package My;import java.io.*;
import java.net.*;import javax.servlet.*;
import javax.servlet.http.*;/**
*
* @author Administrator
* @version
*/
public class Count extends HttpServlet { /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
*/
int count = 1;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=gbk");
response.setCharacterEncoding("gbk");
String num=(String)request.getAttribute("C");
if(request.getAttribute("C")!=null)
count +=1;
request.setAttribute("C",String.valueOf(count));
PrintWriter out = response.getWriter();
out.print("<html><head><title>test</title></head><body>已经被访问"+ request.getAttribute("C") +"次</body></html>");
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
import java.net.*;import javax.servlet.*;
import javax.servlet.http.*;/**
*
* @author Administrator
* @version
*/
public class Count extends HttpServlet { /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
*/
int count = 1;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=gbk");
response.setCharacterEncoding("gbk");
String num=(String)request.getAttribute("C");
if(request.getAttribute("C")!=null)
count +=1;
request.setAttribute("C",String.valueOf(count));
PrintWriter out = response.getWriter();
out.print("<html><head><title>test</title></head><body>已经被访问"+ request.getAttribute("C") +"次</body></html>");
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
session.setAttribute("C",String.valueOf(count));
他们四个都有GetAttribute,SetAttribute 方法, 看看他们之间的区别.这个问题, 你应该用 HttpSession 的Get/Set方法,即 request.GetSession() 之Get/Set方法