项目加入MongoDB支持,今天第一次用到,学新东西要做笔记。
MongoDB Version:3.4.6 spring-data-mongodb Version:1.10.23.RELEASE
org.springframework.data.mongodb.core.query.Criteria
Criteria | Mongodb | 说明 | 示例 |
---|---|---|---|
Criteria and (String key) | $and | 并且 | criteria.and("name")… |
Criteria andOperator (Criteria… criteria) | $and | 并且 | criteria.andOperator(Criteria.where("name")…)… |
Criteria orOperator (Criteria… criteria) | $or | 或者 | criteria.orOperator(Criteria.where("name")…)… |
Criteria is (Object o) | $is | 等于 | criteria.and("name").is("tom") |
Criteria ne (Object o) | $ne | 不等于 | criteria.and("name").ne("tom") |
Criteria lt (Object o) | $lt | 小于 | criteria.and("age").lt(20) |
Criteria lte (Object o) | $lte | 小等于 | criteria.and("age").lte(20) |
Criteria gt (Object o) | $gt | 大于 | criteria.and("age").gt(20) |
Criteria gte (Object o) | $gte | 大于等于 | criteria.and("age").gte(20) |
Criteria in (Object… o) | $in | 包含 | criteria.and("name").in("tom","jerry"…) |
Criteria nin (Object… o) | $nin | 不包含 | criteria.and("name").nin("tom","jerry"…) |
Criteria regex(Pattern pattern) | $regex | 模糊查询 | criteria.and("name").regex(/Pattern.compile("^.*t.*$")) |
一些常用的查询示例,做个简单的笔记
// SQL: name not like '张%' Criteria.where("name").regex(Pattern.compile("^张.*$")); // SQL: interest like '%球%' Criteria.where("interest").regex(Pattern.compile("^.*球.*$")); // SQL: address not like '浙江%' Criteria.where("address").not().regex(Pattern.compile("^.*浙江.*$")); // SQL: interest not null and interest != '' and interest = '无' Criteria.where("interest").is(null).is("").is("无"); // SQL: interest = '户外' or interest = '阅读' or interest = '音乐' new Criteria().orOperator( Criteria.where("interest").is("户外"), Criteria.where("interest").is("阅读"), Criteria.where("interest").is("音乐")); // SQL: (address like '%杭州%' and sex = 1) or (address like '%苏州%' and sex = 0) new Criteria().orOperator( Criteria.where("address").regex(Pattern.compile("^.*杭州.*$")).and("sex").is(1), Criteria.where("address").regex(Pattern.compile("^.*苏州.*$")).and("sex").is(0)); // SQL: (interest = '户外' and sex = 0) or (interest = '音乐' and sex = 1) new Criteria().orOperator( new Criteria().andOperator(Criteria.where("interest").is("户外"), Criteria.where("sex").is(0)), new Criteria().andOperator(Criteria.where("interest").is("音乐"), Criteria.where("sex").is(1)));
org.springframework.data.mongodb.core.query.Query
org.springframework.data.mongodb.core.MongoTemplate
Query query = new Query(); query.addCriteria(criteria); query.skip(current); query.limit(size); query.with(new Sort(Sort.Direction.DESC, "createTime")); List<Customer> list = this.mongoTemplate.find(query, Customer.class); long count = this.mongoTemplate.count(query, Customer.class);