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  • JSP练习:编写登录程序,错误时跳转

    <%@ 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>
    <body>
    <form action="NewFile1.jsp" method="post">
    账号:<input type="text" name="name">
    
    密码:<input type="password" name="password" >
    
    <input type="submit" value="提交">
    </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>Insert title here</title>
    </head>
    <body>
    <%
    String name=request.getParameter("name");
    String password=request.getParameter("password");
    if(name.equals("aaaa")&&password.equals("12345"))
        out.print("登陆成功");
    else{
        response.sendRedirect("NewFile2.jsp");
    } %>
    </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>Insert title here</title>
    </head>
    <body>
    账号或密码错误
    <%response.setHeader("refresh","5;URL=NewFile.jsp"); %>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/wallan/p/5615872.html
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