Question

当我尝试发布到服务器时出错：

05-05 12:37:05.824: W/System.err(20610): org.apache.http.NoHttpResponseException: The target server failed to respond
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:85)
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:174)
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:180)
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:235)
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:259)
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:279)
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:121)
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:428)
05-05 12:37:05.824: W/System.err(20610):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:670)
05-05 12:37:05.834: W/System.err(20610):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:509)
05-05 12:37:05.834: W/System.err(20610):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
05-05 12:37:05.834: W/System.err(20610):    at 
05-05 12:37:05.834: W/System.err(20610):    at 
05-05 12:37:05.834: W/System.err(20610):    at 
05-05 12:37:05.834: W/System.err(20610):    at android.os.AsyncTask$2.call(AsyncTask.java:287)
05-05 12:37:05.834: W/System.err(20610):    at java.util.concurrent.FutureTask.run(FutureTask.java:234)
05-05 12:37:05.834: W/System.err(20610):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
05-05 12:37:05.834: W/System.err(20610):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
05-05 12:37:05.834: W/System.err(20610):    at java.lang.Thread.run(Thread.java:856)

这是我的方法代码：

private HttpResponse connectAndDownload() {
            try {
                String postBody;
                if (requestItem == null) {
                    postBody = CollectBasicData.generateJson().toString();
                } else {
                    postBody = requestItem;
                }
                HttpParams httpParams = new BasicHttpParams();
                HttpProtocolParams.setVersion(httpParams, HttpVersion.HTTP_1_1);
                HttpProtocolParams.setContentCharset(httpParams, HTTP.UTF_8);
                final DefaultHttpClient client = new DefaultHttpClient(httpParams);

                final HttpUriRequest httpUriRequest;

                if(requestItem=="METHOD_GET"){
                    HttpGet httpget= new HttpGet(url);
                    if(DEBUG_VERSION.IS_DEBUG){
                        Log.v(" Download API", "url: " + url);
                        Log.v("DownloadApi", "postBody: " + postBody);
                    }
                    httpget.setHeader("Accept", "application/json");
                    httpget.setHeader("Content-type", "application/json");
                    httpUriRequest = httpget;
                }
                else{
                    HttpPost httppost = new HttpPost(url);
                    StringEntity se = new StringEntity(postBody, HTTP.UTF_8);
                    if(DEBUG_VERSION.IS_DEBUG){
                        Log.v(" Download API", "url: " + url);
                        Log.v("DownloadApi", "postBody: " + postBody);
                    }
                    httppost.setHeader("Accept", "application/json");
                    httppost.setHeader("Content-type", "application/json");
                    httppost.setEntity(se);
                    httpUriRequest = httppost;
                }


                HttpConnectionParams.setConnectionTimeout(httpUriRequest.getParams(), TIMEOUT);
                HttpConnectionParams.setSoTimeout(httpUriRequest.getParams(), TIMEOUT);
                httpUriRequest.addHeader(
                        "Authorization",
                        "Basic "
                                + Base64.encodeToString((CollectBasicData.getUserName() + ":" + CollectBasicData
                                        .getPassword()).getBytes(), Base64.NO_WRAP));

                HttpResponse response = client.execute(httpUriRequest);
                return response;

            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            } catch (ClientProtocolException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } 
            return null;
        }

我尝试以下解决方案： HttpClient on Android : NoHttpResponseException through UMTS/3G 和 http://code.google.com/p/android/issues/detail?id=13117 但没有效果。当我尝试使用3G发布服务时出现此错误。当我使用WIFI时，一切都还可以。

Answer 1

我不确定，但这可能会有所帮助。尝试使用Android的浏览器连接到您的服务器，以确定问题的确切位置（3G连接或您的应用程序），并确保您的服务器可以从公共互联网访问。

发布到服务时出错

1 个答案: