在Hibernate中创建会话

Question

package session;

import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import java.util.*;
public class SessionCreate {

private static final SessionFactory sessionFactory = buildSessionFactory1();

private static SessionFactory buildSessionFactory1() {
Configuration configuration = new Configuration().configure(); // configuration
                                                                // settings
                                                                // from
                                                                // hibernate.cfg.xml

StandardServiceRegistryBuilder serviceRegistryBuilder = new StandardServiceRegistryBuilder();


serviceRegistryBuilder.applySettings(configuration.getProperties());

ServiceRegistry serviceRegistry = serviceRegistryBuilder.build();

return configuration.buildSessionFactory(serviceRegistry);
}

public static SessionFactory getSessionFactory() {
return sessionFactory;
 }

public static void shutdown() {
// Close caches and connection pools
getSessionFactory().close();
 }

}

I had JRE8 installed on my computer and I restored it to JRE7 but still i get errors. Please help me with this. This is the only error I am getting: "Implicit super constructor Object() is undefined for default constructor. Must define an explicit constructor" error for SessionCreate Class. What kind of constructor should I make? Another error for configuration.Properties() method :"The type java.util.Properties cannot be resolved. It is indirectly referenced from required .class files"

I have searched a lot for the solution.. Thanks.

Answer 1

如果您最近更改了JRE版本，则可能必须清理并重新编译代码，因为.class文件在这两个版本之间可能不兼容。