HTML5获取网站后缀数据

http://localhost:8080/?deviceID=sub
获取deviceID的值；
var deviceID="<%=request.getParameter("deviceID")%>";

`<context-param>
    <param-name>lx_api_url</param-name>
    <param-value>http://localhost:8080/</param-value>
</context-param>`

获取web.xml中lx_api_url的值；
var url="<%=application.getInitParameter("lx_api_url")%>";