Spring Boot入门系列之：五、Spring Boot整合mail

其他 2019-01-24 08:40:59 阅读次数: 0
版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/fooelliot/article/details/86567952

spring-boot-mail

开发环境

开发工具：Intellij IDEA 2018.2.6

springboot: 2.0.7.RELEASE

jdk：1.8.0_192

maven: 3.6.0

spring-boot-mail

SpringBoot 有提供发送邮件的实现，整合也非常方便只需要引入 SpringBoot 整合mail 的 starter 就可以使用 JavaMailSender 封装好的api实现发送邮件的功能。本文使用了freemarker 和thymeleaf 两种模板引擎技术来实现发送模板类型的邮件。

pom:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <groupId>com.andy</groupId>
    <artifactId>spring-boot-mail</artifactId>
    <version>1.0.7.RELEASE</version>
    <modelVersion>4.0.0</modelVersion>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>io.spring.platform</groupId>
                <artifactId>platform-bom</artifactId>
                <version>Cairo-SR6</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

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

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

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

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

        <!--生成二维码-->
        <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>core</artifactId>
            <version>3.3.3</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.7.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.0.6.RELEASE</version>
                <configuration>
                    <!--<mainClass>${start-class}</mainClass>-->
                    <layout>ZIP</layout>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>
  • 启动类

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author Leone
 * @since 2018-05-09
 **/
@SpringBootApplication
public class MailApplication {
    public static void main(String[] args) {
        SpringApplication.run(MailApplication.class, args);
    }
}
  • freemarker 模板(ftlMail.ftl)
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div style="width: 600px; text-align: left; margin: 0 auto;">
    <h3 style="color: #005da7;">您好！${(to)!""}</h3>
    <div style="border-bottom: 5px solid #005da7; height: 2px; width: 100%;"></div>
    <div style="border: 1px solid #005da7; font-size: 16px; line-height: 50px; padding: 20px;">
        <div>
            欢迎注册xxx!
        </div>
        <div style="border-bottom: 2px solid #005da7; height: 2px; width: 100%;"></div>
        <div>点击链接激活您的账号!</div>
        <div>
            <span><a href="${(content)!""}">激活</a></span>
        </div>
        <div>
            <img src="https://www.baidu.com/img/xinshouye_7c5789a51e2bfd441c7fe165691b31a1.png" alt="baidu"/>
        </div>
        <div>
            想了解更多信息，请访问 <a href="https://www.baidu.com/">https://www.baidu.com/</a>
        </div>
    </div>
</div>
</body>
</html>
  • thymeleaf 模板(htmlMail.html)
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div style="width: 600px; text-align: left; margin: 0 auto;">
    <h1>XXX</h1>
    <div style="border-bottom: 5px solid #005da7; height: 2px; width: 100%;"></div>
    <div style="border: 1px solid #005da7; font-size: 16px; line-height: 50px; padding: 20px;">
        <div>
            <p th:text="${to}+' 您好,欢迎注册xxx!!'"></p>
        </div>
        <div style="border-bottom: 2px solid #005da7; height: 2px; width: 100%;"></div>
        <div>请点击下面链接激活您的账号!</div>
        <div>
            <span><a th:href="${content}">激活</a></span>
        </div>
        <div>
            <img src="https://www.baidu.com/img/xinshouye_7c5789a51e2bfd441c7fe165691b31a1.png" alt="baidu"/>
        </div>
        <div>
            想了解更多信息，请访问 <a href="https://www.baidu.com/">https://www.baidu.com/</a>
        </div>
    </div>
</div>
</body>
</html>
  • application.yml
server:
  port: 8083
  servlet:
    path: /

spring:
  application:
    name: spring-boot-mail
  http:
    encoding:
      charset: UTF-8
      enabled: true
# JavaMailSender 邮件发送的配置 我使用的163邮箱作为发送方
  mail:
    host: smtp.163.com
    username: [email protected]
    password: xxx
    properties:
      mail:
        smtp:
          auth: true
          starttls:
            enabled: true
            required: true
    default-encoding: UTF-8


# thymeleaf 配置
  thymeleaf:
    cache: false
    prefix: classpath:/templates/thymeleaf
    suffix: .html
    mode: HTML
    encoding: UTF-8
    servlet:
      content-type: text/html
# freemarker配置
#  freemarker:
#    template-loader-path: classpath:/templates/freemarker/
#    allow-request-override: false
#    cache: false
#    suffix: .ftl
#    charset: UTF-8
#    content-type: text/html
#    check-template-location: true
#    expose-request-attributes: false
#    expose-session-attributes: false
#    expose-spring-macro-helpers: false
  • MailService.java
package com.andy.mail.service;

import freemarker.template.Template;
import lombok.extern.slf4j.Slf4j;
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 org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import org.thymeleaf.context.IContext;

import javax.mail.MessagingException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.File;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.time.LocalDate;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

/**
 * @author Leone
 * @since 2018-05-09
 **/
@Slf4j
@Service
public class MailService {

    @Value("${spring.mail.username}")
    private String from;

    @Autowired
    private JavaMailSender javaMailSender;

    @Autowired
    private TemplateEngine templateEngine;

