JavaSocket怎么传输对象
这篇文章给大家介绍Java Socket怎么传输对象，内容非常详细，感兴趣的小伙伴们可以参考借鉴，希望对大家能有所帮助。
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前面两篇文章介绍了怎样建立Java Socket通信，这一篇说一下怎样使用Java Socket来传输对象。
首先需要一个普通的对象类，由于需要序列化这个对象以便在网络上传输，所以实现java.io.Serializable接口就是必不可少的了，如下：
package com.googlecode.garbagecan.test.socket.sample3; public class User implements java.io.Serializable { private static final long serialVersionUID = 1L; private String name; private String password; public User() { } public User(String name, String password) { this.name = name; this.password = password; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }对于Server端的代码，代码中分别使用了ObjectInputStream和ObjectOutputStream来接收和发送socket中的InputStream和OutputStream，然后转换成Java对象，如下：
package com.googlecode.garbagecan.test.socket.sample3; import java.io.*; import java.net.ServerSocket; import java.net.Socket; import java.util.logging.Level; import java.util.logging.Logger; public class MyServer { private final static Logger logger = Logger.getLogger(MyServer.class.getName()); public static void main(String[] args) throws IOException { ServerSocket server = new ServerSocket(10000); while (true) { Socket socket = server.accept(); invoke(socket); } } private static void invoke(final Socket socket) throws IOException { new Thread(new Runnable() { public void run() { ObjectInputStream is = null; ObjectOutputStream os = null; try { is = new ObjectInputStream(new BufferedInputStream(socket.getInputStream())); os = new ObjectOutputStream(socket.getOutputStream()); Object obj = is.readObject(); User user = (User)obj; System.out.println("user: " + user.getName() + "/" + user.getPassword()); user.setName(user.getName() + "_new"); user.setPassword(user.getPassword() + "_new"); os.writeObject(user); os.flush(); } catch (IOException ex) { logger.log(Level.SEVERE, null, ex); } catch(ClassNotFoundException ex) { logger.log(Level.SEVERE, null, ex); } finally { try { is.close(); } catch(Exception ex) {} try { os.close(); } catch(Exception ex) {} try { socket.close(); } catch(Exception ex) {} } } }).start(); } }Client也和Server端类似，同样使用ObjectOutputStream和ObjectInputStream来处理，如下：
package com.googlecode.garbagecan.test.socket.sample3; import java.io.BufferedInputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.net.Socket; import java.util.logging.Level; import java.util.logging.Logger; public class MyClient { private final static Logger logger = Logger.getLogger(MyClient.class.getName()); public static void main(String[] args) throws Exception { for (int i = 0; i < 100; i++) { Socket socket = null; ObjectOutputStream os = null; ObjectInputStream is = null; try { socket = new Socket("localhost", 10000); os = new ObjectOutputStream(socket.getOutputStream()); User user = new User("user_" + i, "password_" + i); os.writeObject(user); os.flush(); is = new ObjectInputStream(new BufferedInputStream(socket.getInputStream())); Object obj = is.readObject(); if (obj != null) { user = (User)obj; System.out.println("user: " + user.getName() + "/" + user.getPassword()); } } catch(IOException ex) { logger.log(Level.SEVERE, null, ex); } finally { try { is.close(); } catch(Exception ex) {} try { os.close(); } catch(Exception ex) {} try { socket.close(); } catch(Exception ex) {} } } } }测试上面的代码，首先运行Server类，然后运行Client类，就可以分别在Server端和Client端控制台看到接收到的User对象实例了。
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