Java内容重新整理删除过期的东西

Java/JavaDemo/codedemo/io/MultiThreadEchoServer.java

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+package cn.aofeng.demo.io;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * 多线程网络echo服务。每接收到一个新连接都新建一个线程处理，连接关闭后线程随之销毁。
+ * 
+ * @author <a href="mailto:aofengblog@163.com">NieYong</a>
+ */
+public class MultiThreadEchoServer {
+
+    private final static Logger logger = Logger.getLogger(MultiThreadEchoServer.class.getName());
+    
+    /**
+     * @param args [0]-监听端口
+     */
+    public static void main(String[] args) {
+        if (args.length != 1) {
+            System.err.println("无效的参数。使用示例：");
+            System.err.println("    java cn.aofeng.demo.io.MultiThreadEchoServer 9090");
+            System.exit(-1);
+        }
+        
+        int port = Integer.parseInt(args[0]);
+        ServerSocket serverSocket = null;
+        try {
+            serverSocket = new ServerSocket();
+            serverSocket.bind(new InetSocketAddress(port));
+            if (logger.isLoggable(Level.INFO)) {
+                logger.info("多线程网络echo服务启动完毕，监听端口：" +port);
+            }
+            while (true) {
+                // 接收新的客户端连接
+                Socket socket = serverSocket.accept();
+                if (logger.isLoggable(Level.INFO)) {
+                    logger.info("收到一个新的连接，客户端IP："+socket.getInetAddress().getHostAddress()+"，客户端Port："+socket.getPort());
+                }
+                
+                // 新建一个线程处理Socket连接
+                Thread thread = new Thread(new Worker(socket));
+                thread.start();
+            }
+        } catch (IOException e) {
+            logger.log(Level.SEVERE, "处理网络连接出错", e);
+        }
+    }
+
+}

Java/JavaDemo/codedemo/io/ThreadPoolEchoServer.java

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+package cn.aofeng.demo.io;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * 线程池网络echo服务。每接收到一个新连接都由线程池中的空闲线程处理，连接关闭后释放线程（不会销毁线程，仍在线程池中）。
+ * 
+ * @author <a href="mailto:aofengblog@163.com">NieYong</a>
+ */
+public class ThreadPoolEchoServer {
+
+    private final static Logger logger = Logger.getLogger(MultiThreadEchoServer.class.getName());
+    
+    /**
+     * @param args [0]-监听端口
+     */
+    public static void main(String[] args) {
+        if (args.length != 1) {
+            System.err.println("无效的参数。使用示例：");
+            System.err.println("    java cn.aofeng.demo.io.ThreadPoolEchoServer 9090");
+            System.exit(-1);
+        }
+        
+        int port = Integer.parseInt(args[0]);
+        ExecutorService threadpool = Executors.newFixedThreadPool(5);
+        ServerSocket serverSocket = null;
+        try {
+            serverSocket = new ServerSocket();
+            serverSocket.bind(new InetSocketAddress(port));
+            if (logger.isLoggable(Level.INFO)) {
+                logger.info("线程池网络echo服务启动完毕，监听端口：" +port);
+            }
+            while (true) {
+                // 接收新的客户端连接
+                Socket socket = serverSocket.accept();
+                if (logger.isLoggable(Level.INFO)) {
+                    logger.info("收到一个新的连接，客户端IP："+socket.getInetAddress().getHostAddress()+"，客户端Port："+socket.getPort());
+                }
+                
+                // 将Socket连接交给线程池处理
+                threadpool.submit(new Worker(socket));
+            }
+        } catch (IOException e) {
+            logger.log(Level.SEVERE, "处理网络连接出错", e);
+        }
+    }
+
+}

Java/JavaDemo/codedemo/io/Worker.java

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+package cn.aofeng.demo.io;
+
+import java.io.BufferedReader;
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.Socket;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * 处理客户端Socket连接的工作线程。
+ * 
+ * @author 聂勇 <a href="mailto:aofengblog@163.com">aofengblog@163.com</a>
+ */
+public class Worker implements Runnable {
+
+    private final static Logger logger = Logger.getLogger(MultiThreadEchoServer.class.getName());
+    
+    // 字符集编码
+    private final static String CHAR_SET = "utf8"; 
+    
+    // 行结束符
+    private final static String CRLF = "\r\n";
+    
+    private Socket socket = null;
+    
+    public Worker(Socket socket) {
+        this.socket = socket;
+    }
+    
+    public void setSocket(Socket socket) {
+        this.socket = socket;
+    }
+    
+    public void close(Closeable c) {
+        if (null != c) {
+            try {
+                c.close();
+            } catch (IOException e) {
+                // ingore
+            }
+        }
+    }
+    
+    @Override
+    public void run() {
+        if (null == socket || socket.isClosed()) {
+            logger.warning("无效的Socket连接：" + socket);
+            return;
+        }
+        
+        String lineEnd = CRLF;
+        try {
+            BufferedReader reader = new BufferedReader(
+                    new InputStreamReader(
+                            socket.getInputStream()));
+            OutputStream outs = socket.getOutputStream(); 
+            String line = null;
+            while ( null != (line = reader.readLine()) ) {
+                // 客户端退出
+                if ("quit".equalsIgnoreCase(line) || "exit".equalsIgnoreCase(line)) {
+                    break;
+                }
+                
+                outs.write(line.getBytes(CHAR_SET));
+                outs.write(lineEnd.getBytes(CHAR_SET));
+            }
+            close(reader);
+            close(outs);
+        } catch (IOException e) {
+            logger.log(Level.SEVERE, "读取网络连接数据出错", e);
+        }
+    }
+    
+}