HarmonyOS 鸿蒙Next：ArkTs 下网络请求使用 Post 表单传参时，Content-Type 设置为 multipart/form-data，按文档说明传参但参数无法传递到后台

问题已经解决，处理方式是手动创建 multipart/form-data 下的请求体，具体方式如下：

/**
 * 构建post 请求参数
 * @returns
 */
static buildFormData(content: string): FormData {
  let formData = new FormData()
  let splitStr = "f76d642e-a125-49b8-a90e-4cc887a758b1" // 这个要随机生成一个 uuid
  formData.contentType = "multipart/form-data; boundary=" + splitStr
  formData.body = "--" + splitStr + "\r\n" +
  "Content-Disposition: form-data; name=\"request\"" + "\r\n" +
  "Content-Length: " + content.length + "\r\n\r\n" +
  content + "\r\n" +
  "--" + splitStr + "--"
  return formData
}

//请求的配置
let requestOption = {
  method: http.RequestMethod.POST,
  header: {
    'Content-Type': formData.contentType
  },
  //POST 请求的body
  extraData: formData.body,
  //返回数据类型
  expectDataType: http.HttpDataType.STRING,
  usingCache: false,
  connectTimeout: 30_000,
  readTimeout: 30_000
}

多个参数的自己搞出来了。

static buildFormData(data?: object): FormData {
    let boundary = util.generateRandomUUID(false);
    let contentType = "multipart/form-data; boundary=" + boundary
    let body = "--" + boundary
    if (data && typeof data === 'object') {
      let entries: [string, string][] = Object.entries(data);
      entries.forEach((keyValues: [key: string,value: string], index: number) => {
        const key: string = keyValues[0]
        const value: string = keyValues[1]
        body +=  "\r\n"+"Content-Disposition: form-data; name=\"" + key + "\"" + "\r\n" +
          "Content-Length: " + value.length + "\r\n\r\n" +
          value + "\r\n"
        body += "--" + boundary
      });
      body += '--'
    }
    return { contentType, body }
}

按照这么传，我下面还有一个multiFormDataList，发现extraData传过去了，但是文件没传过去，还需要做什么处理嘛，

期待大佬回复