I am getting an error
javax.net.ssl.SSLHandshakeException: Connection closed by peer
when i am trying to access a HTTPS url.
my code is:
private void executeHTTRequestVerifyingLogin(String userid, String pwd, String key) throws Exception {
String strReturn = "";
BufferedReader in = null;
HttpClient hc = CUtils.getNewHttpClient();
HttpPost hp = new HttpPost(CGlobalVariables.VERIFYING_LOGIN);
try {
hp.setEntity(new UrlEncodedFormEntity(getNameValuePairs_Login(userid, pwd, key), HTTP.UTF_8));
HttpResponse response = hc.execute(hp);
in = new BufferedReader(new InputStreamReader(response.getEntity()
.getContent()));
StringBuffer sb = new StringBuffer("");
String data = "";
while ((data = in.readLine()) != null)
sb.append(data);
in.close();
setVerifyingLoginValue(sb.toString());
} catch (Exception e) {
throw e;
}
}
My code is working upto api level 23. I don't know why this exception is thrown in Nougat(Android 7.0) only.
Related
This question already has answers here:
httpclient exception "org.apache.http.conn.ConnectionPoolTimeoutException: Timeout waiting for connection"
(10 answers)
Closed 8 years ago.
I use Multi-thread to scan the different URL in the same time in java. There was the bug,if the sum of request time exceed 100,000. I have already close which i should close. Here the code from my servlet
private String proyGetHttp(String url) throws ParseException, IOException,
InterruptedException {
String content = "";
getMethod = new HttpGet(url);
HttpResponse response = null;
HttpEntity httpEntity = null;
boolean success = false;
while (!success) {
System.out.println("url：" + url + "，connect...");
try {
response = client.execute(getMethod);
httpEntity = response.getEntity();
StringBuffer sb = new StringBuffer();
if (httpEntity != null) {
BufferedReader in = null;
InputStream instream = httpEntity.getContent();
try {
in = new BufferedReader(new InputStreamReader(instream));
String lineContent = "";
while(lineContent != null){
sb.append(lineContent);
lineContent = in.readLine();
}
} catch (Exception ex)
getMethod.abort();
throw ex;
} finally {
// Closing the input stream will trigger connection release
try { instream.close(); in.close();} catch (Exception ignore) {}
}
}
content = sb.toString();
success = true;
System.out.println("connect successfully...");
} catch (Exception e) {
e.printStackTrace();
getMethod.abort();
System.out.println("connect fail, please waitting...");
Thread.sleep(sleepTime);
}finally{
getMethod.releaseConnection();
}
}
return content;
}
Here code create the default client
PoolingClientConnectionManager cm = new PoolingClientConnectionManager();
cm.setMaxTotal(100);
DefaultHttpClient client = null;
client = new DefaultHttpClient(cm);
client.getParams().setParameter("http.protocol.cookie-policy", CookiePolicy.BROWSER_COMPATIBILITY);
client.getParams().setParameter(HttpConnectionParams.CONNECTION_TIMEOUT, 5000);
I have the same problem and I found the fix. This timeout is because of a connection leak. In my case, I'm using httpDelete method and not consuming the response. Instead, I'm checking the status of the response.
The fix is, the response entity need to be consumed. In order to ensure the proper release of system resources, one must close the content stream associated with the entity.
So I used EntityUtils.consumeQuietly(response.getEntity()); which ensures that the entity content is fully consumed and the content stream, if exists, is closed.
This is my code where the connection problem occuring.
HttpConnection is not getting a response from an connection obj in a input stream. The occuring error is:
Datagram(ConnectionBase).receive (Datagram) line 538
HttpConnection httpCon = null;
InputStream iStream = null;
String url = null;
String result = "";
public GetXmlHttp(String str)
{
url=str;
}
public String RESULT()
{
try
{
httpCon = (HttpConnection)Connector.open(url);
httpCon.setRequestMethod(HttpConnection.GET);
iStream = httpCon.openInputStream();//error is here
int httpResponse = httpCon.getResponseCode();
System.out.println("httpResponse code"+httpResponse);
System.out.println(httpResponse);
if(httpResponse != 200)
return null;
InputStreamReader in = new InputStreamReader(iStream);
StringBuffer sb=new StringBuffer();
char[] ch=new char[1020];
while(in.read(ch)!=-1)
{
sb.append(ch);
}
}
}
Posting the exception would help, but allso have a look at the API documentation for HttpConnection. There is sample code posted there for getting via an HttpConnection which has at least one significant difference from yours. getResponseCode is called before openInputStream:
void getViaHttpConnection(String url) throws IOException {
HttpConnection c = null;
InputStream is = null;
int rc;
try {
c = (HttpConnection)Connector.open(url);
// Getting the response code will open the connection,
// send the request, and read the HTTP response headers.
