[网络协议]简单模拟TCP文件传输(上传)

• 服务端代码如下

package com.ljy.inernet.tcpTest;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class ServerDemo02 {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket=new ServerSocket(7777);
        Socket socket=serverSocket.accept();
        InputStream inputStream = socket.getInputStream();

        FileOutputStream fos=new FileOutputStream(new File("xxx.docx"));
        byte[] buffer=new byte[1024];
        int len;
        while ((len=inputStream.read(buffer))!=-1){
            fos.write(buffer,0,len);
        }

        fos.close();
        inputStream.close();
        socket.close();
        serverSocket.close();
    }
}

• 客户端代码如下

package com.ljy.inernet.tcpTest;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;

public class ClientDemo02 {
    public static void main(String[] args) throws IOException {
        Socket socket=new Socket("127.0.0.1",7777);
        OutputStream outputStream = socket.getOutputStream();

        FileInputStream fis=new FileInputStream(new File("E:\\IdeaProject\\internet\\改善读后感.docx"));
        byte[] buffer=new byte[1024];
        int len;
        while ((len=fis.read(buffer))!=-1){
            outputStream.write(buffer,0,len);
        }

        outputStream.close();
        fis.close();
        socket.close();
    }

}