网络编程：Java Socket和ServerSocket的实战案例

原创深藏阁楼爱情的钟 2024-12-02 18:09 20阅读 0赞

在Java中，Socket和ServerSocket是用于网络通信的关键类。以下是一个简单的Socket服务器和客户端的实战案例：

**服务器端（Server.java）**

```java
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
    public static void main(String[] args) {
        try (ServerSocket serverSocket = new ServerSocket(8080)) {
            System.out.println("Server is listening on port 8080...");

Socket socket = serverSocket.accept();
            System.out.println("New connection established: " + socket);

BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream())));
            BufferedWriter out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())));

String messageFromClient = in.readLine();
            System.out.println("Received message from client: " + messageFromClient);

// Send a response to the client
            out.write("Server received your message: " + messageFromClient);
            out.flush();
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println("Error occurred while serving on port 8080.");
        }
    }
}
```

**客户端（Client.java）**

```java
import java.io.*;
import java.net.Socket;

public class Client {
    public static void main(String[] args) {
        try (Socket socket = new Socket("localhost", 8080)); {
            System.out.println("Connecting to server on port 8080...");

BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream())));
            BufferedWriter out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())));

String messageFromServer = in.readLine();
            System.out.println("Received message from server: " + messageFromServer));

// Send a message to the server
            out.write("Client sending your message: Hello, Server!");
            out.flush();
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println("Error occurred while connecting to server on port 8080.");
        }
    }
}
```

这个实战案例中，服务器端监听8080端口，接受客户端的连接并发送和接收消息。客户端连接到服务器，并发送一个消息给服务器。