Spring提供了一个发送电子邮件的高级抽象层，它向用户屏蔽了底层邮件系统的一些细节，同时负责低层次的代表客户端的资源处理。Spring邮件抽象层的主要包为org.springframework.mail。它包括了发送电子邮件的主要接口MailSender和 封装了简单邮件的属性如from, to,cc, subject, text的值对象叫做SimpleMailMessage。-Are provides a sending email senior abstraction layer, it to the user shielding rock-bottom mail system in details, and is responsible for low-level represent client resources processing. Are the main mail abstraction layer springframework. Org. Bag for E-mail. It includes sending email main interface MailSender and encapsulates the simple mail attributes such as gymnastics, cc, PPC, particular subject are grouped together, the value of the object is called SimpleMailMessage sites.