the program written is working at home but not in college.
the program takes in a URL of a web-page as input.
the program is expected to retrieve the content of a web-page which is then further analysed to find the emailids present in that web-page.
the web-pages present on the local hard disk are retrieved properly but when the URL is over Internet ex:
http://google.com it is not working.
the college provides us Internet Service through a proxy server.
we are working on JDK6.0 kit and Windows XP SP2 Operating System.we are developing this application under eclipse2.0 IDE tool.
the college system has Pentium processor and 256MB RAM.
can you please help me in solving this problem?
Proxy Server settings :
method 1)
proxy server's address is 132.200.13.2
it is set using setProperty method.
proxy server's port is 80
method 2)
passing arguement to "java" command
java -Dhttp.proxyHost=132.200.13.2 -Dhttp.proxyPort=80 URLdemo
when either of the one is used the message i am getting error
the program is as follows
import java.net.*;
import java.io.*;
import javax.swing.*;
public class URLdemo {
URL url;
public static void main(String[] args) {
URLdemo ur=new URLdemo();
ur.getContent();
}
public void getContent(){
System.setProperty("http.proxyHost","132.200.13.2");
System.setProperty("http.proxyPort","80");
String sa=System.getProperty("http.proxyHost");
System.out.println(sa);
try{
url=new URL(JOptionPane.showInputDialog("Enter url"));
BufferedInputStream is=new BufferedInputStream(url.openStream());
String s="";
while( is.available() != 0 ){
s+=(char)is.read();
}
System.out.println(s);
}
catch( MalformedURLException murle){
System.out.println("URL error!");
murle.printStackTrace();
System.exit(-1);
}
catch( IOException ioe){
ioe.printStackTrace();
System.out.println("IOError!");
System.exit(-1);
}
catch( Exception e){
e.printStackTrace();
System.out.println("Error!");
System.exit(-1);
}
}
}
output along with stack trace
132.200.13.2
java.net.SocketException: Unexpected end of file from server
at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at URLdemo.getContent(URLdemo.java:29)
at URLdemo.main(URLdemo.java:17)
IOError!
