S2 使用JSP/Servlet技术开发新闻发布系统 第三章JSP交互(二)作业

<%@ page language="java" import="java.util.*,java.text.*" contentType="text/html;charset=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 'sj1_count.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>
     <%
       Integer i=(Integer)application.getAttribute("count");
       out.print("您好!目前有"+i+"人访问该页面");
     %>
  </body>
</html>

<%@ page language="java" import="java.util.*,java.text.*" contentType="text/html;charset=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 'sj1_login.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>
    <%
       Integer count=(Integer)application.getAttribute("count");
       if(count!=null){
          count=count+1;
       }else{
         count=1;
       }
       application.setAttribute("count", count);
       response.sendRedirect("sj1_count.jsp");
     %>
  </body>
</html>

<%@ page language="java" import="java.util.*,java.text.*" contentType="text/html;charset=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 'sj2_info.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>
    
    欢迎<%=application.getAttribute("name1") %>进入本网页!
  </body>
</html>

<%@ page language="java" import="java.util.*,java.text.*" contentType="text/html;charset=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 'sj2_login.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>
  <form action="sj2_susses.jsp" method="post" name="myform">
  用户名:<input  name="name"   type="text"></br>
              密码:<input  name="pwd" type="password"  ></br>
          <input name="deng" type="submit" value="登录"  >
  </form>
   
</html>

<%@ page language="java" import="java.util.*,java.text.*"
	contentType="text/html;charset=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 'sj2_susses.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>
	<%
		request.setCharacterEncoding("UTF-8");
		String name = request.getParameter("name");
		String pwd = request.getParameter("pwd");

		Cookie[] cookie = request.getCookies();
		if (name.equals("admin") && pwd.equals("123")) {
			Cookie cn = new Cookie("cn", name);
			Cookie cp = new Cookie("cp", pwd);
			cn.setMaxAge(10);
			response.addCookie(cn);
			response.addCookie(cp);
			application.setAttribute("name1", name);
			response.sendRedirect("sj2_info.jsp");
		} else {
			boolean sign = false;
			if (cookie != null) {
				for (int i = 0; i < cookie.length; i++) {
					if (cookie[i].getValue().equals("cn")) {
						sign = true;
						response.sendRedirect("sj2_info.jsp");
					}
				}
				if (!sign) {
					out.print("超过时间!");
				}
			}
		}
	%>
</body>
</html>

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