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  • 制作登录界面,登录成功后把用户名放在session里,在第3个页面读取session显示用户名

    <%@ 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>登录界面</title>
    </head>
    <body>
    <form action="denglu2.jsp" method="post">
    用户名<input type="text"  name="username"/>
    <br>
    密码&nbsp&nbsp&nbsp&nbsp <input type="password" name="password"/>
    <br>
    <input type="submit" value="登录"/>
    </form>
    </body>
    </html>
                             <%@ 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>接收界面</title>
    </head>
    <body>
    <%
    String un=new String(request.getParameter("username").getBytes("ISO-8859-1"),"UTF-8");
    session.setAttribute("zhanghao",un);
    String pw=request.getParameter("password");
    session.setAttribute("mima", pw);
    %>
    
    </body>
    </html>
    <%@ 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>显示界面</title>
    </head>
    <body>
    <%
    String zh=session.getAttribute("zhanghao").toString();
    String mm=session.getAttribute("mima").toString();
    %>您的账号是:
    <%out.print(zh); %>
    <br>您的密码是:
    <%
    out.print(mm);
    %>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/jskbk/p/5621220.html
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