关于struts2 超链接传参的问题
strut.xml 中的配置
    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
     "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
     "http://struts.apache.org/dtds/struts-2.0.dtd">
     <struts>
     <constant name="struts.i18n.encoding" value="GBK"/>
     	<package name="struts2Demo" extends="struts-default">
     		<action name="save" class="struts2.saveAction">
     			<result name="list" type="chain">list</result>
     		</action>
     		<action name="delete" class="struts2.deleteAction">
     			<result name="list" type="chain">list</result>
     		</action>
     		<action name="list" class="struts2.listAction">
     			<result name="show">/list.jsp</result>
     		</action>
     	</package>
     </struts>
------------------------------
deleteAction 类
package struts2;
import manager.managerPO;
public class deleteAction {
	managerPO manager = new managerPO();
	private Integer id;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String execute(){
		//System.out.println("id"+id);
		//manager.delete(manager.queryById(new Integer(Integer.parseInt(id))));
		//manager.delete(manager.queryById(id));
		return "list";
	}
}
---------------
查询页面
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page isELIgnored="false" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
   <head>
     <base href="<%=basePath%>">      
     <title>查询页面</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>
     <center>
     	<h2>查询页面</h2><hr>
     	<table border="1">
     		<tr>
     			<td>姓名</td>
     			<td>性别</td>
     			<td>班级</td>
     			<td>爱好</td>
     			<td>操作</td>
     		</tr>
     		<c:forEach items="${voes}" var="vo">
     			<tr>
     				<td>${vo.name }</td>
     				<td>${vo.sex}</td>
     				<td>${vo.classId}</td>
     				<td>${vo.hobby }</td>
     				<td>
     					<a href="<%=path %>/modify.action&&id=${vo.id}">修改</a>