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一�U�新的hibernate和spring�l�合方式

quaff — Mon, 10 Apr 2006 13:01:00 GMT

为domain object注入service对象.

原理�Q�利用Hibernate3提供的PostLoadEventListener在loadHibernate实体�cȝ��时候触发PostLoadEvent事�g�Q�编写一个自定义的事件监听器�Q�注入依赖的Spring Bean对象.此方法来自于ThoughtWorks�?PerrynFowler

import org.hibernate.event.PostLoadEvent;
import org.hibernate.event.PostLoadEventListener;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;

public class SpringHibernateInjector implements PostLoadEventListener, BeanFactoryAware{

    AutowireCapableBeanFactory beanFactory;

    public void onPostLoad(PostLoadEvent event) {
        Object hibernateObject = event.getEntity();
        beanFactory.autowireBeanProperties(hibernateObject, AutowireCapableBeanFactory.AUTOWIRE_BY_NAME, false);
    }

    public void setBeanFactory(BeanFactory factory)  {
        beanFactory = (AutowireCapableBeanFactory) factory;
    }

}

<bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource">
            <ref bean="dataSource" />
        property>
        <property name="mappingResources">
            <list>
                domains.hbm.xml here
            list>
        property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">
                    org.hibernate.dialect.Oracle9Dialect
                prop>
                <prop key="hibernate.query.substitutions">
                    true 1, false 0
                prop>
                <prop key="hibernate.show_sql">falseprop>
            props>
        property>
       <property name="eventListeners">
          <map>
            <entry key="post-load">

              <bean class="yourpackage.SpringHibernateInjector"/>
            entry>
           map>
    property>
    bean>

domain object

package hibernate;

import java.util.List;

public class User {

    private UserManager userManager;

    public List getArticles() {
        return userManager.getArticleByUser(this);
    }

    public void save() {
        userManager.save(this);
    }

    public void delete() {
        userManager.delete(this);
    }

    public UserManager getUserManager() {
        return userManager;
    }

    public void setUserManager(UserManager userManager) {
        this.userManager = userManager;
    }

}

package hibernate;

public class Article {
    private User user;

    public User getUser() {
        return user;
    }

    public void setUser(User user) {
        this.user = user;
    }

}

service object

package hibernate;

import java.util.List;

public interface UserManager {
    public void save(User user);
    public void delete(User user);
    public List getArticleByUser(User user);
}

在web层可以这��L��
user.save();
user.delete();

最有用的地�Ҏ��下面所描述�?br />user.getArticles(),实际调用的是userManager.getArticleByUser(User user);
只需要在Article端配�|�many-to-one到User,而不需要User端的one-to-many到Article,利用�q�个单向的关联来查询得到列表
1.是可以实现�g�q�加载的效果,�q�且不用open session in view
2.可以分页,分页�q�个方式也比较特�?由javaeye的Prentice�|�友提出来的(一�U�传递分��参数的�Ҏ��),使用ServletFilter或Interceptor在WEB层截获分��늚�参数�Q?br />��装成一个对象，然后保存在threadlocal�?Service�q�行查询的时候可以按需从threadlocal中获得分��参数�?/p>

quaff 2006-04-10 21:01 发表评论

quaff — Fri, 03 Mar 2006 07:56:00 GMT

1.getBean("&beanname")得到的是beanname的factory对象
2.AbstractApplicationContext.refresh() 可以在spring配置文�g改动后可以调用这个方法来��h��
3.持箋补充�?...

quaff 2006-03-03 15:56 发表评论

quaff — Thu, 02 Mar 2006 12:30:00 GMT

<bean id="sendJobDetail"
        class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <property name="targetObject" ref="smsService"/>
        <property name="targetMethod" value="sendAllUnsentMessage"/>
    bean>
    <bean id="monitorJobDetail"
        class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <property name="targetObject" ref="smsClientMonitor"/>
        <property name="targetMethod" value="monitor"/>
    bean>
    <bean id="sendTrigger"
        class="org.springframework.scheduling.quartz.SimpleTriggerBean">
        <property name="jobDetail" ref="sendJobDetail"/>
        <property name="startDelay" value="${sendTrigger.startDelay}"/>
        <property name="repeatInterval" value="${sendTrigger.repeatInterval}"/>
    bean>
    <bean id="monitorTrigger"
        class="org.springframework.scheduling.quartz.CronTriggerBean">
        <property name="jobDetail" ref="monitorJobDetail"/>
        <property name="cronExpression"
            value="${monitorTrigger.cronExpression}"/>
    bean>
    <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <list>
                <ref bean="sendTrigger"/>
                <ref bean="monitorTrigger"/>
            list>
        property>
    bean>

quaff 2006-03-02 20:30 发表评论

quaff — Thu, 02 Mar 2006 12:29:00 GMT

<bean id="mailSender"
        class="org.springframework.mail.javamail.JavaMailSenderImpl">
        <property name="host" value="${mail.host}"/>
        <property name="protocol" value="${mail.transport.protocol}"/>
        <property name="username" value="${mail.username}"/>
        <property name="password" value="${mail.password}"/>
        <property name="javaMailProperties">
            <props>
                <prop key="mail.smtp.auth">trueprop>
            props>
        property>
    bean>
    <bean id="simpleMailMessage" class="org.springframework.mail.SimpleMailMessage"
        singleton="false">
        <property name="from" value="${mail.default.from}"/>
        <property name="to" value="${monitor.monitorEmail}"/>
    bean>

quaff 2006-03-02 20:29 发表评论