package com.fxe.cookie.web;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class ShowCookie extends HttpServlet {
/**
* Constructor of the object.
*/
public ShowCookie() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
Cookie[] cookies=request.getCookies();
boolean flag=false;
if(cookies!=null)
{
String userName="";
String password="";
int count=0;
for(int i=0;i<cookies.length;i++)
{
Cookie cookie=cookies[i];
if("userName".equals(cookie.getName()))
{
userName=cookie.getValue();
}
if("password".equals(cookie.getName()))
{
password=cookie.getValue();
}
if("fxeCount".equals(cookie.getName()))
{
count=Integer.parseInt(cookie.getValue())+1;
cookie.setValue(count+"");
cookie.setMaxAge(60*60*24);
response.addCookie(cookie);
out.println("你是第" + count + "次登录该网页。");
}
}
if("fxe".equals(userName)&&"fxe".equals(password))
{
flag=true;
}
}
if(flag)
{
response.sendRedirect("/cookiePro/success.jsp");
}
else
{
response.sendRedirect("/cookiePro/index.jsp");
}
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
cookie的使用,实用的demo
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2008-11-14
20:25:16
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cookie使用.rar （11个子文件） 
cookiePro 
.project 1KB .mymetadata 300B WebRoot success.jsp 823B WEB-INF web.xml 1KB lib classes com fxe cookie web ShowCookie.class 3KB LoginServlet.class 2KB index.jsp 2KB META-INF MANIFEST.MF 39B .myeclipse src com fxe cookie web LoginServlet.java 3KB ShowCookie.java 3KB .classpath 340B
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