Java网络编程——通讯作业1

客户端发一张图片,服务端接收图片,并返回
我已收到

//客户端
	@Test
	public void client(){
		 Socket socket=null;
		 OutputStream os =null;
		 InputStream is =null;
		 try {			 
			 socket = new Socket(InetAddress.getByName("127.0.0.1"), 9527);
			 is= new FileInputStream(new File("C:\\Users\\Administrator\\Desktop\\one.jpg"));
			 os = socket.getOutputStream();
//			 os.write("我是客户端".getBytes());
			 byte[] b1 = new byte[1000];
				int len1;
				while ((len1=is.read(b1))!=-1) {
					os.write(b1, 0, len1);
				}
			 
			 //shutdownOutput():显示的告诉服务端发送完毕
             socket.shutdownOutput();
			 //接收服务端发送过来的数据
			 is =socket.getInputStream();
					 
			 byte[] b = new byte[20];
				int len;
				while ((len = is.read(b)) != -1) {
					String str = new String(b, 0, len);
					System.out.println(str);
				}
			 
			 
		} catch (Exception e) {
			e.printStackTrace();
		}finally {
			try {
				socket.close();
				os.close();
				is.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

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