java.lang.ClassNotFoundException: org.mybatis.logging.LoggerFactory

在公司整合老项目时，用SpringBoot2在整合mybatis-plus，启动后报错：

Caused by: java.lang.NoClassDefFoundError: org/mybatis/logging/LoggerFactory
	at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.<clinit>(MybatisSqlSessionFactoryBean.java:88)
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration.sqlSessionFactory(MybatisPlusAutoConfiguration.java:167)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
	... 64 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.mybatis.logging.LoggerFactory
	at java.net.URLClassLoader.findClass(URLClassLoader.java:387)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
	... 71 common frames omitted

我的配置是：

<dependency>
      <groupId>com.baomidou</groupId>
      <artifactId>mybatis-plus-boot-starter</artifactId>
      <version>3.5.3</version>
</dependency>

mybatis-plus 3.2.0以上版本需要用到一个扩展包，但是和springboot整合的starter里面还没有，所以需要单独加上一个扩展包，用同版本的扩展包就行：

<dependency>
     <groupId>com.baomidou</groupId>
     <artifactId>mybatis-plus-extension</artifactId>
     <version>3.5.3</version>
</dependency>