?? handlerservlet.java
字號:
package org.sunxin.lesson.jsp.ch24;
import javax.servlet.*;
import java.io.*;
import javax.servlet.http.*;
import java.util.*;
import org.sunxin.lesson.jsp.util.TokenProcessor;
public class HandlerServlet extends HttpServlet
{
int count=0;
public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException,IOException
{
resp.setContentType("text/html;charset=GBK");
PrintWriter out=resp.getWriter();
TokenProcessor processor=TokenProcessor.getInstance();
if(processor.isTokenValid(req))
{
try
{
Thread.sleep(5000);
}
catch(InterruptedException e)
{
System.out.println(e);
}
System.out.println("submit : "+count);
if(count%2==1)
count=0;
else
count++;
out.println("success");
}
else
{
processor.saveToken(req);
out.println("你已經提交了表單,同一表單不能提交兩次。");
}
out.close();
}
}
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