JApplet加载问题

时间:2010-04-21 13:34:48

标签: java eclipse applet

我想将java应用程序转换为applet,但是我在浏览器中加载它时遇到问题我认为这是因为包。


package com.applet;

import java.applet.Applet;

import javax.swing.JApplet;
import javax.swing.SwingUtilities;
//import javax.swing.JOptionPane;

@SuppressWarnings("serial")
public class AppletDriver extends Applet {

    //Called when this applet is loaded into the browser.
    public void init() {
        //Execute a job on the event-dispatching thread; creating this applet's GUI.
        try {
            SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    CleanerPanel cFrame = new CleanerPanel();
                    add(cFrame); 
                }
            });
        } catch (Exception e) {
            System.err.println("createGUI didn't complete successfully");
        }
    }
}

这是我在Eclipse中运行它时用来调用applet的代码。 这是html代码:

<applet archive="app.jar" code="bin/com/applet/AppletDriver.class" width=350 height=200>
</applet>

app.jar是eclipse项目主目录中的任何建议吗?

来自浏览器java控制台的

错误:

java.lang.NoClassDefFoundError: bin/com/applet/AppletDriver (wrong name: com/applet/AppletDriver)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(Unknown Source)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.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)
Exception: java.lang.NoClassDefFoundError: bin/com/applet/AppletDriver (wrong name: com/applet/AppletDriver)

1 个答案:

答案 0 :(得分:1)

bin\属性值的开头删除code,并使用/代替\(我们不再在华盛顿)。如果jar位于名为bin的目录中,那么您将需要使用archive="bin/app.jar"

实际上在查看堆栈跟踪时,jar的构造不正确。类文件应位于com/applet目录中,而不是bin/com/applet