📄 counterservlet.java
字号:
import javax.servlet.*;
import java.io.*;
import javax.servlet.http.*;
public class CounterServlet extends HttpServlet
{
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException,IOException
{
ServletContext context=getServletContext();
Integer count=(Integer)context.getAttribute("counter");
if(null==count)
{
count=new Integer(1);
}
else
{
count=new Integer(count.intValue()+1);
}
resp.setContentType("text/html;charset=gb2312");
PrintWriter out=resp.getWriter();
out.println("<html><head>");
out.println("<title>页面访问统计</title>");
out.println("</head><body>");
out.println("该页面已被访问了"+"<b>"+count+"</b>"+"次");
out.println("</body></html>");
context.setAttribute("counter",count);
out.close();
}
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