邮件发送（qq邮箱）

其他 2021-03-24 14:23:15 阅读次数: 0

1.先配置自己的邮箱，获取校验码，将自己的邮箱配置成客户端

查看：

2.配置application.yml文件

spring:
  mail:
    #发送邮件服务器
    host: smtp.qq.com
    #邮箱用户名
    username: @qq.com
    #邮箱授权码
    password: ***********
    #字符编码
    default-encoding: utf-8

3.创建一个实体类，接受前台传参数据

package com.ds.entity;

import java.io.Serializable;

public class Mail implements Serializable {

    private String mail;//邮箱账号
    private String topic;//主题
    private String message;//内容或者html页面内容
    private String fileid;//fileid

    public Mail() {
    }

    public Mail(String mail, String topic, String message, String fileid) {
        this.mail = mail;
        this.topic = topic;
        this.message = message;
        this.fileid = fileid;
    }

    public String getMail() {
        return mail;
    }

    public void setMail(String mail) {
        this.mail = mail;
    }

    public String getTopic() {
        return topic;
    }

    public void setTopic(String topic) {
        this.topic = topic;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public String getFileid() {
        return fileid;
    }

    public void setFileid(String fileid) {
        this.fileid = fileid;
    }
}

4.创建service接口

package com.ds.service;

public interface MailService {

    /**
     * 发送文本邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     */
    void sendSimpleMail(String to, String subject, String content);

    /**
     * 发送HTML邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     */
    void sendHtmlMail(String to, String subject, String content);

    /**
     * 发送带附件的邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     * @param filePath 附件
     */
    public void sendAttachmentsMail(String to, String subject, String content, String filePath);
}

5.创建serviceimpl实现类

package com.ds.service.impl;

import com.ds.service.MailService;
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 javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;

@Service
@Slf4j
public class MailServiceImpl implements MailService {


    @Autowired
    private JavaMailSender javaMailSender;

    //注入配置文件中配置的信息——>from
    @Value("${spring.mail.username}")
    private String from;


    /**
     * 发送文本邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     */
    @Override
    public void sendSimpleMail(String to, String subject, String content) {

        log.info("发送文本邮件---->");
        log.info("发送邮件至："+to);
        log.info("发送邮件主题："+subject);
        log.info("发送文本内容："+content);
        SimpleMailMessage message = new SimpleMailMessage();
        //发件人
        message.setFrom(from);
        //收件人
        message.setTo(to);
        //邮件主题
        message.setSubject(subject);
        //邮件内容
        message.setText(content);
        //发送邮件
        javaMailSender.send(message);

    }


    /**
     * 发送HTML邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     */
    @Override
    public void sendHtmlMail(String to, String subject, String content) {
        MimeMessage message = javaMailSender.createMimeMessage();
        MimeMessageHelper messageHelper;
        try {

            log.info("发送HTML邮件---->");
            log.info("发送邮件至："+to);
            log.info("发送邮件主题："+subject);
            log.info("发送文本内容："+content);

            messageHelper = new MimeMessageHelper(message,true);
            messageHelper.setFrom(from);
            messageHelper.setTo(to);
            message.setSubject(subject);
            messageHelper.setText(content,true);
            javaMailSender.send(message);
            log.info("邮件已经发送！");
        } catch (MessagingException e) {
            log.error("发送邮件时发生异常："+e);
        }
    }


    /**
     * 发送带附件的邮件
     * @param to 收件人
     * @param subject 主题
     * @param content 内容
     * @param filePath 附件
     */
    @Override
    public void sendAttachmentsMail(String to, String subject, String content, String filePath) {
        MimeMessage message = javaMailSender.createMimeMessage();
        MimeMessageHelper messageHelper;
        try {

            log.info("发送带附件邮件---->");
            log.info("发送邮件至："+to);
            log.info("发送邮件主题："+subject);
            log.info("发送文本内容："+content);

            messageHelper = new MimeMessageHelper(message,true);
            messageHelper.setFrom(from);
            messageHelper.setTo(to);
            messageHelper.setSubject(subject);
            messageHelper.setText(content,true);
            //携带附件
            FileSystemResource file = new FileSystemResource(filePath);
            if(file.exists()){//如果文件存在
                String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
                messageHelper.addAttachment(fileName,file);
            }


            javaMailSender.send(message);
            log.info("邮件加附件发送成功！");
        } catch (MessagingException e) {
            log.error("发送失败："+e);
        }
    }
}

