JSP之request对象
Posted llguanli
tags:
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//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" />以上是关于JSP之request对象的主要内容，如果未能解决你的问题，请参考以下文章