Jetty 9 Server没有start（）方法

Question

I am trying to embed a Jetty server in an application and am seeing a really strange problem:

According to documentation, a simple server (which I am building as a test) can be started up using the following code:

import org.eclipse.jetty.server.Server;

public class SimpleServer throws Exception
{

   public static void main(String[] args)
   {
      Server server = new Server(8080);

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

}

I believe I have the correct Jar file from the downloaded Jetty:

jetty-server-9.3.7.v20160115.jar

Unfortunately, I am seeing that the Server class I am using has no public start() method. It has a protected start() method that has a LifeCycle parameter, but that is it. The public start() method referenced in the documentation (and in several answers here in Stack Overflow) does not exist!

Am I using the right Server class? If not, where do I get a proper one???

Someone please advise...

Answer 1

You need also add "jetty-util-{version}" into your project and this will fix your issue. Or you can use maven in your project and add "jetty-server-{version}" as maven dependency. Maven will automatically download all jetty-server relative jars (including jetty-util-{version}).

Answer 2

There's no problem here.

A public modifier Server.start() exists, and has existed since (at least) Jetty 5.0 days.

Not sure what library / build you are using, but this method is not protected, in the Server class, the AbstractLifeCycle (abstract) class or even the LifeCycle interface.

Answer 3

public abstract interface org.eclipse.jetty.util.component.LifeCycle

在jetty-util-{version}.jar ，将此jar添加到项目构建路径中

Answer 4

Server.start() is protected. If you write a MyJetty class which does nothing but extend he jetty Server, and it is an inner class, you can call the start() method on it.

Here's what I did in the class that wanted to start Jetty()

/**
 * Extend the jetty server just so you can call the protected method start()
 */
static class MyJettyServer extends Server {

    public MyJettyServer(int port) {
        super(port);
    }
}

This seems like very much the wrong answer, but it worked.