报错信息
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APPLICATION FAILED TO START
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Description:
The bean 'dataSource', defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Generic.class], could not be registered. A bean with that name has already been defined in class path resource [com/example/flowabledemo/config/FlowableConfig.class] and overriding is disabled.
Action:
Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true
原因
没有正确连接到数据库, 排查数据库连接配置信息, 如: 用户名密码, 连接的数据库是否存在, 连接池配置是否正确