使用Java编写的简单网络通信示例

原创拼搏现实的明天。 2024-11-29 01:30 17阅读 0赞

在Java中，我们通常使用Socket和ServerSocket进行简单的网络通信。以下是一个客户端和服务器端的简单示例：

1. 客户端（ServerSocketClient.java）：
```java
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;

public class ServerSocketClient {
    public static void main(String[] args) {
        try (ServerSocket serverSocket = new ServerSocket(8000);
             Socket clientSocket = serverSocket.accept()) {

System.out.println("Connected to the server at port 8000");

BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())));

String inputLine;
            while ((inputLine = in.readLine()) != null) {
                System.out.println("Received from server: " + inputLine);
            }

} catch (IOException e) {
            e.printStackTrace();
            System.out.println("Error occurred while connecting to the server.");
        }
    }
}
```

2. 服务器端（ServerSocketServer.java）：
```java
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;

public class ServerSocketServer {
    public static void main(String[] args) throws IOException {
        try (ServerSocket serverSocket = new ServerSocket(8000);
             Socket clientSocket = serverSocket.accept()) {

System.out.println("Accepted a connection from client at port 8000");

DataOutputStream out = new DataOutputStream(clientSocket.getOutputStream()));

String message = "Hello, this is a message from the server.";
            out.writeUTF(message);

out.flush();

} catch (IOException e) {
            e.printStackTrace();
            System.out.println("Error occurred while accepting a connection from client.");
        }
    }
}
```

以上代码中，客户端首先创建一个ServerSocket并监听8000端口。当有连接请求时，服务器会接受这个连接，并通过Socket向客户端发送数据。

请注意，这些示例没有处理可能的网络错误或异常，实际应用中需要进行适当的错误和异常处理。