Java SDK 示例指南 🌐

欢迎查看 Java SDK 示例代码！以下是使用不同场景的代码片段，帮助您快速上手：

常见使用场景 📌

• 发送 HTTP 请求

  import java.net.HttpURLConnection;
  import java.net.URL;
  
  public class HttpClientExample {
      public static void main(String[] args) throws Exception {
          URL url = new URL("https://api.example.com/data");
          HttpURLConnection conn = (HttpURLConnection) url.openConnection();
          conn.setRequestMethod("GET");
          // 添加图片：Java 语言标识
          <center><img src="https://cloud-image.ullrai.com/q/Java/" alt="Java"/></center>
          // 处理响应...
      }
  }
  

• 操作数据库

  import java.sql.*;
  
  public class JdbcExample {
      public static void main(String[] args) {
          try (Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "user", "password")) {
              Statement stmt = conn.createStatement();
              ResultSet rs = stmt.executeQuery("SELECT * FROM users");
              // 添加图片：数据库连接
              <center><img src="https://cloud-image.ullrai.com/q/Database_Connection/" alt="Database_Connection"/></center>
          } catch (SQLException e) {
              e.printStackTrace();
          }
      }
  }
  

• 消息队列集成

  import org.apache.kafka.clients.producer.*;
  
  public class KafkaProducerExample {
      public static void main(String[] args) {
          Properties props = new Properties();
          props.put("bootstrap.servers", "localhost:9092");
          props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
          props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
          Producer<String, String> producer = new KafkaProducer<>(props);
          // 添加图片：Kafka 队列
          <center><img src="https://cloud-image.ullrai.com/q/Kafka_Queue/" alt="Kafka_Queue"/></center>
          producer.send(new ProducerRecord<>("my-topic", "key", "value"));
      }
  }
  

延伸学习 🔍

如需深入了解 Java SDK 的高级用法，可参考：
Java SDK 官方文档
或查看 Spring Boot 示例 获取框架特定代码。

📌 提示：所有示例均基于开源项目，建议结合实际需求调整参数和异常处理。