spring hibernate session

, while hibernat uses threadlocal as follows: Public static final threadlocal session = new threadlocal (); 1. Initialize a threadlocal object. threadlocal has three member Methods: Get (), set (), and initialvalue ().If initialvalue is not initialized, initialvalue returns NULL.3. Session get returns the corresponding internal thread variables based on the current thread, that is, the net. SF.

Label: Spring bundle Hibernate. Clip: One 1. What does Spring do with Propagation=propagation.supports? 2. When does Spring generate hibernatesession? 3. What are the effects, similarities and differences between Propagation=propagation.supports and Propagation=propagation.require on the generation

-TRANSACTI Onalone Here ");}return session; // Note 6, if no Note 5 is prohibited, then the generated Session is returned}Note 4, note 5 answers the above questions.So there's a b problem , check your code, whether it's in a transactional environment. since gettransaction () binds the session to Threadlocal , if a new independent thread is created, note whether

) {Resume (null, suspendedresources);throw ex;}Catch (Error Err) {Resume (null, suspendedresources);throw err;}}Else {Note 3 This process is the path that is executed when there is no transaction in the thread and the configuration is propagation= propagation.supports. This step does not generate Hibernate Session, JDBC Connection. But Preparetransactionstatus() Does a step, setting springtransactionsynchr

(From: Beginning Hibernate and spring-framework-3.0.5.RELEASE reference) In the spring and hibernate integration framework, session factory is configured as a springBean. in earlier versions, the hibernatedaosupport and hibernatetemplate classes are used. methods can be dire

In Hibernate, every time we do an operation, we are going to start the transaction, then do the data operation, then commit the transaction, close the transaction, the reason is becauseHibernate default Transaction autocommit is False, it is necessary to manually commit the transaction, and if you do not want to commit the transaction manually every time, you canHibernate.cfg.xmlSet it as transaction autocommit in my file: PropertyName = "Hibernate.co

Java.lang.IllegalStateException:No Hibernate Session bound to thread, and configuration does not allow Creati On the non-transactional one here this exception This error, the reason for the internet is a big push, anyway, I this problem is because although I in spring to configure the transaction, the result of running the error, see the configuration is not any

A recent project, with the spring MVC and hibernate3.1 Data Acquisition task function, always executes several times after the page stays in the data refresh state, the query can not be carried out, in-depth understanding of the DAO layer in the program is the Save and update method out of the problem, @Transactionalpublic void Save (E entity) {This.getsession (). Save (entity); The original wording of the project.This.gethibernatetemplate (). Save (e

Import org.hibernate.HibernateException;Import org.hibernate.Session;Import Org.hibernate.SessionFactory;Import Org.springframework.beans.factory.BeanFactory;Import Org.springframework.beans.factory.xml.XmlBeanFactory;Import Org.springframework.core.io.ClassPathResource;Import Org.springframework.core.io.Resource;public class Planmachinetest {private static final sessionfactory sessionfactory;static {try {Resource resource=new Classpathresource ("/applicationcontext.xml");Beanfactory factory=new

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June 7. Clear. " Red purple has become dust, cuckoo sound in the Shiring." The road of Mulberry hemp is endless. The beginning is known as the Taiping people.”Hibernate and Spring eclectic meet, not only the beans and beans between the lightning-like collision, but also between XML and XML in the ping water gathering. Two singular architectures, hand-lakes, not only shape the thrill of dependency injection.

Take the message system as an example1. Configure the mapping file: first you have to introduce a constrained DTD"-//hibernate/hibernate Mapping DTD 3.0//en""Http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd" >Then The 2. Core configuration FilesConfiguration of the Hibernate mapping file configure the core file o

The Spring framework accomplishes the design tasks of the business layer, and the struts framework separates the presentation layer from the business layer, while the Hibernate framework provides flexible persistence layer support. The following is a description of the three framework integration environments:1, configuration Struts2.I, import the related jar package.II, modify the Web. xml file. The core c

When learning to write OA permission management, obtain all the sub-modules of this module through the obtained parent module on the JSP page. JSP code snippet: Java code: @ Onetoworkflow (mappedby = "parent ") Public set Return children; } The Code does not set delayed loading. The error "failed to lazily initialize a collection of Role: No session or session was closed (

" p:sessionfactory-ref = "Sessionfactory" />So the focus on the above TransactionManager this bean, through the query data, a preliminary understanding, Hibernatetransactionmanager This class provides sessionfactory management, in order to achieve data synchronization, The Open and close of the hibernate session are performed inside the Hibernatetransactionmanager, and the opened Hibernaate Sesion is a

transaction context to the DOA declarative. Hibernate practices In the Spring frameworkDataSourceOr hibernateSessionFactorySuch resources can be implemented using bean in the application context. The application objects that need to access resources only need to get the reference of such pre-defined instances through bean

Learning Spring from cainiao-60 s learning Spring and Hibernate integration, 60 shibernate 1. Overview. The integration of Spring and Hibernate is a common practice in enterprise applications. The combination of Spring

SSH integration Hibernate uses spring to manage hibernate level two cache, configuring hibernate4.0 above level two cacheHibernate:Hibernate is a persistent layer framework that accesses physical databases frequently.Improve application performance by reducing the frequency of application access to physical data sources.The data in the cache is a copy of the data

1. Add the following code to the Hibernate.cfg.xml file to turn on thread safety: Specific as follows: DOCTYPE hibernate-configuration Public "-//hibernate/hibernate configuration DTD 3.0//en" "Http://www.hibernate. Org/dtd/hibernate-configuration-3.0.dtd ">hibernate-config

1. Hibernate often uses configurationUsing the Hibernate.default_schema property enables all generated tables to have a specified prefix.2. Session Brief IntroductionIt is not recommended to use the JDBC connection operation database directly, but to manipulate the database by using the session.Session can be understood as the object that operates the database. The sess