解决SpringBoot启动报错:Failed to determine a suitable driver class

将application.properties文件中的本地数据库源换成云服务器上数据库源时,再次启动发现出现如下错误:

Description:

Failed to configure a DataSource: 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).

检查一:

application.properties中的数据库相关配置是否有误

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://【ip】:【端口】/【数据库名】?allowMultiQueries=true&serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=UTF-8&useSSL=false
spring.datasource.username=***
spring.datasource.password=***

检查二:

pom.xml文件中是否有依赖冲突

比如引入了两个mysql驱动(plugin中的也算)

检查三:

可能是没有扫描到配置文件
在pom.xml -> build中加入:


			
				src/main/java
				
					**/*.properties
					**/*.xml
					**/*.yml
				
				false
			
			
				src/main/resources
				
					**/*.properties
					**/*.xml
					**/*.yml
				
				false
			
		

还有一种可能是数据库版本和驱动版本不匹配 (我猜的:)

我的原因是因为有依赖冲突,但是我还是不能理解,为什么把localhost换成服务器ip才会出现冲突,之前用localhost一直没问题???

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