Error while trying to get an HTTP POST response

Question

Hi everyone,
I'm coding a simple client to download some information from a local machine in my LAN.
I have to do this with an http post request.
When i try to parse the http response the program catch an exception, this one:
java.net.SocketException: Unexpected end of file from server
at sun.net.www.http.HttpClient.parseHTTPHeader(...)
the parameter is a JSON request, and of course the response is a JSON formatted.
i put the http request code:
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
public class HttpDownloaderThread  extends Thread{
     private String url;
        private String param;
     private HttpDownloadListener listener;
     private HttpURLConnection connection=null;
     private InputStream is;
        private OutputStreamWriter wr;
     public HttpDownloaderThread(String _url,String param, HttpDownloadListener _listener){
          url = _url;
          listener = _listener;
                this.param=param;
     public void run(){
          try{
               connection=(HttpURLConnection)new URL(url).openConnection();
                        connection.setRequestMethod("POST");
                        connection.setReadTimeout(5000);
                        connection.setRequestProperty("Content-Type", "application/jsonrequest");
                        connection.setDoOutput(true);
                        wr = new OutputStreamWriter(connection.getOutputStream());
                        wr.write(param, 0, param.length());
                        wr.flush();
                        int responseCode=0;
               System.out.println();
                        try{
                         responseCode= connection.getResponseCode();
                        }catch(Exception e){
                            e.printStackTrace();
               if (responseCode == HttpURLConnection.HTTP_OK){
                    is = connection.getInputStream();
                                 BufferedReader rd = new BufferedReader(new InputStreamReader(is));
                                String line;
                                while ((line = rd.readLine()) != null) {
                                    System.out.println(line);
                    closeHttpConnection();
                    listener.resourceDownloaded(url, null);
                            else{
                            closeHttpConnection();
                            listener.downloadFailed(url, new Exception("Http error: " + Integer.toString(responseCode)));
          }catch(Exception e){
               e.printStackTrace();
               listener.downloadFailed(url, e);
          }finally{
     public void closeHttpConnection(){
          if (is != null){
               try{
                    is.close();
                                wr.close();
               }catch (Exception e){
               }finally{
                    is = null;
                                wr=null;
          if (connection != null){
               try{
                    connection.disconnect();
               }catch (Exception e){
               }finally{
                    connection = null;
}there's someone who know's why??
Thanks to everyone :)
Thomas.

Answer 1

Hi Vincent,
according to your script,it seems like you are trying to connect to Exchange Online?
If so these as to be installed on your computer:
http://go.microsoft.com/fwlink/?LinkId=286152
http://go.microsoft.com/fwlink/p/?linkid=236297
Reboot and run this command as one line:
Set-ExecutionPolicy RemoteSigned
$LiveCred = Get-Credential
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $LiveCred -Authentication Basic -AllowRedirection
$Import = Import-Pssession $Session -AllowClobber
Import-Module MSOnline -verbose
Connect-MSOLservice -Credential $LiveCred
Hope this helped
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