Teach you how to send a different message authentication code to the mailbox using java! ! ! Use springboot framework

First, demand

In the project, we often need to use the phone number / email to register, login or retrieve your password, this time on the need to send a verification code! Here I will teach you how to use java to the mailbox to send a verification code.

1, you first need mailUtils Tools

The principal tool used to encapsulate the transmission information parameters Mailbox

2, EmailService class

3, EmailServiceImpl implementation class

Five-digit random number generation, the Internet there are many ways we can find their own, there is not demonstrated.
When @Asyns ( "taskExecutor") notes asynchronous implementation will mean sendEmail method to send mail using the thread pool

thread pool configuration

4、sendCode controller类

5, test

Test postman in! !

Then mailbox will receive, retrieve the password verification code notice. Similarly other types of codes.

This is to send a verification email with a simple java code information of the matter, which involves a logical decision (to send a verification code in a different type), this is not to show, you can go think about it! ! To learn more, always more training and benefits.