设置传递格式：
request.setCharacterEncoding("utf-8");
中文字符解码：
import java.net.URLDecoder; String format = URLDecoder.decode(request.getParameter("format"), "utf-8");
中文字符加码：
import java.net.URLEncoder; String username = URLEncoder.encode(request.getParameter("username"), "UTF-8");
实例：
登陆后创建session：
<%@page import="java.net.*"%> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% request.setCharacterEncoding("UTF-8"); String username = URLEncoder.encode(request.getParameter("username"), "UTF-8"); String password =URLEncoder.encode(request.getParameter("password"),"UTF-8") ; Cookie usernameCookie = new Cookie("username",username); Cookie passwordCookie = new Cookie("password",password); response.addCookie(usernameCookie); response.addCookie(passwordCookie); request.getRequestDispatcher("login_success.jsp").forward(request, response); %> </body> </html>
表单提交包含中文字符显示：
<%@page import="java.net.URLDecoder"%> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% request.setCharacterEncoding("UTF-8"); Cookie[] cookies = request.getCookies(); String username = ""; String password = ""; for(Cookie cookie : cookies) { if("username".equals(cookie.getName())) username =URLDecoder.decode(cookie.getValue(),"utf-8") ; if("password".equals(cookie.getName())) password = cookie.getValue(); } %> <h1 align="center">恭喜<%=username %>登录成功</h1> <hr> <div style="border: solid 1px;"> <p> 用户名：<%=username %> </p> <p> 密码： <%=password %> </p> </div> </body> </html>