获取网络图片，httpRequest.request报错error code

httpRequest(urlAddr: string) { 
  let httpRequest = http.createHttp() 
  // httpRequest.on(“headersReceive”, (header: Object) => { 
  // console.info("header: " + JSON.stringify(header)) 
  // }) 
  httpRequest.request(//网络图片地址 
    urlAddr, 
    {“usingCache”:true, 
      // “readTimeout”:60000, 
      // “connectTimeout”:60000, 
      // “usingProtocol”:http.HttpProtocol.HTTP2 
    }, 
    (error, data) => { 
      if (error) { 
        console.log("error code: " + error.code + ", msg: " + error.message) 
      } else { 
        let code = data.responseCode 
        if (ResponseCode.ResponseCode.OK == code) { 
          let res: ArrayBuffer = data.result as ArrayBuffer 
          //通过获取到的uri创建图片源实例。 
          let imageSource = image.createImageSource(res) 
          class tmp { 
            height: number = 100 
            width: number = 100 
          } 
 
          let si: tmp = new tmp() 
          let options: Record<string, number | boolean | tmp> = { 
            'alphaType': 0, // 透明度 
            'editable': false, // 是否可编辑 
            'pixelFormat': 3, // 像素格式 
            'scaleMode': 1, // 缩略值 
            'size': { height: 100, width: 100 } 
          } // 创建图片大小 
          //将图片数据解析为pixelmap，并设置option属性。 
          imageSource.createPixelMap(options).then((pixelMap) => { 
            // 将pixelmap通过状态变量image传递给Image组件，将图片信息加载出来。 
            let item:PictureItem = new PictureItem(0, pixelMap) 
            this.services.push(item) 
          }) 
        } else { 
          console.log("response code: " + code) 
        } 
      } 
    } 
  ) 
  // httpRequest.off("headersReceive") 
  httpRequest.destroy() 
}