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 33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.

***************************
    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

### 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

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

结束！

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