springboot项目不配置数据源启动报错 Description: Failed to configure a DataSource

川长思鸟来 2024-04-01 10:15 121阅读 0赞

报错信息：

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

  1. ***************************
  2. APPLICATION FAILED TO START
  3. ***************************
  5. Description:
  7. Failed to configure a DataSource: 'url' attribute is not specified and no     embedded datasource could be configured.
  9. Reason: Failed to determine a suitable driver class
  12. Action:
  14. Consider the following:
  15.     If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
  16.     If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).
  19. Process finished with exit code 1

原因：

原因在于spring boot默认会加载org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration类，DataSourceAutoConfiguration类使用了@Configuration注解向spring注入了dataSource bean。因为工程中没有关于dataSource相关的配置信息，当spring创建dataSource bean因缺少相关的信息就会报错。

解决：

启动类加上

  1. @SpringBootApplication(exclude={
  2.     DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})

结束！

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