后語句 where gradeId in (集合) and mark=true and ( teacherCommentStatus = XX or parentsReplyTeacherStatus =XX ) criteria.andOperator(criteriaChild); //分組條件 GroupBy groupBy = new GroupBy("gradeId") .initialDocument("{ count: 0 }") .reduceFunction("function (doc,pre){pre.count +=1 ;}"); //使用 mongoTemplate.group 分組查詢 GroupByResults groupByResults = mongoTemplate. group(criteria, "homework", groupBy, Homework.class); //獲取結果 BasicDBList list = (BasicDBList) groupByResults.getRawResults().get("retval"); list.stream().map(map -> { BasicDBObject obj = (BasicDBObject) map; ...... return obj; }).collect(Collectors.toList()); return list; }