Spring Boot中发送邮件步骤

Spring Boot中发送邮件具体的使用步骤如下

1、添加Starter模块依赖2、添加Spring Boot配置(QQ/网易系/Gmail)3、调用JavaMailSender接口发送邮件

添加Starter模块依赖

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

添加Spring Boot配置

在application.yml中添加邮件相关的配置，这里分别罗列几个常用邮件的配置比如QQ邮箱、网易系邮箱、Gmail邮箱。

QQ邮箱配置

详细的配置如下：

spring: mail: host: smtp.qq.com #发送邮件服务器 username: xx@qq.com #QQ邮箱 password: xxxxxxxxxxx #客户端授权码 protocol: smtp #发送邮件协议 properties.mail.smtp.auth: true properties.mail.smtp.port: 465 #端口号465或587 properties.mail.display.sendmail: Javen #可以任意 properties.mail.display.sendname: Spring Boot Guide Email #可以任意 from: xx@qq.com #与上面的username保持一致

说明：开启SSL时使用587端口时无法连接QQ邮件服务器

网易系(126/163/yeah)邮箱配置

详细的配置如下：

spring: mail: host: smtp.126.com username: xx@126.com password: xxxxxxxx protocol: smtp properties.mail.smtp.auth: true properties.mail.smtp.port: 994 #465或者994  from: xx@126.com#与上面的username保持一致

特别说明：

126邮箱SMTP服务器地址:smtp.126.com,端口号:465或者994163邮箱SMTP服务器地址:smtp.163.com,端口号:465或者994yeah邮箱SMTP服务器地址:smtp.yeah.net,端口号:465或者994

调用JavaMailSender接口发送邮件

常用几种邮件形式接口的封装

import javax.mail.MessagingException;public interface IMailService { /** * 发送文本邮件 * @param to * @param subject * @param content */ public void sendSimpleMail(String to, String subject, String content); /** * 发送HTML邮件 * @param to * @param subject * @param content * @throws MessagingException */ public void sendHtmlMail(String to, String subject, String content) throws MessagingException; /** * 发送带附件的邮件 * @param to * @param subject * @param content * @param filePath * @throws MessagingException */ public void sendAttachmentsMail(String to, String subject, String content, String filePath) throws MessagingException;

再写一个组件实现上面的接口并注入JavaMailSender

@Componentpublic class IMailServiceImpl implements IMailService { @Autowired private JavaMailSender mailSender; @Value("${spring.mail.from}") private String from; }

发送文本邮件

 /** * 发送文本邮件 * @param to * @param subject * @param content */ @Override public void sendSimpleMail(String to, String subject, String content) { SimpleMailMessage message = new SimpleMailMessage(); message.setFrom(from); message.setTo(to); message.setSubject(subject); message.setText(content); mailSender.send(message); } 

发送html邮件

 /** * 发送HTML邮件 * @param to * @param subject * @param content */ @Override public void sendHtmlMail(String to, String subject, String content) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message, true); helper.setFrom(from); helper.setTo(to); helper.setSubject(subject); helper.setText(content, true); mailSender.send(message); }

发送带附件的邮件

 /** * 发送带附件的邮件 * @param to * @param subject * @param content * @param filePath */ public void sendAttachmentsMail(String to, String subject, String content, String filePath) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message, true); helper.setFrom(from); helper.setTo(to); helper.setSubject(subject); helper.setText(content, true); FileSystemResource file = new FileSystemResource(new File(filePath)); String fileName = filePath.substring(filePath.lastIndexOf(File.separator)); helper.addAttachment(fileName, file); mailSender.send(message); }

发送正文中有静态资源的邮件

/** * 发送正文中有静态资源的邮件 * @param to * @param subject * @param content * @param rscPath * @param rscId */ public void sendResourceMail(String to, String subject, String content, String rscPath, String rscId) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message, true); helper.setFrom(from); helper.setTo(to); helper.setSubject(subject); helper.setText(content, true); FileSystemResource res = new FileSystemResource(new File(rscPath)); helper.addInline(rscId, res); mailSender.send(message); }

测试

package com.javen.controller;import com.javen.email.impl.IMailServiceImpl;import com.javen.vo.JsonResult;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import org.thymeleaf.TemplateEngine;import org.thymeleaf.context.Context;@RestController@RequestMapping("/email")public class EmailController { @Autowired private IMailServiceImpl mailService;//注入发送邮件的各种实现方法 @Autowired private TemplateEngine templateEngine;//注入模板引擎 /** * 发送普通的邮件 */ @RequestMapping public JsonResult index(){ try { mailService.sendSimpleMail("xxx@126.com","SpringBoot Email","这是一封普通的SpringBoot测试邮件"); }catch (Exception ex){ ex.printStackTrace(); return new JsonResult(-1,"邮件发送失败!!"); } return new JsonResult(); } /** * 发送html的邮件 */ @RequestMapping("/htmlEmail") public JsonResult htmlEmail(){ try { mailService.sendHtmlMail(""xxx@126.com","触手可及","<body style=\"text-align: center;margin-left: auto;margin-right: auto;\">\n" + " <div id=\"welcome\" style=\"text-align: center;position: absolute;\" >\n" +" <h3>欢迎使用IJPay -By Javen</h3>\n" +" <span>;/span>" + " <div\n" + " style=\"text-align: center; padding: 10px\"><a style=\"text-decoration: none;\" href=\"\" target=\"_bank\" ><strong>IJPay 让支付触手可及,欢迎Start支持项目发展:)</strong></a></div>\n" + " <div\n" + " style=\"text-align: center; padding: 4px\">如果对你有帮助,请任意打赏</div>\n" + " <img width=\"180px\" height=\"180px\"\n" + " src=\"\">\n" + " </div>\n" + "</body>"); }catch (Exception ex){ ex.printStackTrace(); return new JsonResult(-1,"邮件发送失败!!"); } return new JsonResult(); } /** * 发送附件的邮件 */ @RequestMapping("/attachmentsMail") public JsonResult attachmentsMail(){ try { String filePath = "/Users/Javen/Desktop/IJPay.png"; mailService.sendAttachmentsMail("xxx@126.com", "这是一封带附件的邮件", "邮件中有附件，请注意查收！", filePath); }catch (Exception ex){ ex.printStackTrace(); return new JsonResult(-1,"邮件发送失败!!"); } return new JsonResult(); }  }

使用 Spring Boot 发送邮件到这里就介绍完了。个人能力有限如有错误欢迎指正。你有更好的解决方案或者建议欢迎一起交流讨论，如有疑问欢迎留言。