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

╰半橙微兮° 2021-12-04 02:47 169阅读 0赞

Spring boot启动不了出现

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……

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDQxMTU2OQ_size_16_color_FFFFFF_t_70]  
这种情况因该是驱动的错误 我的是因为加入了org.mybatis.spring.boot的原因  
![在这里插入图片描述][20190719161028196.png]  
spring boot 会默认加载org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration这个类，而DataSourceAutoConfiguration类使用了@Configuration注解向spring注入了dataSource bean，又因为项目中并没有关于dataSource相关的配置信息，所以当spring创建dataSource bean时因缺少相关的信息就会报错。

###### 2、处理方式： ######

在@SpringBootApplication注解上加上exclude，解除自动加载DataSourceAutoConfiguration。

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
    @ComponentScan(basePackages= { "com.gx.controller"})
    public class MyFirstSpringbootApplication { 
    
        public static void main(String[] args) { 
            SpringApplication.run(MyFirstSpringbootApplication.class, args);
        }
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDQxMTU2OQ_size_16_color_FFFFFF_t_70]: /images/20211203/4ccfd6a89204474ebd608ca50010aef1.png
[20190719161028196.png]: /images/20211203/c34f1bb9b2cc4acd8ddc68ed11dd6060.png

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

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