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public class TaskBean extends Thread{   
  
public TaskBean(){   
}   
  
private int percent=0;   
private boolean complete=false;   
  
public synchronized void run() {   
   while(true){   
    if(percent>=100){   
     complete=true;   
     return;   
    }   
    try {   
     Thread.sleep(1000);   
    } catch (Exception e) {   
     System.err.println("TaskBean.run()"+e.getMessage());   
    }   
    percent+=10;   
   }   
}   
public boolean isComplete(){   
   return complete;   
}   
public int getPercent(){   
   return percent;   
}   
}   
  
  
start.jsp   
  
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>   
<%   
String path = request.getContextPath();   
String basePath = request.getScheme() + "://"  
     + request.getServerName() + ":" + request.getServerPort()   
     + path + "/";   
%>   
<html>   
<head>   
    <base href="<%=basePath%>">   
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import java.io.IOException;   
  
import javax.servlet.Filter;   
import javax.servlet.FilterChain;   
import javax.servlet.FilterConfig;   
import javax.servlet.ServletException;   
import javax.servle ......
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