这是个测试hibernate的student类出现了一些问题，

import org.hibernate.cfg.*;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

import com.xuyihui.*;//引入的是我自己间的包
public class StudentTest {
    public static void main(String[] args)
    {
            Student s =new Student();
            s.setId(11);
            s.setAge(2);
            s.setName("小护航");
            
            Configuration cfg= new Configration();
            SessionFactory sf=cfg.configuration().buildSssionFactory();
            Session session =sf.open()Session();
            session.beginTransaction();
            session.save();
            session.getTransaction().commit();
            session.close();
            sf.close();
        
            
    }

}
 
//Configuration cfg= new Configration();
            SessionFactory sf=cfg.configuration().buildSssionFactory();
            Session session =sf.open()Session();
//import org.hibernate.cfg.*;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
出现错误，特别是为什么会显示我引入的包有问题呢！
下面是错误提示（红线的就是）