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利用Java Socket构建分布式系统涉及多个步骤和组件。以下是一个基本的指南,帮助你理解如何使用Java Socket来实现分布式系统:
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
public static void main(String[] args) {
try (ServerSocket serverSocket = new ServerSocket(12345)) {
System.out.println("Server is listening on port 12345");
while (true) {
Socket clientSocket = serverSocket.accept();
System.out.println("New client connected");
// 处理客户端请求
handleClient(clientSocket);
}
} catch (Exception e) {
e.printStackTrace();
}
}
private static void handleClient(Socket clientSocket) {
try {
// 获取输入输出流
BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
String inputLine;
while ((inputLine = in.readLine()) != null) {
System.out.println("Received from client: " + inputLine);
out.println("Server received: " + inputLine);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
clientSocket.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
import java.net.Socket;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
public class Client {
public static void main(String[] args) {
try (Socket socket = new Socket("localhost", 12345)) {
BufferedReader userInput = new BufferedReader(new InputStreamReader(System.in));
PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String userInputLine;
while ((userInputLine = userInput.readLine()) != null) {
out.println(userInputLine);
String response = in.readLine();
System.out.println("Server response: " + response);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
通过以上步骤,你可以利用Java Socket构建一个基本的分布式系统,并根据需求进行扩展和优化。
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