才寫了一行代碼又報錯了..

***************************
APPLICATION FAILED TO START
***************************

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).

Disconnected from the target VM, address: ‘127.0.0.1:58792‘, transport: ‘socket‘

Process finished with exit code 0
 

未指定“url”屬性，無法配置嵌入的數據源。

原因：由於添加了數據庫組件，所以autoconfig會去讀取數據源配置，新建的項目還沒有配置數據源，所以會導致異常出現。

解決辦法：
在啟動類添加如下內容
即：@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
----------------
轉自：悟世君子的博客

Failed to configure a DataSource 'url' attribute問題解決