<%@ 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>
<title>登录界面</title>
<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.focus();
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="loginCkeck.jsp" name="form1" method="post">
用户名:<input type="text" name="userName" size="16">
<br>密 码:
<input type="password" name="password" size="18">
<br>
验证码:<input type="text" name="validationgCode"
onKeyDown="if(event.keyCode==13){form1.submit.focus();}" size="6">
<%
int intmethod1=(int) ((((Math.random())*11))-1) ;
int intmethod2=(int) ((((Math.random())*11))-1) ;
int intmethod3=(int) ((((Math.random())*11))-1) ;
int intmethod4=(int) ((((Math.random())*11))-1) ;
String intsum=intmethod1+""+intmethod2+intmethod3+intmethod4;
%>
<!-- 设置隐藏域，验证比较时使用 -->
<input type="hidden" name="validationCode1" value="<%=intsum %>">
<img src="../image/<%=intmethod1%>.gif">
<img src="../image/<%=intmethod2%>.gif">
<img src="../image/<%=intmethod3%>.gif">
<img src="../image/<%=intmethod4%>.gif">
<br>
<input type="submit" name="submit1" value="登录" onClick="mycheck()">
<input type="rest" value="重置">
</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>
<title>处理登录页面的数据</title>
</head>
<body bgcolor="pink">
<%
request.setCharacterEncoding("UTF-8");
String name=request.getParameter("userName");
String password=request.getParameter("password");
if(request.getParameter("validationCode1").equals(request.getParater("validationCode")))
{
if(name.equals("pdy")&&(password.equals("666666"))){
session.setAttribute("userName",name);
response.sendRedirect(main.jsp);
}else{
response.sendRedirect("login.jsp");
}
}else{
response.sendRedirect("login.jsp");
}
%>
</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>
<title>系统主页面</title>
</head>
<body bgcolor="pink">
<%
String name=(String)session.getAttribute("userName");
%>
您好<%=name %>,欢迎您访问!<br>
<a herf="exit.jsp">[退出系统]</a>
</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>
<title>退出系统</title>
</head>
<body >
<%
session.invalidate();
response.sendRedirect("login.jsp");
%>
</body>
</html>
