Java系列--第八篇 基于Maven的SSME之定时邮件发送

mvn archetype:generate -DgroupId=com.vanceinfo.javaserial -Dar
tifactId=myaop -DarchetypeArtifactId=maven-archetype-quickstart -DpackageName=co
m.vanceinfo.javaserial

public interface IAnimal {
public void run();
public void jump();
}

public class Dog implements IAnimal{
public void run() {
System.out.println("Dog Start running...");
}
public void jump() {
System.out.println("Dog Start jumping...");
}
}

public class MyProxy implements InvocationHandler { private Object targetObject;
public Object createInstance(Object targetObj){
this.targetObject=targetObj;
return Proxy.newProxyInstance(targetObj.getClass().getClassLoader(), targetObj.getClass().getInterfaces(),this);
}
private void beforeMethod(){
System.out .println("before method..");
} private void endMethod(){
System.out .println("End method..");
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
beforeMethod();
Object obj = method.invoke(targetObject, args);
endMethod();
return obj;
}
}

public class App
{
public static void main( String[] args )
{
MyProxy myProxy = new MyProxy();
IAnimal animal =(IAnimal) myProxy.createInstance(new Dog());
animal.run();
animal.jump();
}
}

<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.2.1</version>
</dependency>

1,Go to the Build Path settings in the project properties.
2,Remove the JRE System Library
3,Add it back; Select "Add Library" and select the JRE System Library. The default worked for me.

<!-- scheduling taskExecutor -->
<bean id="schedulingEmailTaskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
<property name="corePoolSize" value="5" />
<property name="maxPoolSize" value="10" />
<property name="queueCapacity" value="25" />
</bean> <bean id="schedulingEmailJob" class="com.vanceinfo.javaserial.scheduling.SchedulingEmailJob"/> <bean id="jobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject" ref="schedulingEmailJob" />
<property name="targetMethod" value="execute" />
</bean>
<!--<bean id="schedulingCronTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean"> -->
<bean id="schedulingCronTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
<property name="jobDetail" ref="jobDetail" />
<property name="cronExpression" value="${com.vanceinfo.scheduling/jobCronExpression}" />
</bean> <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="schedulingCronTrigger" />
</list>
</property>
</bean>

Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.springframework.scheduling.quartz.CronTriggerBean] for bean with name 'mytrigger' defined in class path resource [applicationContext.xml]: problem with class file or dependent class; nested exception is java.lang.IncompatibleClassChangeError: class org.springframework.scheduling.quartz.CronTriggerBean has interface org.quartz.CronTrigger as super class查看发现spring3.0.5中org.springframework.scheduling.quartz.CronTriggerBean继承了org.quartz.CronTrigger（public class CronTriggerBeanextends CronTrigger），而在quartz2.0.2中org.quartz.CronTrigger是个接口（publicabstract interface CronTrigger extends Trigger），而在quartz1.8.5及1.8.4中org.quartz.CronTrigger是个类（publicclass CronTrigger extends Trigger），从而造成无法在applicationContext中配置触发器。这是spring3.0.5和quartz2.0.2版本不兼容的一个bug。

package com.vanceinfo.javaserial.scheduling;import java.util.Date;import org.apache.log4j.Logger;import javax.annotation.Resource;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.task.TaskExecutor;import com.vanceinfo.javaserial.services.IUserService;public class SchedulingEmailJob { @Resource(name = "schedulingEmailTaskExecutor")
private TaskExecutor taskExecutor; private IUserService userService; /**
* @return the userService
*/
public IUserService getUserService() {
return userService;
} /**
* @param userService the userService to set
*/
@Autowired
public void setUserService(IUserService userService) {
this.userService = userService;
} /**
* @return Returns the taskExecutor.
*/
public TaskExecutor getTaskExecutor() {
return taskExecutor;
} /**
* @param taskExecutor The taskExecutor to set.
*/
public void setTaskExecutor(TaskExecutor taskExecutor) {
this.taskExecutor = taskExecutor;
} private static Logger LOGGER = Logger.getLogger(SchedulingEmailJob.class); public void execute() {
Date taskStartTime = new Date();
LOGGER.info("Scheduled sending email task start! Server date time: " + taskStartTime);
taskExecutor.execute(new SchedulingEmailRunnable(userService));
Date taskEndTime = new Date();
LOGGER.info("Scheduled sending email task finish! Server date time: " + taskEndTime);
}}

package com.vanceinfo.javaserial.scheduling;import com.vanceinfo.javaserial.services.IUserService;public class SchedulingEmailRunnable implements Runnable { private IUserService userService; public SchedulingEmailRunnable(IUserService userService){
this.userService = userService;
} public void run() {
userService.getUserById(1, true);
}}

