781a85520c
Motivation: Adding an example that showcases Netty’s HTTP/2 codec and that is slightly more complex than the existing hello-world example. It is based on the Gopher tiles example available here: https://http2.golang.org/gophertiles?latency=0 Modifications: Moved current http2 example to http2/helloworld. Added http2 tiles example under http2/tiles. Result: A Netty tiles example is available.
94 lines
4.1 KiB
Java
94 lines
4.1 KiB
Java
/*
|
|
* Copyright 2014 The Netty Project
|
|
*
|
|
* The Netty Project licenses this file to you under the Apache License,
|
|
* version 2.0 (the "License"); you may not use this file except in compliance
|
|
* with the License. You may obtain a copy of the License at:
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*/
|
|
|
|
package io.netty.example.http2.helloworld.server;
|
|
|
|
import io.netty.bootstrap.ServerBootstrap;
|
|
import io.netty.channel.Channel;
|
|
import io.netty.channel.ChannelOption;
|
|
import io.netty.channel.EventLoopGroup;
|
|
import io.netty.channel.nio.NioEventLoopGroup;
|
|
import io.netty.channel.socket.nio.NioServerSocketChannel;
|
|
import io.netty.handler.codec.http2.Http2OrHttpChooser.SelectedProtocol;
|
|
import io.netty.handler.codec.http2.Http2SecurityUtil;
|
|
import io.netty.handler.logging.LogLevel;
|
|
import io.netty.handler.logging.LoggingHandler;
|
|
import io.netty.handler.ssl.ApplicationProtocolConfig;
|
|
import io.netty.handler.ssl.ApplicationProtocolConfig.Protocol;
|
|
import io.netty.handler.ssl.ApplicationProtocolConfig.SelectedListenerFailureBehavior;
|
|
import io.netty.handler.ssl.ApplicationProtocolConfig.SelectorFailureBehavior;
|
|
import io.netty.handler.ssl.OpenSsl;
|
|
import io.netty.handler.ssl.SslContext;
|
|
import io.netty.handler.ssl.SslContextBuilder;
|
|
import io.netty.handler.ssl.SslProvider;
|
|
import io.netty.handler.ssl.SupportedCipherSuiteFilter;
|
|
import io.netty.handler.ssl.util.SelfSignedCertificate;
|
|
|
|
/**
|
|
* A HTTP/2 Server that responds to requests with a Hello World. Once started, you can test the
|
|
* server with the example client.
|
|
*/
|
|
public final class Http2Server {
|
|
|
|
static final boolean SSL = System.getProperty("ssl") != null;
|
|
|
|
static final int PORT = Integer.parseInt(System.getProperty("port", SSL? "8443" : "8080"));
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
// Configure SSL.
|
|
final SslContext sslCtx;
|
|
if (SSL) {
|
|
SslProvider provider = OpenSsl.isAlpnSupported() ? SslProvider.OPENSSL : SslProvider.JDK;
|
|
SelfSignedCertificate ssc = new SelfSignedCertificate();
|
|
sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey())
|
|
.sslProvider(provider)
|
|
/* NOTE: the cipher filter may not include all ciphers required by the HTTP/2 specification.
|
|
* Please refer to the HTTP/2 specification for cipher requirements. */
|
|
.ciphers(Http2SecurityUtil.CIPHERS, SupportedCipherSuiteFilter.INSTANCE)
|
|
.applicationProtocolConfig(new ApplicationProtocolConfig(
|
|
Protocol.ALPN,
|
|
// NO_ADVERTISE is currently the only mode supported by both OpenSsl and JDK providers.
|
|
SelectorFailureBehavior.NO_ADVERTISE,
|
|
// ACCEPT is currently the only mode supported by both OpenSsl and JDK providers.
|
|
SelectedListenerFailureBehavior.ACCEPT,
|
|
SelectedProtocol.HTTP_2.protocolName(),
|
|
SelectedProtocol.HTTP_1_1.protocolName()))
|
|
.build();
|
|
} else {
|
|
sslCtx = null;
|
|
}
|
|
// Configure the server.
|
|
EventLoopGroup group = new NioEventLoopGroup();
|
|
try {
|
|
ServerBootstrap b = new ServerBootstrap();
|
|
b.option(ChannelOption.SO_BACKLOG, 1024);
|
|
b.group(group)
|
|
.channel(NioServerSocketChannel.class)
|
|
.handler(new LoggingHandler(LogLevel.INFO))
|
|
.childHandler(new Http2ServerInitializer(sslCtx));
|
|
|
|
Channel ch = b.bind(PORT).sync().channel();
|
|
|
|
System.err.println("Open your HTTP/2-enabled web browser and navigate to " +
|
|
(SSL? "https" : "http") + "://127.0.0.1:" + PORT + '/');
|
|
|
|
ch.closeFuture().sync();
|
|
} finally {
|
|
group.shutdownGracefully();
|
|
}
|
|
}
|
|
}
|