HarmonyOS 网络请求的JSON数据怎么动态转自定义模型class对象

export default class ResponseResult { 
  data: string | Resource; 
  constructor() { 
    this.code = ''; 
    this.msg = ''; 
    this.data = ''; 
  } 
} 
//网络请求 
export function httpRequestPost(url: string,requestData?:Object): Promise<ResponseResult> { 
  let serverData: ResponseResult = new ResponseResult(); 
  let httpRequest = http.createHttp(); 
  let responseResult = httpRequest.request(url, { 
    method: http.RequestMethod.POST, // 可选，默认为http.RequestMethod.GET 
    // 开发者根据自身业务需要添加header字段 
    header: { 
      'Content-Type': 'application/json' 
    }, 
  }); 
  return responseResult.then((data) => { 
    if (data.responseCode == 200) { 
      // 处理返回结果 
      let resultJson:ResponseResult = JSON.parse(data.result as string); 
      if (resultJson.msg == 'success') { 
        serverData.data = resultJson.data 
      } 
      else { 
        serverData.data = resultJson.data 
      } 
      serverData.code = resultJson.code; 
      serverData.msg = resultJson.msg; 
    } else { 
  
    } 
    return serverData; 
  }).catch(() => { 
    return serverData; 
  }) 
}