Failed to configure a DataSource: ‘url‘ attribute is not specified and no embedded datasource could

异常提示

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

检查在application.properties/或者application.yml文件中没有添加数据库配置信息

spring.datasource.druid.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.druid.url=jdbc:mysql://localhost:3306/db_test_mybatis?useSSL=false&useUnicode=true&characterEncoding=utf-8
spring.datasource.druid.username=root
spring.datasource.druid.password=root

检查是否添加 druid 依赖

        <!--  druid  -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.2.4</version>
        </dependency>