Question

当我将图片上传到Google云端存储时，我得到了这个

    HTTP/1.1 200 OK
X-GUploader-UploadID    AEnB2UrQyfCePM_5kYDFy1sJchgXCTkmRH8sU4S8NrWa-KzVoovFtD5iz8CIAUjegqBfBTK8ACiid0XazBRKqpZRvmUE03JNQg
X-AppEngine-Estimated-CPM-US-Dollars    $0.000000
X-AppEngine-Resource-Usage  ms=130 cpu_ms=38
Date    Tue, 05 Apr 2016 14:01:11 GMT
Pragma  no-cache
Expires Fri, 01 Jan 1990 00:00:00 GMT
Cache-Control   no-cache, must-revalidate
Content-Length  0
Server  UploadServer
Content-Type    text/html; charset=UTF-8

而不是这个

HTTP/1.1 200 OK
X-GUploader-UploadID    AEnB2UqEWk0UEztkHlBDHW5x49RYWkkIfPoHCZ_2g0YpZgvXke7blE7VM8FCJOjoAng6x5kySCLcsoccZVNyS9PdG6UU1F9Q1A
Content-Type    application/json
Content-Encoding    gzip
X-AppEngine-Estimated-CPM-US-Dollars    $0.000041
X-AppEngine-Resource-Usage  ms=1256 cpu_ms=359
Vary    Accept-Encoding
Date    Tue, 05 Apr 2016 13:44:20 GMT
Pragma  no-cache
Expires Fri, 01 Jan 1990 00:00:00 GMT
Cache-Control   no-cache, must-revalidate
Content-Length  307
Server  UploadServer

在我的Android应用程序中，我添加了头文件Application / json，我尝试将图像作为multipart发送，因此第二种内容类型是image / png

来自android app的代码：

   @Override
        protected Void doInBackground(File... params) {


            File file = params[0];

            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(url);
            httppost.setHeader("X-Requested-With","XMLHttpRequest");
            httppost.setHeader("Accept","application/json");

            FileBody filebody = new FileBody(file, ContentType.create("image/jpeg"), file.getName());

            MultipartEntityBuilder multipartEntity = MultipartEntityBuilder.create();
            multipartEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
            multipartEntity.addPart("file", filebody);
            httppost.setEntity(multipartEntity.build());
            System.out.println( "executing request " + httppost.getRequestLine( ) );
            try {
                HttpResponse response = httpclient.execute( httppost );
                Log.i("response", response.getStatusLine().toString());
            } catch (ClientProtocolException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

            httpclient.getConnectionManager( ).shutdown( );

            return null;
        }

为什么我得到html / text内容类型而不是json？服务器响应是200，但我没有获得任何JSON。请帮我。 THX

响应：

   HTTP/1.1 200 OK
X-GUploader-UploadID: AEnB2UqF16tZOCnavA58S1qxTXXopXz5ESh3YIU3ksEv9UsQ6Ro4Oyw03i1CVF7M7GpsLi8_p9ua-agn9upJND_mrXCTGMO-nA
X-AppEngine-Estimated-CPM-US-Dollars: $0.000000
X-AppEngine-Resource-Usage: ms=1164 cpu_ms=28
Date: Tue, 05 Apr 2016 14:29:54 GMT
Pragma: no-cache
Expires: Fri, 01 Jan 1990 00:00:00 GMT
Cache-Control: no-cache, must-revalidate
Content-Length: 0
Server: UploadServer
Content-Type: text/html; charset=UTF-8

Answer 1

所以，问题是，我得到了空身体，尽管200 Ok回应。几个小时后，我注意到，我需要在Body

中使用特殊的name

Content-Disposition: form-data; name="news_file"; filename="news.txt"\r\n

在此之前，我使用随机名称，它是测试，abc等。但是。此名称是表单的名称，因此这应该是表单的名称，而不是您想要的名称。希望这对某人有所帮助。

在android中，这应该是这样的。我使用改造。

  @Multipart
    @POST("/_ah/upload/{key}")
    void imageUpload(@EncodedPath("key") String key, @Part("news_file") TypedFile photoFile,Callback<List<ImageUploadResponse>> callback);

看一看，@Part与名称相同（例如news_file）

为什么我得到html / text内容类型而不是json？

1 个答案: