项目场景：

微服务项目中，多个项目互相调用时，出现

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
//无法配置数据库，没有指定url属性，并且无法配置embedded datasource
Reason: Failed to determine a suitable driver class
//原因：无法明确指定正确的驱动类（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).

问题描述

程序启动失败，缺乏合适的启动项

解决方案：

pom文件中依赖冲突，当前类有自己的启动类，application.yml文件。但是pom中引入的类也有自己的启动类和配置文件。

所以要注意依赖里只可引入工具类或实体类，避免冲突。

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Failed to determine a suitable driver class

项目场景：

问题描述

解决方案：

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