JavaMail sending (with pictures and attachments) and receiving mail implementation details (IV)

Well, the most important step in this series of tutorials is to enter. We have understood the previous theoretical knowledge of e-mail, so we will use code to send e-mail in this blog. This is widely used in practical projects, such as sending e-mail for account activation for registration, and using e-mail for task reminder in OA projects. What we are talking about here is to use JavaMail to complete the function of sending and receiving mail.

PS: download link of this blog source code: @ L_ 419_ 0@

1. Introduction to JavaMail

JavaMail is Sun Corporation (now acquired by Oracle) a set of standard development packages provided to facilitate Java developers to realize mail sending and receiving functions in applications. It supports some common mail protocols, such as SMTP, POP3, IMAP, mime, etc. when writing mail using JavaMail API, we don't need to consider the underlying implementation details of mail, just call JavaMail development The corresponding API class in the package is OK.

JavaMail download address: https://github.com/javaee/javamail/releases 　　

① email account name and password of the sender: some mailboxes have an independent password, and others must log in with an authorization code (QQ email), which is introduced in the blog of manual experience of SMTP and POP3 protocols.