springboot org.hibernate.MappingException: No Dialect mapping for JDBC type: -9

参考 https://www.cnblogs.com/luxd/p/8316243.html

https://www.cnblogs.com/s648667069/p/6478559.html

@Component

public class MyOracleDialect extends Oracle10gDialect {
    public MyOracleDialect() {
        super();
        registerHibernateType(Types.NVARCHAR, StandardBasicTypes.STRING.getName());
    }
}

spring.jpa.properties.hibernate.dialect=xx.MyOracleDialect