java文件整理(四)--jar文件操作

 

package com.tw.jarfile;
import java.io.IOException;
import java.net.JarURLConnection;
import java.net.URL;
import java.util.Enumeration;
import java.util.Map;
import java.util.Map.Entry;
import java.util.jar.Attributes;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.jar.Manifest;

/**
 * <p>jar文件操作</p>��jar���л�������ļ�
 * @author tw 2010-05-09
 *
 */
public class Fuk {
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        try {
            JarFile j = new JarFile("E:/prj_wangwin/prj_admin_bak/alliance/WEB-INF/lib/axis.jar");
            Enumeration<JarEntry> entries = j.entries();
            while (entries.hasMoreElements()) {
                JarEntry je = entries.nextElement();
                System.out.println(je.getName());
            }
            System.out.println();
            Manifest manifest = j.getManifest();
            Attributes mainAttributes = manifest.getMainAttributes();
            for (Entry<Object, Object> e : mainAttributes.entrySet()) {
                System.out.println(e.getKey() + ":" + e.getValue());
            }
            System.out.println();
            System.out.println();
            System.out.println();
            Map<String, Attributes> entries2 = manifest.getEntries();
            for (Entry<String, Attributes> e : entries2.entrySet()) {
                System.out.println(e.getKey() + ":" + e.getValue());
            }

            System.out.println();
            URL url = new URL("jar:file:/E:/prj_wangwin/prj_admin_bak/alliance/WEB-INF/lib/axis.jar!/");
            JarURLConnection jarConnection = (JarURLConnection) url
                    .openConnection();
            Manifest m = jarConnection.getManifest();
            Attributes aaa = m.getMainAttributes();
            for (Entry<Object, Object> e : aaa.entrySet()) {
                System.out.println(e.getKey() + ":" + e.getValue());
            }

            System.out.println();
            System.out.println();
            System.out.println();

        } catch (IOException e) {
            e.printStackTrace();
        }

    }


}