网络编程-TCP程序实例（简单上传图片）

package netTest;

/*
* 客户端：
*     1.服务端点
*  2.读取客户端已有的图片数据
*  3.通过socket输出流将数据发给服务端
*  4.读取服务端的反馈信息
*  5.关闭。
*
*/
import java.io.*;
import java.net.*;
import java.util.concurrent.SynchronousQueue;
public class Client {
public static void main(String[] args) throws Exception {
Socket s = new Socket(InetAddress.getLocalHost(),6333);
FileInputStream fis = new FileInputStream("1.jpg");
OutputStream out = s.getOutputStream();
byte[] buf = new byte[1024];
int len = 0;
while((len = fis.read(buf))!=-1){
out.write(buf,0,len);
}
// 告诉服务端数据以写完
s.shutdownOutput();
InputStream in = s.getInputStream();
byte[] bufIn =new byte[1024];
int num = in.read(bufIn);
System.out.println(new String(bufIn,0,num));
fis.close();
s.close();
}
}

package netTest;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {

public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
ServerSocket ss = new ServerSocket(6333);
// 得到客户端对象
Socket s = ss.accept();
InputStream in = s.getInputStream();
FileOutputStream fos = new FileOutputStream("2.jpg");
byte[] buf = new byte[1024];
int len = 0;
while((len = in.read(buf))!=-1){
fos.write(buf,0,len);
}
OutputStream out = s.getOutputStream();
out.write("上传成功".getBytes());
out.close();
s.close();
ss.close();
}

}