http://www.eclipse.org/jetty/documentation/current/embedding-jetty.html#d0e18726


Version: 9.2.2-SNAPSHOT
 
 
Embedding Jetty
Previous  Chapter 26. Embedding
Home
 Next

Contact the core Jetty developers at www.webtide.com

private support for your internal/customer projects ... custom extensions and distributions ... versioned snapshots for indefinite support ... scalability guidance for your apps and Ajax/Comet projects ... development services from 1 day to full product delivery

Embedding Jetty

Jetty has a slogan, "Don't deploy your application in Jetty, deploy Jetty in your application!" What this means is that as an alternative to bundling your application as a standard WAR to be deployed in Jetty, Jetty is designed to be a software component that can be instantiated and used in a Java program just like any POJO. Put another way, running Jetty in embedded mode means putting an HTTP module into your application, rather than putting your application into an HTTP server.

This tutorial takes you step-by-step from the simplest Jetty server instantiation to running multiple web applications with standards-based deployment descriptors. The source for most of these examples is part of the standard Jetty project.

Overview

To embed a Jetty server the following steps are typical and are illustrated by the examples in this tutorial:

  1. Create a Server instance.

  2. Add/Configure Connectors.

  3. Add/Configure Handlers and/or Contexts and/or Servlets.

  4. Start the Server.

  5. Wait on the server or do something else with your thread.

Creating the Server

The following code from SimplestServer.java instantiates and runs the simplest possible Jetty server:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import org.eclipse.jetty.server.Server;
 
/* ------------------------------------------------------------ */
/** The simplest possible Jetty server.
 */
public class SimplestServer
{
    public static void main(String[] args) throws Exception
    {
        Server server = new Server(8080);
        server.start();
        server.dumpStdErr();
        server.join();
    }
}

This runs an HTTP server on port 8080. It is not a very useful server as it has no handlers, and thus returns a 404 error for every request.

Using Handlers

To produce a response to a request, Jetty requires that you set a Handler on the server. A handler may:

  • Examine/modify the HTTP request.

  • Generate the complete HTTP response.

  • Call another Handler (see HandlerWrapper).

  • Select one or many Handlers to call (see HandlerCollection).

HelloWorld Handler

The following code based on HelloHandler.java shows a simple hello world handler:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import java.io.IOException;
 
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.AbstractHandler;
 
public class HelloHandler extends AbstractHandler
{
    final String _greeting;
    final String _body;
 
    public HelloHandler()
    {
        _greeting="Hello World";
        _body=null;
    }
 
    public HelloHandler(String greeting)
    {
        _greeting=greeting;
        _body=null;
    }
 
    public HelloHandler(String greeting,String body)
    {
        _greeting=greeting;
        _body=body;
    }
 
    public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
    {
        response.setContentType("text/html;charset=utf-8");
        response.setStatus(HttpServletResponse.SC_OK);
        baseRequest.setHandled(true);
 
        response.getWriter().println("<h1>"+_greeting+"</h1>");
        if (_body!=null)
            response.getWriter().println(_body);
    }
}

The parameters passed to the handle method are:

  • target–the target of the request, which is either a URI or a name from a named dispatcher.

  • baseRequest–the Jetty mutable request object, which is always unwrapped.

  • request–the immutable request object, which may have been wrapped by a filter or servlet.

  • response–the response, which may have been wrapped by a filter or servlet.

The handler sets the response status, content-type, and marks the request as handled before it generates the body of the response using a writer.

Running HelloWorldHandler

To allow a Handler to handle HTTP requests, you must add it to a Server instance. The following code from OneHandler.java shows how a Jetty server can use the HelloWorld handler:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import org.eclipse.jetty.server.Server;
 
public class OneHandler
{
    public static void main(String[] args) throws Exception
    {
        Server server = new Server(8080);
        server.setHandler(new HelloHandler());
 
        server.start();
        server.join();
    }
}

One or more handlers do all request handling in Jetty. Some handlers select other specific handlers (for example, a ContextHandlerCollection uses the context path to select a ContextHandler); others use application logic to generate a response (for example, the ServletHandler passes the request to an application Servlet), while others do tasks unrelated to generating the response (for example, RequestLogHandler or StatisticsHandler).

Later sections describe how you can combine handlers like aspects. You can see some of the handlers available in Jetty in theorg.eclipse.jetty.server.handler package.

Handler Collections and Wrappers

Complex request handling is typically built from multiple Handlers that you can combine in various ways. Jetty has several implementations of the HandlerContainer interface:

HandlerCollection

Holds a collection of other handlers and calls each handler in order. This is useful for combining statistics and logging handlers with the handler that generates the response.

HandlerList

A Handler Collection that calls each handler in turn until either an exception is thrown, the response is committed or the request.isHandled() returns true. You can use it to combine handlers that conditionally handle a request, such as calling multiple contexts until one matches a virtual host.

HandlerWrapper

A Handler base class that you can use to daisy chain handlers together in the style of aspect-oriented programming. For example, a standard web application is implemented by a chain of a context, session, security and servlet handlers.

ContextHandlerCollection

A specialized HandlerCollection that uses the longest prefix of the request URI (the contextPath) to select a contained ContextHandler to handle the request.

Scoped Handlers

Much of the standard Servlet container in Jetty is implemented with HandlerWrappers that daisy chain handlers together: ContextHandler to SessionHandler to SecurityHandler to ServletHandler. However, because of the nature of the servlet specification, this chaining cannot be a pure nesting of handlers as the outer handlers sometimes need information that the inner handlers process. For example, when a ContextHandler calls some application listeners to inform them of a request entering the context, it must already know which servlet the ServletHandler will dispatch the request to so that the servletPath method returns the correct value.

The HandlerWrapper is specialized to the ScopedHandler abstract class, which supports a daisy chain of scopes. For example if a ServletHandler is nested withing a ContextHandler, the order and nesting of execution of methods is:

Server.handle(...)
  ContextHandler.doScope(...)
    ServletHandler.doScope(...)
      ContextHandler.doHandle(...)
        ServletHandler.doHandle(...)
          SomeServlet.service(...)

Thus when the ContextHandler handles the request, it does so within the scope the ServletHandler has established.

Resource Handler

The FileServer example shows how you can use a ResourceHandler to serve static content from the current working directory:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.DefaultHandler;
import org.eclipse.jetty.server.handler.HandlerList;
import org.eclipse.jetty.server.handler.ResourceHandler;
 
/* ------------------------------------------------------------ */
/** Simple Jetty FileServer.
 * This is a simple example of Jetty configured as a FileServer.
 */
public class FileServer
{
    public static void main(String[] args) throws Exception
    {
        // Create a basic Jetty server object that will listen on port 8080.  Note that if you set this to port 0
        // then a randomly available port will be assigned that you can either look in the logs for the port,
        // or programmatically obtain it for use in test cases.
        Server server = new Server(8080);
 
        // Create the ResourceHandler. It is the object that will actually handle the request for a given file. It is
        // a Jetty Handler object so it is suitable for chaining with other handlers as you will see in other examples.
        ResourceHandler resource_handler = new ResourceHandler();
        // Configure the ResourceHandler. Setting the resource base indicates where the files should be served out of.
        // In this example it is the current directory but it can be configured to anything that the jvm has access to.
        resource_handler.setDirectoriesListed(true);
        resource_handler.setWelcomeFiles(new String[]{ "index.html" });
        resource_handler.setResourceBase(".");
 
        // Add the ResourceHandler to the server.
        HandlerList handlers = new HandlerList();
        handlers.setHandlers(new Handler[] { resource_handler, new DefaultHandler() });
        server.setHandler(handlers);
 
        // Start things up! By using the server.join() the server thread will join with the current thread.
        // See "http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Thread.html#join()" for more details.
        server.start();
        server.join();
    }
 
}

Notice that a HandlerList is used with the ResourceHandler and a DefaultHandler, so that the DefaultHandler generates a good 404 response for any requests that do not match a static resource.

Embedding Connectors

In the previous examples, the Server instance is passed a port number and it internally creates a default instance of a Connector that listens for requests on that port. However, often when embedding Jetty it is desirable to explicity instantiate and configure one or more Connectors for a Server instance.

One Connector

The following example, OneConnector.java, instantiates, configures, and adds a single HTTP connector instance to the server:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
 
/* ------------------------------------------------------------ */
/**
 * A Jetty server with one connectors.
 */
public class OneConnector
{
    public static void main(String[] args) throws Exception
    {
        // The Server
        Server server = new Server();
 
        // HTTP connector
        ServerConnector http = new ServerConnector(server);
        http.setHost("localhost");
        http.setPort(8080);
        http.setIdleTimeout(30000);
         
        // Set the connector
        server.addConnector(http);
 
        // Set a handler
        server.setHandler(new HelloHandler());
 
        // Start the server
        server.start();
        server.join();
    }
}

In this example the connector handles the HTTP protocol, as that is the default for the ServerConnector class.

Many Connectors

When configuring multiple connectors (for example, HTTP and HTTPS), it may be desirable to share configuration of common parameters for HTTP. To achieve this you need to explicitly configure the ServerConnector class with ConnectionFactory instances, and provide them with common HTTP configuration.

The ManyConnectors example, configures a server with two ServerConnector instances: the http connector has a HTTPConnectionFactoryinstance; the https connector has a SslConnectionFactory chained to a HttpConnectionFactory. Both HttpConnectionFactories are configured based on the same HttpConfiguration instance, however the HTTPS factory uses a wrapped configuration so that a SecureRequestCustomizercan be added.

SPDY Connectors

The SPDYConnector example is a similar to the HTTPS connector except that the SslConnectionFactory is chained to the NPNConnectionFactory that negotiates whether the next protocol is to be SPDY/2, SPDY/3 or HTTPS.

Embedding Servlets

Servlets are the standard way to provide application logic that handles HTTP requests. Servlets are similar to a Jetty Handler except that the request object is not mutable and thus cannot be modified. Servlets are handled in Jetty by A ServletHandler. It uses standard path mappings to match a Servlet to a request; sets the requests servletPath and pathInfo; passes the request to the servlet, possibly via Filters to produce a response.

The MinimalServlets example creates a ServletHandler instance and configures a single HelloServlet:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import java.io.IOException;
 
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletHandler;
 
public class MinimalServlets
{
    public static void main(String[] args) throws Exception
    {
        // Create a basic jetty server object that will listen on port 8080.  Note that if you set this to port 0
        // then a randomly available port will be assigned that you can either look in the logs for the port,
        // or programmatically obtain it for use in test cases.
        Server server = new Server(8080);
 
        // The ServletHandler is a dead simple way to create a context handler that is backed by an instance of a
        // Servlet.  This handler then needs to be registered with the Server object.
        ServletHandler handler = new ServletHandler();
        server.setHandler(handler);
 
        // Passing in the class for the servlet allows jetty to instantite an instance of that servlet and mount it
        // on a given context path.
 
        // !! This is a raw Servlet, not a servlet that has been configured through a web.xml or anything like that !!
        handler.addServletWithMapping(HelloServlet.class, "/*");
 
        // Start things up! By using the server.join() the server thread will join with the current thread.
        // See "http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Thread.html#join()" for more details.
        server.start();
        server.join();
    }
 
    @SuppressWarnings("serial")
    public static class HelloServlet extends HttpServlet
    {
        @Override
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
        {
            response.setContentType("text/html");
            response.setStatus(HttpServletResponse.SC_OK);
            response.getWriter().println("<h1>Hello SimpleServlet</h1>");
        }
    }
}

Embedding Contexts

ContextHandler is a ScopedHandler that responds only to requests that have a URI prefix that matches the configured context path. Requests that match the context path have their path methods updated accordingly and the contexts scope is available, which optionally may include:

  • A Classloader that is set as the Thread context classloader while request handling is in scope.

  • A set of attributes that is available via the ServletContext API.

  • A set of init parameters that is available via the ServletContext API.

  • A base Resource which is used as the document root for static resource requests via the ServletContext API.

  • A set of virtual host names.

The following OneContext example shows a context being established that wraps the HelloHandler:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ContextHandler;
 
public class OneContext
{
    public static void main(String[] args) throws Exception
    {
        Server server = new Server(8080);
 
        ContextHandler context = new ContextHandler();
        context.setContextPath("/");
        context.setResourceBase(".");
        context.setClassLoader(Thread.currentThread().getContextClassLoader());
        context.setHandler(new HelloHandler());
 
        server.setHandler(context);
 
        server.start();
        server.join();
    }
}

When many contexts are present, you can embed a ContextHandlerCollection to efficiently examine a request URI to then select the matching ContextHandler(s) for the request. The ManyContexts example shows how many such contexts you can configure:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ContextHandler;
import org.eclipse.jetty.server.handler.ContextHandlerCollection;
 
public class ManyContexts
{
    public static void main(String[] args) throws Exception
    {
        Server server = new Server(8080);
 
        ContextHandler context = new ContextHandler("/");
        context.setContextPath("/");
        context.setHandler(new HelloHandler("Root Hello"));
 
        ContextHandler contextFR = new ContextHandler("/fr");
        contextFR.setHandler(new HelloHandler("Bonjoir"));
         
        ContextHandler contextIT = new ContextHandler("/it");
        contextIT.setHandler(new HelloHandler("Bongiorno"));
 
        ContextHandler contextV = new ContextHandler("/");
        contextV.setVirtualHosts(new String[]{ "127.0.0.2" });
        contextV.setHandler(new HelloHandler("Virtual Hello"));
 
        ContextHandlerCollection contexts = new ContextHandlerCollection();
        contexts.setHandlers(new Handler[] { context, contextFR, contextIT, contextV });
 
        server.setHandler(contexts);
 
        server.start();
        server.join();
    }
}

Embedding ServletContexts

ServletContextHandler is a specialization of ContextHandler with support for standard sessions and Servlets. The following OneServletContext example instantiates a DefaultServlet to server static content from /tmp/ and a DumpServlet that creates a session and dumps basic details about the request:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
 
public class OneServletContext
{
    public static void main(String[] args) throws Exception
    {
        Server server = new Server(8080);       
 
        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
        context.setContextPath("/");
        server.setHandler(context);
 
        context.addServlet(org.eclipse.jetty.servlet.DefaultServlet.class,"/");
        context.addServlet(new ServletHolder(new DumpServlet()),"/dump/*");
         
        server.start();
        server.join();
    }
}

Embedding Web Applications

WebAppContext is an extension of a ServletContextHandler that uses the standard layout and web.xml to configure the servlets, filters and other features from a web.xml and/or annotations. The following OneWebApp example configures the Jetty test webapp. Web applications can use resources the container provides, and in this case a LoginService is needed and also configured:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import java.lang.management.ManagementFactory;
 
import org.eclipse.jetty.jmx.MBeanContainer;
import org.eclipse.jetty.security.HashLoginService;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.webapp.WebAppContext;
 
public class OneWebApp
{
    public static void main(String[] args) throws Exception
    {
        // Create a basic jetty server object that will listen on port 8080. Note that if you set this to port 0 then
        // a randomly available port will be assigned that you can either look in the logs for the port,
        // or programmatically obtain it for use in test cases.
        Server server = new Server(8080);
         
        // Setup JMX
        MBeanContainer mbContainer=new MBeanContainer(ManagementFactory.getPlatformMBeanServer());
        server.addBean(mbContainer);
 
        // The WebAppContext is the entity that controls the environment in which a web application lives and
        // breathes. In this example the context path is being set to "/" so it is suitable for serving root context
        // requests and then we see it setting the location of the war. A whole host of other configurations are
        // available, ranging from configuring to support annotation scanning in the webapp (through
        // PlusConfiguration) to choosing where the webapp will unpack itself.
        WebAppContext webapp = new WebAppContext();
        webapp.setContextPath("/");
        webapp.setWar("../../jetty-distribution/target/distribution/demo-base/webapps/test.war");
 
        // A WebAppContext is a ContextHandler as well so it needs to be set to the server so it is aware of where to
        // send the appropriate requests.
        server.setHandler(webapp);
 
        // Configure a LoginService
        // Since this example is for our test webapp, we need to setup a LoginService so this shows how to create a
        // very simple hashmap based one. The name of the LoginService needs to correspond to what is configured in
        // the webapp's web.xml and since it has a lifecycle of its own we register it as a bean with the Jetty
        // server object so it can be started and stopped according to the lifecycle of the server itself.
        HashLoginService loginService = new HashLoginService();
        loginService.setName("Test Realm");
        loginService.setConfig("src/test/resources/realm.properties");
        server.addBean(loginService);
 
        // Start things up! By using the server.join() the server thread will join with the current thread.
        // See "http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Thread.html#join()" for more details.
        server.start();
        server.join();
    }
}

Like Jetty XML

The typical way to configure an instance of the Jetty server is via jetty.xml and associated configuration files. However the Jetty XML configuration format is just a simple rendering of what you can do in code; it is very simple to write embedded code that does precisely what the jetty.xml configuration does. The LikeJettyXml example following renders in code the behaviour obtained from the configuration files:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//
//      The Apache License v2.0 is available at
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//
 
package org.eclipse.jetty.embedded;
 
import java.lang.management.ManagementFactory;
 
import org.eclipse.jetty.deploy.DeploymentManager;
import org.eclipse.jetty.deploy.PropertiesConfigurationManager;
import org.eclipse.jetty.deploy.providers.WebAppProvider;
import org.eclipse.jetty.jmx.MBeanContainer;
import org.eclipse.jetty.security.HashLoginService;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.HttpConfiguration;
import org.eclipse.jetty.server.HttpConnectionFactory;
import org.eclipse.jetty.server.LowResourceMonitor;
import org.eclipse.jetty.server.NCSARequestLog;
import org.eclipse.jetty.server.SecureRequestCustomizer;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.server.SslConnectionFactory;
import org.eclipse.jetty.server.handler.ContextHandlerCollection;
import org.eclipse.jetty.server.handler.DefaultHandler;
import org.eclipse.jetty.server.handler.HandlerCollection;
import org.eclipse.jetty.server.handler.RequestLogHandler;
import org.eclipse.jetty.server.handler.StatisticsHandler;
import org.eclipse.jetty.util.ssl.SslContextFactory;
import org.eclipse.jetty.util.thread.QueuedThreadPool;
import org.eclipse.jetty.util.thread.ScheduledExecutorScheduler;
 
public class LikeJettyXml
{
    public static void main(String[] args) throws Exception
    {
        String jetty_home = System.getProperty("jetty.home","../../jetty-distribution/target/distribution");
        String jetty_base = System.getProperty("jetty.home","../../jetty-distribution/target/distribution/demo-base");
        System.setProperty("jetty.home",jetty_home);
        System.setProperty("jetty.base",jetty_base);
 
 
        // === jetty.xml ===
        // Setup Threadpool
        QueuedThreadPool threadPool = new QueuedThreadPool();
        threadPool.setMaxThreads(500);
 
        // Server
        Server server = new Server(threadPool);
 
        // Scheduler
        server.addBean(new ScheduledExecutorScheduler());
 
        // HTTP Configuration
        HttpConfiguration http_config = new HttpConfiguration();
        http_config.setSecureScheme("https");
        http_config.setSecurePort(8443);
        http_config.setOutputBufferSize(32768);
        http_config.setRequestHeaderSize(8192);
        http_config.setResponseHeaderSize(8192);
        http_config.setSendServerVersion(true);
        http_config.setSendDateHeader(false);
        // httpConfig.addCustomizer(new ForwardedRequestCustomizer());
 
        // Handler Structure
        HandlerCollection handlers = new HandlerCollection();
        ContextHandlerCollection contexts = new ContextHandlerCollection();
        handlers.setHandlers(new Handler[] { contexts, new DefaultHandler() });
        server.setHandler(handlers);
 
        // Extra options
        server.setDumpAfterStart(false);
        server.setDumpBeforeStop(false);
        server.setStopAtShutdown(true);
 
 
        // === jetty-jmx.xml ===
        MBeanContainer mbContainer=new MBeanContainer(ManagementFactory.getPlatformMBeanServer());
        server.addBean(mbContainer);
 
 
        // === jetty-http.xml ===
        ServerConnector http = new ServerConnector(server,new HttpConnectionFactory(http_config));
        http.setPort(8080);
        http.setIdleTimeout(30000);
        server.addConnector(http);
 
 
        // === jetty-https.xml ===
        // SSL Context Factory
        SslContextFactory sslContextFactory = new SslContextFactory();
        sslContextFactory.setKeyStorePath(jetty_home + "/etc/keystore");
        sslContextFactory.setKeyStorePassword("OBF:1vny1zlo1x8e1vnw1vn61x8g1zlu1vn4");
        sslContextFactory.setKeyManagerPassword("OBF:1u2u1wml1z7s1z7a1wnl1u2g");
        sslContextFactory.setTrustStorePath(jetty_home + "/etc/keystore");
        sslContextFactory.setTrustStorePassword("OBF:1vny1zlo1x8e1vnw1vn61x8g1zlu1vn4");
        sslContextFactory.setExcludeCipherSuites(
                "SSL_RSA_WITH_DES_CBC_SHA",
                "SSL_DHE_RSA_WITH_DES_CBC_SHA",
                "SSL_DHE_DSS_WITH_DES_CBC_SHA",
                "SSL_RSA_EXPORT_WITH_RC4_40_MD5",
                "SSL_RSA_EXPORT_WITH_DES40_CBC_SHA",
                "SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA",
                "SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA");
 
        // SSL HTTP Configuration
        HttpConfiguration https_config = new HttpConfiguration(http_config);
        https_config.addCustomizer(new SecureRequestCustomizer());
 
        // SSL Connector
        ServerConnector sslConnector = new ServerConnector(server,
            new SslConnectionFactory(sslContextFactory,"http/1.1"),
            new HttpConnectionFactory(https_config));
        sslConnector.setPort(8443);
        server.addConnector(sslConnector);
 
 
        // === jetty-deploy.xml ===
        DeploymentManager deployer = new DeploymentManager();
        deployer.setContexts(contexts);
        deployer.setContextAttribute("org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern",".*/servlet-api-[^/]*\\.jar$");
 
        WebAppProvider webapp_provider = new WebAppProvider();
        webapp_provider.setMonitoredDirName(jetty_base + "/webapps");
        webapp_provider.setDefaultsDescriptor(jetty_home + "/etc/webdefault.xml");
        webapp_provider.setScanInterval(1);
        webapp_provider.setExtractWars(true);
        webapp_provider.setConfigurationManager(new PropertiesConfigurationManager());
 
        deployer.addAppProvider(webapp_provider);
        server.addBean(deployer);
 
 
        // === jetty-stats.xml ===
        StatisticsHandler stats = new StatisticsHandler();
        stats.setHandler(server.getHandler());
        server.setHandler(stats);
 
 
        // === jetty-requestlog.xml ===
        NCSARequestLog requestLog = new NCSARequestLog();
        requestLog.setFilename(jetty_home + "/logs/yyyy_mm_dd.request.log");
        requestLog.setFilenameDateFormat("yyyy_MM_dd");
        requestLog.setRetainDays(90);
        requestLog.setAppend(true);
        requestLog.setExtended(true);
        requestLog.setLogCookies(false);
        requestLog.setLogTimeZone("GMT");
        RequestLogHandler requestLogHandler = new RequestLogHandler();
        requestLogHandler.setRequestLog(requestLog);
        handlers.addHandler(requestLogHandler);
 
 
        // === jetty-lowresources.xml ===
        LowResourceMonitor lowResourcesMonitor=new LowResourceMonitor(server);
        lowResourcesMonitor.setPeriod(1000);
        lowResourcesMonitor.setLowResourcesIdleTimeout(200);
        lowResourcesMonitor.setMonitorThreads(true);
        lowResourcesMonitor.setMaxConnections(0);
        lowResourcesMonitor.setMaxMemory(0);
        lowResourcesMonitor.setMaxLowResourcesTime(5000);
        server.addBean(lowResourcesMonitor);
 
 
        // === test-realm.xml ===
        HashLoginService login = new HashLoginService();
        login.setName("Test Realm");
        login.setConfig(jetty_base + "/etc/realm.properties");
        login.setRefreshInterval(0);
        server.addBean(login);
 
 
        // Start the server
        server.start();
        server.join();
    }
}

Previous  Top  Next
Chapter 26. Embedding  Home  Embedded Examples
See an error or something missing? Contribute to this documentation at  Github!(Generated: 2014-07-29T01:00:29-07:00)

jetty tutorial的更多相关文章

  1. Jetty 嵌入式开发(实例)

    我尝试了jetty几个版本,类的使用有些差异,在此记录下jettyVersion = 9.0.2.v20130417 的部分实例 maven 依赖及配置: <properties> < ...

  2. Jetty 嵌入式启动官方完整教程

    网上太多了,不如直接看官方的这个全面. http://wiki.eclipse.org/Jetty/Tutorial/Embedding_Jetty 入门地址: http://wiki.eclipse ...

  3. Message高级特性 & 内嵌Jetty实现文件服务器

    1. Messaage Properties  常见属性 更多的属性以及介绍参考:http://activemq.apache.org/activemq-message-properties.html ...

  4. jetty+mongodb 配置session外部数据库存储

    monbgodb简介 主页 http://www.mongodb.org/ oschina.net 介绍页 http://www.oschina.net/p/mongodb MongoDB是一个介于关 ...

  5. apache+jetty 配置web jsp服务器负载均衡

    首先,查找中文资料,貌似很少,有一个网友写了点,但是1版本过老,2有些地方有错误. 经过我自己摸索,记录一下.这个图很简洁明了 第一阶段 ,配置jetty 首先从 http://download.ec ...

  6. 使用ActiveMQ 传输文件 以及使用Jetty搭建内嵌文件服务器

    使用Active发送文件 ActiveMq 本身提供对于传输文件的支持. 1. 直接传输文件: 使用connection.createOutputStream 的形式.这种方式适合小文件.不能传输大文 ...

  7. [置顶] Embedded Server:像写main函数一样写Web Server

    1.传统的JEE Web Server 传统的JEE中,如果我们想要部署一个Web Application,我们需要首先安装一个Container Server,如JBoss,WebLogic,Tom ...

  8. spring 3 mvc hello world + mavern +jetty

    Spring 3 MVC hello world example By mkyong | August 2, 2011 | Updated : June 15, 2015 In this tutori ...

  9. JXSE and Equinox Tutorial, Part 2

    http://java.dzone.com/articles/jxse-and-equinox-tutorial-part-0 ———————————————————————————————————— ...

随机推荐

  1. 20155323 2016-2017-2 《Java程序设计》第8周学习总结

    20155323 2016-2017-2 <Java程序设计>第8周学习总结 教材学习内容总结 日志API:使用日志的起点是Logger类,要取得Logger类,必须使用Logger的静态 ...

  2. spring-security-4 (2)spring security 基于Java配置的搭建

    一.spring security的模块 搭建spring security首先我们要导入必须的jar,即maven的依赖.spring security按模块划分,一个模块对应一个jar. spri ...

  3. Web Server部署架构图

    一.整体架构图 二.框架的瓶颈 上述框架的瓶颈在存储NFS,现在较多的使用的是GFS分布式存储

  4. vue路由初始化路转

    <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8&quo ...

  5. CentOS 6安装php加速软件Zend Guard(转)

    (尚未验证) PHP5.3以上的版本不再支持Zend Optimizer,已经被全新的 Zend Guard Loader 取代,下面是安装Zend Guard具体步骤,以下操作均在终端命令行执行 1 ...

  6. c# 爬虫(三) 文件上传

    在上一篇中,我们说了模拟登录, 下面我们说说附件上传. 据说,最早的http协议是不支持附件上传的,后来有添加了一个RFC 2045 协议,才支持附件上传,关于附件上传,请参见 http://www. ...

  7. IEEE 754 浮点数在计算机中的表示方法

    IEEE二进制浮点数算术标准(IEEE 754)是20世纪80年代以来最广泛使用的浮点数运算标准,为许多CPU与浮点运算器所采用.这个标准定义了表示浮点数的格式(包括负零-0)与反常值(denorma ...

  8. vim自定义配置之自动括号

    BundlenInstall安装auto-pairs vimConfig/plugin/auto-pairs-setting.vim let g:autopairsflymode=

  9. springMVC国际化配置和使用

    下面是基于session的,springMVC国际花的一个例子: 需求是 输入url:展示中文界面 http://localhost:8080/MySSM/user?lang=zh 输入url:  展 ...

  10. [原]Android 开发第一步

    使用 android-studio 开发 写文章时的最新 Android-Studio 程序下载:https://dl.google.com/dl/android/studio/ide-zips/3. ...