5
द्वारा रीसेट रीसेट मैं एक ऐसे सर्वर पर काम कर रहा हूं जो वेब सर्वर से डेटा डाउनलोड कर रहा है। ऐसा लगता है कि शुरुआत में किसी भी समस्या के बिना डेटा डाउनलोड करना प्रतीत होता है, लेकिन कुछ दिन पहले मैं इस तरह के अपवाद प्राप्त करना शुरू करता हूं : javax.net.ssl.SSLException: Read error: ssl=0x7a6588: I/O error during system call, Connection reset by peer और मुझे यकीन नहीं है कि उस समस्या का कारण क्या है और मैं इसे कैसे ठीक कर सकता हूं।एंड्रॉइड एचटीटीपीएस अपवाद सहकर्मी
public void UseHttpsConnection(String url, String charset, String query) {
try {
final TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
@Override
public void checkClientTrusted(final X509Certificate[] chain, final String authType) {
}
@Override
public void checkServerTrusted(final X509Certificate[] chain, final String authType) {
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return null;
}
} };
// Install the all-trusting trust manager
final SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
// Create an ssl socket factory with our all-trusting manager
final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
if (url.startsWith("https://")) {
HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier(){
public boolean verify(String hostname, SSLSession session) {
return true;
}});
}
System.setProperty("http.keepAlive", "false");
HttpsURLConnection connection = (HttpsURLConnection) new URL(url).openConnection();
connection.setSSLSocketFactory(sslSocketFactory);
connection.setDoOutput(true);
connection.setConnectTimeout(15000 /* milliseconds */);
connection.setRequestMethod("POST");
connection.setRequestProperty("Charset", charset);
connection.setRequestProperty("Content-Type","application/x-www-form-urlencoded;charset=" + charset);
OutputStream output = null;
try {
output = connection.getOutputStream();
output.write(query.getBytes(charset));
} catch (IOException e) {
e.printStackTrace();
showError2("Check your network settings!");
} finally {
if (output != null)
try {
output.close();
} catch (IOException logOrIgnore) {
logOrIgnore.printStackTrace();
}
}
int status = ((HttpsURLConnection) connection).getResponseCode();
Log.d("", "Status : " + status);
for (Entry<String, List<String>> header : connection
.getHeaderFields().entrySet()) {
Log.d("Headers","Headers : " + header.getKey() + "="+ header.getValue());
}
InputStream response = new BufferedInputStream(connection.getInputStream());
int bytesRead = -1;
byte[] buffer = new byte[30 * 1024];
while ((bytesRead = response.read(buffer)) > 0) {
byte[] buffer2 = new byte[bytesRead];
System.arraycopy(buffer, 0, buffer2, 0, bytesRead);
handleDataFromSync(buffer2);
}
connection.disconnect();
} catch (IOException e) {
e.printStackTrace();
showError2("Synchronization failed!Please try again.");
} catch (KeyManagementException e) {
e.printStackTrace();
showError2("Error occured.Please try again.");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
showError2("Error occured.Please try again.");
}
}
और यहाँ मेरी AsyncTask जो मैं कनेक्ट और डेटा डाउनलोड करने के लिए उपयोग कर रहा हूँ है:
12-12 11:43:27.950: W/System.err(22010): javax.net.ssl.SSLException: Read error: ssl=0x7a6588: I/O error during system call, Connection reset by peer
12-12 11:43:27.960: W/System.err(22010): at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_read(Native Method)
12-12 11:43:27.960: W/System.err(22010): at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl$SSLInputStream.read(OpenSSLSocketImpl.java:788)
12-12 11:43:27.960: W/System.err(22010): at org.apache.harmony.luni.internal.net.www.protocol.http.ChunkedInputStream.read(ChunkedInputStream.java:50)
12-12 11:43:27.960: W/System.err(22010): at java.io.InputStream.read(InputStream.java:157)
12-12 11:43:27.960: W/System.err(22010): at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:225)
12-12 11:43:27.960: W/System.err(22010): at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:178)
