DWR出现session error解决方法

今天在使用dwr的时候遇到了session error 错误。解决方法是在web.xml 中添加如下配置

<servlet>
   <servlet-name>dwr-invoker</servlet-name>
   <servlet-class>
    org.directwebremoting.servlet.DwrServlet
   </servlet-class>
   <init-param>
    <param-name>debug</param-name>
    <param-value>false</param-value>
   </init-param>
   <init-param>
    <param-name>logLevel</param-name>
    <param-value>warn</param-value>
   </init-param>
   <init-param>
    <param-name>crossDomainSessionSecurity</param-name>
    <param-value>false</param-value>
   </init-param
   <load-on-startup>1</load-on-startup>
</servlet>