springBoot与mybatis-plus整合，配置mapper.xml发生异常 :Property configuration and configLocation can not specif

一、异常场景

springBoot + Mybatis-plus整合完毕。

使用mp提供的方法无法满足业务需求，需要手写SQL。

于是配置Mapper.xml文件并测试手写SQL时发生异常。

二、核心错误信息

错误信息一大推，由最初没抓住异常问题核心，被什么bean创建失败异常吸引，白白浪费好长时间。

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is java.lang.IllegalStateException: Property 'configuration' and 'configLocation' can not specified with together
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:622)
	... 127 more
Caused by: java.lang.IllegalStateException: Property 'configuration' and 'configLocation' can not specified with together
	at org.springframework.util.Assert.state(Assert.java:73)
	at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.afterPropertiesSet(MybatisSqlSessionFactoryBean.java:419)
	at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.getObject(MybatisSqlSessionFactoryBean.java:636)
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration.sqlSessionFactory(MybatisPlusAutoConfiguration.java:172)
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$1bd5cbdb.CGLIB$sqlSessionFactory$2(<generated>)
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$1bd5cbdb$$FastClassBySpringCGLIB$$295449c3.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363)
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$1bd5cbdb.sqlSessionFactory(<generated>)
	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)
	... 128 more

三、错误原因及解决方法

异常信息： *Property 'configuration' and 'configLocation' can not specified with together* 
 
说明：'configuration'和'configLocation'不能一起配置，发生冲突

在配置Mapper.xml文件位置时，由于一时大意，没看清楚，由mapper-locations配置成了config-location。

更改配置后，测试正常，问题解决。