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黑马程序员——网络编程之CTP传输

2024-07-04 17:17:32   226人阅读

TCP传输
Socket和ServerSocket，实现了两台机器间的套接字端点，绑定本机IP地址。建立客户端和服务端，客户端对应的对象是Socket，服务端对应的对象是ServerSocket。
        //客户端部分
public class ClientA {
private String filePath ;
public String getFilePath() {return filePath;}
public void setFilePath(String filePath ) { this. filePath = filePath;}
public String getHost() {return host;}
public void setHost(String host ) { this. host = host;}
public int getPort() {return port; }
public void setPort(int port) {this.port = port ;}
private String host ;
private int port;
           public static void main (String[] args) {
                    // TODO Auto-generated method stub
ClientA ca=new ClientA();
ca.setHost ("127.0.0.1") ;
ca.setPort (9527) ;
ca.setFilePath ("d:\\") ;
ca.upLoad ("N1.mp3") ;
           }
           //上传方法
           private void upLoad(String fileName ) {
                    // TODO Auto-generated method stub
                   Socket s =null;
                    try {
                             s =new Socket(host ,port );
                             File fi =new File(filePath +fileName );
                             System .out.println( "文件大小:" +fi .length ());
                             FileInputStream fis =new FileInputStream(new File(filePath+fileName)) ;
                             OutputStream os =s .getOutputStream ();
                              int len;
                              byte[] buff =new byte[ 1024];
                              while((len =fis .read (buff)) >0 ){os.write( buff, 0, len);}
                             s .shutdownOutput ();
                              //获取服务器发来的消息。三次握手规则
                             InputStream ip =s .getInputStream ();
                              byte[] buffser =new byte[ 1024];
                             System .out.println( new String(buffser,0,ip.read( buffser)));
                              //关闭资源
                             fis .close ();
                             os .close ();
                             ip .close ();
                             s .close ();
                    } catch (Exception e ) {
                              // TODO: handle exception
                             e .printStackTrace ();
                    }
           }
 
}
//服务端部分，用了服务端继承Thread的办法
public class ServerA extends Thread {
 
           public static void main (String[] args) {
                    // TODO Auto-generated method stub
                   ServerA sa =new ServerA();
                   sa .start ();
           }
           @Override
           public void run(){
 
                    try {
                             ServerSocket ss=new ServerSocket (9527) ;
                             Socket s =ss .accept ();
                              //养成良好习惯，获取对方 ip并记录下来
                             String ip =s .getInetAddress (). getHostAddress();
                             System .out.println( ip+ ">>>conected");
                             File file =new File(ip +".mp3" );
                              //将客户端上传的资料写到存储区
                             FileOutputStream fis =new FileOutputStream(new File("d:\\"+ file));
                             InputStream ips =s .getInputStream ();
                              int len;
                              byte[] buff =new byte[ 1024];
                              while((len =ips .read (buff)) !=-1 )
                                      fis .write (buff,0,len) ;
                              //通知客户端，上传成功
                             OutputStream ops =s .getOutputStream ();
                             ops .write ("成功上传". getBytes());
                              //养成随手关闭资源的习惯
                             ops .close ();
                             fis .close ();
                             ips .close ();
                             s .close ();
                    } catch (Exception e ) {
                              // TODO: handle exception
                             e .printStackTrace ();
                    }
           }
 
}


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