JSP之request对象
//req.jsp
<%@ page language="java" import="java.util.*" 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 'req.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 name="reqForm" action="registe.jsp" method="post">
<table>
<tr>
<td>用户名</td>
<td><input type="text" name="username"/></td>
</tr>
<tr>
<td>爱好</td>
<td>
<input type="checkbox" name="favorite" value="read"/>读书
<input type="checkbox" name="favorite" value="run"/>跑步
<input type="checkbox" name="favorite" value="Internet"/>上网
</td>
</tr>
<tr>
<td colspan="3"><input type="submit" value="登陆"></td>
</tr>
</table>
<br/>
<br/>
<a href="registe.jsp?username=张三">注冊</a>
</form>
</body>
</html>
//registe.jsp
<%@ page language="java" import="java.util.*" 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 'registe.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");//解决中文提交后的乱码问题,但不能解决URL链接过来的中文乱码问题
request.setAttribute("password", "123456");
%>
<%=request.getParameter("username") %>
<%
if(request.getParameterValues("favorite") != null){
String[] favorites = request.getParameterValues("favorite");
for(int i=0;i<favorites.length;i++){
out.println(favorites[i]+" ");
}
}
%><br/>
<%=request.getAttribute("password") %><br/>
<%=request.getCharacterEncoding() %><br/>
请求体的MIME类型：<%=request.getContentType() %><br>
请求的协议类型及其版本：<%=request.getProtocol() %><br>
返回接受请求的server主机名：<%=request.getServerName() %><br/>
返回server接受此请求所用的端口号：<%=request.getServerPort() %><br/>
返回请求体的长度：<%=request.getContentLength() %><br/>
返回请求的clientIP：<%=request.getRemoteAddr() %><br>
返回一虚拟路径的真实路径：<%=request.getRealPath("registe.jsp") %><br/>
返回上下文路径：<%=request.getContextPath() %>
</body>
</html>
<Connector port="8888" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" URIEncoding="utf-8" />
