【已解决】Flink Table 转 DataStream报错

最新推荐文章于 2024-03-29 17:53:39 发布

原创最新推荐文章于 2024-03-29 17:53:39 发布 · 772 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#flink

Flink 专栏收录该内容

26 篇文章

订阅专栏

博客指出，在Flink table和DataStream进行互转时，若指定了自定义的pojo类，该类必须为public，否则会报错。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Flink table和DataStream互转的时候，如果指定了自定义的pojo类，需要这个类是public的，否则就会报如下错误。

Exception in thread "main" org.apache.flink.table.api.TableException: A raw type backed by type information has no serializable string representation. It needs to be resolved into a proper raw type.
	at org.apache.flink.table.types.logical.TypeInformationRawType.asSerializableString(TypeInformationRawType.java:101)
	at org.apache.flink.table.planner.sinks.TableSinkUtils$$anonfun$3.apply(TableSinkUtils.scala:95)
	at org.apache.flink.table.planner.sinks.TableSinkUtils$$anonfun$3.apply(TableSinkUtils.scala:95)
	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
	at scala.collection.Iterator$class.foreach(Iterator.scala:891)
	at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
	at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
	at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
	at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
	at scala.collection.AbstractTraversable.map(Traversable.scala:104)
	at org.apache.flink.table.planner.sinks.TableSinkUtils$.validateSchemaAndApplyImplicitCast(TableSinkUtils.scala:95)
	at org.apache.flink.table.planner.delegation.PlannerBase.translateToRel(PlannerBase.scala:260)
	at org.apache.flink.table.planner.delegation.PlannerBase$$anonfun$1.apply(PlannerBase.scala:163)
	at org.apache.flink.table.planner.delegation.PlannerBase$$anonfun$1.apply(PlannerBase.scala:163)
	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
	at scala.collection.Iterator$class.foreach(Iterator.scala:891)
	at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
	at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
	at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
	at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
	at scala.collection.AbstractTraversable.map(Traversable.scala:104)
	at org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:163)
	at org.apache.flink.table.api.bridge.java.internal.StreamTableEnvironmentImpl.toDataStream(StreamTableEnvironmentImpl.java:331)
	at org.apache.flink.table.api.bridge.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:292)
	at org.apache.flink.table.api.bridge.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:283)
	at it.kenn.demo.JoinDemo.main(JoinDemo.java:63)

Process finished with exit code 1