package com.log;import java.io.IOException;import java.net.URLEncoder;import java.util.ArrayList;import java.util.Enumeration;import java.util.List;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;/** * Servlet implementation class LoginServlet */@WebServlet("/LoginServlet.do")public class LoginServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public LoginServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //首先设置响应和请求页面的编码格式: request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.setContentType("text/html charset='utf-8'"); //获取表单控件的数据 Enumeration<String> nameEnu = request.getParameterNames(); //创建list对象 List<Object> list = new ArrayList<>(); while(nameEnu.hasMoreElements()) { list.add(request.getParameter(nameEnu.nextElement())); } //把数据放在session对象 HttpSession session = request.getSession(); if(list.size()>0){ session.setAttribute("uName", list.get(0)); } //第二种方式,通过Cookie保存用户信息 Cookie cook1 = new Cookie("userName", URLEncoder.encode(list.get(0).toString(),"utf-8")); cook1.setMaxAge(3*3600); response.addCookie(cook1); // request.getRequestDispatcher("/main.jsp").forward(request, response); response.sendRedirect(request.getContextPath()+"/welcome.jsp"); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); }}接受页面:<%@page import="java.net.URLDecoder"%><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><% session.setAttribute("uName", "你好"); System.out.print(session.getId());%><% //获取cookie对象 Cookie[] getCooks = request.getCookies(); String user = null; if(getCooks.length > 0) { user = getCooks[0].getValue(); user = URLDecoder.decode(user, "utf-8"); }%><body> <%=session.getAttribute("uName") %>已进入主页! <%=user%> <button onclick="location.href='main.jsp?u1=<%=user %>'" type="button">跳转传参</button></body></html>
原标题:cookie乱码处理 示例
关键词:ie