代码:
login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> ?
<html>
?<body>
?
?<br/>
?
?<center>
?
?<form action="check.jsp" method="post">
?<input type="text" name="userName"><br>
?<input type="password" name="password"><br>
?<input type="submit" value="提交">
?<input type="reset" value="重置"> ?
?</form>
?
?</center>
?</body>
</html>
check.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
?
?<body>
?<%
?request.setCharacterEncoding("utf-8");
?String str1 = request.getParameter("userName");
?String str2 = request.getParameter("password");
?
?if( str1.equals("aaa") && str2.equals("aaa") ){
??%>
<jsp:forward page="success.jsp"></jsp:forward>
<%
}else{
%>
<jsp:forward page="fail.jsp"></jsp:forward>
<%} %>
?</body>
</html>
success.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> ?
<html>
?<body>
?
?<center>
<% String str1 = request.getParameter("userName"); %>
<% String str2 = request.getParameter("password"); %>
<h3><%=str1 %>!!! </h3>
<h3><%=str2 %></h3>
<h1>you are welcome!</h1>
</center>
?</body>
</html>
fail.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> ?
<html>
?<body>
?<center>
?
<h1>登陆失败</h1><br>
<h1> <a href="login.jsp">请重新登陆</a> </h1>
</center>
?</body>
</html>
实现简单的网页间的跳转
原文地址：http://www.cnblogs.com/qq1206050421/p/7615762.html