Exception to Hibernate program: Java.lang.UnsupportedOperationException:The user must supply a JDBC connection

Java.lang.UnsupportedOperationException:The user must supply a JDBC connection
Appear such an exception must be very depressed, internet search search, said confused a few days, to the end also did not give a solution, because I feel that I wrote quite right,
Even if there is no error, I also, search for a while or did not find the error, I took the program template and my one control,
The results found that in my hibernate.cfg.xml to configure the database path of a space, it is not obvious, hey, the space to remove the good.

<property name= "Hibernate.connection.url" >jdbc:mysql://localhost/hibernate_first</property>
The red background of the space can not be ah.