sessionfactory

I am using spring and hibernate for configuration with mysql db. My we.xml file has following code : <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>WEB-INF/classes/applicationcontext.xml</param

i have an Hibernate DAO , in according with Hibernate API 3 and Spring 3.x , I use simply a sessionFactory and NOT an HibernateDaoSupport + getHibernateTemplate() - i hope this is a good choice... - Now my goal is to autowire sessionFactory into my DAO using annotations. In my spring.xml i have this: <context:component-scan base-package="data" /> Inside data package i have all my DAO and Service classes. This my simple HibernateDao : @Repository public class PersonHDAO implements PersonDAO { private SessionFactory sessionFactory; @Autowired public void setSessionFactory(SessionFactory

I'm using Hibernate with Spring on Tomcat. I've been reading and re-reading the oft pointed to JBoss wiki page on the topic, and that has been helpful. But it leaves me with some questions. The idea of starting a transaction for every request troubles me. I guess I could limit the filter to certain controllers -- maybe put all my controllers that need a transaction under a pseudo "tx" path or something. But isn't it a bad idea to use transactions if you don't know if you're going to need one? And if I'm just doing reads in some request -- reads that very likely may come from a cache -- aren't

I am currently upgrading my Hibernate version to the latest version 5.2.10. I replaced my code in the HibernateUtil for the SessionFactory creation. 4.3.11.Final (Previous) : public class HibernateUtil { private HibernateUtil() {} private static SessionFactory sessionFactory; private static Configuration configuration; public static Configuration getConfiguration() { return configuration; } private static SessionFactory buildSessionFactory() { try { if(sessionFactory == null) { configuration = new Configuration(); configuration.configure("hibernate.cfg.xml"); ServiceRegistry serviceRegistry =

sorry for bad English. I get my project started with spring-boot 1.1.8 , Encountered Exception No CurrentSessionContext configured , then I did some search， add property <property name="hibernate.current_session_context_class">org.hibernate.context.ThreadLocalSessionContext</property> could solve this problem, but how to config this property using java class? update: I changed to the Hibernate4.x Way to define SessionFactory but still got the same error, please help! Use java 1.8 and speing boot 1.1.8 here is my pom.xml <properties> <project.build.sourceEncoding>UTF-8</project.build

I'm using the reverse engineering capabilities built into the eclipse hibernate plugin to generate dao's and hbm.xml files for each table. It does it quite well but when I try to use the generated Objects I get a Could not locate SessionFactory in JNDI error. I saw a post that suggested this happens when you name your SessionFactory in the hibernate.cfg.xml file so I removed the name tag and i'm still getting the same error. This is my hibernate.cfg.xml <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http:/

Session接口 　　Session接口对于Hibernate 开发人员来说是一个最重要的接口。然而在Hibernate中，实例化的Session是一个轻量级的类，创建和销毁它都不会占用很多资源。这在实际项目中确实很重要，因为在客户程序中，可能会不断地创建以及销毁Session对象，如果Session的开销太大，会给系统带来不良影响。但值得注意的是 Session对象是非线程安全的，因此在你的设计中，最好是一个线程只创建一个Session对象。 　　在Hibernate的设计者的头脑中，他们将session看作介于数据连接与事务管理一种中间接口。我们可以将session想象成一个持久对象的缓冲区，Hibernate能检测到这些持久对象的改变，并及时刷新数据库。我们有时也称Session是一个持久层管理器，因为它包含这一些持久层相关的操作，诸如存储持久对象至数据库，以及从数据库从获得它们。请注意，Hibernate 的session不同于JSP应用中的HttpSession。当我们使用session这个术语时，我们指的是Hibernate中的session，而我们以后会将HttpSesion对象称为用户session。 　　SessionFactory 接口 　　这里用到了一个设计模式――工厂模式，用户程序从工厂类SessionFactory中取得Session的实例。