Java Socket怎么傳輸對象

這篇文章給大家介紹Java Socket怎么傳輸對象，內容非常詳細，感興趣的小伙伴們可以參考借鑒，希望對大家能有所幫助。

前面兩篇文章介紹了怎樣建立Java Socket通信，這一篇說一下怎樣使用Java Socket來傳輸對象。

首先需要一個普通的對象類，由于需要序列化這個對象以便在網絡上傳輸，所以實現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;      }  }

對于Server端的代碼，代碼中分別使用了ObjectInputStream和ObjectOutputStream來接收和發送socket中的InputStream和OutputStream，然后轉換成Java對象，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端類似，同樣使用ObjectOutputStream和ObjectInputStream來處理，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) {}              }          }      }  }

測試上面的代碼，首先運行Server類，然后運行Client類，就可以分別在Server端和Client端控制臺看到接收到的User對象實例了。

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