application.properties配置不当造成的基础错误
spring.datasource.url=jdbc:mysql://localhost:3306/easyproject?serverTimezone=UTC
？后面跟的保证sql语句能被识别
否则报错：he server time zone value ‘�й���ʱ��’ is unrecognized or represents more than one time zone. …
mybatis.mapper-locations=classpath:mapper/*xml
各层检查无误后仍有错误
仔细检查配置路径
