使用Spring Mail API发送邮件

依赖的jar包

Spring Mail API在org.springframework.mail及其子包中封装，只提供了邮件发送的封装。
spring-context-support.jar
javax.mail.jar

Spring的配置applicationContext.xml

<!--java发送邮件-->
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
        <property name="username" value="[email protected]"/>
        <property name="password" value="123"/>
        <property name="javaMailProperties">
            <props>
                <prop key="mail.smtp.auth">true</prop>
                <prop key="mail.host">mail.com</prop>
            </props>
        </property>
</bean>

JUnit测试类

//Spring注入
private JavaMailSenderImpl mailSender;

@Resource
public void setMailSender(JavaMailSenderImpl mailSender) {
    this.mailSender = mailSender;
}
@Test
public void fun() {
        // 建立邮件消息
        SimpleMailMessage mailMessage = new SimpleMailMessage();
        mailMessage.setFrom("[email protected]");
        mailMessage.setTo("[email protected]");
        mailMessage.setSubject("你好");
        mailMessage.setText("来自Spring");
        mailSender.send(mailMessage);
}