使用Spring的MailSender发送邮件

第1步：扫描邮件发送的属性配置

<context:property-placeholder location="/config/mail.properties" ignore-unresolvable="true" />

mail.properties

mailServerHost=your host
mailServerPort=25
mailUserName= your name
mailPassword= your password
mailFromAddress= xijinping@china.com

第2步：配置bean
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host">
<value>${mailServerHost}</value>
</property>
<property name="port">
<value>${mailServerPort}</value>
</property>
<property name="javaMailProperties">
<props>
<prop key="mail.smtp.auth">true</prop>
<prop key="mail.smtp.timeout">25000</prop>
</props>
</property>
<property name="username">
<value>${mailUserName}</value> <!-- 发送者用户名 -->
</property>
<property name="password">
<value>${mailPassword}</value> <!-- 发送者密码 -->
</property>
<!-- <property name="from">
 <value>${mailFromAddress}</value>
</property> -->

</bean>

第3步：注入bean

@Service
public class MailService {

@Resource
private JavaMailSender mailSender;

@Value("${mailFromAddress}")
private String mailFromAddress;

public void send(String subject,String content,String to){
SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
simpleMailMessage.setSubject(subject);
simpleMailMessage.setText(content);
simpleMailMessage.setFrom(mailFromAddress);
simpleMailMessage.setTo(to);
mailSender.send(simpleMailMessage);
}
}

第4步：调用API发送

mailService.send();

注意事项：

需要特别注意，userName是用来连接服务器的，from参数是可以手动设置的。
from和userName可以不同。

from参数也是必须的，通过@Value注解注入到Java代码中。