本文出自:http://blog.csdn.net/svitter
实验环境:Myeclipse10 + tomcat7
简单应用于登陆界面。jsp:forward的作用是,把当前的JSP页引导到另一个页面上,浏览器地址本显示的是当前网页的地址,内容则是另一个界面的。
1.User.html
<!DOCTYPE html> <html> <head> <title>登陆信息</title> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <!--<link rel="stylesheet" type="text/css" href="./styles.css">--> </head> <body> <form action="Login.jsp" method="post" name="Loginfrm" id="Loginform"> <table width="298" border="0" align="center" cellpadding="2" cellspacing="1"> <tr> <td align="right">用户名:</td> <td align="left"><input name="User" type="text" size="30"> </td> </tr> <tr> <td align="right">密码:</td> <td align="left"><input name="Password" type="password" size="30"> </td> </tr> <tr> <td colspan="2" align="center"><input type="submit" value="login"> <input type="reset" value="reset"></td> </table> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>用户登陆</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <% String User=request.getParameter("User"); String Password=request.getParameter("Password"); if(User.equals("Admin") && Password.equals("Admin")){%> <jsp:forward page="welcome.jsp"/> <%} else { %> <jsp:forward page="errorPage.jsp"/> <%} %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8" isErrorPage="true"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>错误处理页面</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <h1>错误信息</h1> <hr><center> <h3><%=exception%> </h3> </center> </body> </html>4.welcome.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP ‘welcome.jsp‘ starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> Welcome!<br> </body> </html>
JSP_<jsp:forward>应用,布布扣,bubuko.com
原文:http://blog.csdn.net/svitter/article/details/26009333