Java Socket怎樣實現(xiàn)遠(yuǎn)程通信

Java Socket是實現(xiàn)遠(yuǎn)程通信的一種方式，它基于TCP/IP協(xié)議。以下是一個簡單的Java Socket遠(yuǎn)程通信示例，包括客戶端和服務(wù)器端：

1. 服務(wù)器端代碼：

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

public class Server {
    public static void main(String[] args) throws IOException {
        int port = 12345;
        ServerSocket serverSocket = new ServerSocket(port);
        System.out.println("Server is listening on port " + port);

        Socket socket = serverSocket.accept();
        System.out.println("Client connected");

        InputStream inputStream = socket.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        String message = reader.readLine();
        System.out.println("Received message: " + message);

        OutputStream outputStream = socket.getOutputStream();
        PrintWriter writer = new PrintWriter(outputStream, true);
        writer.println("Hello from server");

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

2. 客戶端代碼：

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

public class Client {
    public static void main(String[] args) throws IOException {
        String serverAddress = "localhost";
        int port = 12345;

        Socket socket = new Socket(serverAddress, port);
        System.out.println("Connected to server");

        OutputStream outputStream = socket.getOutputStream();
        PrintWriter writer = new PrintWriter(outputStream, true);
        writer.println("Hello from client");

        InputStream inputStream = socket.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        String message = reader.readLine();
        System.out.println("Received message: " + message);

        socket.close();
    }
}

在這個示例中，服務(wù)器端監(jiān)聽指定端口（12345），當(dāng)客戶端連接時，服務(wù)器接收客戶端發(fā)送的消息，并向客戶端發(fā)送回復(fù)?？蛻舳诉B接到服務(wù)器后，發(fā)送一條消息給服務(wù)器，然后接收服務(wù)器的回復(fù)。

要運行這個示例，首先啟動服務(wù)器端代碼，然后啟動客戶端代碼。注意，如果客戶端和服務(wù)器端運行在不同的機器上，需要將服務(wù)器地址更改為服務(wù)器的IP地址。