nettyTest.http.HttpHelloWorldClient.java Source code

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Here is the source code for nettyTest.http.HttpHelloWorldClient.java

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/*
 * Copyright 2012 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 nettyTest.http;

import io.netty.bootstrap.Bootstrap;
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.NioSocketChannel;
import io.netty.handler.codec.http.*;
import io.netty.handler.codec.http.cookie.ClientCookieEncoder;
import io.netty.handler.codec.http.cookie.DefaultCookie;

import java.net.URI;

public final class HttpHelloWorldClient {

    static final String URL = System.getProperty("url", "http://127.0.0.1:8902/hello");

    public static void main(String[] args) throws Exception {
        URI uri = new URI(URL);
        String scheme = uri.getScheme() == null ? "http" : uri.getScheme();
        String host = uri.getHost() == null ? "127.0.0.1" : uri.getHost();
        int port = uri.getPort();

        if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)) {
            System.err.println("Only HTTP(S) is supported.");
            return;
        }

        // Configure the client.
        EventLoopGroup group = new NioEventLoopGroup();
        try {
            Bootstrap b = new Bootstrap();
            b.group(group).channel(NioSocketChannel.class).option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 2000)
                    .handler(new HttpHelloWorldClientInitializer());

            // Make the connection attempt.
            Channel ch = b.connect(host, port).sync().channel();

            // Prepare the HTTP request.
            HttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET,
                    uri.getRawPath());
            request.headers().set(HttpHeaders.Names.HOST, host);
            request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
            request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);

            // Set some example cookies.
            request.headers().set(HttpHeaders.Names.COOKIE, ClientCookieEncoder.LAX
                    .encode(new DefaultCookie("my-cookie", "foo"), new DefaultCookie("another-cookie", "bar")));

            // Send the HTTP request.
            ch.writeAndFlush(request);

            // Wait for the server to close the connection.
            ch.closeFuture().sync();
        } finally {
            // Shut down executor threads to exit.
            group.shutdownGracefully();
        }
    }
}