SpringBoot整合Mail

時間 2019-11-19

原文原文鏈接

前言

SpringBoot實現郵件功能是很是的方便快捷的，由於SpringBoot默認有starter實現了Mail。
發送郵件應該是網站的必備功能之一，什麼註冊驗證，忘記密碼或者是給用戶發送營銷信息。
最先期的時候咱們會使用JavaMail相關api來寫發送郵件的相關代碼，後來spring退出了
JavaMailSender更加簡化了郵件發送的過程，在以後springboot對此進行了封裝就有了
如今的spring-boot-starter-mail。html

1、基礎配置

1.1 引入依賴

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

1.2 獲取QQ郵箱受權碼

QQ郵箱->設置->帳戶->POP3/SMTP服務:開啓服務後會得到QQ的受權碼.java

1.3 Mail配置文件

1）qq郵箱的配置git

# JavaMailSender 郵件發送的配置
spring.mail.host=smtp.qq.com
spring.mail.username=用戶qq郵箱
#QQ郵箱的受權碼
spring.mail.password=受權碼
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.default-encoding=UTF-8

2）163郵箱配置github

spring.mail.host=smtp.163.com
spring.mail.username=用戶163郵箱
spring.mail.password=郵箱密碼
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.default-encoding=UTF-8

2、實現過程

2.1 配置文件

spring:
  #郵箱配置
  mail:
    host: smtp.qq.com
    username: 917484312@qq.com
    #QQ郵箱的受權碼
    password: 本身申請
    default-encoding: UTF-8
    properties:
      mail:
        smtp:
          auth: true
          starttls:
            enable: true
            required: true
  freemarker:
    content-type: text/html
    #後綴名
    suffix: .ftl
    template-loader-path: classpath:/templates
    charset: UTF-8
    check-template-location: true

  #freemarker配置




#設置一個郵件發送人
lance:
  mail:
    sender: 917484312@qq.com

2.2 實體Bean

/**
 * @author lance(ZYH)
 * @function  發送郵件-封裝接受者信息
 * @date 2018-07-07 13:11
 */
@Data
public class MailBean implements Serializable {
    private String recipient;   //郵件接收人
    private String subject; //郵件主題
    private String content; //郵件內容

}

2.3 發送一個簡單格式的郵件

public void sendSimpleMail(MailBean mailBean) {
        try {
            SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
            //郵件發送人
            simpleMailMessage.setFrom(MAIL_SENDER);
            //郵件接收人
            simpleMailMessage.setTo(mailBean.getRecipient());
            //郵件主題
            simpleMailMessage.setSubject(mailBean.getSubject());
            //郵件內容
            simpleMailMessage.setText(mailBean.getContent());
            javaMailSender.send(simpleMailMessage);
        } catch (Exception e) {
            logger.error("郵件發送失敗", e.getMessage());
        }
    }

2.4 發送一個HTML格式的郵件

public void sendHTMLMail(MailBean mailBean) {
        MimeMessage mimeMailMessage = null;
        try {
            mimeMailMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMailMessage, true);
            mimeMessageHelper.setFrom(MAIL_SENDER);
            mimeMessageHelper.setTo(mailBean.getRecipient());
            mimeMessageHelper.setSubject(mailBean.getSubject());
            StringBuilder sb = new StringBuilder();
            sb.append("<h1>SpirngBoot測試郵件HTML</h1>")
                    .append("\"<p style='color:#F00'>你是真的太棒了！</p>")
                    .append("<p style='text-align:right'>右對齊</p>");
            mimeMessageHelper.setText(sb.toString(), true);
            javaMailSender.send(mimeMailMessage);
        } catch (Exception e) {
            logger.error("郵件發送失敗", e.getMessage());
        }
    }

2.5 發送帶附件格式的郵件

public void sendAttachmentMail(MailBean mailBean) {
        MimeMessage mimeMailMessage = null;
        try {
            mimeMailMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMailMessage, true);
            mimeMessageHelper.setFrom(MAIL_SENDER);
            mimeMessageHelper.setTo(mailBean.getRecipient());
            mimeMessageHelper.setSubject(mailBean.getSubject());
            mimeMessageHelper.setText(mailBean.getContent());
            //文件路徑
            FileSystemResource file = new FileSystemResource(new File("src/main/resources/static/image/mail.png"));
            mimeMessageHelper.addAttachment("mail.png", file);

            javaMailSender.send(mimeMailMessage);
        } catch (Exception e) {
            logger.error("郵件發送失敗", e.getMessage());
        }
    }

效果：
spring

2.6 發送帶靜態資源的郵件

public void sendInlineMail(MailBean mailBean) {
        MimeMessage mimeMailMessage = null;
        try {
            mimeMailMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMailMessage, true);
            mimeMessageHelper.setFrom(MAIL_SENDER);
            mimeMessageHelper.setTo(mailBean.getRecipient());
            mimeMessageHelper.setSubject(mailBean.getSubject());
            mimeMessageHelper.setText("<html><body>帶靜態資源的郵件內容，這個一張IDEA配置的照片:<img src='cid:picture' /></body></html>", true);
            //文件路徑
            FileSystemResource file = new FileSystemResource(new File("src/main/resources/static/image/mail.png"));
            mimeMessageHelper.addInline("picture", file);

            javaMailSender.send(mimeMailMessage);
        } catch (Exception e) {
            logger.error("郵件發送失敗", e.getMessage());
        }
    }

2.7 發送基於Freemarker模板的郵件

public void sendTemplateMail(MailBean mailBean) {
        MimeMessage mimeMailMessage = null;
        try {
            mimeMailMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMailMessage, true);
            mimeMessageHelper.setFrom(MAIL_SENDER);
            mimeMessageHelper.setTo(mailBean.getRecipient());
            mimeMessageHelper.setSubject(mailBean.getSubject());

            Map<String, Object> model = new HashMap<String, Object>();
            model.put("content", mailBean.getContent());
            model.put("title", "標題Mail中使用了FreeMarker");
            Template template = configuration.getTemplate("mail.ftl");
            String text = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);
            mimeMessageHelper.setText(text, true);

            javaMailSender.send(mimeMailMessage);
        } catch (Exception e) {
            logger.error("郵件發送失敗", e.getMessage());
        }

    }

效果：
api

2.8 發送基於 thymeleaf爲模板的郵件

1）pom中導入thymeleaf的包springboot

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

2）在resorces/templates下建立emailTemplate.html網絡

<!DOCTYPE html>
<html lang="zh" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8"/>
        <title>Title</title>
    </head>
    <body>
        您好,這是驗證郵件,請點擊下面的連接完成驗證,<br/>
        <a href="#" th:href="@{ http://www.ityouknow.com/neo/{id}(id=${id}) }">激活帳號</a>
    </body>
</html>

3）解析模板併發送併發

@Test
public void sendTemplateMail() {
    //建立郵件正文
    Context context = new Context();
    context.setVariable("id", "006");
    String emailContent = templateEngine.process("emailTemplate", context);

    mailService.sendHtmlMail("ityouknow@126.com","主題：這是模板郵件",emailContent);
}