Java网络编程中服务器端问题示例-蒲公英云

Java网络编程中服务器端问题示例

在Java网络编程中，服务器端的问题通常涉及到客户端的连接、数据传输以及错误处理等方面。以下是一个简单的示例：

创建ServerSocket监听：
```java
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
private static Server server = new Server();

public static void main(String[] args) throws IOException {
    int port = 9999; // 服务器端口
    System.out.println("Server started on port " + port);
    server.acceptAndHandleClient(port);
}
// 主要方法，处理客户端连接
private void acceptAndHandleClient(int port) throws IOException {
    ServerSocket ss = new ServerSocket(port); // 创建服务器套接字
    Socket clientSocket = ss.accept(); // 等待客户端连接
    System.out.println("New connection from " + clientSocket.getRemoteSocketAddress()));
    handleClient(clientSocket);
}
// 业务处理方法，根据具体需求编写
private void handleClient(Socket clientSocket) throws IOException {
    BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()))); // 创建输入流
    String message;
    while ((message = in.readLine()) != null)) { // 读取客户端消息
        System.out.println("Received message: " + message));
        // 在这里处理业务逻辑，可以发送回信等
        if (message.equals("Hello Server")) {
            sendResponse(clientSocket, "Hello Client"));
        }
    }
    in.close(); // 关闭输入流
}
private void sendResponse(Socket clientSocket, String response) throws IOException {
    OutputStream out = clientSocket.getOutputStream();
    out.write(response.getBytes()); // 发送响应
    out.flush();
}