// The headers are stored until requested.
rc = c.getResponseCode();
if (rc != HttpConnection.HTTP_OK) {
throw new IOException("HTTP response code: " + rc);
}
is = c.openInputStream();
i am developing and app for blackberry and i need to send a Http Post Request to my server. I'm using the simulator in order to test my app and i found this code in order to send request:
http://vasudevkamath.techfiz.com/general/posting-data-via-http-from-blackberry/
But i can't get it work, because it fails in this line:
int rc = _httpConnection.getResponseCode();
Any idea?
thanks
Here is a sample code on how to send a POST request:
HttpConnection c = (HttpConnection) Connector.open(url, Connector.READ_WRITE);
c.setRequestMethod(HttpConnection.POST);
OutputStream os = c.openOutputStream();
os.write(request.getBytes("UTF-8"));
os.flush();
os.close();
InputStream is = c.openInputStream();
Just make sure you use this code in a separate thread.
public static ResponseBean sendRequestAndReceiveResponse(String method, String absoluteURL, String bodyData, boolean readResponseBody)
throws IOException
{
ResponseBean responseBean = new ResponseBean();
HttpConnection httpConnection = null;
try
{
String formattedURL = absoluteURL + "deviceside=true;interface=wifi"; // If you are using WiFi
//String formattedURL = absoluteURL + "deviceside=false"; // If you are using BES
//String formattedURL = absoluteURL + "deviceside=true"; // If you are using TCP
if(DeviceInfo.isSimulator()) // if you are using simulator
formattedURL = absoluteURL;
httpConnection = (HttpConnection) Connector.open(formattedURL);
httpConnection.setRequestMethod(method);
if (bodyData != null && bodyData.length() > 0)
{
OutputStream os = httpConnection.openOutputStream();
os.write(bodyData.getBytes("UTF-8"));
}
int responseCode = httpConnection.getResponseCode();
responseBean.setResponseCode(responseCode);
if (readResponseBody)
{
responseBean.setBodyData(readBodyData(httpConnection));
}
}
catch (IOException ex)
{
System.out.println("!!!!!!!!!!!!!!! IOException in NetworkUtil::sendRequestAndReceiveResponse(): " + ex);
throw ex;
}
catch(Exception ex)
{
System.out.println("!!!!!!!!!!!!!!! Exception in NetworkUtil::sendRequestAndReceiveResponse(): " + ex);
throw new IOException(ex.toString());
}
finally
{
if (httpConnection != null)
httpConnection.close();
}
return responseBean;
}
public static StringBuffer readBodyData(HttpConnection httpConnection) throws UnsupportedEncodingException, IOException
{
if(httpConnection == null)
return null;
StringBuffer bodyData = new StringBuffer(256);
InputStream inputStream = httpConnection.openDataInputStream();
byte[] data = new byte[256];
int len = 0;
int size = 0;
while ( -1 != (len = inputStream.read(data)) )
{
bodyData.append(new String(data, 0, len,"UTF-8"));
size += len;
}
if (inputStream != null)
{
inputStream.close();
}
return bodyData;
}
I know this question is pretty old and OP probably solved it by now, but I've just run into the same problem and managed to fix it!
You need to append ;deviceside=true to your URL.
So for example, your URL will change from "http://example.com/directory/submitpost.php" to "http://example.com/directory/submitpost.php;deviceside=true".
I found this here: http://supportforums.blackberry.com/t5/Java-Development/Different-ways-to-make-an-HTTP-or-socket-connection/ta-p/445879
My POST request was timing out after 3 minutes when I did not have this (See My Comment), but it works fine with this appended to the url.
I would also recommend using ConnectionFactory. Here's some of my code:
Network.httpPost("http://example.com/directory/submitpost.php;deviceside=true", paramNamesArray, paramValsArray)
public static void httpPost(String urlStr, String[] paramName, String[] paramVal) throws Exception {
ConnectionFactory conFactory = new ConnectionFactory();
conFactory.setTimeLimit(1000);
HttpConnection conn = (HttpConnection) conFactory.getConnection(urlStr).getConnection();
conn.setRequestMethod(HttpConnection.POST);
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
StringBuffer sb = new StringBuffer();
for (int i = 0; i < paramName.length; i++) {
sb.append(paramName[i]);
sb.append("=");
sb.append(paramVal[i]);
sb.append("&");
}
byte[] postData = sb.toString().getBytes("UTF-8");
conn.setRequestProperty("Content-Length",new Integer(postData.length).toString());
OutputStream out = conn.openOutputStream();
out.write(postData);
//out.flush(); //Throws an Exception for some reason/Doesn't do anything anyways
out.close();
//This writes to our connection and waits for a response
if (conn.getResponseCode() != 200) {
throw new Exception(conn.getResponseMessage());
}
}
Not sure about the site you posted, but I've successfully used the sample ConnectionFactory code provided on the blackberry site.
http://supportforums.blackberry.com/t5/Java-Development/Sample-Code-Using-the-ConnectionFactory-class-in-a-BrowserField/ta-p/532860
Just make sure not to invoke the connection on the EventThread.
