TCP实现文件上传

package com.jfy.webCode01;

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 TcpServerFile {
    public static void main(String[] args) throws Exception  {
        //1.创建连接
        ServerSocket  sk = new ServerSocket(8081);
        //2.监听客户端连接
        Socket accept = sk.accept(); //阻塞式监听，会一直等待客户端连接
        //3.获取输入流
        InputStream is = accept.getInputStream();
        //4.文件输出流
        FileOutputStream fos = new FileOutputStream(new File("receive.jpg"));
        byte[] buffer = new byte[1010];
        int length;
    while ((length=is.read(buffer))!=-1){
        fos.write(buffer,0,length);

    }
        OutputStream os = accept.getOutputStream();
    os.write("我接受完毕了，你可以断开了".getBytes());
        //5.关闭资源
        os.close();
        fos.close();
        is.close();
        accept.close();
        sk.close();
    }
}

package com.jfy.webCode01;

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

public class TcpOpenFille {
    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"), 8081);
        //2.创建一个输出流
        OutputStream OS = socket.getOutputStream();
        //3.读取文件.
        FileInputStream fis = new FileInputStream(new File("C:\\Users\\ichi1\\Desktop\\PT\\1645771807581.jpg"));
        //4.写出文件
        byte[] buffer= new byte[1010];
        int length;
        while ((length = fis.read(buffer))!=-1){
            OS.write(buffer,0,length);
        }
        //通知服务器，我已经结束了
        socket.shutdownOutput();
        //确定服务器接收完毕，才能够断开连接
        InputStream inputStream = socket.getInputStream();
        //管道流
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        byte[] buffer01 = new byte[1020];
        int length01;
        while ((length01=inputStream.read(buffer01))!=-1){
            baos.write(buffer01,0,length01);
        }
        System.out.println(baos.toString());
        //5.关闭资源
        inputStream.close();
        baos.close();
        fis.close();
        OS.close();
        socket.close();
    }
}