这个例外是什么意思？
ERROR : org.hibernate.util.JDBCExceptionReporter:78 : logExceptions() : There is no 'root'@'%' registered
...
at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
...
Caused by: java.sql.SQLException: There is no 'root'@'%' registered
我在尝试插入mysql数据库表时遇到此异常