That's how you add parameters, Full answer is here:
StringBuffer postData = new StringBuffer();
httpConn = (HttpConnection) Connector.open("https://surveys2.kenexa.com/feedbacksurveyapi/login?");
httpConn.setRequestMethod(HttpConnection.POST);
postData.append("username="+username);
postData.append("&password="+pass);
postData.append("&projectcode="+projectid);
String encodedData = postData.toString();
httpConn.setRequestProperty("Content-Language", "en-US");
httpConn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
httpConn.setRequestProperty("Content-Length",(new Integer(encodedData.length())).toString());
byte[] postDataByte = postData.toString().getBytes("UTF-8");
OutputStream out = httpConn.openOutputStream();
out.write(postDataByte);
out.close();
httpConn.getResponseCode();
i am new to black berry.i am doing one task,i have one webservice to show some url.i need to retrive it and connect to that url.i tried with two threads one is to retrive url and other is to connect to url which is in webservice but it shows nullpointer exception.please help me.
Thank You.
since you have not posted any code, it's very difficult to diagnose the problem. But look at the following code which tries to open an absolute url. This can be helpful.
Use this method for both of your connection (Web Service and URL returned from Web Service). Be sure to call this method in a separate thread otherwise it will freeze the UI.
public static ResponseBean sendRequestAndReceiveResponse(
String method, String absoluteURL, String bodyData, boolean readResponseBody)
throws IOException
{
ResponseBean responseBean = new ResponseBean();
HttpConnection httpConnection = null;
try
{
String formattedURL = absoluteURL + "deviceside=true;interface=wifi"; // If you are using WiFi
//String formattedURL = absoluteURL + "deviceside=false"; // If you are using BES
//String formattedURL = absoluteURL + "deviceside=true"; // If you are using TCP
if(DeviceInfo.isSimulator()) // if simulator is running
formattedURL = absoluteURL;
httpConnection = (HttpConnection) Connector.open(formattedURL);
httpConnection.setRequestMethod(method);
if (bodyData != null && bodyData.length() > 0)
{
OutputStream os = httpConnection.openOutputStream();
os.write(bodyData.getBytes("UTF-8"));
}
int responseCode = httpConnection.getResponseCode();
responseBean.setResponseCode(responseCode);
if (readResponseBody)
{
responseBean.setBodyData(readBodyData(httpConnection));
}
}
catch (IOException ex)
{
System.out.println("!!!!!!!!!!!!!!! IOException in NetworkUtil::sendRequestAndReceiveResponse(): " + ex);
throw ex;
}
catch(Exception ex)
{
System.out.println("!!!!!!!!!!!!!!! Exception in NetworkUtil::sendRequestAndReceiveResponse(): " + ex);
throw new IOException(ex.toString());
}
finally
{
if (httpConnection != null)
httpConnection.close();
}
return responseBean;
}
public static StringBuffer readBodyData(HttpConnection httpConnection) throws UnsupportedEncodingException, IOException
{
if(httpConnection == null)
return null;
StringBuffer bodyData = new StringBuffer(256);
InputStream inputStream = httpConnection.openDataInputStream();
byte[] data = new byte[256];
int len = 0;
int size = 0;
while ( -1 != (len = inputStream.read(data)) )
{
bodyData.append(new String(data, 0, len,"UTF-8"));
size += len;
}
if (inputStream != null)
{
inputStream.close();
}
return bodyData;
}
i am developing and app for blackberry and i need to send a Http Post Request to my server. I'm using the simulator in order to test my app and i found this code in order to send request:
http://vasudevkamath.techfiz.com/general/posting-data-via-http-from-blackberry/
But i can't get it work, because it fails in this line:
int rc = _httpConnection.getResponseCode();
Any idea?
thanks
Here is a sample code on how to send a POST request:
HttpConnection c = (HttpConnection) Connector.open(url, Connector.READ_WRITE);
c.setRequestMethod(HttpConnection.POST);
OutputStream os = c.openOutputStream();
os.write(request.getBytes("UTF-8"));
os.flush();
os.close();
InputStream is = c.openInputStream();
Just make sure you use this code in a separate thread.
public static ResponseBean sendRequestAndReceiveResponse(String method, String absoluteURL, String bodyData, boolean readResponseBody)
throws IOException
{
ResponseBean responseBean = new ResponseBean();
HttpConnection httpConnection = null;
try
{
String formattedURL = absoluteURL + "deviceside=true;interface=wifi"; // If you are using WiFi
//String formattedURL = absoluteURL + "deviceside=false"; // If you are using BES
//String formattedURL = absoluteURL + "deviceside=true"; // If you are using TCP
if(DeviceInfo.isSimulator()) // if you are using simulator
formattedURL = absoluteURL;
httpConnection = (HttpConnection) Connector.open(formattedURL);
httpConnection.setRequestMethod(method);
if (bodyData != null && bodyData.length() > 0)
{
OutputStream os = httpConnection.openOutputStream();
os.write(bodyData.getBytes("UTF-8"));
}
int responseCode = httpConnection.getResponseCode();
responseBean.setResponseCode(responseCode);
if (readResponseBody)
{
responseBean.setBodyData(readBodyData(httpConnection));
}
}
catch (IOException ex)
{
System.out.println("!!!!!!!!!!!!!!! IOException in NetworkUtil::sendRequestAndReceiveResponse(): " + ex);
throw ex;
}
catch(Exception ex)
{
System.out.println("!!!!!!!!!!!!!!! Exception in NetworkUtil::sendRequestAndReceiveResponse(): " + ex);
throw new IOException(ex.toString());
}
finally
{
if (httpConnection != null)
httpConnection.close();
}
return responseBean;
}
public static StringBuffer readBodyData(HttpConnection httpConnection) throws UnsupportedEncodingException, IOException
{
if(httpConnection == null)
return null;
StringBuffer bodyData = new StringBuffer(256);
InputStream inputStream = httpConnection.openDataInputStream();
byte[] data = new byte[256];
int len = 0;
int size = 0;
while ( -1 != (len = inputStream.read(data)) )
{
bodyData.append(new String(data, 0, len,"UTF-8"));
size += len;
}
if (inputStream != null)
{
inputStream.close();
}
return bodyData;
}
I know this question is pretty old and OP probably solved it by now, but I've just run into the same problem and managed to fix it!
You need to append ;deviceside=true to your URL.
So for example, your URL will change from "http://example.com/directory/submitpost.php" to "http://example.com/directory/submitpost.php;deviceside=true".
I found this here: http://supportforums.blackberry.com/t5/Java-Development/Different-ways-to-make-an-HTTP-or-socket-connection/ta-p/445879
My POST request was timing out after 3 minutes when I did not have this (See My Comment), but it works fine with this appended to the url.
I would also recommend using ConnectionFactory. Here's some of my code:
Network.httpPost("http://example.com/directory/submitpost.php;deviceside=true", paramNamesArray, paramValsArray)
public static void httpPost(String urlStr, String[] paramName, String[] paramVal) throws Exception {
ConnectionFactory conFactory = new ConnectionFactory();
conFactory.setTimeLimit(1000);
HttpConnection conn = (HttpConnection) conFactory.getConnection(urlStr).getConnection();
conn.setRequestMethod(HttpConnection.POST);
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
StringBuffer sb = new StringBuffer();
for (int i = 0; i < paramName.length; i++) {
sb.append(paramName[i]);
sb.append("=");
sb.append(paramVal[i]);
sb.append("&");
}
byte[] postData = sb.toString().getBytes("UTF-8");
conn.setRequestProperty("Content-Length",new Integer(postData.length).toString());
OutputStream out = conn.openOutputStream();
out.write(postData);
//out.flush(); //Throws an Exception for some reason/Doesn't do anything anyways
out.close();
//This writes to our connection and waits for a response
if (conn.getResponseCode() != 200) {
throw new Exception(conn.getResponseMessage());
}
}
Not sure about the site you posted, but I've successfully used the sample ConnectionFactory code provided on the blackberry site.
http://supportforums.blackberry.com/t5/Java-Development/Sample-Code-Using-the-ConnectionFactory-class-in-a-BrowserField/ta-p/532860
Just make sure not to invoke the connection on the EventThread.
That's how you add parameters, Full answer is here:
StringBuffer postData = new StringBuffer();
httpConn = (HttpConnection) Connector.open("https://surveys2.kenexa.com/feedbacksurveyapi/login?");
httpConn.setRequestMethod(HttpConnection.POST);
postData.append("username="+username);
postData.append("&password="+pass);
postData.append("&projectcode="+projectid);
String encodedData = postData.toString();
httpConn.setRequestProperty("Content-Language", "en-US");
httpConn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
httpConn.setRequestProperty("Content-Length",(new Integer(encodedData.length())).toString());
byte[] postDataByte = postData.toString().getBytes("UTF-8");
OutputStream out = httpConn.openOutputStream();
out.write(postDataByte);
out.close();
httpConn.getResponseCode();