我报的错:
org.springframework.beans.factory.beancreationexception: error creating bean with name 'sqlsessionfactory' defined in class path resource [config/spring/applicationcontext.xml]: invocation of init method failed; nested exception is org.springframework.core.nestedioexception: failed to parse mapping resource:
这个可能是项目刚开始时导入了mapper文件，但还是没有实体类与其对应而报的错，可以把mapper文件先去掉，这样不报错了
