Spring提供了一个有用的“org.springframework.mail.javamail.JavaMailSenderImpl”类，通过JavaMail API 简化邮件发送过程。这里有一个项目中使用Spring “JavaMailSenderImpl”通过Gmail SMTP服务器发送电子邮件。

File : MailMail.java

package com.yiibai.common;import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;public class MailMail
{private MailSender mailSender;public void setMailSender(MailSender mailSender) {this.mailSender = mailSender;}public void sendMail(String from, String to, String subject, String msg) {SimpleMailMessage message = new SimpleMailMessage();message.setFrom(from);message.setTo(to);message.setSubject(subject);message.setText(msg);mailSender.send(message);   }
}

File : Spring-Mail.xml

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"><bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl"><property name="host" value="smtp.gmail.com" /><property name="port" value="587" /><property name="username" value="yiibai.com@gmail.com" /><property name="password" value="password" /><property name="javaMailProperties"><props><prop key="mail.smtp.auth">true</prop><prop key="mail.smtp.starttls.enable">true</prop></props></property>
</bean><bean id="mailMail" class="com.yiibai.common.MailMail"><property name="mailSender" ref="mailSender" />
</bean></beans>

运行它

package com.yiibai.common;import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class App
{public static void main( String[] args ){ApplicationContext context = new ClassPathXmlApplicationContext("Spring-Mail.xml");MailMail mm = (MailMail) context.getBean("mailMail");mm.sendMail("from@no-spam.com","to@no-spam.com","Testing123", "Testing only \n\n Hello Spring Email Sender");}
}