java socket多线程并发消息读取".properties"文件ip和端口配置

矫情吗；* 2022-08-26 13:10 231阅读 0赞

本题考察了socket通信、多线程并发、读取文件，io流、面向对象封装，继承、类型转换等知识点。

client代码：

public void start(){
    		Socket socket;
    		String ss="";
    		//调用同一包内ReadProperties类的ReadProperties（）方法
    		ReadProperties rp=new ReadProperties();
    		rp.ReadProperties();
    		String IP=rp.getIP();//从a.properties中获得ip
    		//从a.properties中获得port，将String类型强转成int类型
    		int port=Integer.parseInt(rp.getPort());
    		try {
    			socket=new Socket(IP,port);
    //			System.out.println("IP="+IP);
    			KeFuduanjie kf=new KeFuduanjie(socket);//客户端接收消息
    			//客户端发送消息【kfs线程发送消息】
    			KeFuWuFasong kfs = new KeFuWuFasong(socket);
    			kfs.setName("kfs");
    			ClientReadFile crf=new ClientReadFile(socket);//从硬盘读取文件
    			kf.start();
    			kfs.start();
    			crf.start();
    		} catch (UnknownHostException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		} catch (IOException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}
    		
    	}
    }
    	class KeFuduanjie extends Thread{
    		Socket socket;
    		String ss;
    		BufferedReader br;
    		public KeFuduanjie(Socket socket){
    			this.socket=socket;
    			try {
    				br=new BufferedReader(new InputStreamReader(socket.getInputStream()));
    			} catch (IOException e) {
    				// TODO Auto-generated catch block
    				e.printStackTrace();
    			}
    		}
    		//负责接收服务端来的消息
    		public void run(){
    			while(true){
    				try {
    					ss=br.readLine();
    					System.out.println(socket.getLocalPort()+"服务器---->客服端： "+ss);
    				} catch (IOException e) {
    					// TODO Auto-generated catch block
    					e.printStackTrace();
    				}
    			}
    		}
    	}
    	class KeFuWuFasong extends Thread{
    		Socket socket;
    		BufferedWriter bw;
    		BufferedReader br;
    //		OutputStream os;
    //		String word;
    		public KeFuWuFasong(Socket socket){
    			this.socket=socket;
    			try {
    //				 os=socket.getOutputStream();//2将socket转换成IO流 
    				br=new BufferedReader(new InputStreamReader(System.in));//不从控制台输入怎样写死？
    				bw=new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
    //				word="hi";
    //				Thread.sleep(2000);
    			} catch (IOException e) {
    				// TODO Auto-generated catch block
    				e.printStackTrace();
    			} 
    		}
    		public void run(){
    			while(true){
    				try {
    //					os.write(word.getBytes());
    					bw.write(br.readLine());
    					bw.newLine();
    					bw.flush();//或用bw.close();
    				} catch (IOException e) {
    					// TODO Auto-generated catch block
    					e.printStackTrace();
    				}
    				
    			}
    		}
    	}
    	class ClientReadFile extends Thread{
    		Socket socket;
    		DataInputStream dis;
    		DataOutputStream dos;
    		public ClientReadFile(Socket socket){
    			this.socket=socket;
    			try {
    				dis=new DataInputStream(new FileInputStream("F:/commons-logging.properties"));
    				dos=new DataOutputStream(socket.getOutputStream());
    			} catch (IOException e) {
    				// TODO Auto-generated catch block
    				e.printStackTrace();
    			}
    		}
    		public void run(){
    //			while(true){
    				try {
    
    					Thread.sleep(10000);
    					System.out.println("wait 10s");
    					int i=0;
    					   byte[] b=new byte[1024];
    					   String s;
    					   while((i=dis.read(b))>0){
    					    s=new String(b,"gbk");
    					    dos.write(b,0,i);
    					    System.out.println("读取的文件信息："+s);
    					   }
    
    					dos.flush();//或用bw.close();
    					dis.close();
    				} catch (Exception e) {
    					// TODO Auto-generated catch block
    					e.printStackTrace();
    				}
    				
    //			}
    		}

server端代码：

public class Server {
    	public static void main(String[] args) {
    		Server server=new Server();
    		server.start();
    	}
    	public void start(){
    		ReadProperties rp=new ReadProperties();
    		rp.ReadProperties();
    		int port=Integer.parseInt(rp.getPort());//2014-4-9将String类型强转成int类型
    		try {
    			ServerSocket ss=new ServerSocket(port);
    			Socket socket = null;
    			ServerToClientThread stct = null;
    			while(true){
    				socket = ss.accept();   //迎接（接收）客户端的Socket访问
    				stct = new ServerToClientThread(socket);  //分配一个新线程负责和信赖的Socket沟通
    				stct.start();	
    				}
    		} catch (IOException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}
    	}
    }
    class ServerToClientThread extends Thread{
    	Socket socket;
    	BufferedReader br;
    	BufferedWriter bw;
    	String s;
    	//建立的同时，和客户端的Socket建立输入、输出流
    	public ServerToClientThread(Socket socket){	
    		this.socket = socket;
    		try {
    			bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
    			} catch (IOException e) {
    				e.printStackTrace();
    				}
    		}
    	public void run(){
    		ServerReceiveFromClient srfc = new ServerReceiveFromClient(socket);
    		srfc.start();
    		while(true){
    			try {
    				bw.write("欢迎光临。");
    				bw.newLine();
    				bw.flush();
    				Thread.sleep(10*1000);
    				} catch (IOException e) {
    					e.printStackTrace();
    					} catch (InterruptedException e) {
    						e.printStackTrace();
    						}
    			}
    		}
    	}
    class ServerReceiveFromClient extends Thread{
    	Socket socket;
    	BufferedReader br;
    	String s;
    	public ServerReceiveFromClient(Socket socket){
    		this.socket = socket;
    		try {
    			br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
    			} catch (IOException e) {
    				e.printStackTrace();
    				}
    		}
    	public void run(){
    		while(true){
    			try {
    				s = br.readLine();
    				System.out.println("客户端:"+socket.getInetAddress().getHostAddress()+"发送了:"+s);
    				} catch (Exception e) {
    					e.printStackTrace();
    					}
    			}
    		}
    	}

properties文件内容：

ip=127.0.0.1  
port=8080