在某些计算机上加载小程序时出现 ClassNotFoundException [英] ClassNotFoundException when loading applet on some computers

问题描述

在某些机器上运行这个小程序不起作用，但在其他机器上运行得很好.在所有情况下看起来都已经安装了 JRE 1.6.0_26.

running this applet on some machines wont work but then on some other's it works just fine. in all cases looks like JRE 1.6.0_26 has been installed.

<script type="text/javascript" src="http://www.java.com/js/deployJava.js"></script>
<script>
var attributes = {codebase:'http://kash-dev/applet/',
        code:'Auth.class',
    archive:'Auth.jar',
    id: 'auth',
    width:0, height:0} ;
    var version = '1.6' ;
deployJava.runApplet(attributes, null, version);
</script>

错误如下:

load: class Auth.class not found.
java.lang.ClassNotFoundException: Auth.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)
Exception: java.lang.ClassNotFoundException: Auth.class

推荐答案

事实证明，Java 控制面板中的网络代理设置被设置为用户代理服务器"，尽管其地址/端口的设置与在浏览器设置"中设置的 JVM 无法正确解析 JAR 文件 URL.切换到使用浏览器设置"解决了问题.谢谢所有回复的人.

It turns out that the network proxy setting in Java control panel was set to "user proxy server" even-though the settings for it's address/port was identical to that set in the "browser settings" JVM was not able to resolve the JAR file URL correctly. Switching to "use browser setting" resolved the problem. Thank you all who responded.

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