Java技术：SpringBoot实现邮件发送功能
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Java技术：SpringBoot实现邮件发送功能
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郵件發送功能基本是每個完整業務系統要集成的功能之一，今天小編給大家介紹一下SpringBoot實現郵件發送功能，希望對大家能有所幫助！
今天主要給大家分享簡單郵件發送、HTML郵件發送、包含附件的郵件發送三個例子，具體源碼鏈接在文章末尾，有需要的朋友可以自己下載學習一下。
1、創建一個基本的SpringBoot項目，pom文件導入發送郵件的依賴
<!--郵件發送依賴包--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mail</artifactId> </dependency> <!--freemarker制作Html郵件模板依賴包--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> </dependency>2、application.yml 文件配置配置郵件發送信息
spring: mail: host: smtp.qq.com username: xxx@qq.com #發件人郵箱 password: xxxxx #授權碼 protocol: smtp properties.mail.smtp.auth:true properties.mail.smtp.port:465#發件郵箱端口 properties.mail.display.sendmail: xiaoMing properties.mail.display.sendname: xiaoming properties.mail.smtp.starttls.enable:true properties.mail.smtp.starttls.required:true properties.mail.smtp.ssl.enable:true#是否啟用ssl default-encoding: utf-8#編碼格式 freemarker: cache:false settings: classic_compatible:true suffix: .html charset: UTF-8 template-loader-path: classpath:/templates/3、創建IEmailService 接口文件，定義郵件發送的接口
package com.springboot.email.email.service;import javax.mail.MessagingException; import java.util.List;public interface IEmailService {/*** 發送簡單文本郵件*/void sendSimpleMail(String receiveEmail, String subject, String content);/*** 發送HTML格式的郵件*/void sendHtmlMail(String receiveEmail, String subject, String emailContent) throws MessagingException;/*** 發送包含附件的郵件*/void sendAttachmentsMail(String receiveEmail, String subject, String emailContent, List<String> filePathList) throws MessagingException; }4、創建IEmailService接口的實現類EmailService.java 文件
package com.springboot.email.email.service.impl;import com.springboot.email.email.service.IEmailService; 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 javax.annotation.Resource; import javax.mail.MessagingException; import javax.mail.internet.MimeMessage; import java.io.File; import java.util.List; @Service public class EmailServiceImpl implements IEmailService {@Resourceprivate JavaMailSender mailSender;@Value("${spring.mail.username}")private String fromEmail;/*** 發送簡單文本郵件*/public void sendSimpleMail(String receiveEmail, String subject, String content) {SimpleMailMessage message = new SimpleMailMessage();message.setFrom(fromEmail);message.setTo(receiveEmail);message.setSubject(subject);message.setText(content);mailSender.send(message);}/*** 發送Html格式的郵件*/public void sendHtmlMail(String receiveEmail,String subject,String emailContent) throws MessagingException{init(receiveEmail, subject, emailContent, mailSender, fromEmail);}public static void init(String receiveEmail, String subject, String emailContent, JavaMailSender mailSender, String fromEmail) throws MessagingException {MimeMessage message= mailSender.createMimeMessage();MimeMessageHelper helper=new MimeMessageHelper(message,true);helper.setFrom(fromEmail);helper.setTo(receiveEmail);helper.setSubject(subject);helper.setText(emailContent,true);mailSender.send(message);}/*** 發送包含附件的郵件*/public void sendAttachmentsMail(String receiveEmail, String subject, String emailContent, List<String> filePathList) throws MessagingException {MimeMessage message = mailSender.createMimeMessage();//帶附件第二個參數trueMimeMessageHelper helper = new MimeMessageHelper(message, true);helper.setFrom(fromEmail);helper.setTo(receiveEmail);helper.setSubject(subject);helper.setText(emailContent, true);//添加附件資源for (String item : filePathList) {FileSystemResource file = new FileSystemResource(new File(item));String fileName = item.substring(item.lastIndexOf(File.separator));helper.addAttachment(fileName, file);}//發送郵件mailSender.send(message);} }5、新建郵件發送模板 email.html
<!DOCTYPE html> <html> <head lang="en"><meta charset="UTF-8"/><title></title><style>td {border: black 1px solid;}</style> </head> <body> <h1>工資條</h1> <table style="border: black 1px solid;width: 750px"><thead><td>序號</td><td>姓名</td><td>基本工資</td><td>在職天數</td><td>獎金</td><td>社保</td><td>個稅</td><td>實際工資</td></thead><tbody><tr><td>${salary.index}</td><td>${salary.name}</td><td>${salary.baseSalary}</td><td>${salary.inDays}</td><td>${salary.reward}</td><td>${salary.socialSecurity}</td><td>${salary.tax}</td><td>${salary.actSalary}</td></tr></tbody> </table> </body> </html>6、新建測試類，主要代碼如下
/*** 測試簡單文本文件*/ @Test public void EmailTest() {emailService.sendSimpleMail("hgmyz@outlook.com", "測試郵件", "springboot 郵件測試"); }@Test public void HtmlEmailTest() throws MessagingException {String receiveEmail = "hgmyz@outlook.com";String subject = "Spring Boot 發送Html郵件測試";String emailContent = "<h2>您好！</h2><p>這里是一封Spring Boot 發送的郵件，祝您天天開心！<img " + "src='https://p3.toutiaoimg.com/origin/tos-cn-i-qvj2lq49k0/a43f0608912a4ecfa182084e397e4b81?from=pc' width='500' height='300' /></p>" + "<a href='https://programmerblog.xyz' title='IT技術分享設社區' targer='_blank'>IT技術分享設社區</a>";emailService.sendHtmlMail(receiveEmail, subject, emailContent); }@Test public void templateEmailTest() throws IOException, TemplateException, MessagingException {String receiveEmail = "hgmyz@outlook.com";String subject = "Spring Boot 發送Templete郵件測試";//添加動態數據，替換模板里面的占位符SalaryVO salaryVO = new SalaryVO(1, "小明", 2, 9000.00, 350.06, 280.05, 350.00, 7806.00);Template template = freeMarkerConfigurer.getConfiguration().getTemplate("email.html");//將模板文件及數據渲染完成之后，轉換為html字符串Map<String, Object> model = new HashMap<>();model.put("salary", salaryVO);String templateHtml = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);emailService.sendHtmlMail(receiveEmail, subject, templateHtml); }@Test public void emailContailAttachmentTest() throws IOException, TemplateException, MessagingException {String receiveEmail = "hgmyz@outlook.com";String subject = "Spring Boot 發送包含附件的郵件測試";//添加動態數據，替換模板里面的占位符SalaryVO salaryVO = new SalaryVO(1, "小王", 2, 9000.00, 350.06, 280.05, 350.00, 7806.00);Template template = freeMarkerConfigurer.getConfiguration().getTemplate("email.html");//將模板文件及數據渲染完成之后，轉換為html字符串Map<String, Object> model = new HashMap<>();model.put("salary", salaryVO);String templateHtml = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);List<String> fileList = new ArrayList<>();fileList.add("F:\\郵件測試.docx");fileList.add("F:\\5.png");fileList.add("F:\\db.jpg");emailService.sendAttachmentsMail(receiveEmail, subject, templateHtml, fileList); }7、效果截圖
簡單文版郵件
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html文件
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包含附件的郵件
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Gitee地址：https://gitee.com/hgm1989/springboot-email.git
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