jsp继续学习(request对象)

action处理页面的名字,method提交的方式

request.getParameter可以获得text类型的提交内容,后面跟text类型的name

request.getParameterValues可以获得checkbox类型的选型的value,后面跟checkbox类型的name


这是Index页面

<%@ 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>
    <title>My JSP 'index.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>
     <h1> 测试request对象</h1><br>
     <%--action处理的页面的名字,method提交方式 --%>
     <form name="reForm" action="request.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="favourite" value="read">读书
     <input type="checkbox" name="favourite" value="music">音乐
     <input type="checkbox" name="favourite" value="movie">电影
     <input type="checkbox" name="favourite" value="internet">上网
     </td>
     </tr>
     <tr>
     <td colspan="2">
     <input type="submit" value="提交">
     </td>
     </table>
     </form>
  </body>
</html>
这是request.jsp

<%@ page language="java" import="java.util.*" contentType="text/html;charset=utf-8"%>
<%@ page  import="java.text.*"%>
<%
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>问答系统</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"); //解决中文乱码问题%>
  
     用户名:<%= request.getParameter("username") %><br>
     爱好:  <% 
     String[] favorites=request.getParameterValues("favourite");
     for (int i=0;i<favorites.length;i++)
     {
     out.println(favorites[i]+"  ");
     }
     %>
  </body>
</html>



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