TCP--上传图片

需求：上传图片

客户端：

1、服务器端点；

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、读取服务端反馈信息；

5、关闭资源。

import java.awt.Button;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;

public class PictureClient {

	public static void main(String[] args) throws UnknownHostException, IOException {
		Socket socket=new Socket("10.1.9.34",10008);
		
		FileInputStream fis=new FileInputStream("C:\\Users\\Administrator\\Desktop\\picture\\1.jpg");
		
		OutputStream out=socket.getOutputStream();
		
		byte[] buf=new byte[1024];
		int len=0;
		while((len=fis.read(buf))!=-1){
			out.write(buf,0,len);
		}
		
		//告诉服务端数据已写完
		socket.shutdownOutput();
		
		InputStream in=socket.getInputStream();
		
		byte[] bufIn=new byte[1024];
		int num=in.read(bufIn);
		System.out.println(new String(bufIn,0,num));
		
		fis.close();
		socket.close();
	}
}

服务端：

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 PictureServer {

	public static void main(String[] args) throws IOException {
		ServerSocket serverSocket=new ServerSocket(10008);
		
		Socket socket=serverSocket.accept();
		
		String ip=socket.getInetAddress().getHostAddress();
		System.out.println(ip+"......connected");
		
		InputStream in=socket.getInputStream();
		
		FileOutputStream fos=new FileOutputStream("server.png");
		
		byte[] buf=new byte[1024];
		int len=0;
		while((len=in.read())!=-1){
			fos.write(buf,0,len);
		}
		
		OutputStream out=socket.getOutputStream();
		out.write("上传成功".getBytes());
		fos.close();
		socket.close();
		serverSocket.close();
	}
}

可以看图片已从C盘上传到E盘

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