Springboot集成-数据采集工具Flink-CDC

为了解决这个问题，我们需要创建一个Spring Boot应用程序，它使用Flink来进行数据采集，并使用Flink CDC从数据库中读取变更数据。以下是一个简化的代码示例：

import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
import org.apache.flink.table.api.TableResult;
import org.apache.flink.table.api.EnvironmentSettings;
import com.ververica.cdc.connectors.mysql.MySqlSource;
import com.ververica.cdc.debezium.StringDebeziumDeserializationSchema;
 
public class FlinkCDCExample {
    public static void main(String[] args) throws Exception {
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        EnvironmentSettings settings = EnvironmentSettings.newInstance()
            .useBlinkPlanner()
            .inStreamingMode()
            .build();
        StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env, settings);
 
        MySqlSource<String> mySqlSource = MySqlSource.<String>builder()
            .hostname("your-db-host")
            .port(3306)
            .databaseList("your-database") // set captured database
            .tableList("your-database.your-table") // set captured table
            .username("your-username")
            .password("your-password")
            .deserializer(new StringDebeziumDeserializationSchema()) // converts the binlog into String format
            .build();
 
        TableResult tableResult = tableEnv.executeSql("CREATE TABLE source_table (" +
            "   id INT NOT NULL," +
            "   name STRING," +
            "   PRIMARY KEY (id) NOT ENFORCED" +
            ") WITH (" +
            "   'connector' = 'mysql-cdc'," +
            "   'hostname' = 'your-db-host'," +
            "   'port' = '3306'," +
            "   'username' = 'your-username'," +
            "   'password' = 'your-password'," +
            "   'database-name' = 'your-database'," +
            "   'table-name' = 'your-table'" +
            ")");
 
        env.execute("Flink CDC MySQL Job");
    }
}

在这个例子中，我们创建了一个StreamExecutionEnvironment和一个StreamTableEnvironment。然后，我们配置了MySqlSource，指定了数据库的主机名、端口、数据库名、表名、用户名和密码。我们还定义了一个Debezium反序列化方案，它将来自Debezium的二进制日志转换为String格式。

最后，我们通过执行SQL语句在TableEnvironment中创建了一个源表，并执行了Flink作业。

注意：这个例子假设你已经将Flink