如果我尝试使用带有HTTPS的JettyHelper在嵌入式Jetty中运行Restlet。 Restlet是从Jetty开始的，如果我运行jar并在端口443上侦听。但是在第一个请求我从Jetty获得绑定异常但是一切都运行良好：
INFO | jvm 1 | 2013/08/05 07:35:43 | 2013-08-05 07:35:43.720:INFO:oejs.Server:jetty-7.6.5.v20120716
INFO | jvm 1 | 2013/08/05 07:35:43 | 2013-08-05 07:35:43.813:INFO:oejs.AbstractConnector:Started SslSelectChannelConnector@0.0.0.0:443
INFO | jvm 1 | 2013/08/05 07:35:43 | 2013-08-05 07:35:43.814:INFO:oejs.Server:jetty-7.6.5.v20120716
INFO | jvm 1 | 2013/08/05 07:35:43 | 2013-08-05 07:35:43.820:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8182
INFO | jvm 1 | 2013/08/05 07:36:35 | 2013-08-05 07:36:35.730:INFO:oejs.Server:jetty-7.6.5.v20120716
INFO | jvm 1 | 2013/08/05 07:36:35 | 2013-08-05 07:36:35.733:WARN:oejuc.AbstractLifeCycle:FAILED SslSelectChannelConnector@0.0.0.0:443: java.net.BindException: Die Adresse wird bereits verwendet
INFO | jvm 1 | 2013/08/05 07:36:35 | java.net.BindException: Die Adresse wird bereits verwendet
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.Net.bind0(Native Method)
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.Net.bind(Net.java:444)
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.Net.bind(Net.java:436)
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.nio.SelectChannelConnector.open(SelectChannelConnector.java:182)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:311)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.nio.SelectChannelConnector.doStart(SelectChannelConnector.java:260)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.ssl.SslSelectChannelConnector.doStart(SslSelectChannelConnector.java:626)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.Server.doStart(Server.java:281)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.ext.jetty.JettyServerHelper.start(JettyServerHelper.java:398)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.Server.start(Server.java:590)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.Restlet.handle(Restlet.java:315)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.Server.handle(Server.java:513)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.engine.ServerHelper.handle(ServerHelper.java:72)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.engine.adapter.HttpServerHelper.handle(HttpServerHelper.java:152)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.ext.jetty.JettyServerHelper$WrappedServer.handle(JettyServerHelper.java:170)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:452)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:884)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:938)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:630)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:77)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.io.nio.SslConnection.handle(SslConnection.java:191)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:622)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:46)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:603)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:538)
INFO | jvm 1 | 2013/08/05 07:36:35 | at java.lang.Thread.run(Thread.java:724)
INFO | jvm 1 | 2013/08/05 07:36:35 | 2013-08-05 07:36:35.735:WARN:oejuc.AbstractLifeCycle:FAILED org.restlet.ext.jetty.JettyServerHelper$WrappedServer@60ce274e: java.net.BindException: Die Adresse wird bereits verwendet
INFO | jvm 1 | 2013/08/05 07:36:35 | java.net.BindException: Die Adresse wird bereits verwendet
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.Net.bind0(Native Method)
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.Net.bind(Net.java:444)
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.Net.bind(Net.java:436)
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
INFO | jvm 1 | 2013/08/05 07:36:35 | at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.nio.SelectChannelConnector.open(SelectChannelConnector.java:182)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:311)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.nio.SelectChannelConnector.doStart(SelectChannelConnector.java:260)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.ssl.SslSelectChannelConnector.doStart(SslSelectChannelConnector.java:626)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.Server.doStart(Server.java:281)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.ext.jetty.JettyServerHelper.start(JettyServerHelper.java:398)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.Server.start(Server.java:590)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.Restlet.handle(Restlet.java:315)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.Server.handle(Server.java:513)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.engine.ServerHelper.handle(ServerHelper.java:72)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.engine.adapter.HttpServerHelper.handle(HttpServerHelper.java:152)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.restlet.ext.jetty.JettyServerHelper$WrappedServer.handle(JettyServerHelper.java:170)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:452)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:884)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:938)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:630)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:77)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.io.nio.SslConnection.handle(SslConnection.java:191)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:622)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:46)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:603)
INFO | jvm 1 | 2013/08/05 07:36:35 | at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:538)
INFO | jvm 1 | 2013/08/05 07:36:35 | at java.lang.Thread.run(Thread.java:724)
为什么Jetty试图开始两次？我怎么能得到这个例外呢？
源代码：
import java.security.KeyStore;
