Description: Failed to auto-configure a DataSource: 'spring.datasource.url'
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：
一、启动类添加：
@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
二、启动类添加第二种：
@EnableAutoConfiguration(exclude = DataSourceAutoConfiguration.class)