项目中使用dwr，发布到到线上时报错，使用外网测试也报错，报错如下

发布到线上时，页面包如下错误

使用外网时，页面报如下错误

我的web.xml中有关dwr的配置

<listener>
        <listener-class>org.directwebremoting.servlet.DwrListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dwr-invoker</servlet-name>
        <display-name>DWR Servlet</display-name>
        <description>Direct Web Remoter Servlet</description>
        <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
        <init-param>
            <param-name>fileUploadMaxBytes</param-name>
            <param-value>1024000</param-value>
        </init-param>
        <init-param>
            <param-name>debug</param-name>
            <param-value>false</param-value>
        </init-param>
        <init-param>
            <param-name>accessLogLevel</param-name>
            <param-value>runtimeexception</param-value>
        </init-param>
        <init-param>
            <param-name>activeReverseAjaxEnabled</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>initApplicationScopeCreatorsAtStartup</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>jsonRpcEnabled</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>jsonpEnabled</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>preferDataUrlSchema</param-name>
            <param-value>false</param-value>
        </init-param>
        <init-param>
            <param-name>org.directwebremoting.extend.ScriptSessionManager</param-name>
            <param-value>com.a.d.dwr.DwrScriptSessionManager</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dwr-invoker</servlet-name>
        <url-pattern>/dwr/*</url-pattern>
    </servlet-mapping>

//我在前端调用

    dwr.engine.setActiveReverseAjax(true);
    dwr.engine.setNotifyServerOnPageUnload(true);
    console.log(userId);
    PushMessage2Client.addScriptSessionAttribute(userId, orgId);

//我在后台的接受和发送

//接受
public void addScriptSessionAttribute(String userId,String orgId) {
WebContext webContext = WebContextFactory.get();
ScriptSession scriptSession = webContext.getScriptSession();
scriptSession.setAttribute(USERID, userId);
scriptSession.setAttribute(ORGID, orgId);
}

//发送
public void sendMessageAuto(TriggerInfoPo triggerInfoPo){
Browser.withAllSessionsFiltered(new ScriptSessionFilter() {
@Override
public boolean match(ScriptSession session) {}, new Runnable() {
@Override
public void run() {
/**
*
* 如果上方那个过滤器返回true:则此方法调用
* 返回false:则此方法不调用
*/
ScriptSessions.addFunctionCall("show", User);
}
});

//我的dwr的jar包