Spring3 and Hibernate4 annotation-type declarative transaction management

Annotated declarative transaction management refers to the method of specifying transaction management in the Java source code using annotations.

Applicationcontext-common.xml

<?xml version= "1.0" encoding= "UTF-8"?> <beans xmlns= "Http://www.springframework.org/schema/beans" xmlns: context= "Http://www.springframework.org/schema/context" xmlns:aop= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP" xmlns:tx= "Http://www.springframework.org/schema/tx" xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance" xsi: schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/ Spring-beans-3.1.xsd Http://www.springframework.org/schema/context Http://www.springframework.org/schema/context /spring-context-3.1.xsd Http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/ Spring-tx-3.1.xsd HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP http://www.springframework.org/schema/aop/ Spring-aop-3.1.xsd "> <bean id=" propertyconfigurer "class=" Org.springframework.beans.factory.config.PropertyPlaceholderConfigurer "> <property name=" Location "value="/ Web-inf/server.properties "></property> &Lt;/bean> <!--data Source--<bean id= "DataSource" class= "Com.mchange.v2.c3p0.ComboPooledDataSource" des troy-method= "Close" > <property name= "Driverclass" ><value>${jdbc.driverClassName}</value> </property> <property name= "Jdbcurl" ><value>${jdbc.url}</value></property> < Property name= "User" ><value>${jdbc.username}</value></property> <property name= "Password" ><value>${jdbc.password}</value></property> <property name= "Minpoolsize" ><value >10</value></property> <property name= "Maxpoolsize" ><value>20</value></ property> <property name= "MaxIdleTime" ><value>600</value></property> <property name= "Acquireincrement" ><value>2</value></property> <property name= "Maxstatements" >< value>0</value></property> <property name= "Maxstatementsperconnection"><value>20</value></property> <property name= "Initialpoolsize" ><value>20</ value></property> <property name= "Idleconnectiontestperiod" ><value>600</value></ property> <property name= "acquireretryattempts" ><value>30</value></property> < Property Name= "Breakafteracquirefailure" ><value>false</value></property> <property name= " Testconnectiononcheckout "><value>false</value></property> </bean> <!--session
		Factory--<bean id= "sessionfactory" class= "Org.springframework.orm.hibernate4.LocalSessionFactoryBean" > <property name= "DataSource" ref= "DataSource"/> <property name= "Packagestoscan" value= "Com.ipt.model"/> & Lt;property name= "Hibernateproperties" > <props> <prop key= "Hibernate.dialect" >org.hibernate.dialect . mysqldialect</prop> <prop key= "Hibernate.show_sql" >true</prop> <prop key= "Hibernate.format_sql" >false</prop> <prop key= "Hibernate.use_sql_comments" > false</prop> <prop key= "Hibernate.cache.use_second_level_cache" >false</prop> </props> &lt ;/property> </bean> <bean id= "TransactionManager" class= " Org.springframework.orm.hibernate4.HibernateTransactionManager "> <property name=" sessionfactory "ref=" Sessionfactory "/> </bean> <!--start Annotations to manage transactions with annotations--<tx:annotation-driven transaction-manager=" TransactionManager "/> </beans>

Add annotations in service code

Package Com.ipt.service.impl;

Import java.util.List;

Import org.springframework.transaction.annotation.Transactional;

Import Com.ipt.dao.IPersonDao;
Import Com.ipt.model.Person;
Import Com.ipt.service.PersonService;

@Transactional public
class Personserviceimpl implements Personservice {
	private Ipersondao Persondao;

	@Override
	@Transactional (Rollbackfor={exception.class}) public
	void Addperson () {person
		u1 = new Person ();
		U1.setname ("Ying Ma");
		U1.setage ();
		Persondao.save (U1);

		Person U2 = new Person ();
		U2.setname ("Wei June");
		U2.setage (a);
		Persondao.save (U2);
	}

	@Override
	@Transactional (readonly=true) public
	list<person> getpersons () {
		List<person > persons = Persondao.query ("From person",
				new object[] {});
		return persons;
	}

	Public Ipersondao Getpersondao () {
		return persondao;
	}

	public void Setpersondao (Ipersondao persondao) {
		This.persondao = Persondao;
	}
}

A little explanation

@Transactional default propagation=propagation.required, so you can omit it.

@Transactional (Readonly=true)

Readonly=true indicates that the annotated method or class simply reads the data.

Readonly=false indicates that the annotated method or class is adding and deleting data.