MyBatisPlus（九）模糊查询

说明

模糊查询，对应SQL语句中的 like 语句，模糊匹配“要查询的内容”。

like

    /*** 查询用户列表， 查询条件：姓名包含 "J"*/@Testvoid like() {String name = "J";LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();wrapper.like(StringUtils.hasText(name), User::getName, name);List<User> users = mapper.selectList(wrapper);log.info(users.toString());}

notLike

    /*** 查询用户列表， 查询条件：姓名不包含 "J"*/@Testvoid notLike() {String name = "J";LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();wrapper.notLike(StringUtils.hasText(name), User::getName, name);List<User> users = mapper.selectList(wrapper);log.info(users.toString());}

likeLeft

    /*** 查询用户列表， 查询条件：左模糊查询，姓名以 "e" 结尾*/@Testvoid likeLeft() {String name = "e";LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();wrapper.likeLeft(StringUtils.hasText(name), User::getName, name);List<User> users = mapper.selectList(wrapper);log.info(users.toString());}

likeRight

    /*** 查询用户列表， 查询条件：右模糊查询，姓名以 "张" 开头*/@Testvoid likeRight() {String name = "张";LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();wrapper.likeRight(StringUtils.hasText(name), User::getName, name);List<User> users = mapper.selectList(wrapper);log.info(users.toString());}

notLikeLeft

    /*** 查询用户列表， 查询条件：左模糊查询，姓名不以 "e" 结尾*/@Testvoid notLikeLeft() {String name = "e";LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();wrapper.notLikeLeft(StringUtils.hasText(name), User::getName, name);List<User> users = mapper.selectList(wrapper);log.info(users.toString());}

notLikeRight

    /*** 查询用户列表， 查询条件：右模糊查询，姓名不以 "张" 开头*/@Testvoid notLikeRight() {String name = "张";LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();wrapper.notLikeRight(StringUtils.hasText(name), User::getName, name);List<User> users = mapper.selectList(wrapper);log.info(users.toString());}