Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Error starting ApplicationContext. To display the conditions report re-run your application with ‘debug‘ enabled.
2021-05-12 16:29:24.984 ERROR 17880 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
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).


Process finished with exit code 1

报错原因：未扫描到数据库配置文件，我是application.properties

解决方法：在pom里加上扫描语句，需要扫描什么后缀加什么

<resources>
    <resource>
        <directory>src/main/java</directory>
        <includes>
            <include>**/*.yml</include>
            <include>**/*.properties</include>
            <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
    </resource>
    <resource>
        <directory>src/main/resources</directory>
        <includes>
            <include>**/*.yml</include>
            <include>**/*.properties</include>
            <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
    </resource>
</resources>

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

原文：https://www.cnblogs.com/yiyuzi/p/14760459.html