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问题描述

在像我这样的环境中,有人能使用a4j:push标签吗?

does anybody have the a4j:push tag functional in an environment simular like mine?

  • Richfaces 4.1-FINAL
  • MyFaces 2.1.5
  • 大气0.83
  • Tomcat 7.0.23

任何建议都非常欢迎.

谢谢,米洛·范德泽(Milo van der Zee)

Thanks,Milo van der Zee

这是我要测试的东西:

web.xml(固定):

web.xml ( fixed):

...
<!-- Richfaces push servlet -->
<context-param>
    <param-name>org.richfaces.push.jms.disable</param-name>
    <param-value>true</param-value>
</context-param>
<context-param>
    <param-name>org.atmosphere.useBlocking</param-name>
    <param-value>true</param-value>
</context-param>
<filter>
    <filter-name>PushFilter</filter-name>
    <filter-class>org.richfaces.webapp.PushFilter</filter-class>
    <async-supported>true</async-supported>
</filter>
<filter-mapping>
    <filter-name>PushFilter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<context-param>
    <param-name>org.richfaces.push.handlerMapping</param-name>
    <param-value>/__richfaces_push</param-value>
</context-param>
<servlet>
    <servlet-name>Push Servlet</servlet-name>
    <servlet-class>org.richfaces.webapp.PushServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Push Servlet</servlet-name>
    <url-pattern>/__richfaces_push</url-pattern>
</servlet-mapping>
...

TestPushBean.java:

TestPushBean.java:

package com.vetmanager.base.test;

import java.text.SimpleDateFormat;
import java.util.Calendar;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;

import org.apache.log4j.Logger;
import org.richfaces.application.push.MessageException;
import org.richfaces.application.push.TopicKey;
import org.richfaces.application.push.TopicsContext;

/**
 *
 */
@ManagedBean
@SessionScoped
public class TestPushBean {
    private static final Logger LOGGER = Logger.getLogger(TestPushBean.class.getName());

    private static final TopicKey TOPIC_KEY = new TopicKey("push");

    /**
     * Constructor init's the topic.
     */
    public TestPushBean() {
        LOGGER.debug("TestPushBean");

        TopicsContext topicsContext = TopicsContext.lookup();
        topicsContext.getOrCreateTopic(TOPIC_KEY);
    }

    /**
     * @return String
     */
    public String getNow() {
        LOGGER.debug("getNow");

        Calendar now = Calendar.getInstance();
        SimpleDateFormat dateFormatter = new SimpleDateFormat("dd-MMM-yyyy/HH:mm:ss");
        return dateFormatter.format(now.getTime());
    }

    /**
     * 
     */
    public void push() {
        LOGGER.debug("push");

        TopicsContext topicsContext = TopicsContext.lookup();
        try {
            topicsContext.publish(TOPIC_KEY, "Test String");
        } catch (MessageException e) {
            LOGGER.error("push: " + e, e);
        }
    }
}

和:test.xhtml:

and:test.xhtml:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
  xmlns="http://www.w3.org/1999/xhtml"
  xmlns:h="http://java.sun.com/jsf/html"
  xmlns:f="http://java.sun.com/jsf/core"
  xmlns:a4j="http://richfaces.org/a4j"
  xmlns:ui="http://java.sun.com/jsf/facelets"
  xmlns:rich="http://richfaces.org/rich"
  xmlns:fn="http://java.sun.com/jsp/jstl/functions"
  xmlns:c="http://java.sun.com/jsp/jstl/core"
>

<h:head>
</h:head>

<h:body>
    <h:form>
        <a4j:push id="push" address="push" onerror="alert(event.rf.data)">
            <a4j:ajax event="dataavailable" render="now" execute="@none"/>
        </a4j:push>

        Tijd: <h:outputText id="now" value="#{testPushBean.now}"/><br/>

        <a4j:commandButton value="event" actionListener="#{testPushBean.push()}"/>
    </h:form>
</h:body>

</html>

推荐答案

对于使用Servlets API 2.5的用户,此论坛帖子可能会很有用(当您使用版本= 2.5的web.xml时也会出现此问题):

This forum post may be useful from someone who is using Servlets API 2.5(also problem when you are using web.xml with version=2.5):

https://community.jboss.org/message/647015#647015

您的具体问题可能是:

将Atmosphere 0.8.0-RC1与RichFaces 4.1.0.Final一起使用,因为Atmosphere 0.8.3具有与RC1不兼容的API!

Use Atmosphere 0.8.0-RC1 with RichFaces 4.1.0.Final, since Atmosphere 0.8.3 has incompatible API with RC1!

否则,我需要提供一些症状.

Otherwise I would need to provide some symptoms.

这篇关于Richfaces 4.1和a4j:push:如何使其正常工作?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

09-22 09:42