springboot项目禁用dataSource数据源功能，只需修改yml文件，关闭数据库连接功能

当我们遇到以下报错：

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).
 

如果不想使用数据库功能，可以这样配置：

application.yml： 

spring:
  autoconfigure:
    exclude: org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration