查看本类的 API文档回源码主页即时通讯网 - 即时通讯开发者社区!
1   /*
2    * Copyright 2012 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package org.jboss.netty.example.echo;
17  
18  import org.jboss.netty.bootstrap.ServerBootstrap;
19  import org.jboss.netty.channel.ChannelPipeline;
20  import org.jboss.netty.channel.ChannelPipelineFactory;
21  import org.jboss.netty.channel.Channels;
22  import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
23  import org.jboss.netty.handler.ssl.SslContext;
24  import org.jboss.netty.handler.ssl.util.SelfSignedCertificate;
25  
26  import java.net.InetSocketAddress;
27  import java.util.concurrent.Executors;
28  
29  /**
30   * Echoes back any received data from a client.
31   */
32  public final class EchoServer {
33  
34      static final boolean SSL = System.getProperty("ssl") != null;
35      static final int PORT = Integer.parseInt(System.getProperty("port", "8007"));
36  
37      public static void main(String[] args) throws Exception {
38          // Configure SSL.
39          final SslContext sslCtx;
40          if (SSL) {
41              SelfSignedCertificate ssc = new SelfSignedCertificate();
42              sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
43          } else {
44              sslCtx = null;
45          }
46  
47          // Configure the bootstrap.
48          ServerBootstrap bootstrap = new ServerBootstrap(
49                  new NioServerSocketChannelFactory(
50                          Executors.newCachedThreadPool(),
51                          Executors.newCachedThreadPool()));
52  
53          bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
54              public ChannelPipeline getPipeline() {
55                  ChannelPipeline p = Channels.pipeline();
56                  if (sslCtx != null) {
57                      p.addLast("ssl", sslCtx.newHandler());
58                  }
59                  p.addLast("echo", new EchoServerHandler());
60                  return p;
61              }
62          });
63  
64          bootstrap.setOption("child.tcpNoDelay", true);
65          bootstrap.setOption("child.receiveBufferSize", 1048576);
66          bootstrap.setOption("child.sendBufferSize", 1048576);
67  
68          // Bind and start to accept incoming connections.
69          bootstrap.bind(new InetSocketAddress(PORT));
70      }
71  }