一个tomcat下跨应用获取application和session属性值

跨应用获取application和session属性值

online应用

application.setAttribute("online_uname_str",getOnlineUserNameString(useronline));

session.setAttribute("online");

test应用

ServletContext ac=application.getContext("/online");  
String userStr=String.valueOf(ac.getAttribute("onlineuser"));

ServletContext onlineContex=this.getServletConfig().getServletContext().getContext("/online");
   if(onlineContex==null){
    out.print("onlineContex=null");
    return;
  }
  HttpSession onlineSession=(HttpSession)onlineContex.getAttribute("online");
   if(onlineSession.getAttribute("hello")!=null){
     out.print(onlineSession.getAttribute("hello"));    
 } 

 另外注意online的数据源配置Context里需加上 crossContext="true"属性