flink如何读取hbase表中的数据

Flink可以通过HBaseInputFormat来读取HBase表中的数据。以下是一个简单的示例代码：

import org.apache.flink.api.java.DataSet; import org.apache.flink.api.java.ExecutionEnvironment; import org.apache.flink.api.java.io.TextInputFormat; import org.apache.flink.api.java.tuple.Tuple2; import org.apache.flink.api.java.typeutils.TypeExtractor; import org.apache.hadoop.hbase.HBaseConfiguration; import org.apache.hadoop.hbase.client.Result; import org.apache.hadoop.hbase.io.ImmutableBytesWritable; import org.apache.hadoop.hbase.mapreduce.TableInputFormat;  public class ReadHBaseData {      public static void main(String[] args) throws Exception {         final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();          org.apache.hadoop.conf.Configuration configuration = HBaseConfiguration.create();         configuration.set(TableInputFormat.INPUT_TABLE, "");          DataSet> hbaseData = env.createInput(new org.apache.hadoop.hbase.mapreduce.TableInputFormat<>(                 new TextInputFormat(),                 ImmutableBytesWritable.class,                 Result.class));          DataSet> mappedData = hbaseData.map(value -> {             String key = new String(value.f0.get());             String data = value.f1.toString();             return new Tuple2<>(key, data);         });          mappedData.print();     } } 

请确保在pom.xml文件中包含必要的Flink和HBase依赖项。您还需要将替换为您要读取的HBase表的名称。