Spring + hibernate ile bir uygulama oluşturdum, ancak her zaman bu hatayı alıyorum. Bu benim hazırda bekletme ile ilk uygulamam, bazı kılavuzları okudum ama bu sorunu çözemiyorum. Nerede yanlış yapıyorum
Bu benim uygulamamın kodu
ott 05, 2014 4:03:06 PM org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
Informazioni: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@1eab16b: startup date [Sun Oct 05 16:03:06 CEST 2014]; root of context hierarchy
ott 05, 2014 4:03:06 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
Informazioni: Loading XML bean definitions from class path resource [springConfig.xml]
ott 05, 2014 4:03:08 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
ott 05, 2014 4:03:08 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.3.6.Final}
ott 05, 2014 4:03:08 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
ott 05, 2014 4:03:08 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
ott 05, 2014 4:03:09 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
ott 05, 2014 4:03:09 PM org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
ott 05, 2014 4:03:09 PM org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory
Exception in thread "main" org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread
at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:134)
at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:1014)
at coreservlets.StudentDAOImpl.create(StudentDAOImpl.java:19)
at coreservlets.MainApp.main(MainApp.java:14)
student.java
package coreservlets;
public class Student {
private Integer id;
private String name;
private Integer age;
public Integer getId(){return id;}//getId
public void setId(Integer id){this.id=id;}//setId
public String getName(){return name;}//getName
public void setName(String name){this.name=name;}//setName
public Integer getAge(){return age;}//getAge
public void setAge(Integer age){this.age=age;}//setAge
}//Student
studentDAO.java
package coreservlets;
import org.hibernate.SessionFactory;
public interface StudentDAO {
public void setSessionFactory(SessionFactory sessionFactory);
public void create(String name,Integer age);
}//StudentDAO
StudentDAOImpl.java
package coreservlets;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
@Repository
public class StudentDAOImpl implements StudentDAO {
private SessionFactory sessionFactory;
@Autowired
public void setSessionFactory(SessionFactory sessionFactory){
this.sessionFactory=sessionFactory;
}//setSessionFactory
public void create(String name,Integer age){
Session session=sessionFactory.getCurrentSession();
Student student=new Student();
student.setName(name);
student.setAge(age);
session.save(student);
}//create
}//StudentDAOImpl
MainApp.java
package coreservlets;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class MainApp {
public static void main(String[] args) {
ApplicationContext context=new ClassPathXmlApplicationContext("springConfig.xml");
StudentDAOImpl student=(StudentDAOImpl) context.getBean("studentDAOImpl");
student.create("Alessandro", new Integer(33));
}//main
}//MainApp
springConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
<context:annotation-config/>
<context:component-scan base-package="coreservlets"/>
<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/spring_hibernate"/>
<property name="username" value="root"/>
<property name="password" value="password"/>
<property name="initialSize" value="5"/>
<property name="maxTotal" value="10"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.MySQLDialect
</value>
</property>
</bean>
</beans>
sql
create table student
(
id integer not null auto_increment,
name varchar(20) not null,
age integer not null,
primary key(id)
);
sessionFactory.openSession()
, işlem devre dışı bırakılacak . Çünkü aynı seans değiller. > Sınıf hizmetine @ Patrikoko @ Baharın İşlem ek açıklamasını ekleyin doğru! şu soruya bakın: stackoverflow.com/questions/15620355/… örnek:@Transactional(readOnly = true, propagation = Propagation.REQUIRED, rollbackFor = {java.lang.Exception.class})