我的解决方式是：

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)

即在@SpringBootApplication后，加上(exclude = DataSourceAutoConfiguration.class)。

我也还是SpringBoot新手，还不知道其中的奥妙，看了别人的方法用了可行，就记一下吧。

我的报错信息如下：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-05-16 16:54:21.280 ERROR 28492 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

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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).