Java flowable tip connection error is how to return a responsibility?-CodePudding

 
Com. Alibaba. Druid. Filter. FilterChainImpl. DataSource_connect (FilterChainImpl. Java: 5003) 
At com. Alibaba. Druid. Pool. DruidDataSource. GetConnection (DruidDataSource. Java: 1233) 
At com. Alibaba. Druid. Pool. DruidDataSource. GetConnection (DruidDataSource. Java: 1225) 
At com. Alibaba. Druid. Pool. DruidDataSource. GetConnection (DruidDataSource. Java: 90) 
At org) springframework). The JDBC datasource. DataSourceTransactionManager. DoBegin (DataSourceTransactionManager. Java: 262) 
. 17 common frames omitted 
The 2021-03-31 16:14:04 [org. Flowable. Eventregistry. Impl. Management EventRegistryChangeDetectionRunnable: 37] ERROR org. Flowable. Eventregistry. Impl. Management EventRegistryChangeDetectionRunnable - Exception while detecting the event registry changes 
Org. Springframework. Transaction. CannotCreateTransactionException: Could not open the JDBC Connection for the transaction; Nested exception is com. Alibaba. Druid. Pool. DataSourceClosedException: dataSource already closed at Wed Mar 31 16:04:54 CST 2021 
At org) springframework). The JDBC datasource. DataSourceTransactionManager. DoBegin (DataSourceTransactionManager. Java: 305) 
The at org. Springframework. Transaction. Support. AbstractPlatformTransactionManager. GetTransaction (AbstractPlatformTransactionManager. Java: 378)