在Sprtingboot启动时，提示如下错误。
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).
然后在网上找的解决办法是@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class,DataSourceTransactionManagerAutoConfiguration.class})
但是添加之后，依旧出现了上面的问题。原因是去除的不够彻底。
所以解决方法如下：
@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class,DataSourceTransactionManagerAutoConfiguration.class,DruidDataSourceAutoConfigure.class ,HibernateJpaAutoConfiguration.class})
