SSM案例-企業權限系統（17）- 用戶關聯角色

1 用戶關聯角色

1.1 頁面

1.2 DAO

public interface IUserDao {

@Select("select * from role where id not in" +
            "(select roleId from users_role where userId = #{userId})")
    List<Role> findOtherRoles(String userId) throws Exception;

    // 多個參數，參數前要加註解
    @Insert("insert into users_role(userId,roleId) values (#{userId},#{roleId})")
    void addRoleToUser(@Param("userId") String userId,@Param("roleId") String roleId);
}

1.3 Service

• 接口

public interface IUserService extends UserDetailsService {

    List<UserInfo> findAll() throws Exception;

    void save(UserInfo userInfo) throws Exception;

    UserInfo findById(String id) throws Exception;

    List<Role> findOtherRoles(String userId) throws Exception;

    void addRoleToUser(String userId, String[] roleIds);
}

• 實現類

@Service("userService")
@Transactional
public class UserServiceImpl implements IUserService {

    @Autowired
    private IUserDao userDao;

   
    @Override
    public List<Role> findOtherRoles(String userId) throws Exception {
        return userDao.findOtherRoles(userId);
    }

    @Override
    public void addRoleToUser(String userId, String[] roleIds) {
        for (String roleId : roleIds) {
            userDao.addRoleToUser(userId, roleId);
        }
    }
}

1.4 Controller

@Controller
@RequestMapping("/user")
public class UserController {

    @Autowired
    private IUserService userService;

    /**
     * 查詢用戶以及用戶可以添加的角色
     *
     * @param userId
     * @throws Exception
     */
    @RequestMapping("/findUserByIdAndAllRole.do")
    public ModelAndView findUserByIdAndAllRole(@RequestParam(name = "id", required = true) String userId) throws Exception {
        ModelAndView mv = new ModelAndView();
        // 1.根據用戶 id 查詢用戶
        UserInfo userInfo = userService.findById(userId);

        // 2.根據用戶 id 查詢可以添加的角色
        List<Role> otherRoles = userService.findOtherRoles(userId);

        mv.addObject("user", userInfo);
        mv.addObject("roleList", otherRoles);

        mv.setViewName("user-role-add");
        return mv;
    }

    @RequestMapping("/addRoleToUser")
    public String addRoleToUser(@RequestParam(name = "userId",required = true) String userId,
                             @RequestParam(name="ids",required = true) String[] roleIds) throws Exception{
        userService.addRoleToUser(userId, roleIds);

        return "redirect:findAll.do";
    }

}

---

• 添加角色前
  
  

---

• 添加角色後