官方文档：http://mybatis-mp.cn

mybatis-mp 是一款超级好用ORM框架，它不是mybatis-plus；设计简单、 使用灵活、快捷、扩展性超强

JPA Hibernate JdbcTempte 等要么太死 太难 太呆；稍微复杂一点就需要拼sql 好累！！！

所以为什么不来试试 mybatis-mp；我只能说这太好用了，不信的 可以自己去试试，反正免费的！！！

1 单表：

 //单条 SysUser sysUser=QueryChain.of(sysUserMapper) .like(SysUser::getName,"xx") .limit(1) .get() //list List<SysUser> list=QueryChain.of(sysUserMapper) .like(SysUser::getName,"xx") .list() //分页 Pager<SysUser> page=QueryChain.of(sysUserMapper) .like(SysUser::getName,"xx") .paging(Pager.of(1,20)) 

2 连表：

 //VO @Data @ResultEntity(SysUser.class) public class SysUserRoleVo { private Integer id; private String userName; @ResultEntityField(target = SysUser.class, property = "password") private String pwd; @NestedResultEntity(target = SysRole.class) private SysRole role; } //单条 SysUserVO sysUserVO=QueryChain.of(sysUserMapper) .select(SysUserVO.class) .from(SysUser.class) .join(SysUser.class, SysRole.class, on -> on.eq(SysUser::getRoleId, SysRole::getId) .like(SysUser::getName,"xx") .limit(1) .returnType(SysUserVO.class) .get() //list List<SysUserVO> list=QueryChain.of(sysUserMapper) .select(SysUserVO.class) .from(SysUser.class) .join(SysUser.class, SysRole.class, on -> on.eq(SysUser::getRoleId, SysRole::getId) .like(SysUser::getName,"xx") .returnType(SysUserVO.class) .list() //分页 Pager<SysUserVO> page=QueryChain.of(sysUserMapper) .select(SysUserVO.class) .from(SysUser.class) .join(SysUser.class, SysRole.class, on -> on.eq(SysUser::getRoleId, SysRole::getId) .like(SysUser::getName,"xx") .returnType(SysUserVO.class) .paging(Pager.of(1,20)) 

复杂定制

展示 窗口函数能力 实现 ORM + SQL模板的厉害

  SysUserRoleAutoSelectVo vo = QueryChain.of(sysUserMapper) .select(SysUserRoleAutoSelectVo.class) .selectWithFun(SysRole::getId, c -> CmdTemplate.create(" RANK() OVER( ORDER BY {0}) ", c).as("RANK2")) .from(SysUser.class) .join(SysUser.class, SysRole.class) .returnType(SysUserRoleAutoSelectVo.class) .orderBy(SysUser::getId) .limit(1) .get(); 

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mybatis-mp 可以说 没有构建不出来的 sql 欢迎体验：http://mybatis-mp.cn