<%@ 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 'index.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">
-->
<style type="text/css">
body{font-size:16px;}
</style>
<script type="text/javascript">
function mycheck(){
if(form1.userName.value==""){
alert("用户名不能为空，请输入用户名");
form1.userName.focuse();
return;
}
if(form1.password.value==""){
alert("密码不能为空，请输入密码");
form1.password.focus();
return;
}
if(form1.validationCode.value==""){
alert("验证码不能为空，请输入验证码");
form1.validationCode.focus();
return;
}
if(form1.validationCode.value!=form1.validationCode1.value){
alert("请输入正确的验证码");
form1.validationCode.focus();
return;
}
form1.submit1();
}
</script>
</head>
<body bgcolor="pink">
<form action="loginCheck.jsp" name="form1" method="post">
用户名：<input type="text" name="userName" size="24"><br>
密 码：<input type="password" name="password" size="24"><br>
验证码：<input type="text" name="validationCode" onKeyDown="if(event.keyCode==13){form1.submit.focus();}"size="4">
<%
int intmethod1=(int)((((Math.random())*5))+1);
int intmethod2=(int)((((Math.random())*5))+1);
int intmethod3=(int)((((Math.random())*5))+1);
int intmethod4=(int)((((Math.random())*5))+1);
String intsum=intmethod1+""+intmethod2+intmethod3+intmethod4;
%>
<input type="hidden" name="validationCode1" value="<%=intsum%>">
<img style="height:20px;weight:20px" src="<%=intmethod1 %>.png">
<img style="height:20px;weight:20px" src="<%=intmethod2 %>.png">
<img style="height:20px;weight:20px" src="<%=intmethod3 %>.png">
<img style="height:20px;weight:20px" src="<%=intmethod4 %>.png">
<br>
<br>
<input type="submit" name="submit1" value="登录" onClick="mycheck()">
<input type="reset" value="重置">
</form>
<br>
</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>My JSP 'index.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 bgcolor="pink">
<%
request.setCharacterEncoding("utf-8");
String name=request.getParameter("userName");
String password=request.getParameter("password");
if(request.getParameter("validationCode1").equals(request.getParameter("validationCode"))){
if(name.equals("tianyihui")&&(password.equals("123456"))){
session.setAttribute("userName", name);
response.sendRedirect("main.jsp");
}else{
response.sendRedirect("login.jsp");
}
}else{
response.sendRedirect("login.jsp");
}
%>
<br>
</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>My JSP 'index.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 bgcolor="pink">
<%
String name=(String)session.getAttribute("userName");
%>
您好<%=name %>,欢迎您访问<br>
<a href="exit.jsp">【退出系统】</a>
<br>
</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>My JSP 'index.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>
<%
session.invalidate();
response.sendRedirect("login.jsp");
%>
<br>
</body>
<html>
