啟動異常

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APPLICATION FAILED TO START

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Description:

Failed to configure a DataSource: 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).

配置：

spring.datasource.url = jdbc:mysql\://192.168.0.20\:1504/f_me?setUnicode=true&characterEncoding=utf8

spring.datasource.username = ...

spring.datasource.password = ...

問題分析:

在spring xml配置檔案中引用了資料庫地址 所以需要對:等進行轉義處理

springboot如果沒有指定spring.datasource.driver-class-name 會根據spring.datasource.url解析自動匹配驅動類, 而springboot不是xml方式配置的 所以spring.datasource.url不需要進行轉義 ，加了轉義之後對驅動解析就有問題了, 總之問題出在spring.datasource.url上，格式不正確spring自動解析不了（我這裡是冒號前多了"\"轉義符號）

解決問題:

修改配置

spring.datasource.url =jdbc:mysql://192.168.0.20:1504/f_me?setUnicode=true&characterEncoding=utf8

spring.datasource.username = ...

spring.datasource.password = ...

（注意其它spring.datasource.url格式錯誤問題也可能會導致同樣的問題)