12-12 11:43:27.960: W/System.err(22010): at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:174)
12-12 11:43:27.960: W/System.err(22010): at java.io.BufferedInputStream.read(BufferedInputStream.java:319)
12-12 11:43:27.970: W/System.err(22010): at java.io.FilterInputStream.read(FilterInputStream.java:133)
12-12 11:43:27.970: W/System.err(22010): at com.stampii.stampii.synchronization.Synchronization.UseHttpsConnection(Synchronization.java:1367)
12-12 11:43:27.970: W/System.err(22010): at com.stampii.stampii.synchronization.Synchronization$ActivateCollection.doInBackground(Synchronization.java:613)
12-12 11:43:27.970: W/System.err(22010): at com.stampii.stampii.synchronization.Synchronization$ActivateCollection.doInBackground(Synchronization.java:1)
12-12 11:43:27.970: W/System.err(22010): at android.os.AsyncTask$2.call(AsyncTask.java:185)
12-12 11:43:27.970: W/System.err(22010): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
12-12 11:43:27.970: W/System.err(22010): at java.util.concurrent.FutureTask.run(FutureTask.java:138)
12-12 11:43:27.970: W/System.err(22010): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
12-12 11:43:27.970: W/System.err(22010): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
12-12 11:43:27.970: W/System.err(22010): at java.lang.Thread.run(Thread.java:1027)
यह वही है मैं अपने UseHttpsConnection पद्धति पर मिल गया है: यहाँ पूरे LogCat संदेश है
public class DeactivateCollection extends AsyncTask <Context, Integer, Void> {
@Override
protected Void doInBackground(Context... arrContext) {
try {
String charset = "UTF-8";
hash = getAuthHash();
SharedPreferences lastUser = PreferenceManager
.getDefaultSharedPreferences(Synchronization.this);
int userId = lastUser.getInt("lastUser", 1);
systemDbHelper = new SystemDatabaseHelper(Synchronization.this, null, 1);
systemDbHelper.initialize(Synchronization.this);
String sql = "SELECT dbTimestamp FROM users WHERE objectId=" + userId;
Cursor cursor = systemDbHelper.executeSQLQuery(sql);
if (cursor.getCount() < 0) {
cursor.close();
} else if (cursor.getCount() > 0) {
cursor.moveToFirst();
timeStamp = cursor.getString(cursor.getColumnIndex("dbTimestamp"));
Log.d("", "timeStamp : " + timeStamp);
}
String query = String.format("debug_data=%s&"
+ "client_auth_hash=%s&" + "timestamp=%s&"
+ "deactivate_collections=%s&" + "client_api_ver=%s&"
+ "set_locale=%s&" + "device_os_type=%s&"
+ "device_sync_type=%s&"
+ "device_identification_string=%s&"
+ "device_identificator=%s&" + "device_resolution=%s",
URLEncoder.encode("1", charset),
URLEncoder.encode(hash, charset),
URLEncoder.encode(timeStamp, charset),
URLEncoder.encode(Integer.toString(deac), charset),
URLEncoder.encode(clientApiVersion, charset),
URLEncoder.encode(locale, charset),
URLEncoder.encode(version, charset),
URLEncoder.encode("14", charset),
URLEncoder.encode(version, charset),
URLEncoder.encode(deviceId, charset),
URLEncoder.encode(resolution, charset));
Log.e("","hash : "+hash);
Log.e("","deactivate : "+Integer.toString(deac));
SharedPreferences useSSLConnection = PreferenceManager.getDefaultSharedPreferences(Synchronization.this);
boolean useSSl = useSSLConnection.getBoolean("UseSSl", true);
if (useSSl) {
UseHttpsConnection(url, charset, query);
} else {
UseHttpConnection(url, charset, query);
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onProgressUpdate(Integer... progress) {
Log.d("","ON PROGRESS UPDATE");
}
@Override
protected void onCancelled() {
Log.d("","ON CANCELLED");
}
@Override
protected void onPreExecute()
{
Log.d("","ON PRE EXECUTE");
}
@Override
protected void onPostExecute(Void v) {
Log.d("","ON POST EXECUTE");
}
}
इसलिए किसी को भी यह पता है कि उस अपवाद को कैसे संभालना है ताकि मैं बिना किसी अपवाद के पूरे डेटा को डाउनलोड कर सकूं। या अगर यह असंभव है तो मैं इसे कैसे ठीक कर सकता हूं।
अग्रिम धन्यवाद!