Java tutorial
/* * 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 com.gdut.Netty_testing.dongjun.client; import io.netty.bootstrap.Bootstrap; import io.netty.channel.Channel; import io.netty.channel.EventLoopGroup; import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.socket.nio.NioSocketChannel; import io.netty.handler.ssl.SslContext; import io.netty.handler.ssl.SslContextBuilder; import io.netty.handler.ssl.util.InsecureTrustManagerFactory; import java.util.Arrays; import java.util.List; import com.gdut.Netty_testing.t2.server.WorldClockServer; /** * Sends a list of continent/city pairs to a {@link WorldClockServer} to * get the local times of the specified cities. */ public final class Client { static final boolean SSL = System.getProperty("ssl") != null; static final String HOST = System.getProperty("host", "127.0.0.1"); static final int PORT = Integer.parseInt(System.getProperty("port", "8463")); static final List<String> CITIES = Arrays .asList(System.getProperty("cities", "Asia/Seoul,Europe/Berlin,America/Los_Angeles").split(",")); public static void main(String[] args) throws Exception { // Configure SSL. final SslContext sslCtx; if (SSL) { sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build(); } else { sslCtx = null; } EventLoopGroup group = new NioEventLoopGroup(); try { Bootstrap b = new Bootstrap(); b.group(group).channel(NioSocketChannel.class).handler(new ClientInitializer(sslCtx)); // Make a new connection. Channel ch = b.connect(HOST, PORT).sync().channel(); ch.writeAndFlush("108B01008C163543653432532432"); // Get the handler instance to initiate the request. // ClientHandler handler = ch.pipeline().get(ClientHandler.class); // Request and get the response. // List<String> response = handler.getLocalTimes(CITIES); // Close the connection. ch.close(); // Print the response at last but not least. } finally { group.shutdownGracefully(); } } }