今天为大家分享简单的飞鸽传书程序的开发与制作，目前系统已经完成了初步功能，后续会进一步完善。整个系统界面漂亮，有完整源码，希望大家可以喜欢。喜欢的帮忙点赞和关注。一起编程、一起进步

开发环境

开发语言为Java，开发环境Eclipse或者IDEA都可以。运行主程序，或者执行打开JAR文件即可以运行本程序。

系统框架

利用JDK自带的SWING框架开发，不需要安装第三方JAR包。纯窗体模式，直接运行Main文件即可以。同时带有详细得设计文档。

程序主要功能

运行方法

1 运行AppStart.java文件

2 程序出现飞鸽传书的面板

系统主要功能点

1发送文字信息，收到方会弹出提醒

2 当发送文件的时候，收到放会弹出提醒，显示文件的名字。点击名字的时候，可以下载相应的文件

实现效果

主要代码

package com.ipmsg;import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;public class TCPService {public static final int PORT = 30000;private static final int BUFF_SIZE = 8192;private static Object lock = new Object();private ServerSocket serverSocket;private static boolean isInit = false;private TCPService() throws IOException {serverSocket = new ServerSocket(PORT);SendFileServer server = new SendFileServer();server.start();}public static void init() {synchronized (lock) {if (!isInit) {try {new TCPService();} catch (IOException e) {e.printStackTrace();}}}}private class SendFileServer extends Thread {@Overridepublic void run() {try {while (true) {Socket socket = serverSocket.accept();SendFile st = new SendFile(socket);st.start();}} catch (IOException e) {e.printStackTrace();}}}private class SendFile extends Thread {Socket socket;SendFile(Socket socket) {this.socket = socket;}@Overridepublic void run() {DataInputStream in = null;DataInputStream fin = null;DataOutputStream out = null;try {int len = 0;byte[] buff = new byte[BUFF_SIZE];in = new DataInputStream(socket.getInputStream());len = in.read(buff);String filePath = new String(buff, 0, len, "UTF-8");File file = new File(filePath);fin = new DataInputStream(new BufferedInputStream(new FileInputStream(file)));out = new DataOutputStream(socket.getOutputStream());out.writeLong(file.length());out.flush();buff = new byte[BUFF_SIZE];while ((len = fin.read(buff)) > 0) {out.write(buff, 0, len);}out.flush();} catch (IOException e) {e.printStackTrace();} finally {try {if(in != null){in.close();in = null;}if(fin != null){fin.close();fin = null;}if(out != null){out.close();out = null;}socket.close();} catch (IOException e) {e.printStackTrace();}}}}}