Spring Boot 启动报错Error creating bean with name 'dataSource' defined in class path resource

柔光的暖阳◎ 2022-01-29 18:47 700阅读 0赞

使用idea 新建了一个spring boot项目，什么都不干，新建一个controller,然后启动报错：

Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource \[org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class\]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate \[com.zaxxer.hikari.HikariDataSource\]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3djYzI3ODU3Mjg1_size_16_color_FFFFFF_t_70][]

原因：spring boot会默认加载org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration类

因为新建的spring boot 工程中没有dataSource相关的配置信息，所以一启动就报错

在Application类上加上如下：

@EnableAutoConfiguration(exclude=\{DataSourceAutoConfiguration.class\})

或者配置datasource信息，补全配置文件即可

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Spring Boot 启动报错Error creating bean with name 'dataSource' defined in class path resource

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