android 上传图片 java.net.SocketException: Socket closed

[牛大炮]

百度了很久，也没解决哎
代码如下
求大神Help

 public static InputStream image_post(String url, List<NameValuePair> params) throws AppException {
        InputStream is = null;
        String result = "";
        int time = 0;
        do {
            try {
                DefaultHttpClient httpclient = new DefaultHttpClient();
                httpclient.getParams().setParameter(
                        CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
                //设置图片读取超时时间
                //httpclient.getParams().setParameter("http.socket.timeout", new Integer(30000));
                HttpPost httppost = new HttpPost(url);
                MultipartEntity mpEntity = new MultipartEntity();
                for (int index = 0; index < params.size(); index++) {
                    if (params.get(index).getName().equals("filePath")) {
                        String filePath = new String(params.get(index).getValue());
                        String mimeType = "image/jpeg";
                        String extension = filePath.substring(filePath.lastIndexOf(".") + 1,
                                filePath.length());
                        File file = new File(filePath);
                        if (null != extension && !"".equals(extension)) {
                            if (extension.equals("jpg")) {
                                mimeType = "image/jpeg";
                            } else if (extension.equals("png")) {
                                mimeType = "image/png";
                            } else if (extension.equals("gif")) {
                                mimeType = "image/gif";
                            }
                        }
                        ContentBody cbFile = new FileBody(file, mimeType);
                        mpEntity.addPart("imgFile", cbFile);
                    } else {
                        mpEntity.addPart(params.get(index).getName(), new StringBody(params.get(index).getValue()));
                    }
                }
                httppost.setEntity(mpEntity);
                HttpResponse response = httpclient.execute(httppost);
                is = response.getEntity().getContent();
                httpclient.getConnectionManager().shutdown();
                break;
            } catch (HttpException e) {
                time++;
                if (time < RETRY_TIME) {
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e1) {
                    }
                    continue;
                }
                // 发生致命的异常，可能是协议不对或者返回的内容有问题
                e.printStackTrace();
                throw AppException.http(e);
            } catch (IOException e) {
                time++;
                if (time < RETRY_TIME) {
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e1) {
                    }
                    continue;
                }
                // 发生网络异常
                e.printStackTrace();
                throw AppException.network(e);
            }
        } while (time < RETRY_TIME);

        return is;

仅剩的10分 奉献上了~