Java API Tutorial - Java JarURLConnection .getMainAttributes ()








Syntax

JarURLConnection.getMainAttributes() has the following syntax.

public Attributes getMainAttributes()    throws IOException

Example

In the following code shows how to use JarURLConnection.getMainAttributes() method.

import java.net.JarURLConnection;
import java.net.URL;
import java.util.jar.Attributes;
//from w ww. j a  v a2  s.  c om
public class Main {
  public static void main(String[] argv) throws Exception {
    URL url = new URL("jar:file:/c://my.jar!/");
    JarURLConnection conn = (JarURLConnection) url.openConnection();

    Attributes attrs = conn.getMainAttributes();
    System.out.println(attrs.isEmpty());
  }
}