question
springboot project error
Cannot determine embedded database driver class for database type NONE
details as follows:
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APPLICATION FAILED TO START
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Description:
Cannot determine embedded database driver class for database type NONE
Action:
If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (the profiles "dev" are currently active).
Among them, the relevant yml files are as follows:
spring:
redis:
host: localhost
password:
port: 6379
timeout: 1000
pool:
max-idle: 100 # 连接池中的最大空闲连接
min-idle: 1 # 连接池中的最小空闲连接
max-active: 1000 #连接池最大连接数（使用负值表示没有限制）
max-wait: -1 # 连接池最大阻塞等待时间（使用负值表示没有限制）
There is no link to configure mysql here because the project does not need to interact with mysql.
reason
springboot To create a DataSource object:
-
Try to find dataSourceClass, if found, the condition is true. Then under debug, you can find that the dataSourceClass found is: org.apache.tomcat.jdbc.pool.DataSource.
-
Then look at where does the class org.apache.tomcat.jdbc.pool.DataSource come from?
-
As you can see from the maven dependency tree, the dependencies are from: spring-boot-starter-jdbc. So the application depends on spring-boot-starter-jdbc, but there is no problem caused by configuring DataSource.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
solve
Delete the following dependencies from the pom (because the dependency is upwardly dependent spring-boot-starter-jdbc)
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>