import org.restlet.Application;
import org.restlet.Component;
import org.restlet.Context;
import org.restlet.Restlet;
import org.restlet.Server;
import org.restlet.data.Parameter;
import org.restlet.data.Protocol;
import org.restlet.engine.Engine;
import org.restlet.ext.jetty.HttpServerHelper;
import org.restlet.ext.jetty.HttpsServerHelper;
import org.restlet.routing.Router;
import org.restlet.util.Series;
public class RestServer extends Application {
private RestServer(Context context) {
super(context);
}
public static void main(String[] args) throws Exception {
Engine.setLogLevel(java.util.logging.Level.INFO);
Component component = new Component();
component.getLogService().setLoggerName("net.asdf.WebComponent.www");
Context context = component.getContext().createChildContext();
component.getDefaultHost().attach(new RestServer(context));
startHttpsServer(context, component, 443).start();
startHttpServer(context, component, 8182).start();
}
private static HttpServerHelper startHttpServer(Context context, Component component, Integer port) throws Exception {
//create embedding http jetty server
Server embedingHttpJettyServer=new Server(
context,
Protocol.HTTP,
port,
component
);
//construct and start JettyServerHelper
HttpServerHelper jettyHttpServerHelper=new HttpServerHelper(embedingHttpJettyServer);
return jettyHttpServerHelper;
}
private static HttpsServerHelper startHttpsServer(Context context, Component component, Integer port) throws Exception {
//create embedding https jetty server
final Server embedingHttpsJettyServer=new Server(
context,
Protocol.HTTPS,
port, // 8183,
component
);
Series<Parameter> parameters = embedingHttpsJettyServer.getContext().getParameters();
// parameters.add("sslContextFactory", "org.restlet.ext.ssl.PkixSslContextFactory");
// parameters.add("sslContextFactory", "org.eclipse.jetty.http.ssl.SslContextFactory");
parameters.add("keystore", "jks/keystore.jks");
parameters.add("keyStorePath", "jks/keystore.jks");
parameters.add("keyStorePassword", "xxxxx");
parameters.add("keyManagerPassword", "xxxx");
parameters.add("keyPassword", "xxxx");
parameters.add("password", "xxx");
parameters.add("keyStoreType", KeyStore.getDefaultType());
parameters.add("tracing", "true");
parameters.add("truststore", "jks/keystore.jks");
parameters.add("trustStorePath", "jks/keystore.jks");
parameters.add("trustStorePassword", "xxxxx");
parameters.add("trustPassword", "xxxxx");
parameters.add("trustStoreType", KeyStore.getDefaultType());
parameters.add("allowRenegotiate", "true");
parameters.add("type", "1");
//construct and start JettyServerHelper
HttpsServerHelper jettyHttpsServerHelper = new HttpsServerHelper(embedingHttpsJettyServer);
return jettyHttpsServerHelper;
}
/**
* Creates a root Restlet that will receive all incoming calls.
*/
@Override
public Restlet createInboundRoot() {
// Create a router Restlet that routes each call to a
Context routerContext = getContext().createChildContext();
Router router = new Router(routerContext);
router.attachDefault(DefaultResource.class);
return router;
}
}
答案 0 :(得分：5)
我已经更新了“main”，“startHttpServer”和“startHttpsServer”方法，以使代码工作：
public static void main(String[] args) throws Exception {
Engine.setLogLevel(java.util.logging.Level.INFO);
Component component = new Component();
component.getLogService().setLoggerName("net.asdf.WebComponent.www");
component.getDefaultHost().attach(new TestPatrick());
// Attach the server connectors descriptors to the component
component.getServers().add(startHttpsServer(component, 443));
component.getServers().add(startHttpServer(component, 8182));
// Start the component, which will lead to start, at the end, the real connectors.
component.start();
}
private static Server startHttpServer(Component component, Integer port) throws Exception {
return new Server(Protocol.HTTP, port, component);
}
private static Server startHttpsServer(Component component, Integer port) throws Exception {
// create embedding https jetty server
Server server = new Server(new Context(), Protocol.HTTPS, port, component);
Series<Parameter> parameters = server.getContext().getParameters();
parameters.add("keystore", "jks/keystore.jks");
parameters.add("keyStorePath", "jks/keystore.jks");
parameters.add("keyStorePassword", "xxx");
parameters.add("keyManagerPassword", "xxx");
parameters.add("keyPassword", "xxx");
parameters.add("password", "xxx");
parameters.add("keyStoreType", KeyStore.getDefaultType());
parameters.add("tracing", "true");
parameters.add("truststore", "jks/keystore.jks");
parameters.add("trustStorePath", "jks/keystore.jks");
parameters.add("trustStorePassword", "xxx");
parameters.add("trustPassword", "xxx");
parameters.add("trustStoreType", KeyStore.getDefaultType());
parameters.add("allowRenegotiate", "true");
parameters.add("type", "1");
return server;
}
以下是一些解释。 Component是应用程序的容器，旨在为这些应用程序提供一些服务。例如，它提供服务器连接器，帮助使用多个协议通过客户端请求访问应用程序。 Restlet框架提供了几个服务器连接器的实现;一个是内部的，另一个是基于特定的框架，如Jetty。因为我们不希望您的代码依赖于特定的扩展，所以它允许组件使用Server类声明其所需的服务器连接器，该类充当描述符。然后，引擎会发现位于类路径中的实现，并透明地创建真正的服务器帮助程序。
我希望我的解释清楚。如果没有，请随时提出要求。
答案 1 :(得分：0)
你的问题：为什么Jetty试图开始两次？我怎么能得到这个例外呢？
四年后回答你的问题让我觉得我是一个坚果工作，但我们走了。我真的在回答别人的问题。
Jetty服务器启动两次（不太正确）的原因是Jetty帮助程序检测到没有任何服务器正在运行，因此它启动了一个新实例。帮助者不知道该实例的原因是因为你调用了：
startHttpServer(context, component, 8182).start();
helper.start()方法未设置Restlet.start标志，并且助手在尝试启动服务器时正在检查此标志。是的，这是HttpServerHelper中的一个错误。
所以不要打电话：
startHttpsServer(context, component, 443).start();
startHttpServer(context, component, 8182).start();
你应该把它改成：
Server s1 = startHttpServer(context, component, 8182); // startHttpServer should return Server instead of HttpServerHelper. The method still instantiates HttpServerHelper
Server s2 = startHttpsServer(context, component, 443);
component.getServers().add(s1);
component.getServers().add(s2);
component.start();