java - Spring Batch 在 Spring Cloud Dataflow 中不起作用

Question

我有一批在当地运行良好的春季批次。

当我想在 Spring Cloud Data Flow 中部署为任务时，运行任务时出现以下错误：

2021-03-07 09:10:24.921 ERROR 1045 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'batchConfiguration': Invocation of init method failed; nested exception is org.springframework.batch.core.configuration.BatchConfigurationException: org.springframework.jdbc.support.MetaDataAccessException: Could not get Connection for extracting meta-data; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: java.net.ConnectException: Connection refused (Connection refused)
        at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:160) ~[spring-beans-5.2.2.RELEASE.jar!/:5.2.2.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:416) ~[spring-beans-5.2.2.RELEASE.jar!/:5.2.2.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1788) ~[spring-beans-5.2.2.RELEASE.jar!/:5.2.2.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.2.RELEASE.jar!/:5.2.2.RELEASE]

Caused by: org.springframework.batch.core.configuration.BatchConfigurationException: org.springframework.jdbc.support.MetaDataAccessException: Could not get Connection for extracting meta-data; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: java.net.ConnectException: Connection refused (Connection refused)
        at org.springframework.batch.core.configuration.annotation.DefaultBatchConfigurer.initialize(DefaultBatchConfigurer.java:119) ~[spring-batch-core-4.2.1.RELEASE.jar!/:4.2.1.RELEASE]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]
        at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(I

这是我的application.properties

spring.datasource.url=jdbc:mysql://localhost:3306/dataflow
spring.datasource.username=root
spring.datasource.password=rootpw
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect
spring.jpa.hibernate.ddl-auto=update

类 BatchConfiguration 中没有配置

Spring Cloud 数据流在 docker 容器中

标签： javaspring-batchspring-cloud-dataflow