ssh+ajax中出现Error. Details logged to the console

ssh或者是AJAX单独用没出错，可是两个一结合就报错了
以下是web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee  http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <servlet>
    <servlet-name>action </servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet </servlet-class>
    <init-param>
      <param-name>config </param-name>
      <param-value>/WEB-INF/struts-config.xml </param-value>
    </init-param>
    <init-param>
      <param-name>debug </param-name>
      <param-value>3 </param-value>
    </init-param>
    <init-param>
      <param-name>detail </param-name>
      <param-value>3 </param-value>
    </init-param>
    <load-on-startup>0 </load-on-startup>
  </servlet>
  <filter>
 
&nbs