6.创建接口调用

package com.ds.controller;


import com.ds.common.FilePath;
import com.ds.entity.File;
import com.ds.entity.Mail;
import com.ds.entity.RespBean;
import com.ds.service.FileService;
import com.ds.service.MailService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class MailController {

    @Autowired
    private JavaMailSender javaMailSender;

    @Autowired
    MailService mailService;

    @Autowired
    FileService fileService;


    @RequestMapping("/send")
    public String sendMail(){//测试用例

        SimpleMailMessage message = new SimpleMailMessage();

        message.setFrom("@qq.com");//发送人邮箱

        message.setTo("@qq.com");//收件人邮箱

        message.setSubject("11111111");//发送标题

        message.setText("笑笑笑");//发送内容

        try {
            javaMailSender.send(message);
            return "成功";
        }catch (Exception e){
            e.printStackTrace();
            return "失败";
        }

    }


    @RequestMapping("/sendSimpleMail")
    public RespBean sendSimpleMail(Mail mail){
        try {
            mailService.sendSimpleMail(mail.getMail(),mail.getTopic(),mail.getMessage());
            return RespBean.sucess("发送成功！");
        }catch (Exception e){
            e.printStackTrace();
            return RespBean.error("发送失败！");
        }
    }

    @RequestMapping("/sendHtmlMail")
    public RespBean sendHtmlMail(Mail mail){
        try {
            mailService.sendHtmlMail(mail.getMail(),mail.getTopic(),mail.getMessage());
            return RespBean.sucess("发送成功！");
        }catch (Exception e){
            e.printStackTrace();
            return RespBean.error("发送失败！");
        }
    }

    @RequestMapping("/sendFileMail")
    public RespBean sendFileMail(Mail mail){
        try {
            File file = fileService.getFileByid(mail.getFileid());
            if(file!=null){
                mailService.sendAttachmentsMail(mail.getMail(),mail.getTopic(),mail.getMessage(), FilePath.PATH+file.getPath());
            }else{
                mailService.sendAttachmentsMail(mail.getMail(),mail.getTopic(),mail.getMessage(),null);
            }

            return RespBean.sucess("发送成功！");
        }catch (Exception e){
            e.printStackTrace();
            return RespBean.error("发送失败！");
        }
    }


}

其中：RespBean是我自定义的返回实体类。

package com.ds.entity;


/*
* 公共返回对象
* */
public class RespBean {

    private long code;
    private String message;
    private Object obj;

    public RespBean() {
    }

    public RespBean(long code, String message, Object obj) {
        this.code = code;
        this.message = message;
        this.obj = obj;
    }

    public long getCode() {
        return code;
    }

    public void setCode(long code) {
        this.code = code;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Object getObj() {
        return obj;
    }

    public void setObj(Object obj) {
        this.obj = obj;
    }

    @Override
    public String toString() {
        return "RespBean{" +
                "code=" + code +
                ", message='" + message + '\'' +
                ", obj=" + obj +
                '}';
    }

    /*
    * 成功返回结果
    * */
    public static RespBean sucess(String message){
        return new RespBean(200,message,null);
    }
    /*
     * 成功返回结果
     * */
    public static RespBean sucess(String message,Object obj){
        return new RespBean(200,message,obj);
    }

    /*
     * 失败返回结果
     * */
    public static RespBean error(String message){
        return new RespBean(500,message,null);
    }
    /*
     * 失败返回结果
     * */
    public static RespBean error(String message,Object obj){
        return new RespBean(500,message,obj);
    }
}

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