MongoTemplate查询 Criteria对象代表的是查询条件

2019独角兽企业重金招聘Python工程师标准>>>

Criteria对象代表的是查询条件

 

1、举例说明

     (1)mongo sql 对应关系:

              db.users.find({name:"suns"});                 -------->Criteria criteria=new Criteria("name");

                                                                                                                criteria.is("suns");

     (2)两个查询条件:

               db.users.find({name:"suns",_id:22});----------->Criteria  criteria=new Criteria("name");

                                                                                                                 criteria.is("suns");

                                                                                                                 criteria.and("_id").is(22);

      (3)条件复杂(age>10)

               db.users.find({age:{$gt:10:}});           ------------>Criteria criteia=new Criteria("age");

                                                 criteria.gt("10");//如果是大于等于10，那么再添加一句话：criteria.and("age").is("10");即可

转载于:https://my.oschina.net/u/1037605/blog/752710