MailSender和SimpleMailMessage的基本用法

1、Spring发送邮件依赖于JavaMail和JAF的两个库文件：mail.jar和activation.jar

2、Spring提供的发送电子邮件的高级抽象层，向用户屏蔽了底层邮件系统的一些细节，同时代表客户端负责底层资源的处理

3、MailSender和SimpleMailMessage的基本用法：

首先定义一个借口：

package com.mail.service;

/**
 * Created with IntelliJ IDEA.
 * User: Administrator
 * Date: 12-6-12
 * Time: 下午3:37
 * To change this template use File | Settings | File Templates.
 */
public interface OrderManager {

    void placeOrder() ;
}

 实现类：

package com.mail.sender;

import com.mail.demo.Order;
import com.mail.service.OrderManager;
import org.springframework.mail.MailException;
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;

/**
 * Created with IntelliJ IDEA.
 * User: Administrator
 * Date: 12-6-12
 * Time: 下午3:39
 * To change this template use File | Settings | File Templates.
 */
public class SimpleOrderManager implements OrderManager {

    private MailSender mailSender ;

    private SimpleMailMessage simpleMailMessage ;

    public void setMailSender(MailSender mailSender) {
        this.mailSender = mailSender;
    }

    public void setSimpleMailMessage(SimpleMailMessage simpleMailMessage) {
        this.simpleMailMessage = simpleMailMessage;
    }

    public void placeOrder() {

        SimpleMailMessage simpleMailMessage1 = new SimpleMailMessage(this.simpleMailMessage); //SimpleMailMessage只能用来发送text格式的邮件
        simpleMailMessage1.setTo("[e-mail]");
        simpleMailMessage1.setText("hello,world");
        try{
            this.mailSender.send(simpleMailMessage1);
        }
        catch (MailException e){
            System.out.println(e.getMessage());
        }

    }
}

实现类完成了，要注入他的两个属性MailSender和SimpleMailMessage，配置如下：

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
        <property name="host" value="smtp.qq.com"/>
        <property name="defaultEncoding" value="UTF-8"/>
        <property name="username" value="[e-mail]"/>
        <property name="password" value="XXXXX"/>
        <property name="javaMailProperties">
            <value>
                mail.smtp.auth=true
            </value>
        </property>
    </bean>

这里是mailSender的注入，MailSender是发送邮件的主要接口，Spring为它提供的一个子接口，即：org.springframework.mail.javamail.JavaMailSender,在他的实现类中有用来发送邮件的一些配置：

host是邮箱的host，这里的是qq，username是发邮件的邮箱账号，password是密码等属性

<bean id="templateMessage" class="org.springframework.mail.SimpleMailMessage">
    <property name="from" value="[e-mail]"/>
    <property name="subject" value="welcome"/>
    </bean>

 SimpleMailMessage是值对象，封装了一些简单的属性，如from、to、subject、text等等，SimpleMailMessage只能用来发送text格式的邮件

注入SimpleOrderMessage对象：

 <bean id="orderManager" class="com.mail.sender.SimpleOrderManager">
        <property name="mailSender" ref="mailSender"/>
        <property name="simpleMailMessage" ref="templateMessage"/>
    </bean>

 

来测试一下：

public class MailTest {

    @Test
    public void main1(){
        BeanFactory beanFactory = new ClassPathXmlApplicationContext("spring-config.xml") ;

        SimpleOrderManager simpleOrderManager = (SimpleOrderManager)
                beanFactory.getBean("orderManager");
        simpleOrderManager.placeOrder();
    }
}

 运行一下就会看到邮件

评论

1 楼 jnjeC 2016-12-09  

  SimpleMailMessage simpleMailMessage1 = new SimpleMailMessage(this.simpleMailMessage);
赞一下这里，这样处理不会产生线程安全问题，网上很多例子都没注意到这点。