Failed to determine a suitable driver class

在新增模块后，配置完配置文件，启动时报错

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APPLICATION FAILED TO START
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Description:

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Reason: Failed to determine a suitable driver class


Action:

Consider the following:
    If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
    If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).

Disconnected from the target VM, address: '127.0.0.1:55191', transport: 'socket'

Process finished with exit code 1

究其原因，是因为当前模块在pom文件中引用了公共模块中的包，里面包含了mybatis-plus和mysql的引用，这两个需要在配置文件中明确数据库配置，但是当前模块不需要与数据库交互。

当前模块引用的父级包.png

父级pom中引用了mybatis-plus和mysql

父级pom.png

解决办法，在当前模块的pom文件中，将mybatis-plus和mysql的引用排除掉。

当前模块pom.png

最后启动成功：

启动成功.png