Struts + spring + hibernate integration (4)

Use transactions for management

JavaBean

@Entity@GenericGenerator(name="uid",strategy="uuid")public class Person {@Id@GeneratedValuepublic int getId() {return id;}public void setId(int id) {this.id = id;}@Columnpublic String getName() {return name;}public void setName(String name) {this.name = name;}private int id;private String name;}

Business Logic

public class Base {private HibernateTemplate hibernateTemplate;@Resource(name="hibernateTemplate")public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {this.hibernateTemplate = hibernateTemplate;}public HibernateTemplate getHibernateTemplate() {return hibernateTemplate;}}@Component("personDao")public class PersonDaoImpl extends Base implements PersonDao {@SuppressWarnings("unchecked")public Person checkUser(final int id ,final String username){final String sql = "from Person p where p.id =? and p.name =?"; return this.getHibernateTemplate().execute(new HibernateCallback<Person>(){public Person doInHibernate(Session arg0)throws HibernateException, SQLException {   Query query = arg0.createQuery(sql).setInteger(0,id).setString(1,username);      return  (Person) query.list().get(0);}  }); }}

Service Layer

@Component("personService")public class PersonServiceImpl implements PersonService {private PersonDao personDao;public Person check(int id, String username) {return getPersonDao().checkUser(id,username);}@Resource(name="personDao")public void setPersonDao(PersonDao personDao) {this.personDao = personDao;}public PersonDao getPersonDao() {return personDao;} }

Control Layer action

@Component("LoginAction")@Scope(value="prototype")public class LoginAction extends ActionSupport implements ModelDriven<Person>{private PersonService personService;private Person person;@Overridepublic String execute() throws Exception {     this.getPersonService().check(person.getId(),person.getName());return SUCCESS;}@Resource(name="personService")public void setPersonService(PersonService personService) {this.personService = personService;}public PersonService getPersonService() {return personService;}public Person getModel() {if(person==null)      person= new Person();return person;}}

Applicationcontext. xml

<Context: component-scan base-package = "com. zzia"/> <! -- Configure the data source --> <bean id = "datasource" class = "com. mchange. v2.c3p0. combopooleddatasource "> <property name =" user "value =" root "> </property> <property name =" password "value =" 123 "> </property> <property name = "driverclass" value = "com. mySQL. JDBC. driver "> </property> <property name =" jdbcurl "value =" JDBC: mysql: // localhost: 3306/test "> </property> </bean> <! -- Configure sessionfactory --> <bean id = "sessionfactory" class = "org. springframework. orm. hibernate3.annotation. annotationsessionfactorybean "> <property name =" datasource "ref =" datasource "> </property> <! -- <Property name = "annotatedclasses"> <list> <value> COM. zzia. po. person </value> </List> </property> achieves the same effect as packagetoscan --> <property name = "packagestoscan"> <list> <value> COM/zzia/PO </ value> </List> </property> <property name = "hibernateproperties"> <props> <prop key = "hibernate. dialect "> Org. hibernate. dialect. mysqldialect </prop> <prop key = "current_session_context_class"> thread </prop> <prop key = "hibernate. show_ SQL "> true </Prop> <prop key = "hibernate. format_ SQL "> true </prop> <prop key =" hibernate. hbm2ddl. auto "> Update </prop> </props> </property> </bean> <! -- Configure hibernatetemplate --> <bean id = "hibernatetemplate" class = "org. springframework. orm. hibernate3.hibernatetemplate "> <property name =" sessionfactory "ref =" sessionfactory "> </property> </bean> <! -- Manage transactions --> <bean id = "transactionmanager" class = "org. springframework. orm. hibernate3.hibernatetransactionmanager "> <property name =" sessionfactory "ref =" sessionfactory "> </property> </bean> <! -- Configure a notification for a transaction --> <TX: Advice id = "txadvice" transaction-Manager = "transactionmanager"> <TX: Attributes> <! -- The method starts with get and does not use transactions --> <TX: method name = "get *" Read-Only = "true" propagation = "not_supported"/> <! -- Other methods are performed by default transactions --> <TX: method name = "*" Read-Only = "false" propagation = "required"/> </TX: attributes> </TX: Advice> <AOP: config> <! -- Cut --> <AOP: pointcut expression = "execution (* COM. zzia. daoimpl. *. * (..)" id = "cut"/> <! -- Cut --> <AOP: Advisor advice-ref = "txadvice" id = "Advisor" pointcut-ref = "cut"/> </AOP: config>