準(zhǔn)備工作

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目前大部分的郵件服務(wù)都不允許直接使用用戶名/密碼的方式在代碼種發(fā)送郵件，都是先要申請授權(quán)碼，這里以qq郵箱為例，向大家演示授權(quán)碼的申請流程，首先我們需要登陸到QQ郵箱中進(jìn)行設(shè)置

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在賬戶選項(xiàng)中開啟POP3/SMTP服務(wù)

項(xiàng)目創(chuàng)建

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接下來我們只需要創(chuàng)建springboot項(xiàng)目，由于springboot對郵件發(fā)送做了自動配置類，我們只需要加入相關(guān)的依賴就可以進(jìn)行郵件的發(fā)送了。

完成創(chuàng)建后，項(xiàng)目依賴如下

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId> </dependency> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId> </dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency>

• 配置郵箱基本信息

spring.mail.host=smtp.qq.com spring.mail.port=465 spring.mail.username=1056945048@qq.com spring.mail.password=修改自己開啟smpt服務(wù)的密碼 spring.mail.default-encoding=utf-8 spring.mail.properties.mail.smtp.socketFactoryClass=javax.net.ssl.SSLSocketFactory spring.mail.properties.mail.debug=true spring.mail.properties.mail.smtp.ssl.enable=true server.port=8092

做好這些后，springboot就會自動幫我們配置好郵件發(fā)送類，相關(guān)的配置在org.springframework.boot.autoconfigure.mail.MailSenderAutoConfiguration類中。

發(fā)送簡單郵件

package com.xzy.mail.controller;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.mail.SimpleMailMessage; import org.springframework.mail.javamail.JavaMailSender; import org.springframework.mail.javamail.MimeMessageHelper; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.thymeleaf.TemplateEngine; import org.thymeleaf.context.Context; import javax.mail.MessagingException; import javax.mail.internet.MimeMessage; import java.util.Date;/*** @author yangkun* @date 2020/5/20*/ @Controller public class EmpMailSender {@AutowiredTemplateEngine templateEngine;@AutowiredJavaMailSender javaMailSender;@RequestMapping("/send/simpleMail")public void sendSimpleMail() {//構(gòu)建郵件對象SimpleMailMessage message = new SimpleMailMessage();//郵件主題message.setSubject("這是一封測試郵件");//郵件發(fā)送者message.setFrom("1056945048@qq.com");//郵件接收者(可以有多個(gè))message.setTo("1040558262@qq.com");//郵件抄送人message.setCc("37xxxxx37@qq.com");//郵件隱秘抄送人(可以有多個(gè))message.setBcc("14xxxxx098@qq.com");//郵件發(fā)送日期message.setSentDate(new Date());//郵件正文message.setText("這是測試郵件的正文");//發(fā)送郵件javaMailSender.send(message);}@RequestMapping("/send/thymeleafMail")public void sendThymeleafMail() throws MessagingException {MimeMessage mimeMessage = javaMailSender.createMimeMessage();MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage);mimeMessageHelper.setSubject("入職歡迎");mimeMessageHelper.setSentDate(new Date());mimeMessageHelper.setFrom("1056945048@qq.com");mimeMessageHelper.setTo("1040558262@qq.com");//郵件抄送人mimeMessageHelper.setCc("3da1s44654437@qq.com");//郵件隱秘抄送人(可以有多個(gè))mimeMessageHelper.setBcc("14445545098@qq.com");Context context = new Context();context.setVariable("name", "javaboy");context.setVariable("posName", "java后端開發(fā)");context.setVariable("joblevelName","java初級工師");context.setVariable("departmentName","軟件開發(fā)部" );String text = templateEngine.process("mail.html", context);mimeMessageHelper.setText(text,true);javaMailSender.send(mimeMessage);} }

瀏覽器中輸入地址 http://localhost:8092/send/simpleMail 測試普通郵件發(fā)送

瀏覽器中輸入地址 http://localhost:8092/send/thymeleafMail 測試使用thymeleaf模板發(fā)送

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