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SpringBoot报错:Failed to configure a DataSource: 'url' attribute is not specified and no embedded...

***************************APPLICATION FAILED TO START***************************Description:Failed to configure a DataSource: 'url' attribute is not spec...

egzosn  ·  2024-11-07 15:38:33 发布

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

问题分析及解决方案

1、DataSourceAutoConfiguration会自动加载.可以排除此类的自动配置,在启动类中加入
@SpringBootApplication(exclude= {DataSourceAutoConfiguration.class})
2、在application.properties或者application.yml文件中没有添加数据库配置信息.导致错误,加入数据源即可
spring:
    datasource:
      url: jdbc:mysql://localhost:3306/seckill?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&useSSL=false
      username: root
      password:
      driver-class-name: com.mysql.jdbc.Driver
      type: com.alibaba.druid.pool.DruidDataSource
      filters: stat
3、还有一种错误,是基于第二种的,自己配置了数据源发现还是报同样的错误,新手也很容易犯的错误,就是在使用yml文件配置的时候在配置属性的前面习惯性的有一个或者几个空格或是一个“Tab”,如下:

SpringBoot报错:Failed to configure a DataSource:

在yml文件中配置的属性前面是不允许有缩进的,解决办法就是不缩进,该问题解决。改成如下。将缩进去掉即可,使用yml文件配置一定要注意格式,不然细节将会引起大错误

SpringBoot报错:Failed to configure a DataSource:

还有一种使pom中为引入jar包,这里比较关键的jar包如下:
<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
		</dependency>
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.3.0</version>
		</dependency>
        <!-- 我这里用的数据源使druid -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.0.5</version>
		</dependency>

最后如果还发生报错就可能使自己的url路径配错,或者画蛇添足多加了转义符亦或是根本没有加载到yml文件。

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