自己的代码魔改太多起不到简单易懂的效果，我还是直接上原来的人的代码吧。
代码结构如下：
1、pom.xml中加入以下依赖：
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
2、applicationContext.xml配置如下：
<?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="configurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>/mail.properties</value>
</list>
</property>
</bean>
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />
<bean id="MailSenderDemo" class="com.mail.MailSenderDemo">
</bean>
</beans>
3、mail.properties如下：主要是邮箱服务器、个人邮箱用户名和开启smtp服务后获得的授权码（非密码），
mail.host=smtp.163.com
mail.username=*****@163.com
mail.password=******
4、spring-mail.xml如下：
<?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="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${mail.host}"></property>
<property name="javaMailProperties">
<props>
<prop key="mail.smtp.auth">true</prop>
<prop key="mail.smtp.timeout">25000</prop>
</props>
</property>
<property name="username" value="${mail.username}"></property>
<property name="password" value="${mail.password}"></property>
</bean>
</beans>
5.MailSenderDemo.java如下：
public class MailSenderDemo { @Autowired private JavaMailSender mailSender; public void send(SimpleMailMessage mail){ mailSender.send(mail); } }
6、测试类SendTest.java如下：
public class SendTest { public static void main(String[] args) { ApplicationContext ac = new ClassPathXmlApplicationContext("spring-mail.xml", "applicationContext.xml"); MailSenderDemo sender = (MailSenderDemo)ac.getBean("MailSenderDemo"); SimpleMailMessage mail = new SimpleMailMessage(); mail.setTo("gu.erlei@ustcinfo.com");//收件人邮箱地址 mail.setFrom("gu.erlei@ustcinfo.com");//收件人 mail.setSubject("spring自带javamail发送的邮件");//主题 mail.setText("hello this mail is from spring javaMail ");//正文 sender.send(mail); } }
结果
