Java 无法从HibernateUtil类型对非静态方法getSessionFactory()进行静态引用
尝试使用Hibernate和Struts2显示来自MySQL数据库的数据,我可以将数据添加到数据库中,并且值正在更新,但我无法在jsp页面中显示它 错误:无法从HibernateUtil类型静态引用非静态方法getSessionFactory() 这是我的书页 HibernateUtils.javaJava 无法从HibernateUtil类型对非静态方法getSessionFactory()进行静态引用,java,mysql,hibernate,orm,sessionfactory,Java,Mysql,Hibernate,Orm,Sessionfactory,尝试使用Hibernate和Struts2显示来自MySQL数据库的数据,我可以将数据添加到数据库中,并且值正在更新,但我无法在jsp页面中显示它 错误:无法从HibernateUtil类型静态引用非静态方法getSessionFactory() 这是我的书页 HibernateUtils.java package com.stg.shdb2.utils; import org.hibernate.SessionFactory; import org.hibernate.cfg.Annotat
package com.stg.shdb2.utils;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
public class HibernateUtils {
private static final SessionFactory sessionFactory=buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
// Create the SessionFactory from hibernate.cfg.xml
return new AnnotationConfiguration().configure().buildSessionFactory();
} catch (Throwable ex) {
// Make sure you log the exception, as it might be swallowed
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}
package com.stg.shdb2.dao;
import java.util.List;
import net.sf.gilead.core.hibernate.HibernateUtil;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.apache.cxf.service.invoker.SessionFactory;
import com.stg.shdb2.beans.User;
import com.stg.shdb2.utils.HibernateUtils;
public class DataConnect {
Session sess;
public void insertDetails(User user){
try{
sess = (Session) HibernateUtils.getSessionFactory();
Transaction tx = sess.beginTransaction();
sess.save(user);
System.out.println("Data Inserted in user_details");
tx.commit();
sess.close();
}
catch(Exception exep){
exep.printStackTrace();
}
}
@SuppressWarnings("unchecked")
public List<User> list() {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
List<User> user = null;
try {
user = (List<User>) session.createQuery("from user_data").list();
} catch (HibernateException e) {
e.printStackTrace();
session.getTransaction().rollback();
}
session.getTransaction().commit();
return user;
}
}
DataConnect.java
package com.stg.shdb2.utils;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
public class HibernateUtils {
private static final SessionFactory sessionFactory=buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
// Create the SessionFactory from hibernate.cfg.xml
return new AnnotationConfiguration().configure().buildSessionFactory();
} catch (Throwable ex) {
// Make sure you log the exception, as it might be swallowed
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}
package com.stg.shdb2.dao;
import java.util.List;
import net.sf.gilead.core.hibernate.HibernateUtil;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.apache.cxf.service.invoker.SessionFactory;
import com.stg.shdb2.beans.User;
import com.stg.shdb2.utils.HibernateUtils;
public class DataConnect {
Session sess;
public void insertDetails(User user){
try{
sess = (Session) HibernateUtils.getSessionFactory();
Transaction tx = sess.beginTransaction();
sess.save(user);
System.out.println("Data Inserted in user_details");
tx.commit();
sess.close();
}
catch(Exception exep){
exep.printStackTrace();
}
}
@SuppressWarnings("unchecked")
public List<User> list() {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
List<User> user = null;
try {
user = (List<User>) session.createQuery("from user_data").list();
} catch (HibernateException e) {
e.printStackTrace();
session.getTransaction().rollback();
}
session.getTransaction().commit();
return user;
}
}
package com.stg.shdb2.dao;
导入java.util.List;
导入net.sf.gilead.core.hibernate.HibernateUtil;
导入org.hibernate.hibernateeexception;
导入org.hibernate.Session;
导入org.hibernate.Transaction;
导入org.apache.cxf.service.invoker.SessionFactory;
导入com.stg.shdb2.beans.User;
导入com.stg.shdb2.utils.HibernateUtils;
公共类数据连接{
会议sess;
公共void insertDetails(用户){
试一试{
sess=(会话)HibernateUtils.getSessionFactory();
事务tx=sess.beginTransaction();
sess.save(用户);
System.out.println(“用户详细信息中插入的数据”);
tx.commit();
sess.close();
}
捕获(异常exep){
exep.printStackTrace();
}
}
@抑制警告(“未选中”)
公共列表(){
会话会话=HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
列表用户=null;
试一试{
user=(List)session.createQuery(“来自用户_数据”).List();
}捕获(休眠异常e){
e、 printStackTrace();
session.getTransaction().rollback();
}
session.getTransaction().commit();
返回用户;
}
}
您需要更改以下内容:
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
为此:
Session session = HibernateUtils.getSessionFactory().getCurrentSession();
该类的名称为HibernateUtil
,而不是HibernateUtil