netty通信框架_王国风云2控制台代码

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写在前面

用我的双手成就你的梦想。记录Netty权威指南Demo代码并分享出来，帮助读者快速完成Demo。

TimeServer代码

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

public class TimeServer {
	public static void main(String[] args) throws IOException {
		int port = 8081;
		if (args != null && args.length > 0) {
			try {
				port = Integer.valueOf(args[0]);
			} catch (NumberFormatException e) {

			}
		}
		ServerSocket server = null;
		try {
			server = new ServerSocket(port);
			System.out.println("The time server is start in port : " + port);
			Socket socket = null;
			while (true) {
				socket = server.accept();
				new Thread(new TimeServerHandler(socket)).start();
			}
		} finally {
			if (server != null) {
				System.out.println("The time server close");
				server.close();
				server = null;
			}
		}
	}
}

TimeServerHandler代码

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class TimeServerHandler implements Runnable {
	
	private  Socket socket;
	
	public TimeServerHandler(Socket socket) {
		this.socket = socket;
	}
	
	public void run() {
		BufferedReader in = null;
		PrintWriter out = null;
		try {
			in = new BufferedReader(new InputStreamReader(this.socket.getInputStream()));
			out = new PrintWriter(socket.getOutputStream(), true);
			String currentTime = null;
			String body = null;
			while (true) {
				body = in.readLine();
				if (body == null) {
					break;
				}
				System.out.println("The time server receive order : " + body);
				currentTime = "QUERY TIME ORDER".equalsIgnoreCase(body) ? new java.util.Date(System.currentTimeMillis()).toString() : "BAD ORDER";
				out.println(currentTime);
			}
		} catch (Exception e) {
			if (in != null) {
				try {
					in.close();
				} catch (Exception e2) {
					e2.printStackTrace();
				}
			}
			if (out != null) {
				out.close();
				out = null;
			}
			if (this.socket != null) {
				try {
					this.socket.close();
					
				} catch (Exception e2) {
					e2.printStackTrace();
				}
				this.socket = null;
			}
		}
	}
}

TimeClient代码

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class TimeClient {

	public static void main(String[] args) {
		int port = 8081;
		if (args != null && args.length > 0) {
			try {
				port = Integer.valueOf(args[0]);
			} catch (NumberFormatException e) {
				e.printStackTrace();
			}
		}
		Socket socket = null;
		BufferedReader in = null;
		PrintWriter out = null;
		try {
			socket = new Socket("127.0.0.1", port);
			in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
			out = new PrintWriter(socket.getOutputStream(), true);
			out.println("QUERY TIME ORDER");
			System.out.println("Send order 2 server succeed.");
			String resp = in.readLine();
			System.out.println("Now is : " + resp);
		} catch (Exception e) {
			
		} finally {
			if (out != null) {
				out.close();
				out = null;
			}
			
			if (in != null) {
				try {
					in.close();
				} catch (Exception e) {
					e.printStackTrace();
				}
				in = null;
			}
			
			if (socket != null) {
				try {
					socket.close();
				} catch (Exception e) {
					e.printStackTrace();
				}
				socket = null;
			}
		}
	}

}

说明

代码中的package要自行加入，运行结果与书本一致。