1
我是新的春天mvc和休眠。如何關閉連接使用會話工廠
如何在春季mvc應用中關閉連接。我對這個問題感到非常沮喪。
這是我的代碼：
調度的servlet：
<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.kqics" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />
<bean id="userService" class="com.kqics.dao.kqtraveldao">
</bean>
<bean id="viewResolver1" class="org.springframework.web.servlet.view.ResourceBundleViewResolver">
<property name="order" value="1"/>
<property name="basename" value="views"/>
</bean>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- one of the properties available; the maximum file size in bytes -->
<property name="maxUploadSize" value="10000000" />
</bean>
<import resource="db-config.xml" />
</beans>
dbconfig.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:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location"><value>/WEB-INF/jdbc.properties</value></property>
</bean>
<bean id="dataSourceBean" lazy-init="true" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass" value="${jdbc.driverClassName}" />
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}"/>
<property name="acquireIncrement" value="${jdbc.acquireIncrement}" />
<property name="minPoolSize" value="${jdbc.minPoolSize}" />
<property name="maxPoolSize" value="${jdbc.maxPoolSize}" />
<property name="maxIdleTime" value="${jdbc.maxIdleTime}" />
<property name="numHelperThreads" value="${jdbc.numHelperThreads}" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
p:dataSource-ref="dataSourceBean"
p:packagesToScan="com.kqics" >
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<!-- <prop key="hibernate.hbm2ddl.auto">create</prop> -->
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.connection.release_mode">after_transaction</prop>
<prop key="hibernate.connection.shutdown">true</prop>
</props>
</property>
</bean>
<!-- Transaction manager for a single Hibernate SessionFactory (alternative to JTA) -->
<tx:annotation-driven/>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ><ref bean="sessionFactory"/></property>
</bean>
</beans>
我的服務類：
@Service
public class kqtravellogservice implements ikqtravellogservice {
@Autowired
ikqtraveldao iDao;
@Transactional
public void serviceaddnewvehicle(kqvehicle obj) {
// TODO Auto-generated method stub
iDao.addnewvehicle(obj);
}
@Transactional
public List<kqvehicle> servicefetchallvehicle() {
return iDao.fetchallvehicle();
}
@Transactional
public void serviceaddnewvehicletariff(kqvehicletariff obj,String tariff) {
iDao.addnewvehicletariff(obj,tariff);
}
道IMPL
public class kqtraveldao implements ikqtraveldao {
private HibernateTemplate hibernateTemplate;
@Autowired
public void setSessionFactory(SessionFactory sessionFactory) {
try {
hibernateTemplate = new HibernateTemplate(sessionFactory);
} catch (Exception w) {
}
}
@Override
public void addnewvehicle(kqvehicle obj) {
hibernateTemplate.save(obj);
}
@SuppressWarnings("unchecked")
@Override
public List<kqvehicle> fetchallvehicle() {
List<kqvehicle> li=null;
li=hibernateTemplate.find("from kqvehicle");
return li;
}
@Override
public void addnewvehicletariff(kqvehicletariff obj, String tariff) {
try
{
hibernateTemplate.getSessionFactory()
.openSession()
.createSQLQuery("insert into "+tariff+" values(?,?,?,?,?)")
.setParameter(0, obj.getTid())
.setParameter(1, obj.getVehicletype())
.setParameter(2, obj.getRupees())
.setParameter(3, obj.getDateupto())
.setParameter(4, obj.getDatetimedetermined())
.executeUpdate();
}
catch(Exception e)
{
}
finally
{
hibernateTemplate.getSessionFactory().close();
}
}
一些朋友，因爲我沒有使用單，關閉連接告訴我..所以，我得到了太多的連接錯誤......請諮詢我如何解決這個問題？
什麼是我的代碼需要更改....
謝謝Deinum，你能解釋一下單身對象和我們在上面代碼中使用** singleton對象**的情況。 –
你的代碼已經使用了一個單例，所以不知道你想要解釋什麼。 –
嗨Deinum，我已經改變了我的應用程序，如上所述，但現在仍然有類似的問題。我已經發布另一個查詢堆棧溢出請訪問。這個鏈接.. http://stackoverflow.com/questions/21520106/tomcat-server-not-loading-more-than-2-applications/21520369?noredirect=1#21520369 –