錯誤描述：
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
檢查url配置發現數據源配置沒有問題。繼續看報錯信息。
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).
發現報當前沒有激活的配置文件。
檢查項目發現application.properties文件沒有被激活。
重新構建項目
重啟成功。