SpringFramework(6)

王朝java/jsp·作者佚名  2006-01-09
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二、Spring集成

1、Mail

(1)SimpleMailMessage

l 创建消息

SimpleMailMessage msg = new SimpleMailMessage();

msg.setFrom("me@mail.org");

msg.setTo("you@mail.org");

msg.setCc(new String[] {"he@mail.org", "she@mail.org"});

msg.setBcc(new String[] {"us@mail.org", "them@mail.org"});

msg.setSubject("my subject");

msg.setText("my text");

(2)MailSender

l 定义消息发送者

<bean id="mailSender"

class="org.springframework.mail.javamail.JavaMailSenderImpl">

<property name="host"><value>smtp.mail.org</value></property>

<property name="username"><value>joe</value></property>

<property name="password"><value>abc123</value></property>

</bean>

l 发送消息

MailSender sender = (MailSender) ctx.getBean("mailSender");

sender.send(msg);

2、调度(scheduling)

(1)调度程序

l 内建支持:

Ø Java 2 Timer:Timer、TimerTask

Ø Quartz:Schedulers、JobDetails、Triggers

(2)ScheduledTimerTask

l 我们想要运行的任务

public class MyTask extends TimerTask {

public void run() {

// do something

}

}

<bean id="myTask"

class="...scheduling.timer.ScheduledTimerTask">

<property name="timerTask">

<bean class="eg.MyTask"/>

</property>

<property name="delay"><value>60000</value></property>

<property name="period"><value>1000</value></property>

</bean>

包装java.util.TimerTask调度的Bean

(3)TimerFactoryBean

l 创建调度器

<bean id="scheduler"

class="...scheduling.timer.TimerFactoryBean">

<property name="scheduledTimerTasks">

<list><ref bean="myTask"/></list>

</property>

</bean>

创建一个java.util.Timer对象

l 在Bean创建时,Timer开始运行

3、JNDI

(1)JndiTemplate

l 使用JndiTemplate

Properties p = new Properties();

p.setProperty("java.naming.factory.initial",

"org.jnp.interfaces.NamingContextFactory");

p.setProperty("java.naming.provider.url",

"jnp://localhost:1099");

JndiTemplate jndi = new JndiTemplate(p);

Properties env = jndi.getEnvironment();

try {

jndi.bind("Something", something);

Object o = jndi.lookup("Something");

jndi.unbind("Something");

}

catch(NamingException e) {

...

}

(2)JndiObjectFacroryBean

l 使用Bean替代loopup

<bean id="jndiTemplate"

class="org.springframework.jndi.JndiTemplate">

<constructor-arg>

<props>

<prop key="java.naming.factory.initial">

org.jnp.interfaces.NamingContextFactory</prop>

<prop key="java.naming.provider.url">jnp://localhost:1099</prop>

</props>

</constructor-arg>

</bean>

<bean id="something"

class="org.springframework.jndi.JndiObjectFactoryBean">

<property name="jndiTemplate"><ref bean="jndiTemplate"/></property>

<property name="jndiName"><value>Something</value></property>

</bean>

Object o = ctx.getBean("something");

 
 
 
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