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flinkcdc kafka如何捕获数据变更

小樊
98
2024-12-20 18:39:38
栏目: 大数据
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Flink CDC Kafka 是一个用于捕获和跟踪 Kafka 集群中数据变更的工具。它通过监听 Kafka 的复制日志（Replication Log）来捕获数据变更，并将这些变更转换为 Flink 可处理的数据流。以下是使用 Flink CDC Kafka 捕获数据变更的基本步骤：

  1. 添加依赖

首先，你需要在你的 Flink 项目中添加 Flink CDC Kafka 的依赖。在 Maven 项目的 pom.xml 文件中添加以下依赖：

<dependency>
  <groupId>com.ververica</groupId>
  <artifactId>flink-connector-kafka-cdc</artifactId>
  <version>1.14.0</version>
</dependency>
  1. 创建 Flink CDC Kafka 消费者

接下来，你需要创建一个 Flink CDC Kafka 消费者来读取 Kafka 中的数据变更。以下是一个简单的示例：

import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaSerializationSchemaWrapper;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicPartition;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaUtils;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaZeroCopySchemaWrapper;
import org.apache.flink.streaming.connectors.kafka.internals.OffsetStorage;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicPartitionState;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandler;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapper;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicPartitionStateStore;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicPartitionStateStoreFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetStorageWrapperFactory;
import org.apache.flink.streaming.connectors.kafka.internals.KafkaOffsetHandlerFactory;
import org.

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