<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>

//这句很关键，因为象我们中国语言之类的，如果 encoding不对时，是会显示乱码的。
MimeMessageHelper message = new MimeMessageHelper(mimeMessage, true,"UTF-8");//这里只是一个示例，字串zh_CN我们应该根据页面语言获得
model.put("locale",org.apache.commons.lang3.LocaleUtils.toLocale("zh_CN"));

//这一句不解释，接合我前面的系列来看，可以明白为什么直接可以这样子写
@Resource(name = "messageSource")
private MessageSource messageSource; //另外在还要加上以下两句。
model.put("messages", this.messageSource);
model.put("locale",org.apache.commons.lang3.LocaleUtils.toLocale("zh_CN"));

#set($userName = ["${emailPlaceHolder.name}"])
#set($userEmail=["${emailPlaceHolder.email}"]) <p class="emailTagline">$messages.getMessage("email.Bullet1_Name",$userName.toArray(), $locale)</p>
<p>$messages.getMessage("email.Bullet2_Email",$userEmail.toArray(), $locale)</p>

<html>
<head>
<style type="text/css">
body {
margin: 0 auto;
max-width: 900px;
font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
font-size: 1em;
line-height: 1.2em;
background-color: #F5FFFF;
color: #333;
}
a,a:visited {
text-decoration: none;
color: #006699;
}
a:hover {
color: #EC891D;
}
.emailTagline {
margin-top: 2.6em;
font-size: 1.2em;
}
</style></head><body>
<a href="http://www.expediapartnercentral.com" style="outline:none;"><img src="cid:logoName"/></a>
#set($userName = ["${emailPlaceHolder.userName}"])
#set($discountStr = ["${emailPlaceHolder.drrInfo.discountStr}%"])
#set($bookStartDateStr = ["${emailPlaceHolder.drrInfo.bookStartDateStr}"])
#set($travelDatesStr = ["${emailPlaceHolder.drrInfo.travelStartDateStr}","${emailPlaceHolder.drrInfo.travelEndDateStr}"])
#set($promotionCode=["${emailPlaceHolder.drrInfo.notificationCode}"]) #if(""==$emailPlaceHolder.drrInfo.ratePlans)
#set($promotionroomsrates=[" "])
#else
#set($promotionroomsrates=["<table width='750' border='0' cellspacing='0' cellpadding='1'>
<tr><td width='240' height='30'>$messages.getMessage('roomTypeLbl',null,$locale)</td>
<td width='250'>$messages.getMessage('ratePlanLbl',null,$locale)</td>
<td width='250'>$messages.getMessage('rateTypeLbl',null,$locale)</td></tr>
#set($index=0)
#foreach($ratePlan in $emailPlaceHolder.drrInfo.ratePlans)
#if($index%2==0)
<tr style='background-color: #ebf5fb'>
<td height='30'>$ratePlan.roomType</td>
<td>$ratePlan.ratePlanName</td>
<td>$ratePlan.ratePlanType</td>
</tr>
#else
<tr>
<td height='30'>$ratePlan.roomType</td>
<td>$ratePlan.ratePlanName</td>
<td>$ratePlan.ratePlanType</td>
</tr>
#end
#set($index=$index+1)
#end
</table>"])
#end #if(""==$emailPlaceHolder.drrInfo.blackOutDates)
#set($blackoutdates=["$messages.getMessage('noBlackoutInfo',null, $locale)"])
#else
#set($blackoutdates=["<ul>
#foreach($blackOut in $emailPlaceHolder.drrInfo.blackOutDates)
#if($blackOut.startDate==$blackOut.endDate)
<li><span>$blackOut.startDateStr</span></li>
#else
<li><span>$blackOut.startDateStr</span><span>$messages.getMessage('travelDates_To',null, $locale)</span><span>$blackOut.endDateStr</span></li>
#end
#end
</ul>"])
#end <p class="emailTagline">$messages.getMessage("dotdWonAuction_1",$userName.toArray(), $locale)</p> <p>$messages.getMessage("dotdWonAuction_2",$bookStartDateStr.toArray(), $locale)</p> <p>$messages.getMessage("dotdWonAuction_3",null, $locale)</p> <p>$messages.getMessage("dotdWonAuction_Bullet1_Name",$promotionCode.toArray(), $locale)</p> <p>$messages.getMessage("dotdWonAuction_Bullet2_Discount",$discountStr.toArray(), $locale)</p> <p>$messages.getMessage("dotdWonAuction_Bullet3_BookingDates",$bookStartDateStr.toArray(), $locale)</p> <p>$messages.getMessage("dotdWonAuction_Bullet4_TravelDates",$travelDatesStr.toArray(), $locale)</p> <p>$messages.getMessage("dotdWonAuction_Bullet5_AppliesTo",$promotionroomsrates.toArray(), $locale)</p> <p>$messages.getMessage("dotdWonAuction_Bullet6_BlackoutDays",$blackoutdates.toArray(), $locale)</p></body>
</html>