需要的jar包，spring相关的，mail-1.4.5.jar，activation-1.1.jar

1、spring的配置

<bean id="mailSenderImpl" class="org.springframework.mail.javamail.JavaMailSenderImpl">
		<property name="host" value="${email.host}" />
		<property name="protocol" value="smtp"/>
		<property name="port" value="25"/>
		<property name="defaultEncoding" value="UTF-8"/>
		<property name="username" value="${email.username}" />
		<property name="password" value="${email.password}" />
		<property name="javaMailProperties">
			<props>
				<prop key="mail.smtp.auth">true</prop>
				<!-- 使用gmail smtp server的必须参数 -->
				<prop key="mail.smtp.starttls.enable">true</prop>
			</props>
		</property>
	</bean>

email.host=smtp.126.com
email.servermail=kefu@126.com
email.tomail=zhongxf@126.com
email.username=kefu@126.com
email.password=aa87611606

@Autowired
	private JavaMailSender mailSenderImpl;

MimeMessage mimeMessage = mailSenderImpl.createMimeMessage();
		
		MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
		
		helper.setFrom("kefu@126.com");
		helper.setTo("zhongxf@126.com");
		
		mimeMessage.setSubject("kasdf好啊");
		mimeMessage.setText("阿斯顿发斯蒂芬", "UTF-8");
		
		//javaMailSenderImpl.send(mimeMessage);
		
		mailSenderImpl.send(mimeMessage);

老生长谈，使用spring发送mail