优雅停止java进程

最新推荐文章于 2025-01-14 00:07:21 发布

iteye_5347

最新推荐文章于 2025-01-14 00:07:21 发布

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Ok, after all the possibilities I have chosen to work with "Java Monitoring and Management"
Overview is here
That allows you to control one application from another one in relatively easy way. You can call the controlling application from a script to stop controlled application gracefully before killing it.

Here is the simplified code:

Controlled application:
run it with the folowing VM parameters:
-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=9999
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false

//ThreadMonitorMBean.java
public interface ThreadMonitorMBean
{
String getName();
void start();
void stop();
boolean isRunning();
}

// ThreadMonitor.java
public class ThreadMonitor implements ThreadMonitorMBean
{
private Thread m_thrd = null;

public ThreadMonitor(Thread thrd)
{
	m_thrd = thrd;
}

@Override
public String getName()
{
	return "JMX Controlled App";
}

@Override
public void start()
{
	// TODO: start application here
	System.out.println("remote start called");
}

@Override
public void stop()
{
	// TODO: stop application here
	System.out.println("remote stop called");

	m_thrd.interrupt();
}

public boolean isRunning()
{
	return Thread.currentThread().isAlive();
}

public static void main(String[] args)
{
	try
	{
		System.out.println("JMX started");

		ThreadMonitorMBean monitor = new ThreadMonitor(Thread.currentThread());

		MBeanServer server = ManagementFactory.getPlatformMBeanServer();

		ObjectName name = new ObjectName("com.example:type=ThreadMonitor");

		server.registerMBean(monitor, name);

		while(!Thread.interrupted())
		{
			// loop until interrupted
			System.out.println(".");
            try 
            {
                Thread.sleep(1000);
            } 
            catch(InterruptedException ex) 
            {
                Thread.currentThread().interrupt();
            }
		}
	}
	catch(Exception e)
	{
		e.printStackTrace();
	}
	finally
	{
		// TODO: some final clean up could be here also
		System.out.println("JMX stopped");
	}
}
}

Controlling application:
run it with the stop or start as the command line argument

public class ThreadMonitorConsole
{

public static void main(String[] args)
{
	try
	{	
		// connecting to JMX
		System.out.println("Connect to JMX service.");
		JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://:9999/jmxrmi");
		JMXConnector jmxc = JMXConnectorFactory.connect(url, null);
		MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();

		// Construct proxy for the the MBean object
		ObjectName mbeanName = new ObjectName("com.example:type=ThreadMonitor");
		ThreadMonitorMBean mbeanProxy = JMX.newMBeanProxy(mbsc, mbeanName, ThreadMonitorMBean.class, true);

		System.out.println("Connected to: "+mbeanProxy.getName()+", the app is "+(mbeanProxy.isRunning() ? "" : "not ")+"running");

		// parse command line arguments
		if(args[0].equalsIgnoreCase("start"))
		{
			System.out.println("Invoke \"start\" method");
			mbeanProxy.start();
		}
		else if(args[0].equalsIgnoreCase("stop"))
		{
			System.out.println("Invoke \"stop\" method");
			mbeanProxy.stop();
		}

		// clean up and exit
		jmxc.close();
		System.out.println("Done.");	
	}
	catch(Exception e)
	{
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
}
}

That's it. :-)