Flink编程报错集锦

最新推荐文章于 2025-03-01 22:00:00 发布

泛音青年

最新推荐文章于 2025-03-01 22:00:00 发布

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分类专栏： flink 文章标签： flink

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1、 Could not find a suitable table factory for 'org.apache.flink.table.factories.TableSourceFactory' in
the classpath.

Exception in thread "main" org.apache.flink.table.api.TableException: findAndCreateTableSource failed.
   at org.apache.flink.table.factories.TableFactoryUtil.findAndCreateTableSource(TableFactoryUtil.java:67)
   at org.apache.flink.table.factories.TableFactoryUtil.findAndCreateTableSource(TableFactoryUtil.java:54)
   at org.apache.flink.table.descriptors.ConnectTableDescriptor.registerTableSource(ConnectTableDescriptor.java:69)
   at com.qianxin.luran.flinksql.Demo1.main(Demo1.java:42)
Caused by: org.apache.flink.table.api.NoMatchingTableFactoryException: Could not find a suitable table factory for 'org.apache.flink.table.factories.TableSourceFactory' in
the classpath.

Reason: No context matches.

The following properties are requested:
connector.properties.0.key=bootstrap.servers
connector.properties.0.value=localhost:9092
connector.property-version=1
connector.topic=amount
connector.type=kafka
connector.version=0.10
format.derive-schema=true
format.property-version=1
format.type=json
schema.0.name=amount
schema.0.type=VARCHAR
schema.1.name=product
schema.1.type=VARCHAR
update-mode=append

The following factories have been considered:
org.apache.flink.api.java.io.jdbc.JDBCTableSourceSinkFactory
org.apache.flink.formats.json.JsonRowFormatFactory
org.apache.flink.streaming.connectors.kafka.KafkaTableSourceSinkFactory
org.apache.flink.table.catalog.GenericInMemoryCatalogFactory
org.apache.flink.table.sources.CsvBatchTableSourceFactory
org.apache.flink.table.sources.CsvAppendTableSourceFactory
org.apache.flink.table.sinks.CsvBatchTableSinkFactory
org.apache.flink.table.sinks.CsvAppendTableSinkFactory
org.apache.flink.table.planner.delegation.BlinkPlannerFactory
org.apache.flink.table.planner.delegation.BlinkExecutorFactory
org.apache.flink.table.planner.StreamPlannerFactory
org.apache.flink.table.executor.StreamExecutorFactory
   at org.apache.flink.table.factories.TableFactoryService.filterByContext(TableFactoryService.java:283)
   at org.apache.flink.table.factories.TableFactoryService.filter(TableFactoryService.java:191)
   at org.apache.flink.table.factories.TableFactoryService.findSingleInternal(TableFactoryService.java:144)
   at org.apache.flink.table.factories.TableFactoryService.find(TableFactoryService.java:97)
   at org.apache.flink.table.factories.TableFactoryUtil.findAndCreateTableSource(TableFactoryUtil.java:64)
   ... 3 more

解决：kafka版本问题，kafka.version直接写成universal，问题解决

2、java.lang.NoClassDefFoundError: org/apache/flink/streaming/api/functions/source/SourceFunction

java.lang.NoClassDefFoundError: org/apache/flink/streaming/api/functions/source/SourceFunction
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
	at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
	at java.lang.Class.getMethod0(Class.java:3018)
	at java.lang.Class.getMethod(Class.java:1784)
	at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
	at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
Caused by: java.lang.ClassNotFoundException: org.apache.flink.streaming.api.functions.source.SourceFunction
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 7 more

解决：在idea中运行时报此错，需要将flink目录下lib文件夹中的jar加载到idea项目中，Project Structure->Libraries->+->java