TCP文件上传实现

TCP文件上传实现

• 客户端

package com.caster.IP.lesson02;

import java.io.*;
import java.net.InetAddress;
import java.net.Socket;

public class TcpClientDemo02 {
    public static void main(String[] args) throws Exception{
        //1.创建一个Socket链接
        Socket socket = new Socket(InetAddress.getByName("127.0.0.1"),856);
        //2.创建一个输出流
        OutputStream os = socket.getOutputStream();
        //3.读取文件
        FileInputStream fis = new FileInputStream(new File("F:\\IDEAData\\JavaSE\\Java基础语法\\369.jpg"));
        //4.写出文件
        byte[] buffes = new byte[1024];
        int len;
        while ((len = fis.read(buffes))!= -1){
            os.write(buffes,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 isOver = socket.getInputStream();
        //String byte[]
        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        byte[] butter2 = new byte[2014];
        int lens;
        while ((lens=isOver.read(butter2))!=-1){
            baos.write(butter2,0,lens);
        }
        System.out.println(baos.toString());
        //5.关闭资源
        baos.close();
        isOver.close();
        fis.close();
        os.close();
        socket.close();
    }
}

• 服务器

  package com.caster.IP.lesson02;
  
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.net.ServerSocket;
  import java.net.Socket;
  
  public class TcpServerDemo02 {
      public static void main(String[] args) throws Exception{
          //1.创建服务
          ServerSocket serverSocket = new ServerSocket(856);
          //2.监听客户端的连接
          Socket socket = serverSocket.accept();//堵塞式监听，会一直等待客户端连接
          //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);
          }
  
          //通知客户端接收完毕
          OutputStream osOver = socket.getOutputStream();
          osOver.write("我接受完毕了，你可以断开了".getBytes());
  
          //关闭资源
          fos.close();
          is.close();
          socket.close();
      }
  }