    //    @Autowired
    private FreeMarkerConfigurer freeMarkerConfigurer;

    private static final Charset CHARSET = StandardCharsets.UTF_8;

    private static final String THYMELEAF_TEMPLATE = "/htmlMail";

    private static final String FREEMARKER_TEMPLATE = "ftlMail.ftl";

    private static final String filePath = "hello.zip";


    /**
     * 发送freemarker模板mail
     *
     * @param to
     * @param subject
     * @return
     * @throws Exception
     */
    public boolean sendFreemarkerMail(String to, String subject, String content) {
        try {
            MimeMessage mimeMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
            helper.setFrom(from);
            helper.setTo(InternetAddress.parse(to));
            helper.setSubject("[" + subject + " " + LocalDate.now() + "]");
            Map<String, Object> model = new HashMap<>();
            model.put("subject", subject);
            model.put("content", content);
            model.put("to", to);
            Template template = freeMarkerConfigurer.getConfiguration().getTemplate(FREEMARKER_TEMPLATE);
            String text = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);
            helper.setText(text, true);
            javaMailSender.send(mimeMessage);
            log.info("send mail success!");
            return true;
        } catch (Exception e) {
            log.error("send mail filed:{}", e);
            return false;
        }
    }

    /**
     * 发送thymeleaf邮件
     *
     * @param to
     * @param subject
     * @return
     * @throws Exception
     */
    public boolean sendThymeleafMail(String to, String subject, String content) {
//        String token = storage(to);
        String token = "xxx";
        try {
            MimeMessage mimeMessage = javaMailSender.createMimeMessage();
            MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, true, CHARSET.displayName());
            Map<String, Object> map = new HashMap<>();
            map.put(content, token);
            map.put("content", content);
            map.put("subject", subject);
            map.put("to", to);
            IContext context = new Context(Locale.CHINESE, map);
            String process = templateEngine.process(THYMELEAF_TEMPLATE, context);
            messageHelper.setFrom(from);
            messageHelper.setTo(to);
            messageHelper.setSubject("[" + subject + " " + LocalDate.now() + "]");
            messageHelper.setText(process, true);
            javaMailSender.send(mimeMessage);
            log.info("send mail success!");
            return true;
        } catch (Exception e) {
            log.error("send mail filed:{}", e);
            e.printStackTrace();
            return false;
        }
    }


    /**
     * 发送文本邮件
     *
     * @param to
     * @param subject
     * @param content
     */
    public boolean sendSimpleMail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(from);
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);
        try {
            javaMailSender.send(message);
            log.info("send mail success!");
            return true;
        } catch (Exception e) {
            log.error("send mail filed:{}", e);
            return false;
        }
    }

    /**
     * 发送带附件的邮件
     *
     * @param to
     * @param subject
     * @param content
     */
    public boolean sendAttachmentsMail(String to, String subject, String content) {
        MimeMessage message = javaMailSender.createMimeMessage();
        try {
            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);
            //helper.addAttachment("test"+fileName, file);

            javaMailSender.send(message);
            log.info("send mail success!");
            return true;
        } catch (MessagingException e) {
            log.error("send mail filed:{}", e);
            return false;
        }
    }


    /**
     * 发送正文中有静态资源（图片）的邮件
     *
     * @param to
     * @param subject
     * @param content
     * @param rscPath
     * @param rscId
     */
    public boolean sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId) {
        MimeMessage message = javaMailSender.createMimeMessage();

        try {
            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);

            javaMailSender.send(message);
            log.info("send mail success!");
            return true;
        } catch (MessagingException e) {
            log.error("send mail filed:{}", e);
            return false;
        }
    }

}
  • MailController.java
package com.andy.mail.controller;


import com.andy.mail.service.MailService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;

/**
 * @author Leone
 * @since 2018-05-09
 **/
@Slf4j
@Controller
@RequestMapping("/api/mail")
public class MailController {

    @Autowired
    private MailService mailService;

    private static Map<String, Object> content = new HashMap<>();

    static {
        content.put("title", "标题");
        content.put("content", "http://www.baidu.com");
        content.put("to", "[email protected]");
    }

    @ResponseBody
    @GetMapping("/send/ftl")
    public String sendFtlMain(String to, String subject, String content, HttpServletRequest request) {
        boolean flag = mailService.sendFreemarkerMail(to, subject, content);
        return String.valueOf(flag);
    }

    @ResponseBody
    @GetMapping("/send/html")
    public String sendHtmlMain(String to, String subject, String content, HttpServletRequest request) {
        boolean flag = mailService.sendThymeleafMail(to, subject, content);
        return String.valueOf(flag);
    }

    @ResponseBody
    @GetMapping("/send/simple")
    public String sendSimpleMain(String to, String subject, String content, HttpServletRequest request) {
        boolean flag = mailService.sendSimpleMail(to, subject, content);
        return String.valueOf(flag);
    }

    @ResponseBody
    @GetMapping("/send/htm")
    public String sendAttachmentsMail(String to, String subject, String content, HttpServletRequest request) {
        boolean flag = mailService.sendAttachmentsMail(to, subject, content);
        return String.valueOf(flag);
    }


    @RequestMapping("/html")
    public String helloHtml(Map<String, Object> map) {
        map.putAll(content);
        return "/htmlMail";
    }

    @RequestMapping("/ftl")
    public String helloFtl(Map<String, Object> map) {
        map.putAll(content);
        return "ftlMail";
    }

}

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