编写一个JSP程序实现用户登录
<%@ 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="zhuye.jsp" method="post" > 登录：<input type="text" name="name"> <br> 密码：<input type="password" name="password" > <br> <input type="submit" value="提交"> </form> </body> </html>
<%@page import="javax.tools.ForwardingFileObject"%> <%@ 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="wencai"; String password="123"; if(!name.equals(request.getParameter("name"))||!password.equals(request.getParameter("password"))) { %> <meta http-equiv="Refresh" content="0;url=errorpage.jsp"> <% } else { out.println("提交成功"); } %> </body> </html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page isErrorPage="false"%> <!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>cuowu</title> </head> <body> 对不起，输入出错！ <meta http-equiv="refresh" content="30;url=denglu.jsp"> </body> </html>
