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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).
解决办法：
1 @SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
如果是多个：修改成@SpringBootApplication(exclude = {MongoAutoConfiguration.class, DataSourceAutoConfiguration.class})
2 上诉修改不生效：可能的原因是idea没有指定resource目录，导致启动时没读取到配置文件
方法：右击resource文件夹 -> MarkDirectory as ->Sources Root
两种方法都试过了，第二个方法成功解决问题
原文：https://www.cnblogs.com/singlelcx/p/11528570.html