JavaWeb EL表达式的功能2：获得请求参数

 	 <%=request.getParameter("id") %>
	 <%
	    String strId=request.getParameter("id");
	 	out.println(strId);
	 %>

		 ${param.id} 
		 ${param.a}
		 ${param.love}  
		 
		 

<%
		 	//获取参数中所有的name值/key值
		 	Enumeration keys=request.getParameterNames();
		 	while(keys.hasMoreElements()){
		 		out.println(keys.nextElement());
		 	}
		 	out.println("
");
		 	//根据key值获取多个对应value值的情况
		 	String[] loves=request.getParameterValues("love");
		 	out.println(loves);//[Ljava.lang.String;@10463c3
		 	out.println(Arrays.toString(loves));  // [rd, online, football]
		    for(int i=0;i
		 
		 

 ${paramValues.love}      
 ${paramValues.love[0] }  
 ${paramValues.love[1] }  
 ${paramValues.love[2] }  

<%@page pageEncoding="utf-8"%>
<%@page import="java.util.Enumeration"%>
<%@page import="java.util.Arrays"%>

    
         
    
  
    
		
		 
		 <%=request.getParameter("id") %>
		 <%
		    String strId=request.getParameter("id");
		 	out.println(strId);
		 %>
		 
		 ${param.id} 
		 ${param.a}
		 ${param.love}  
		 
		 

		 
		 <%
		 	//获取参数中所有的name值/key值
		 	Enumeration keys=request.getParameterNames();
		 	while(keys.hasMoreElements()){
		 		out.println(keys.nextElement());
		 	}
		 	out.println("
");
		 	//根据key值获取多个对应value值的情况
		 	String[] loves=request.getParameterValues("love");
		 	out.println(loves);//[Ljava.lang.String;@10463c3
		 	out.println(Arrays.toString(loves));  // [rd, online, football]
		    for(int i=0;i
		 
		 

		 
		 ${paramValues.love}  
		 ${paramValues.love[0] }  
		 ${paramValues.love[1] }  
		 ${paramValues.love[2] }