How to gracefully close the built-in marina

Question

I have an application running on the pier's embedded server. Now I want to start / stop the server as a service. I am using a script to start the server.

java $JAVA_OPTS -DREQ_JAVA_VERSION=$JAVA_VERSION -jar myjetty.jar

Main class

Server server = new Server();
SelectChannelConnector connector = new SelectChannelConnector();
connector.setPort(PORT);
server.addConnector(connector);
HandlerCollection handlers = new HandlerCollection();
NCSARequestLog requestLog = new NCSARequestLog();
requestLog.setFilename(home + "/logs/access_" + logFileDateFormat
            + ".log");
requestLog.setFilenameDateFormat(logFileDateFormat);
requestLog.setRetainDays(10);
requestLog.setAppend(true);
requestLog.setExtended(false);
requestLog.setLogCookies(false);
requestLog.setLogTimeZone(TimeZone.getDefault().getID());
RequestLogHandler requestLogHandler = new RequestLogHandler();
requestLogHandler.setRequestLog(requestLog);
handlers.addHandler(requestLogHandler);
server.setHandler(handlers);
server.start();
server.join();

This will start the server. Stopping and / or restarting the embedded Jetty instance through a web call can be used to stop the server, but, How to stop the server from a script? and what changes should I make to scream the server in the main class.

Answer 1

Jetty. Jetty stop() . , .

() ...

• RMI RMI
• JMX MBean MBean
• , .

, , curl, , , ( )

public class MyJetty {

    public static void main(String[] args) throws Exception {
        int PORT = 9103;
        String home = System.getProperty("user.home");
        String logFileDateFormat = "yyyy_MM_dd";

        // execute a request to http://localhost:9103/stop
        // instead of `curl -v http://localhost:9103/stop`
        if (args.length == 1 && "stop".equalsIgnoreCase(args[0])) {
            URL url = new URL("http", "localhost", PORT, "/stop");
            try (InputStream in = url.openStream()) {
                int r;
                while ((r = in.read()) != -1) {
                    System.out.write(r);
                }
                return;
            } catch (IOException ex) {
                System.err.println("stop Jetty failed: " + ex.getMessage());
            }
        }

        Server server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(PORT);
        server.addConnector(connector);
        HandlerCollection handlers = new HandlerCollection();
        NCSARequestLog requestLog = new NCSARequestLog();
        requestLog.setFilename(home + "/logs/access_" + logFileDateFormat + ".log");
        requestLog.setFilenameDateFormat(logFileDateFormat);
        requestLog.setRetainDays(10);
        requestLog.setAppend(true);
        requestLog.setExtended(false);
        requestLog.setLogCookies(false);
        requestLog.setLogTimeZone(TimeZone.getDefault().getID());
        RequestLogHandler requestLogHandler = new RequestLogHandler();
        requestLogHandler.setRequestLog(requestLog);
        handlers.addHandler(requestLogHandler);

        // the class YourHandler is the one from your link
        handlers.addHandler(new YourHandler(server));

        server.setHandler(handlers);
        server.start();
        server.join();
    }
}

• java MyJetty
• java MyJetty stop

Answer 2

setStopTimeout (long timeout) Jetty . Handler.

: Jetty Server.class setStopTimeout (long)

.

YourServletHandler servletHandler = new YourServletHandler();
StatisticsHandler statsHandler = new StatisticsHandler();
statsHandler.setHandler(servletHandler);

Server server = new Server(80);
server.setHandler(statsHandler);
server.setStopTimeout(3000L);

//...
server.start();

//...
server.stop();

Answer 3

Since Jetty 7.5.x you can use org.eclipse.jetty.server.handler.ShutdownHandlerin your code:

Server server = new Server(8080);
HandlerList handlers = new HandlerList();
handlers.setHandlers(new Handler[]
{ someOtherHandler, new ShutdownHandler("secret_password", false, true) });
server.setHandler(handlers);
server.start();

... which will allow you to close your berth by sending the following http POST request:

curl -X POST http://localhost:8080/shutdown?token=secret_password