JSP | 基础 | 中文字符的传递

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>