在工程中經常有發送郵件的任務,如果使用JavaMail來發送郵件,用到的代碼較多,過程和細節也相對復雜,而使用Spring的MailSender能相對簡單方便些,這樣使程序員能更快捷的完成郵件發送任務。下面請看示例代碼:
注意在執行代碼前,請確認已經將activation.jar,commons-logging-1.0.4.jar,mail.jar和spring.jar載入工程。
1.抽象郵件發送類BaseMailSender代碼;
package com.heyang.tool.mailsender;
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;
/** *//**
* 抽象父類,定義了發送郵件的函數,取得getMailSender函數留待子類實現
* @author: 何楊([email protected])
* @date: 2008-8-6-下午03:11:38
*/
public abstract class BaseMailSender{
protected String userName;
protected String password;
protected String stmpServer;
protected String senderEmailAddr;
/** *//**
* 取得郵件發送者,留待子類實現
* @return
*/
protected abstract MailSender getMailSender();
/** *//**
* 發送郵件
* @param from :寄信人郵件地址
* @param to :收信人郵件地址
* @param subject :郵件標題
* @param concept :郵件內容
*/
public final void sendMail(String to,String subject,String concept){
SimpleMailMessage msg=new SimpleMailMessage();
msg.setFrom(senderEmailAddr);
msg.setTo(to);
msg.setSubject(subject);
msg.setText(concept);
MailSender sender=getMailSender();
sender.send(msg);
}
public void setPassword(String password) {
this.password = password;
}
public void setSenderEmailAddr(String senderEmailAddr) {
this.senderEmailAddr = senderEmailAddr;
}
public void setStmpServer(String stmpServer) {
this.stmpServer = stmpServer;
}
public void setUserName(String userName) {
this.userName = userName;
}
}
二.實現類MailSenderImpl代碼。
package com.heyang.tool.mailsender;
import java.util.Properties;
import org.springframework.mail.MailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
/** *//**
* 郵件發送者實現類
* @author: 何楊([email protected])
* @date: 2008-8-6-下午03:14:49
*/
public class MailSenderImpl extends BaseMailSender{
/** *//**
* 取得郵件發送者
* @return
*/
protected MailSender getMailSender(){
JavaMailSenderImpl sender=new JavaMailSenderImpl();
// 郵件發送者郵箱SMTP服務器
sender.setHost(stmpServer);
// 郵件發送者郵箱用戶
sender.setUsername(userName);
// 郵件發送者郵箱密碼
sender.setPassword(password);
// 客戶端認證設置
Properties props = new Properties();
// 同時通過驗證
props.put("mail.smtp.auth", "true");
// 存儲發送郵件服務器的信息
props.put("mail.smtp.host", stmpServer);
// 服務器端認證設置
sender.setJavaMailProperties(props);
return sender;
}
}
三.bean.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="mailSender" class="com.heyang.tool.mailsender.MailSenderImpl" singleton="false">
<property name="userName" value="XXXXXXXXXX"/>
<property name="password" value="XXXXXXXX"/>
<property name="stmpServer" value="smtp.163.com"/>
<property name="senderEmailAddr" value="[email protected]"/>
</bean>
</beans>
四.使用示例
package com.heyang.util;
import java.util.List;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.heyang.tool.mailsender.BaseMailSender;
import com.heyang.tool.mailsender.MailSenderImpl;
/** *//**
* 異步郵件發送實用類(使用Spring的郵件發送形式)
* @author: 何楊([email protected])
* @date: 2008-8-6-下午02:43:22
*/
public final class MailUtil {
/** *//**
* 發送郵件
* @param emailAddr:收信人郵件地址
* @param mailTitle:郵件標題
* @param mailConcept:郵件內容
*/
public static void sendMail(final String emailAddr, final String mailTitle,
final String mailConcept) {
Runnable thread=new Runnable(){
public void run(){
ApplicationContext context = new ClassPathXmlApplicationContext("bean.xml");
BaseMailSender sender=(MailSenderImpl)context.getBean("mailSender");
sender.sendMail(emailAddr, mailTitle, mailConcept);
}
};
new Thread(thread).start();
}
/** *//**
* 向系統維護者發送郵件
* @param mailTitle
* @param mailConcept
*/
public static void sendMailToSupporters(final String mailTitle,
final String mailConcept){
Runnable thread=new Runnable(){
public void run(){
ApplicationContext context = new ClassPathXmlApplicationContext("bean.xml");
SupportTeam supportTeam=(SupportTeam)context.getBean("supportTeam");
BaseMailSender sender=(MailSenderImpl)context.getBean("mailSender");
List<String> mails=supportTeam.getSupporterEmails();
for(String mailAddr:mails){
sender.sendMail(mailAddr, mailTitle, mailConcept);
}
}
};
new Thread(thread).start();
}
/** *//**
* 測試郵件發送
* @param args
*/
public static void main(String[] args){
MailUtil.sendMailToSupporters("title_spring", "concept_spring");
}
}