SSL断管

Question

我在我的应用程序和somtimes中发出POST请求（如果我有大量的Post数据），发生以下错误：

  

avax.net.ssl.SSLException：写入错误：ssl = 0x2f0610：系统调用期间的I / O错误，管道损坏

在下面的代码中执行http.execute（httpost）。 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 我尝试了一个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，代码可以正常工作，但如果文件变大，我收到管道错误。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

我使用DefaultHttpClient遇到了同样的问题，好吧，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，我已更改为HttpsURLConnection，就像接受的答案所示，也因为它是由android（http://android-developers.blogspot.pt/2011/09/androids-http-clients.html）推荐的。

问题依然存在。事实证明问题出现在服务器上，我之前已经改变了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。在做了那么小的改变之后发送大文件就行了。通过HttpsUrlConnections和DefaultHttpClient。

Answer 2

我无法使用DefaultHttpClient，AndroidHttpClient或Abstract解决问题，但最终找到了一个解决方案，使用HttpsUrlRequest ant身份验证通过头而不是CredentielsService：

public static boolean upload_image5(String urls,File file, String encoding){
    HttpURLConnection connection = null;
    DataOutputStream outputStream = null;
    DataInputStream inputStream = null;
    String myfilename = file.getName();
    String urlServer = urls;
    String lineEnd = "\r\n";
    String twoHyphens = "--";
    String boundary =  "*****";
    boolean erg = false;
    int bytesRead, bytesAvailable, bufferSize;
    byte[] buffer;
    int maxBufferSize = 1*1024*1024;

    try
    {
    FileInputStream fileInputStream = new FileInputStream(file);

    URL url = new URL(urlServer);
    connection = (HttpsURLConnection) url.openConnection();

    // Allow Inputs & Outputs
    connection.setDoInput(true);
    connection.setDoOutput(true);
    connection.setUseCaches(false);

    // Enable POST method
    connection.setRequestMethod("POST");

    connection.setRequestProperty("Connection", "Keep-Alive");
    connection.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
    connection.addRequestProperty("Authorization","Basic [YOUR MD5 LOGIN VALUE]");
    outputStream = new DataOutputStream( connection.getOutputStream() );
    outputStream.writeBytes(twoHyphens + boundary + lineEnd);

    outputStream.writeBytes("Content-Disposition: form-data; name=\"DestFileName\"");
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(myfilename);
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(twoHyphens + boundary + lineEnd);
    outputStream.writeBytes("Content-Disposition: form-data; name=\"Target\"" );
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes("DOC");
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(twoHyphens + boundary + lineEnd);
    outputStream.writeBytes("Content-Disposition: form-data; name=\"filename\"");
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(myfilename);
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(twoHyphens + boundary + lineEnd);
    outputStream.writeBytes("Content-Disposition: form-data; name=\"File\"; filename=\"" + myfilename + "\"");
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes("Content-Type: application/*");
    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(lineEnd);
    //hier File schreiben
    bytesAvailable = fileInputStream.available();
    bufferSize = Math.min(bytesAvailable, maxBufferSize);
    buffer = new byte[bufferSize];
    bytesRead = fileInputStream.read(buffer, 0, bufferSize);

    while (bytesRead > 0)
    {
    outputStream.write(buffer, 0, bufferSize);
    bytesAvailable = fileInputStream.available();
    bufferSize = Math.min(bytesAvailable, maxBufferSize);
    bytesRead = fileInputStream.read(buffer, 0, bufferSize);
    }

    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);


    fileInputStream.close();


    try {
        inputStream = new DataInputStream(connection.getInputStream()); 
        StringBuilder response = new StringBuilder();
        String line;
        while ((line = inputStream.readLine()) != null) {
            response.append(line).append('\n');
        }
        LastError =response.toString();
        erg = true;
    } catch (IOException e) { 
        LastError = e.getMessage();
        erg = false;
    } finally { 
        if (inputStream != null){
            try { 
                inputStream.close(); 
            } catch (IOException e) { 
                e.printStackTrace();
            } 
        }
    }

    outputStream.flush();
    outputStream.close();
    }
    catch (Exception ex)
    {
        LastError = ex.getMessage();
        erg = false;
    }
    return erg;
}

Answer 3

我遇到了同样的错误。问题出在Android库中，使用DefaultHttpClient已经存在，因为Android API级别1和AndroidHttpClient自Android API级别8开始可用。这是android https://code.google.com/p/android/issues/detail?id=8625中的错误

我的问题是： 默认超时为60秒。当我在Wireshark中运行连接时。这是创建握手，他一直在等待ApplicationData，但他没有得到它，所以在超时发送FIN后我得到了：javax.net.ssl.SSLException：写入错误：ssl = 0x2f0610：I / O系统调用期间出错，管道损坏。

我解决了我的问题设置超时，http连接在5分钟或某个值超过60秒。如果我可以建议如何解决您的问题在服务器Wireshark上运行并通过移动设备收听通信。