一款新的超强的 ORM 框架 mybatis-mp ！！！
官网 ：https://mybatis-mp.cn
1.单表查询
SysUser sysUser = QueryChain.of(sysUserMapper)
.eq(SysUser::getId, 1)
.eq(SysUser::getUserName,'admin')
.get();
2.VO映射
@Data
@ResultEntity(SysUser.class)
public class SysUserVo {
private Integer id;
private String userName;
//字段名字不一样时
@ResultEntityField(property = "password")
private String pwd;
}
SysUserVO sysUserVO = QueryChain.of(sysUserMapper)
.eq(SysUser::getId, 1)
.eq(SysUser::getUserName,'admin')
.returnType(SysUserVO.class)
.list();
join 查询
@Data
@ResultEntity(SysUser.class)
public class SysUserVo {
private Integer id;
private String userName;
//字段名字不一样时
@ResultEntityField(property = "password")
private String pwd;
//映射一个对象 1对1
@NestedResultEntity(target = SysRole.class)
prviate SysRole sysRole;
//映射多个对象 1对多
@NestedResultEntity(target = SysRole.class)
prviate List<SysRole> sysRoles;
}
List<SysUserRoleVO> list = QueryChain.of(sysUserMapper)
.from(SysUser.class)
.join(SysUser.class, SysRole.class)
.returnType(SysUserRoleVO.class)
.list();
还有很多很多超级方便有趣的写法，欢迎大家来使用https://mybatis-mp.cn
例如
1 .多表join A内嵌B B内嵌C 都可以
2 .不使用join 使用@Fetch注解+fetchFilter方法实现 将A JOIN B 变成 query A + query B
3 .使用@Paging 注解 实现你的xml 自动分页
4 .使用SQL模板，让你ORM 更简单更容易扩展，再也不怕被框架限制了
