MyBatisGX 示例工程：CRUD + 关联查询完整演示

第一步：引入依赖

xml 复制代码

<dependency>
    <groupId>com.mybatisgx</groupId>
    <artifactId>mybatisgx-spring-boot3-starter</artifactId>
    <version>0.0.4</version>
</dependency>

第二步：service代码

定义查询实体

java 复制代码

@Data
@QueryEntity(User.class)
public class UserQuery extends User {

    private String nameLike;
}

编写service代码

java 复制代码

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserDao userDao;
    @Autowired
    private RoleDao roleDao;

    @Transactional(rollbackFor = Exception.class)
    @Override
    public int add(User user) {
        this.userDao.insert(user);

        List<Role> roleList = user.getRoleList();
        this.roleDao.insertBatch(roleList);

        return 1;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public int delete(Long id) {
        return this.userDao.deleteById(id);
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public int modify(User user) {
        return this.userDao.updateById(user);
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public User findById(Long id) {
        return this.userDao.findById(id);
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public List<User> list(UserQuery userQuery) {
        return this.userDao.findList(userQuery);
    }
}

第三步：直接调用

请求：

shell 复制代码

curl -X GET "http://localhost:8080/mybatisgx-example/user/list" --data-urlencode "nameLike=管理"

结果：

json 复制代码

[
  {
    "id": 1, "name": "张三",
    "roleList": [
      {
        "id": 1, "code": "ADMIN", "name": "管理员", "userList": null,
        "menuList": [
          {"id": 1, "code": "USER_MANAGE", "name": "用户管理", "roleList": null},
          {"id": 2, "code": "ROLE_MANAGE", "name": "角色管理", "roleList": null},
        ]
      }
    ]
  },
  {"id": 2, "name": "李四",
    "roleList": [
      {
        "id": 2, "code": "USER", "name": "普通用户",
        "userList": null,
        "menuList": [
          {"id": 1, "code": "USER_MANAGE", "name": "用户管理", "roleList": null}
        ]
      }
    ]
  },
  {
    "id": 3,
    "name": "王五",
    "roleList": [
      {
        "id": 3, "code": "GUEST", "name": "访客",
        "userList": null,
        "menuList": [
          {"id": 1, "code": "USER_MANAGE", "name": "用户管理", "roleList": null}
        ]
      }
    ]
  }
]

项目已经开源github：github.com/cris-xue/my...
demo：github.com/cris-xue/my...
如果你感兴趣可以直接跑这个 demo