//首先一个网站来接受信息
<%@ 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 'test.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="go.jsp" method="get">
用户名:<input type="text" name="name">
密码:<input type="password" name="pwd">
爱好:<input type="checkbox" name="hobby" value="篮球">篮球
<input type="checkbox" name="hobby" value="足球">足球
<input type="checkbox" name="hobby" value="手球">手球
<input type="submit" value="提交">
<input type="reset" 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+"/";
%>
<%
/* request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
*/
String user = request.getParameter("name");
String pwd = request.getParameter("pwd");
/* out.print(new String (user.getBytes("iso-8859-1"),"utf-8") + " " + new String (pwd.getBytes("iso-8859-1"),"utf-8"));
*/
/* out.print(user+" "+pwd);
String[] hobbys = request.getParameterValues("hobby"); */
/*
for (String hobby : hobbys) {
/* String h=new String(hobby.getBytes("iso-8859-1"),"utf-8"); */
/* out.print(hobby+ " "); */
if(user.equals("李白")&&pwd.equals("123")){
session.setAttribute("name", user);
session.setAttribute("pwd", pwd);
session.removeAttribute("name");//清除names的值
session.removeAttribute("pwd");//清除pwd的值
/* session.setMaxInactiveInterval(秒数); *///设置多少秒失效(输入验证码码时间)
response.sendRedirect("MyJsp.jsp");//重定向
}else{
/* request.setAttribute("name", user);
request.setAttribute("pwd", pwd); */
request.getRequestDispatcher("test.jsp").forward(request, response);
}
//request转发:1次请求--查---url地址不改变--服务器内部执行--可以携带参数--不可以跳转到另一个项目--
//response重定向:2次请求--增删改(成功要跳转的界面)--url地址改变--客户端执行--以?携带参数(基本上不使用)--可以跳转到另一个项目
/* } */
%>
//使用jsp来
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%if (request.getAttribute("name") != null) {
out.print((String) request.getAttribute("name")) ;
}
out.println("</br>");
if (request.getAttribute("pwd") != null) {
out.print((String) request.getParameter("pwd"));
}
%>