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This article introduces the relevant knowledge of "how to use springboot to send mailboxes". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The first step is to add dependencies for mail

Org.springframework.boot spring-boot-starter-mail

The second step is to write the mailbox

Yml profile

Spring: # mailbox configuration mail: host: smtp.qq.com username: 2631245486@qq.com # authorization code of QQ Mail password: authorization code default-encoding: UTF-8 properties: mail: smtp: auth: true starttls: enable: true required: true

Configuration file for properties

# QQ Mail configuration # JavaMailSender email configuration spring.mail.host=smtp.qq.comspring.mail.username= user QQ Mail # QQ Mail's authorization code spring.mail.password= authorization code spring.mail.properties.mail.smtp.auth=truespring.mail.properties.mail.smtp.starttls.enable=truespring.mail.properties.mail.smtp.starttls.required=truespring.mail.default-encoding=UTF-8#163 mailbox configuration spring.mail.host=smtp.163.comspring.mail.username= user 163mailbox spring.mail. Password= mailbox password spring.mail.properties.mail.smtp.auth=truespring.mail.properties.mail.smtp.starttls.enable=truespring.mail.properties.mail.smtp.starttls.required=truespring.mail.default-encoding=UTF-8

Write two interfaces to send mail

Package www.it.com.server;import java.io.File / * * @ author wangjie:* @ version creation time: 10 am on August 27th, 2019. Description: * / public interface MailServer {/ * @ param sendUser email recipient * @ param title email title * @ param text email content * / void sendMailServer (String sendUser,String title,String text) / * * send * @ param sendUser * @ param title * @ param text * @ param file * / void sendFileMail (String sendUser,String title,String text,File file) with attached mailbox;}

Implementation of interface

Package www.it.com.server.impl;import java.io.File;import javax.mail.MessagingException;import javax.mail.internet.MimeMessage;import org.apache.logging.log4j.message.SimpleMessage;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.core.io.FileSystemResource;import org.springframework.mail.SimpleMailMessage;import org.springframework.mail.javamail.JavaMailSender;import org.springframework.mail.javamail.MimeMessageHelper;import org.springframework.stereotype.Service Import www.it.com.server.MailServer;/*** @ author wangjie:* @ version created on August 27th, 2019. Description of the class: * / @ Servicepublic class MailServerImpl implements MailServer {@ Value ("${spring.mail.username}") private String fromUser; @ Autowired private JavaMailSender javaMailSender; public String getFromUser () {return fromUser } public void setFromUser (String fromUser) {this.fromUser = fromUser;} @ Override public void sendMailServer (String sendUser, String title, String text) {/ / the entity that creates the mail is used to encapsulate the information needed to send the message SimpleMailMessage simpleMailMessage=new SimpleMailMessage () / / sender simpleMailMessage.setFrom (fromUser); / recipient simpleMailMessage.setTo (sendUser); / / title of email simpleMailMessage.setSubject (title); / / content of email simpleMailMessage.setText (text) / / send javaMailSender.send (simpleMailMessage);} @ Override public void sendFileMail (String sendUser, String title, String text, File file) {MimeMessage mimeMessage = null; try {mimeMessage = javaMailSender.createMimeMessage () / / create a mimeMessageHelper object to process mail messages with attachments: MimeMessageHelper mimeMessageHelper=new MimeMessageHelper (mimeMessage,true); mimeMessageHelper.setFrom (fromUser); mimeMessageHelper.setTo (sendUser); mimeMessageHelper.setSubject (title); mimeMessageHelper.setText (text) FileSystemResource r = new FileSystemResource (file); / / add attachment mimeMessageHelper.addAttachment ("attachment", r); javaMailSender.send (mimeMessage) } catch (MessagingException e) {/ / TODO Auto-generated catch block e.printStackTrace ();}}

Controller coding

Package www.it.com.controller;import java.io.File;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import www.it.com.server.MailServer / * * @ author wangjie: * @ version creation time: 9:52:30 * @ Description description: controller * / @ RestController () @ RequestMapping ("/ mail") public class MailController {@ Autowired private MailServer mailServer sent by email / * * send simple email * @ return * / @ RequestMapping ("/ send") public String sendMail () {/ / 2694433816 mailServer.sendMailServer ("2631245486@qq.com", "Hello", "come to your house tomorrow"); return "success" } / * send email with attachments * / @ RequestMapping ("/ sendFile") public String sendFileMail () {File file=new File ("C://Users//DELL//Desktop// Learning Materials .txt") MailServer.sendFileMail ("2631245486@qq.com", "Hello dsf", "this is the second email with attachment", file); return "success";}}

Steps to generate authorization codes

Login mailbox selection settings

Select account

Slide below to open the corresponding service selection to generate authorization codes

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