Question

我将我的cometd从2迁移到3并遇到了一些问题：
握手永远不会成功，并且没有错误消息。我尽我所能，但仍然徒劳无功。
这是我的代码：

ConfigurationServlet：

 @Override
public void init() throws ServletException {
    logger.info("start prepare echoService...");
    // Grab the Bayeux object
    BayeuxServer bayeuxServer = (BayeuxServer) getServletContext().getAttribute(BayeuxServer.ATTRIBUTE);
    bayeuxServer.createChannelIfAbsent(NODE_CHANNEL, new ServerChannel.Initializer() { //1030829 change createIfAbsend to createChannelIfAbsent
        @Override
        public void configureChannel(ConfigurableServerChannel channel) {
            channel.setPersistent(true);
        }
    });

    EchoService echoService = new EchoService(bayeuxServer);
    logger.info("...prepare echoService done");

}

EchoService：

 public EchoService(BayeuxServer bayeuxServer) {
    super(bayeuxServer, "echo");
    //for what?
    logger.info("=============enter echoService constructor=============");
    addService("/echo", "processEcho");
    addService(CometdProperties.COMETD_CHANNEL_WEB, "processReq");
    logger.info("=============leaving echoService constructor=============");
    isEchoServiceStarted = true;
}

public void processEcho(ServerSession remote, ServerMessage message) {
    remote.deliver(getServerSession(), "/echo", message.getData());
}

public void processReq(ServerSession remote, ServerMessage message) {
//do something...
}

我的客户端中的InitConnect：

public boolean initConnect(String channel, ClientSessionChannel.MessageListener ml) {
    HClogger.info("=============initConnect=============Listener:" + ml);
    HttpClient httpClient = new HttpClient();
    try {
        httpClient.start();
    } catch (Exception ex) {
        HClogger.error(ex.toString());
         if(connCnt<10){//Retry 9 times.
        connCnt++;
        return initConnect(channel,ml);
        }
        return false;
    }
    HClogger.info("*********************************try connect to server...");
    Map<String, Object> options = new HashMap<>();
    ClientTransport longPool = new LongPollingTransport(options, httpClient);
    bayeuxClient = new BayeuxClient(CometdProperties.COMETD_DEFAULTURL, longPool);
    bayeuxClient.handshake();
    boolean handshaken = bayeuxClient.waitFor(10000, BayeuxClient.State.CONNECTED);
    if (handshaken) {
        HClogger.info("connected to server ok...");
        bayeuxClient.getChannel(channel).subscribe(ml);
        HClogger.info("subscribed to " + channel + " channel.");
        try {
            Thread.sleep(2000); 
        } catch (InterruptedException ex) {
            HClogger.error("Error when sleep after subscribe.", ex);
        }
        HClogger.info("=============HandleClient subscribe done.=============");
        return true;
    } else {
        HClogger.info("=============HandleClient handshake fail.=============");
        if(connCnt<10){//Retry 9 times.
        connCnt++;
        return initConnect(channel,ml);
        }
        return false;
    }

}

Web.xml中：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
<context-param>
    <param-name>javax.faces.PROJECT_STAGE</param-name>
    <param-value>Development</param-value>
</context-param>
<servlet>  
    <servlet-name>cometd</servlet-name>
    <servlet-class>org.cometd.server.CometDServlet</servlet-class>

    <init-param>
        <param-name>timeout</param-name>
        <param-value>300000</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
    <async-supported>true</async-supported>
</servlet>   

<servlet>
    <servlet-name>ConfigurationServlet</servlet-name>
    <servlet-class>org.astri.ims.ccs.webcommand.ConfigurationServlet</servlet-class>
    <load-on-startup>3</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>ConfigurationServlet</servlet-name>
    <url-pattern>/ConfigurationServlet</url-pattern>
</servlet-mapping> 

<servlet-mapping>
    <servlet-name>cometd</servlet-name>
    <url-pattern>/cometd/*</url-pattern>
</servlet-mapping> 

<session-config>
    <session-timeout>
        30
    </session-timeout>
</session-config>
<welcome-file-list>
    <welcome-file>faces/index.xhtml</welcome-file>
</welcome-file-list>
</web-app>

以下是我在lib中添加的内容：

贝叶-API-3.0.1.jar
的cometd-Java的客户机 - 3.0.1.jar
的cometd-java的共3.0.1.jar
的cometd-java的服务器2.0.1.jar
杰克逊映射器-ASL-1.9.12.jar
的javax.servlet-3.1.jar
码头-客户9.2.2v20140723.jar
码头-HTTP-9.2.2v20140723.jar
码头-IO-9.2.2v20140723.jar
码头-JMX-9.2.2v20140723.jar
码头 - 服务器 - 9.2.2v20140723.jar
码头-servlet的9.2.2v20140723.jar
码头-util的-9.2.2v20140723.jar
码头-util的-Ajax的9.2.2v20140723.jar

我的代码或配置有什么问题吗？

更新

我在meta_channel中添加了一个监听器，我在握手时得到了这个：

{"id":"3","failure":{"message":{"id":"3","supportedConnectionTypes":["long-polling"],"channel":"/meta/handshake","version":"1.0"},"exception":"java.util.concurrent.TimeoutException: Total timeout elapsed","connectionType":"long-polling"},"subscription":null,"successful":false,"channel":"/meta/handshake"}

Answer 1

事实证明，glassfish4中存在一个错误感谢@sbordet调查并了解发生了什么有关详细信息，请visit here。

对于想要使用CometD3的人，建议使用Jetty容器对于那些别无选择但只能使用玻璃鱼的人来说，Cometd2.X可以工作我试过在glassfish4中使用cometd2.9.1,3.0.0和3.0.1，结果是 2.9.1适用于glassfish4而3.0.0和3.0.1不适用。

在Glassfish中将Cometd 2迁移到Cometd3-握手失败

更新

1 个答案: