Java网络编程：Socket连接问题、异常捕获案例-向日葵屋

Java网络编程：Socket连接问题、异常捕获案例

原创痛定思痛。 2024-11-21 20:00 72阅读 0赞

在Java中进行网络编程，主要涉及Socket连接。下面是一个基本的Socket连接示例以及异常捕获案例：

创建Socket连接：

import java.io.*;
import java.net.*;
public class SocketConnect {
    public static void main(String[] args) {
        // 创建Socket对象
        try (Socket socket = new Socket("localhost", 1234)) {
            System.out.println("Socket connected successfully!");
            // 创建流并读写数据
            try (OutputStream outputStream = socket.getOutputStream();
                 BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream())))) {
                // 发送数据
                String message = "Hello, Server!";
                outputStream.write(message.getBytes());
                // 读取回显数据
                String response = reader.readLine();
                System.out.println("Server response: " + response);
            } catch (IOException e) {
                System.err.println("Error occurred while reading/writing data:");
                e.printStackTrace();
            }
        } catch (UnknownHostException e) {
            System.err.println("Unknown host error while connecting to server.");
            e.printStackTrace();
        } catch (IOException i) {
            System.err.println("IOException occurred while connecting to server.");
            i.printStackTrace();
        }
    }
}