在Java中,使用Socket編程實(shí)現(xiàn)遠(yuǎn)程通信主要包括兩個(gè)步驟:創(chuàng)建客戶端(Client)和服務(wù)器端(Server)。下面是一個(gè)簡單的示例,展示了如何使用Java Socket編程實(shí)現(xiàn)客戶端和服務(wù)器之間的通信。
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();
}
}
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(gè)示例中,服務(wù)器端監(jiān)聽指定端口(12345),當(dāng)客戶端連接到服務(wù)器時(shí),服務(wù)器會(huì)讀取客戶端發(fā)送的消息,并向客戶端發(fā)送一條消息??蛻舳诉B接到服務(wù)器后,會(huì)向服務(wù)器發(fā)送一條消息,并接收服務(wù)器返回的消息。
要運(yùn)行這個(gè)示例,請首先運(yùn)行Server類,然后運(yùn)行Client類。你會(huì)看到客戶端和服務(wù)器之間的通信輸出。
這只是一個(gè)簡單的示例,實(shí)際應(yīng)用中可能需要考慮更多因素,例如多線程處理并發(fā)連接、異常處理、加密通信等。