Failed to configure a DataSource: ‘url‘ attribute is not specified and no embe...

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已经配置了数据源但是仍然报错未配置。

application.yml反复检查后没有问题。

解决方案：

将pom文件中的

<packaging>pom</packaging>

删掉就可以了。具体原理是啥俺也不明白。。。。