Failed to configure a DataSource: ‘url‘ attribute is not specified

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).

错误描述：在.xml文件中加入了mysql,jdbc但是没有设置数据库的url就会出现此类错误导致程序停止运行

解决方法：

方法一：

将jdbc和mysql依赖注释掉，一定要刷新在运行

错误已解决

方法二：

在主程序上将@SpringBootApplication 改成 @SpringBootApplicaiton(exclude = {DataSourceAutoConfiguration.class})即可