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GetURLInfo.javaAPI DocExample1977Sat Jun 02 02:41:32 BST 2001None

GetURLInfo

public class GetURLInfo extends Object
A class that displays information about a URL.

Fields Summary
Constructors Summary
Methods Summary
public static voidmain(java.lang.String[] args)
Create a URL object, call printinfo() to display information about it.

    try { printinfo(new URL(args[0])); }
    catch (Exception e) {
      System.err.println(e);
      System.err.println("Usage: java GetURLInfo <url>");
    }
public static voidprintinfo(java.net.URL url)
Use the URLConnection class to get info about the URL

    URLConnection c = url.openConnection();  // Get URLConnection from the URL
    c.connect();                             // Open a connection to the URL

    // Display some information about the URL contents
    System.out.println("  Content Type: " + c.getContentType());
    System.out.println("  Content Encoding: " + c.getContentEncoding());
    System.out.println("  Content Length: " + c.getContentLength());
    System.out.println("  Date: " + new Date(c.getDate()));
    System.out.println("  Last Modified: " + new Date(c.getLastModified()));
    System.out.println("  Expiration: " + new Date(c.getExpiration()));

    // If it is an HTTP connection, display some additional information.
    if (c instanceof HttpURLConnection) {
      HttpURLConnection h = (HttpURLConnection) c;
      System.out.println("  Request Method: " + h.getRequestMethod());
      System.out.println("  Response Message: " + h.getResponseMessage());
      System.out.println("  Response Code: " + h.getResponseCode());
    }