!24 新增useInformationSchema=true连接参数，获取表的comment

Merge pull request !24 from AngiWANG/master

admin-console/src/main/resources/application.properties

-spring.datasource.url=jdbc:mysql://127.0.0.1:3306/starter?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8&useSSL=false
+spring.datasource.url=jdbc:mysql://127.0.0.1:3306/starter?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8&useSSL=false&useInformationSchema=true
 spring.datasource.username=root
 spring.datasource.password=123456
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver