网络编程之TCP编程案例

需求:请上传张图片到服务器。

　　客户端：

public static void main(String[] args) {
		System.out.println("客户端启动。。。");
		try {
			Socket socket=new Socket("127.0.0.1",8000);
			
			File file=new File("d:\\sxt2019\\danta.jpg");
			
			FileInputStream fileInputStream=new FileInputStream(file);
			OutputStream outputStream=socket.getOutputStream();
			
			
			byte[] buf=new byte[512];
			int len;
			while((len=fileInputStream.read(buf))!=-1){
				outputStream.write(buf, 0, len);
			}
			
		
			fileInputStream.close();
			outputStream.close();
			
		} catch (UnknownHostException e) {
			
			e.printStackTrace();
		} catch (IOException e) {
			
			e.printStackTrace();
		}
		
	}

　　

　　服务器：

public static void main(String[] args) {
		System.out.println("服务器启动。。。");
		try {
			ServerSocket serverSocket=new ServerSocket(8000);
			Socket accept = serverSocket.accept();
			
			InputStream inputStream=accept.getInputStream();
			
			File file=new File("d:\\sxt2019\\abc\\danta.jpg");
			FileOutputStream fileOutputStream=new FileOutputStream(file);
			
			int len;
			byte[] buf=new byte[512];
			while((len=inputStream.read(buf))!=-1){
				fileOutputStream.write(buf, 0, len);
			}
			
			
			inputStream.close();
			fileOutputStream.close();
			
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}