eventBus()方法返回null

Question

我有一个使用primefaces 5.3,jsf 2.1, atmosphereruntime 2.3.0,spring 4.0.0, servlet 3.0的应用程序，我尝试在primefaces中使用push，但当我执行

行

EventBus eventBus = EventBusFactory.getDefault().eventBus();

它总是返回null，我在一些页面搜索，但不能解决我的问题，

This is my web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
    <display-name>Aclaraciones</display-name>
    <welcome-file-list>
        <welcome-file>login.xhtml</welcome-file>
    </welcome-file-list>
    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.xhtml</url-pattern>
    </servlet-mapping>
    <context-param>
        <description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
        <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
        <param-value>server</param-value>
    </context-param>
    <context-param>
        <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
        <param-value>resources.application</param-value>
    </context-param>
    <listener>
        <listener-class>com.sun.faces.config.ConfigureListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
    </listener>
    <context-param>
        <param-name>primefaces.THEME</param-name>
        <param-value>start</param-value>
    </context-param>
    <context-param>
        <param-name>primefaces.FONT_AWESOME</param-name>
        <param-value>true</param-value>
    </context-param>
    <session-config>
        <session-timeout>30</session-timeout>
    </session-config>
    <filter>
        <filter-name>filtro</filter-name>
        <filter-class>com.aclaraciones.filter.LoginFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>filtro</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <servlet>
        <servlet-name>Push Servlet</servlet-name>
        <servlet-class>org.primefaces.push.PushServlet</servlet-class>
        <init-param>
            <param-name>org.atmosphere.cpr.broadcasterCacheClass</param-name>
            <param-value>org.atmosphere.cache.UUIDBroadcasterCache</param-value>
        </init-param>
        <load-on-startup>0</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>Push Servlet</servlet-name>
        <url-pattern>/primepush/*</url-pattern>
    </servlet-mapping>
</web-app>

这是我的类使用端点:

@PushEndpoint("/notify")
public class PushEndPoint {
    @OnMessage(encoders = {JSONEncoder.class})
    public FacesMessage onMessage(FacesMessage message){
        return message;
    }
}

然后执行这个方法

public void socket(){
    EventBus eventBus = EventBusFactory.getDefault().eventBus();
    eventBus.publish("/notify", "Hola mundo");
}

有人知道我错过了什么吗?

Answer 1

我发现我的问题是我正在使用的primefaces版本，经过一次又一次的尝试，我发现工作的版本是5.2，我使用的大气版本是:

    <dependency>
        <groupId>org.atmosphere</groupId>
        <artifactId>atmosphere-runtime</artifactId>
        <version>2.3.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>3.3.2</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>1.6.1</version>
    </dependency>
    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>1</version>
    </dependency>

Answer 2

我遇到了这样的错误。尝试更改Atmosphere 2.4.3的版本。你也可以看这里

EventBusFactory JSF1073