Java Tcp文件传输---转载

/**

客户端

1、服务端点

2、读取客户端已有的文件数据

3、通过socket输出流发给服务端

4、读取服务端反馈信息

5、关闭

**/

import java.io.*;

import java.net.*;

class  UploadClient

{

public static void main(String[] args) throws Exception

{

Socket s = new Socket("127.0.0.1",4434);

FileInputStream fis = new FileInputStream("D://2.png");

OutputStream out = s.getOutputStream();

byte[] buf = new byte[1024];

int len = 0;

while((len = fis.read(buf))!=-1)

{

out.write(buf,0,len);

}

//数据已经完成的时候执行shutdownOutput

s.shutdownOutput();

InputStream is = s.getInputStream();

byte[] bufin = new byte[1024];

int lenin = is.read(bufin);

System.out.println(new String(bufin,0,lenin));

fis.close();

s.close();

}

}

/**

服务器端

*/

class  UploadServer

{

public static void main(String[] args)throws Exception

{

ServerSocket ss = new ServerSocket(4434);

Socket s = ss.accept();

InputStream is = s.getInputStream();

FileOutputStream fos = new FileOutputStream("C://test.jpg");

byte[] buf = new byte[1024];

int len = 0;

while((len = is.read(buf))!=-1)

{

fos.write(buf,0,buf.length);

}

OutputStream out = s.getOutputStream();

out.write("上传成功".getBytes());

fos.close();

s.close();

ss.close();

}

}