<%@ page language="java"
import="java.util.*,com.qdzq.iacp.entity.*,com.qdzq.zzpt.vo.*"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
//Page<zzpt_car> p = (Page<zzpt_car>) request.getAttribute("page");
List<Iacp_device> trees = (List<Iacp_device>)request.getAttribute("deviceList");
%>
<div class="pageContent">
<div class="pageFormContent" layoutH="58">
<ul class="tree expand">
<li><a href="javascript:">中国设备</a>
<ul>
<li><a href="javascript:">A组</a>
<ul>
<% for(Iacp_device device:trees){
%>
<li><a href="javascript:" onclick="$.bringBack({id:'<%=device.getDevice_code() %>', device_name:'<%=device.getDevice_name() %>'})">
<%=device.getDevice_name() %>(<%=device.getDevice_code() %>)
</a>
</li>
<%
}
%>
</ul>
</li>
<li><a href="javascript:">B组</a>
</li>
</ul>
</li>
<li><a>美国设备</a>
<ul>
<li><a href="javascript:">A组</a>
</li>
<li><a href="javascript:">B组</a>
</li>
</ul>
</li>
</ul>
</div>
<div class="formBar">
<ul>
<li><div class="button"><div class="buttonContent"><button class="close" type="button">关闭</button></div></div></li>
</ul>
</div>
</div>
找到页面,查看页面源代码,搜索jquery看看在什么地方再看是哪个页面引入了jquery,没有引用肯定是没有$的