java applet+jdk+tomcat

各位大哥大姐求救啊
jixiaoapplet.HTMl文件
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=GB18030">
    <title>绩效系统</title>
    <link rel="stylesheet" type="text/css" href="ext221/resources/css/ext-all.css" />  <!-- GC -->
     <!-- LIBS -->
     <script type="text/javascript" src="ext221/adapter/ext/ext-base.js"></script>
     <!-- ENDLIBS -->  <script type="text/javascript" src="ext221/ext-all.js"></script>  <script type="text/javascript" src="js/jixiao.js"></script>
</head>
<body></body>
</html>js里的jixiao.js文件
Ext.onReady(function(){
    var appletPanel=new Ext.Panel({
        id: 'appletPanel',
        region: 'center',
        anchor: '100% 100%',
      html: '<object id=\"jixiaoapplet\" type=\"application/x-java-applet;version=1.5\" code=\"yx c/jixiao/graphui/JiXiaoApplet.class\" codebase=\"/jx/classes\" archive=\"jixiao.jar\" width=\"400\" height=\"300\"/>'
    });
    
    appletPanel.on('resize',function(){
        var tempPanel=Ext.getCmp('appletPanel');
        var jixiao=document.getElementById("jixiaoapplet");
        jixiao.width=tempPanel.getSize().width;
        jixiao.height=tempPanel.getSize().height;
    });
    
    new Ext.Viewport({
        layout: 'border',
        items: [{
          region: 'center',
          layout: 'border',
          items: [appletPanel]
        }]
    });});
我运行jixiaoapplet.html文件时报yxc/jixiao/graphui/JiXiaoApplet.class找不到，我确定jixiao.jar包里有这个类文件，而且jdk，tomcat没有问题，tomcat可以启动起来请问为什么啊，各位帮帮忙啊，在线等