Caused by: org.springframework.dao.DataAccessResourceFailureException: Failed to obtain R2DBC Connection
at org.springframework.r2dbc.connection.ConnectionFactoryUtils.lambda$getConnection$0(ConnectionFactoryUtils.java:90) ~[spring-r2dbc-6.0.5.jar:6.0.5]
at reactor.core.publisher.Mono.lambda$onErrorMap$28(Mono.java:3773) ~[reactor-core-3.5.3.jar:3.5.3]
at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:94) ~[reactor-core-3.5.3.jar:3.5.3]
... 20 common frames omitted
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: finishConnect(..) failed: Connection refused: localhost/127.0.0.1:3306
Caused by: java.net.ConnectException: finishConnect(..) failed: Connection refused
