对于Flink CDC,谁有java 开发的基础代码?
import com.ververica.cdc.debezium.DebeziumDeserializationSchema;
import com.ververica.cdc.debezium.DebeziumSourceFunction;
import io.debezium.data.Envelope;
import org.apache.flink.api.common.serialization.SimpleStringSchema;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer;
import org.apache.flink.streaming.connectors.kafka.KafkaSerializationSchema;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import java.util.Properties;
public class FlinkCDCExample {
public static void main(String[] args) throws Exception {
// Create the execution environment
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
// Set up the Kafka consumer properties
Properties consumerProperties = new Properties();
consumerProperties.setProperty(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
consumerProperties.setProperty(ConsumerConfig.GROUP_ID_CONFIG, "flink-cdc-example");
// Create the Debezium source function
DebeziumSourceFunction<Envelope> sourceFunction = DebeziumSourceFunction.builder()
.hostname("localhost")
.port(8083)
.username("debezium")
.password("dbz-secret")
.database("inventory")
.tableList("products")
.deserializationSchema(new DebeziumDeserializationSchema())
.build();
// Create the Kafka consumer
FlinkKafkaConsumer<Envelope> consumer = new FlinkKafkaConsumer<>("inventory-changes", new SimpleStringSchema(), consumerProperties);
// Add the Debezium source function to the execution environment
DataStream<Envelope> debeziumSource = env.addSource(sourceFunction);
// Add the Kafka consumer to the execution environment
DataStream<String> kafkaSource = env.addSource(consumer);
// Print the Debezium source data to the console
debeziumSource.print();
// Print the Kafka source data to the console
kafkaSource.print();
// Execute the streaming job
env.execute("Flink CDC Example");
}
}
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