jsp5

@ 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 heretitle>
        style type="text/css">
            body{
                background-color: azure;
            }
            form{
                position: fixed;
                top: 250px;
                left: 650px;
                background-color: #ADD8E6;
                border-radius: 5px;
            }
            div{
                font-size: 22px;
                margin-top: 20px;
                padding-left: 40px;
            }
            input{
                width: 200px;
                height: 20px;
                border-radius: 5px;
            }
            #tj{
                width: 80px;
                height: 30px;
        
                margin-left: 140px;
                    border-radius: 5px;
                    font-size: 16px;
                    margin-bottom: 20px;
            }
        style>
        
head>
body>
    form action="/school/Login.jsp" method="post">
                div>账 号:    input type="text" name="username">div>
                div>密 码:    input type="text" name="password">div>
                div>验 证 码:input type="text" name = "yanzhengma"> img   src="getcode" alt="看不清，换一张" onclick="change(this)"/>div>
                div>input type="submit" id="tj" value="登录" >div>
            form>

body>
script type="text/javascript">
    function  change(img) {
        img.src = "getcode?"+new Date().getTime();
        
    }
script>
html>

@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"
    import=" javax.servlet.http.HttpSession"
    %>
DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=utf-8");
response.setCharacterEncoding("UTF-8");
 HttpSession s = request.getSession();

 String username = request.getParameter("username");
 String password = request.getParameter("password");
 session.setAttribute("username", username);
 session.setAttribute("password", password);
 response.sendRedirect("/school/success.jsp");
 
%>
html>
head>
meta http-equiv="Content-Type" content="text/html; charset=utf-8">
title>Insert title heretitle>
head>
body>

body>
html>

@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"
    import=" javax.servlet.http.HttpSession"
    %>
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 heretitle>
head>
body>

HttpSession s = request.getSession();
String username = s.getAttribute("username").toString();
String password = s.getAttribute("password").toString();

%>
    用户名 ： =username %>br/>
    密码  ： =password %>
body>
html>