java网络编程（四）压缩对象传输

来源：互联网发布：windows 进程通信编辑：程序博客网时间：2024/06/16 22:27

对象的压缩存储主要是采用的是GZIPInputStream以及相对应的GZIPOutputStream来实现的，将其中的对象进行压缩后发送到相应的客户端上，代码如下:

package com.sun.net.gzip;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.net.ServerSocket;import java.net.Socket;import java.util.zip.GZIPInputStream;import java.util.zip.GZIPOutputStream;/*** 类名： GzipServer* 包名： com.sun.net.gzip* 作者： Administrator* 时间： 2015年1月26日 下午3:58:40* 描述：*/public class GzipServer {     public static void main(String[] args) throws IOException {         ServerSocket server = new ServerSocket(10000);          while (true) {             Socket socket = server.accept();             socket.setSoTimeout(10 * 1000);             invoke(socket);         }     }      private static void invoke(final Socket socket) throws IOException {         new Thread(new Runnable() {             public void run() {                 GZIPInputStream gzipis = null;                 ObjectInputStream ois = null;                 GZIPOutputStream gzipos = null;                 ObjectOutputStream oos = null;                                  try {                     gzipis = new GZIPInputStream(socket.getInputStream());                     ois = new ObjectInputStream(gzipis);                     gzipos = new GZIPOutputStream(socket.getOutputStream());                     oos = new ObjectOutputStream(gzipos);                      Object obj = ois.readObject();                     User user = (User)obj;                     System.out.println("user: " + user.getName() + "/" + user.getPassword());                      user.setName(user.getName() + "_new");                     user.setPassword(user.getPassword() + "_new");                      oos.writeObject(user);                     oos.flush();                     gzipos.finish();                 } catch (IOException ex) {                      ex.printStackTrace();                } catch(ClassNotFoundException ex) {                     ex.printStackTrace();                } finally {                     try {                         ois.close();                     } catch(Exception ex) {}                     try {                         oos.close();                     } catch(Exception ex) {}                     try {                         socket.close();                     } catch(Exception ex) {}                 }             }         }).start();     } }

客户端程序代码如下:

package com.sun.net.gzip;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.net.InetSocketAddress;import java.net.Socket;import java.net.SocketAddress;import java.util.zip.GZIPInputStream;import java.util.zip.GZIPOutputStream;/** * 类名： GzipClient * 包名： com.sun.net.gzip * 作者： Administrator * 时间： 2015年1月26日 下午4:00:38 * 描述： */public class GzipClient {      public static void main(String[] args) throws Exception {              for ( int i = 0; i < 10; i++) {                  Socket socket = null;                  GZIPOutputStream gzipos = null;                  ObjectOutputStream oos = null;                  GZIPInputStream gzipis = null;                  ObjectInputStream ois = null;                                    try {                      socket = new Socket();                      SocketAddress socketAddress = new InetSocketAddress("localhost" , 10000);                       socket.connect(socketAddress, 10 * 1000);                      socket.setSoTimeout(10 * 1000);                                            gzipos = new GZIPOutputStream(socket.getOutputStream());                      oos = new ObjectOutputStream(gzipos);                      User user = new User( "user_" + i, "password_" + i);                      oos.writeObject(user);                      oos.flush();                      gzipos.finish();                                            gzipis = new GZIPInputStream(socket.getInputStream());                      ois = new ObjectInputStream(gzipis);                      Object obj = ois.readObject();                      if (obj != null) {                          user = (User)obj;                          System. out.println( "user: " + user.getName() + "/" + user.getPassword());                      }                  } catch(IOException ex) {                      ex.printStackTrace();                 } finally {                      try {                          ois.close();                      } catch(Exception ex) {}                      try {                          oos.close();                      } catch(Exception ex) {}                      try {                          socket.close();                      } catch(Exception ex) {}                  }              }          } }

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