Java网络编程TCP实现文件上传功能

本文实例为大家分享了Java网络编程TCP实现文件上传的具体代码，供大家参考，具体内容如下

上一篇博客，用网络编程TCP 实现聊天，这次实现文件上传。

客户端：

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									package com.kuang.lesson02;

									import java.io.*;

									import java.net.InetAddress;

									import java.net.Socket;

									//客户端

									public class TcpClientDemo2 {

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

									        //1、创建一个Socket连接

									        Socket socket = new Socket(InetAddress.getByName("127.0.0.1"),9000);

									        //2、创建一个输出流

									        OutputStream os = socket.getOutputStream();

									        //3、读取文件

									        FileInputStream fis = new FileInputStream(new File("sendFile.jpg"));

									        //4、写出文件

									        byte[] buffer = new byte[1024];

									        int len;

									        while ((len=fis.read(buffer))!=-1) {

									            os.write(buffer,0,len);

									        }

									        //通知服务器，我已经结束了

									        socket.shutdownOutput();

									        //确定服务器接收完毕，才能断开连接

									        InputStream inputStream = socket.getInputStream();

									        //String byte[]

									        ByteArrayOutputStream baos = new ByteArrayOutputStream();

									        byte[] buffer2 = new byte[1024];

									        int len2;

									        while ((len2=inputStream.read(buffer2))!=-1) {

									            baos.write(buffer2,0,len2);

									        }

									        System.out.println(baos.toString());

									        //5、关闭资源

									        fis.close();

									        os.close();

									        socket.close();

									    }

									}

服务端：

				?

									package com.kuang.lesson02;

									import java.io.*;

									import java.net.ServerSocket;

									import java.net.Socket;

									//服务端

									public class TcpServerDemo02 {

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

									        //1、创建服务

									        ServerSocket serverSocket = new ServerSocket(9000);

									        //2、监听客户端的连接

									        //阻塞式监听，会一直等待客户端连接

									        Socket socket = serverSocket.accept();

									        //3、获取输入流

									        InputStream is = socket.getInputStream();

									        //4、文件输出

									        FileOutputStream fos = new FileOutputStream(new File("receive.jpg"));

									        byte[] buffer = new byte[1024];

									        int len;

									        while ((len=is.read(buffer))!=-1) {

									            fos.write(buffer,0,len);

									        }

									        //通知客户端我接收完毕

									        OutputStream os = socket.getOutputStream();

									        os.write("我接收完毕了，你可以断开了".getBytes());

									        //5、关闭资源

									        fos.close();

									        is.close();

									        socket.close();

									        serverSocket.close();

									    }

									}