2.5 使用LambdaQueryChainWrapper创建 MyBatis-Plus还提供了一种链式查询的方式,和上面的代码效果一样。 但是这种写法偏向于炫技,可读性没有上面的代码强,大家可以根据需要自行选择方式。 @Test public void testQueryWrapper5() { List<User> userList = new LambdaQueryChainWrapper<>(userMapper).like(User::get...
QueryChainWrapper 是 MyBatis-Plus 提供的一个链式查询工具,可以简化复杂查询的编写。例如: QueryChainWrapper<User> wrapper = new QueryChainWrapper<>(userMapper); wrapper.select("id", "name", "age") .eq("gender", "male") .between("age", 20, 30) .inSql("city", "select city from city_...
wrapper.in("实体类::查询字段", "包括的值,分割"); //相当于in wrapper.orderByAsc("实体类::查询字段"); //升序 wrapper.orderByDesc("实体类::查询字段");//降序 wrapper.ge("实体类::查询字段", "要比较的值"); //大于等于 wrapper.le("实体类::查询字段", "要比较的值"); //小于等于 ...
wrapper.in("实体类::查询字段", "包括的值,分割"); //相当于in wrapper.orderByAsc("实体类::查询字段"); //升序 wrapper.orderByDesc("实体类::查询字段");//降序 wrapper.ge("实体类::查询字段", "要比较的值"); //大于等于 wrapper.le("实体类::查询字段", "要比较的值"); //小于等于...
LambdaQueryWrapper<Xuqiu> xuqiuwrapper = Wrappers.<Xuqiu>lambdaQuery(); xuqiuwrapper.isNull(Xuqiu::getPaiqiyuefen); xuqiuwrapper.orderByDesc(Xuqiu::getYouxianji,Xuqiu::getZhongyaochengdu,Xuqiu::getGongzuoliang); List<Xuqiu> xuqius = xuqiuMapper.selectList(xuqiuwrapper);...
("实体类::查询字段");//相当于group by分组wrapper.in("实体类::查询字段","包括的值,分割");//相当于inwrapper.orderByAsc("实体类::查询字段");//升序wrapper.orderByDesc("实体类::查询字段");//降序wrapper.ge("实体类::查询字段","要比较的值");//大于等于wrapper.le("实体类::查询字段",...
UpdateWrapper<User> updateWrapper =newUpdateWrapper<>(); updateWrapper.in("age",Arrays.asList(20,30,40)); updateWrapper.set("name","jack"); updateWrapper.set("age",43); updateWrapper.set("email","sakara@qq.top"); userService.update(updateWrapper); ...
StringquerySql="SELECT a.*, b.org_id FROM t_game AS a LEFT JOIN t_game_game_org AS b ON b.game_id = a.id "; StringwrapperSql="SELECT * from ( "+querySql+" ) AS q ${ew.customSqlSegment}"; /** * 分页查询 */ @Select(wrapperSql) ...
privateList<HwSecuritiesInfo>query(QueryParam param){QueryWrapper<HwSecuritiesInfo>wrapper=newQueryWrapper<>();wrapper.lambda().gt(HwSecuritiesInfo::getId,param.getJsid()).orderByAsc(HwSecuritiesInfo::getId);wrapper.lambda().select(HwSecuritiesInfo::getId,HwSecuritiesInfo::getBusinessId,HwSecuritiesInf...
使用LambdaQueryChainWrapper链式条件构造器构造条件,然后传给getOne方法去查询 重现步骤(如果有就写完整) @test void testWrapper(){ LambdaQueryWrapper queryWrapper = new LambdaQueryWrapper<>(); queryWrapper.eq(User::getId, 1650769863515734018L); System.out.println(userManagerImpl.getOne(queryWrapper)); Lambda...