springboot启动报错退出，To display the conditions report re-run your application with 'debug' enabled.

Error starting ApplicationContext. To display the conditions report re-run your application with ‘debug‘ enabled.
2019-01-19 12:01:39.870 ERROR 8324 --- [  restartedMain] o.s.b.d.LoggingFailureAnalysisReporter   :

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APPLICATION FAILED TO START
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Description:

Failed to auto-configure a DataSource: ‘spring.datasource.url‘ is not specified and no embedded datasource could be auto-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).


Process finished with exit code 0

原因依赖中添加了数据层依赖，springboot启动时自动注入DataSource，还没配置所以报错。

注释掉数据层即可。