Spring Boot集成邮件服务

深碍√TFBOYSˉ_ 2022-03-08 12:20 143阅读 0赞

Spring Boot版本：2.0.6.RELEASE。  
源代码：[https://github.com/wu-boy/parker.git，parker-mail模块。][https_github.com_wu-boy_parker.git_parker-mail]

##### 1、pom.xml中添加spring-boot-starter-mail引用 #####

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

##### 2、application.yml中添加邮箱配置 #####

spring:
      mail:
        host: smtp.mxhichina.com
        username: XXX@OOO.cn
        password: 12345678

如果需要将项目发布到阿里云服务器，需要做如下配置，不然发送邮件老是失败。据说以普通SMTP的发送方式在阿里云上是不行的，阿里云是禁止使用25端口发送邮件的。

spring:
      mail:
        host: smtp.mxhichina.com
        username: XXX@OOO.cn
        password: 12345678
        properties:
          mail:
            smtp:
              ssl:
                trust: smtp.mxhichina.com
              socketFactory:
                class: javax.net.ssl.SSLSocketFactory
                port: 465
              auth: true
              starttls:
                enable: true
                required: true

##### 3、编写服务进行测试 #####

package com.wu.parker.mail.pojo.dto;
    
    import io.swagger.annotations.ApiModel;
    import io.swagger.annotations.ApiModelProperty;
    
    import javax.validation.constraints.NotBlank;
    
    /**
     * @author wusq
     * @date 2019/3/15
     */
    @ApiModel("邮件参数")
    public class MailMessageDto {
    
        @ApiModelProperty("收件人")
        @NotBlank(message = "收件人不能为空")
        private String to;
    
        @ApiModelProperty("主题")
        @NotBlank(message = "主题不能为空")
        private String subject;
    
        @ApiModelProperty("内容")
        @NotBlank(message = "内容不能为空")
        private String text;
    
        // get/set略
    }

package com.wu.parker.mail.pojo.dto;
    
    /**
     * 邮件HTML参数
     * @author wusq
     * @date 2019/3/27
     */
    public class MailHtmlMessageDto {
    
        /**
         * 收件人
         */
        private String to;
    
        /**
         * 主题
         */
        private String subject;
    
        /**
         * 参数，json字符串，例如{"id":"123"}
         */
        private String params;
    
        /**
         * 邮件模版代码，例如需要使用resource/templates/htmlTemplate.html，则mailCode是htmlTemplate
         */
        private String mailCode;
    
         // get/set略
    }

package com.wu.parker.mail.controller;
    
    import com.alibaba.fastjson.JSONObject;
    import com.wu.parker.common.web.BaseResult;
    import com.wu.parker.mail.pojo.dto.MailHtmlMessageDto;
    import com.wu.parker.mail.pojo.dto.MailMessageDto;
    import io.swagger.annotations.Api;
    import io.swagger.annotations.ApiOperation;
    import org.apache.commons.lang3.StringUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.http.HttpStatus;
    import org.springframework.mail.SimpleMailMessage;
    import org.springframework.mail.javamail.JavaMailSender;
    import org.springframework.mail.javamail.MimeMessageHelper;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    import org.thymeleaf.TemplateEngine;
    import org.thymeleaf.context.Context;
    
    import javax.mail.internet.MimeMessage;
    
    /**
     * @author wusq
     * @date 2019/3/27
     */
    @Api(description = "邮件服务")
    @RestController
    @RequestMapping("mail")
    public class MailController {
    
        private static final Logger log = LoggerFactory.getLogger(MailController.class);
    
        @Autowired
        private JavaMailSender javaMailSender;
    
        @Autowired
        private TemplateEngine templateEngine;
    
        @Value("${spring.mail.username}")
        private String from;
    
        @ApiOperation("发送邮件")
        @PostMapping("send")
        public BaseResult send(@RequestBody MailMessageDto dto){
            BaseResult result = new BaseResult();
    
            if(StringUtils.isBlank(dto.getTo())){
                result.setData(0);
                result.setMessage("缺少收信人");
                return result;
            }
    
            if(StringUtils.isBlank(dto.getSubject())){
                result.setData(0);
                result.setMessage("缺少主题");
                return result;
            }
    
            if(StringUtils.isBlank(dto.getText())){
                result.setData(0);
                result.setMessage("缺少内容");
                return result;
            }
    
            SimpleMailMessage message = new SimpleMailMessage();
            message.setFrom(from);
            message.setTo(dto.getTo());
            message.setSubject(dto.getSubject());
            message.setText(dto.getText());
    
            try {
                javaMailSender.send(message);
            } catch (Exception e) {
                result.setCode(HttpStatus.INTERNAL_SERVER_ERROR.value());
                result.setMessage(e.getMessage());
                log.error("发送邮件参数错误{}", e.getMessage());
                e.printStackTrace();
            }
            return result;
        }
    
        @ApiOperation("发送HTML格式的邮件")
        @PostMapping("send/html")
        public BaseResult sendHtml(@RequestBody MailHtmlMessageDto dto){
            BaseResult result = new BaseResult();
    
            if(StringUtils.isBlank(dto.getTo())){
                result.setData(0);
                result.setMessage("缺少收信人");
                return result;
            }
    
            if(StringUtils.isBlank(dto.getSubject())){
                result.setData(0);
                result.setMessage("缺少主题");
                return result;
            }
    
            MimeMessage mimeMessage = javaMailSender.createMimeMessage();
    
            try {
                // true表示需要创建一个multipart message
                MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
                helper.setFrom(from);
                helper.setTo(dto.getTo());
                helper.setSubject(dto.getSubject());
    
                // 创建邮件正文
                Context context = new Context();
                if(StringUtils.isNotBlank(dto.getParams())){
                    JSONObject params = JSONObject.parseObject(dto.getParams());
                    context.setVariables(params);
                }
                String text = templateEngine.process(dto.getMailCode(), context);
    
                if(StringUtils.isNotBlank(text)){
                    helper.setText(text, true);
                }else{
                    result.setData(0);
                    result.setMessage("缺少内容");
                    return result;
                }
    
                javaMailSender.send(mimeMessage);
            } catch (Exception e) {
                result.setCode(HttpStatus.INTERNAL_SERVER_ERROR.value());
                result.setMessage(e.getMessage());
                log.error("发送HTML格式的邮件参数错误{}", e.getMessage());
                e.printStackTrace();
            }
            return result;
        }
    
    }

##### 4、利用thymeleaf创建HTML模版来发送HTML格式的邮件 #####

需要引入

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

在resorces/templates下创建htmlTemplate.html

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        您好,这是验证邮件,请点击下面的链接完成验证,<br/>
        <a href="#" th:href="@{ http://www.ityouknow.com/neo/{id}(id=${id}) }">激活账号</a>
    </body>
    </html>

##### 源代码 #####

[https://github.com/wu-boy/parker.git][https_github.com_wu-boy_parker.git]  
parker-mail模块

##### 参考资料 #####

1、[springboot(十)：邮件服务][springboot]  
2、[Springboot完美解决在阿里云发布邮件的功能][Springboot]

[https_github.com_wu-boy_parker.git_parker-mail]: https://github.com/wu-boy/parker.git%EF%BC%8Cparker-mail%E6%A8%A1%E5%9D%97%E3%80%82
[https_github.com_wu-boy_parker.git]: https://github.com/wu-boy/parker.git
[springboot]: http://www.ityouknow.com/springboot/2017/05/06/springboot-mail.html
[Springboot]: https://blog.csdn.net/qq_39455116/article/details/83865661