各位邦友大神，我又來請教了XD

這次要請教的情況如下，先列出本人覺得可能正相關的內容

IDE:Eclipse IDE for Java Developers - Version: 2020-12 (4.18.0)
套件管理:Maven 3
JDK:11
MySQL:8

原先可以直接透過專案的Application啟動Tomcat及運作(IDE環境設定好就沒再動)

換了Eclipse(同官方下載版本)，就一直恢復不了原本環境，

換了Eclipse的啟動Console為

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).

我這邊嘗試做過換台電腦、同台電腦僅換Eclipse、換掉SQL的Jar、Eclipse一些設定，都無法排除此情況

還請有路過的大神指點方向 或 可能我疏漏掉的步驟

謝謝指教