java - SSL 破损管道

Question

我在我的应用程序中发出 POST 请求，有时(如果我有大量的 Post 数据)，出现以下错误:

avax.net.ssl.SSLException: Write error: ssl=0x2f0610: I/O error during system call, Broken pipe

在下面的代码中执行 http.execute(httpost) 时。 有人知道如何避免这种情况吗？

我尝试使用 AndroidHttpClient，但找不到基本身份验证的有效方法 我尝试了 HttpsUrlConnection，但得到了同样的错误。

    public static String makePOSTRequest(String s, List<NameValuePair> nvps,
        String encoding) {
        String ret = "";
        UsernamePasswordCredentials c = new UsernamePasswordCredentials("XXX", "YYY");
        BasicCredentialsProvider cP = new BasicCredentialsProvider();
        cP.setCredentials(AuthScope.ANY, c);

        HttpParams httpParams = new BasicHttpParams();
        int connection_Timeout = 5000;
        HttpConnectionParams.setConnectionTimeout(httpParams,
                connection_Timeout);
        HttpConnectionParams.setSoTimeout(httpParams, connection_Timeout);
        DefaultHttpClient http = new DefaultHttpClient(httpParams);
        http.setCredentialsProvider(cP);
        HttpResponse res;
        try {
            HttpPost httpost = new HttpPost(s);
            httpost.setEntity(new UrlEncodedFormEntity(nvps,
                    HTTP.DEFAULT_CONTENT_CHARSET));
            res = http.execute(httpost);
            InputStream is = res.getEntity().getContent();
            BufferedInputStream bis = new BufferedInputStream(is);
            ByteArrayBuffer baf = new ByteArrayBuffer(50);
            int current = 0;
            while ((current = bis.read()) != -1) {
                baf.append((byte) current);
            }
            res = null;
            httpost = null;
            ret = new String(baf.toByteArray(), encoding);
            break;
        } catch (ClientProtocolException e) {
            ret = e.getMessage();

        } catch (IOException e) {
            ret = e.getMessage();
        }
    return ret;
}

编辑: 以下代码用于上传文件，如果我尝试上传小文件，代码可以工作，但如果文件变大，我会收到 broken pipe 错误。使用更快的 Internet 连接会增加文件大小，这似乎是服务器重置连接之前的时间问题。

public static boolean upload_image2(String url,
        List<NameValuePair> nameValuePairs, File file, String encoding) {
    boolean erg = false;

                    HttpParams httpParams = new BasicHttpParams();
            int connection_Timeout = 120000;

     HttpConnectionParams.setConnectionTimeout(httpParams,connection_Timeout);
       HttpConnectionParams.setSoTimeout(httpParams, connection_Timeout);
       http = new DefaultHttpClient(httpParams);
        HttpResponse res;
        UsernamePasswordCredentials c = new UsernamePasswordCredentials(username, password);
        BasicCredentialsProvider cP = new BasicCredentialsProvider();
        cP.setCredentials(AuthScope.ANY, c);


        try {
            HttpPost httpost = new HttpPost(url);

            MultipartEntity entity = new MultipartEntity(
                    HttpMultipartMode.STRICT);

            FileBody isb = new FileBody(file, "application/*");
            entity.addPart("File", isb);
            for (int index = 0; index < nameValuePairs.size(); index++) {
                ContentBody cb;
                // Normal string data
                cb = new StringBody(nameValuePairs.get(index).getValue(),
                        "", null);
                entity.addPart(nameValuePairs.get(index).getName(), cb);
            }

            httpost.setEntity(entity);

            res = http.execute(httpost);
            InputStream is = res.getEntity().getContent();
            BufferedInputStream bis = new BufferedInputStream(is);
            ByteArrayBuffer baf = new ByteArrayBuffer(50);
            int current = 0;
            while ((current = bis.read()) != -1) {
                baf.append((byte) current);
            }
            res = null;
            httpost = null;
            String ret = new String(baf.toByteArray(), encoding);
            LastError = ret;
            erg = true;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            LastError = e.getMessage();
            erg = false;
        } catch (IOException e) {
            // TODO Auto-generated catch block
            LastError = e.getMessage();
            erg = false;
        }
    return erg;
}

Answer 1

我在使用 DefaultHttpClient 时遇到了同样的问题，嗯，使用我自己的 httpclient 实现来支持 https。小文件工作正常，大文件一次又一次失败。

阅读此回复后，我已经按照接受的答案建议更改为 HttpsURLConnection，而且因为它是由 android (http://android-developers.blogspot.pt/2011/09/androids-http-clients.html) 推荐的。

问题来了。原来问题出在服务器上，我之前更改了 PHP 服务器的配置以接受更大的尺寸，但我完全忘记更改 nginx 的 client_max_body_size。进行小改动后，发送大文件就可以了。通过 HttpsUrlConnections 和 DefaultHttpClient。