Question

我使用Camel来路由Activemq消息。 Camel使用org.apache.camel.Main类启动，如下所示：

public class SDaemon {

    private org.apache.camel.Main main;

    public static void main(String[] args) throws Exception {
        SDaemon sDaemon = new SDaemon();
        sDaemon.boot();
    }

    public void boot() {
        try {
            main = new Main();
            main.enableHangupSupport();

            PooledConnectionFactory p = new PooledConnectionFactory();
            p.setMaxConnections(8);
            p.setMaximumActiveSessionPerConnection(500);

            ActiveMQComponent comp1 = activeMQComponent("tcp://localhost:61616");
            comp1.setUsePooledConnection(true);
            comp1.setConnectionFactory(p.getConnectionFactory());

            ActiveMQComponent comp2 = activeMQComponent("tcp://192.168.10.103:61616");
            comp2.setUsePooledConnection(true);
            comp2.setConnectionFactory(p.getConnectionFactory());

            main.bind("activemq", comp1);                                               //ToGet
            main.bind("activemq2", comp2);                                              //ToInOut
            main.bind("activemqException", activeMQComponent("tcp://localhost:61616")); //OnException

            main.addRouteBuilder(new MyRouteBuilder());

            System.out.println("Starting Camel(SDaemon). Use ctrl + c to terminate the JVM.\n");
            main.run();
        } catch (Exception e){
            e.printStackTrace();
        }
    }

    private static class MyRouteBuilder extends RouteBuilder {
        @Override
        public void configure() throws Exception {
            //...
        }
    }
}

问题：当我发送Ctrl+C来关闭骆驼时，会记录此警告：

Unable to register shutdown hook due to JVM state

为什么呢？以及如何解决这个问题？

Answer 1

请看一下这个关于优雅地关闭驼峰的页面 - http://camel.apache.org/graceful-shutdown.html

您可以使用以下方式取消警告：

context.getShutdownStrategegy().setSuppressLoggingOnTimeout(true);

Apache Camel：由于JVM状态，无法注册shutdown hook

1 个答案: