Method queryUser

controller/Demo.ts:15–17

(@param('userId') userId: string)

   */
  @GetMapping('/user/:userId')
  async queryUser(@param('userId') userId: string): Promise<CommonObj> {
    return this.userService.queryUserById(userId);
  }

  @PostMapping('/add-user')
  async insertUser(@request() user: CommonObj): Promise<CommonObj> {