testurlconnection.java

有大量的java的实例

import java.net.*;
import java.io.*;
public class TestURLConnection
{
    public static void main(String args[])
    {
    String s ;
    try
        {
	    URL MyURL = new URL("http://ym/cgi/java?answer.class");
	    URLConnection MyURLConnection = MyURL.openConnection();
	    PrintStream ps = new PrintStream(MyURLConnection.getOutputStream());
	    BufferedReader dis = new BufferedReader(
		new InputStreamReader(MyURLConnection.getInputStream()));
	    ps.println("Hello! This is a test.");
	    ps.close();
	    while( (s = dis.readLine()) != null )
	    {
		    System.out.println(s);
	    }
	    dis.close();
        }
	catch(MalformedURLException e)
	{  System.out.println("URL in wrong form, check it again.");
	}
	catch(IOException e)
	{  System.out.println("IO Exception ocurred when get information.");	
        }
    }
}