Localhost，Eclipse，java applet和php代码； 小程序未运行

Question

Running Apache/PHP on this PC.

I am using Eclipse >> Export Java > JAR file or Runnable JAR file

I copied and pasted some code to test running Java on a web server, here is the class.

package com.dane;

import java.awt.*;

import javax.swing.JApplet;
import javax.swing.JFrame;

public class DrawingLines extends JApplet {

    public static void main(String[] args) {
        JApplet applet = new DrawingLines();
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(applet);
        f.setSize(400, 400);
        f.setLocation(200, 200);
        applet.init();
        // If you override start method
        // applet.start();
        f.setVisible(true);
    }

    private static final long serialVersionUID = 1L;
    int width, height;

    public void init() {
        width = getSize().width;
        height = getSize().height;
        setBackground(Color.black);
    }

    public void paint(Graphics g) {
        g.setColor(Color.green);
        for (int i = 0; i < 10; ++i) {
            g.drawLine(width, height, i * width / 10, 0);
        }
    }
}

I have tried exporting it both as a simple Jar and a Runnable Jar, with all sorts of combinations of settings.

The only thing I haven't tried is creating my own manifest, or rather, one that works.

Here is my php file. There are no php tags, and the result was the same even when I had php code in there:

<APPLET CODE="DrawingLines.class" WIDTH="250" HEIGHT="22" codebase="/Test/test.jar"> </APPLET>

I have also tried:

<APPLET CODE="DrawingLines.class" WIDTH="250" HEIGHT="22"> </APPLET>

The general result is this:

load: class DrawingLines.class not found.
java.lang.ClassNotFoundException: DrawingLines.class
    at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

I can run the applet within eclipse.

If it can't find the class in an external environment, I am assuming I am screwing up something during the creation of the jar. I've checked the eclipse Run Configurations for the project.

Under Java Applet, it shows a run configuration named after my class, DrawingLines.

If I try to export a runnable jar, here are the launch configurations it shows, not sure if it is important but the class one isn't there.

Any idea what is going on here?

regards,

dane

Answer 1

如果要指示一个jar文件，则需要使用archive属性而不是codebase属性。