java使用tcp协议客户端向服务端发送文件（上传文件）

代码展示

其实上传文件只是在tcp点对点传输文本的基础上做了一些改进，大家可以点击这里参考java使用tcp协议实现点对点传输案例

客户端

package com.java.study;

import java.net.*;
import java.io.*;
import java.util.*;

public class client {
    public static void main(String[] args) throws IOException {
        InetAddress inetAddress=InetAddress.getLocalHost();
        Socket socketclient=new Socket(inetAddress,8888);
        BufferedInputStream bis=new BufferedInputStream(new FileInputStream("f:\target/java2/java3/java4.txt"));
        OutputStream os=socketclient.getOutputStream();
        BufferedOutputStream bos=new BufferedOutputStream(os);
        int input=-1;
        while((input=bis.read())!=-1){
            bos.write(input);
        }
        bos.flush();
        socketclient.shutdownOutput();//本次流结束标识
        bos.close();
        os.close();
        bis.close();
        socketclient.close();
    }
}

服务端

package com.java.study;

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

public class server {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket=new ServerSocket(8888);
        Socket socketatclient=serverSocket.accept();
        InputStream is=socketatclient.getInputStream();
        BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(new File("f:\upload.md")));
        BufferedInputStream bis=new BufferedInputStream(is);
        int input=-1;
        while((input=bis.read())!=-1){
            bos.write(input);
        }
        if (bis!=null){
            bis.close();
        }
        if (bos!=null){
            bos.flush();
            bos.close();
        }
        if (is!=null){
            is.close();
        }
        if(socketatclient!=null){
            socketatclient.close();
        }
        if (serverSocket!=null){
            serverSocket.close();
        }

    }
}