使用SpringBoot傳送Gmail和QQ郵箱

概述

如何使用SpringBoot傳送Gmail、QQ郵箱，傳送文字、附件和模板。

程式碼如下:

DemoApplication.java

package com.example.sendmail.demo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import
 
 org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;

@SpringBootApplication
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

    @Controller
 

    class MainController{

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

        /**
         * 傳送郵件頁面
         * @return
         */
        @GetMapping(value = {"/","/send/form"})
        public String form(Model model){
            model.addAttribute("from",username);
            return
 
 "send-form";
        }
    }

}

MailController.java

package com.example.sendmail.demo;

import lombok.RequiredArgsConstructor;
import lombok.extern.log4j.Log4j2;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.mail.MessagingException;

@Log4j2
@RestController
@RequiredArgsConstructor
@RequestMapping("/send")
public class MailController {

    private final MailService mailService;

    /**
     * 傳送文字
     * @param mailBody
     * @return
     */
    @PostMapping("/text")
    public Boolean text(@RequestBody MailBody mailBody){
        return mailService.sendText(mailBody);
    }

    /**
     * 傳送附件
     * @param mailBody
     * @param file
     * @return
     * @throws MessagingException
     */
    @PostMapping("/attach")
    public Boolean attach(@RequestParam("mailBody") MailBody mailBody,@RequestParam("file") MultipartFile file) throws MessagingException {
        mailBody.setFile(file);
        log.info("file name:{}",file.getOriginalFilename());
        log.info("mailBody:{},",mailBody.toString());
        return mailService.sendAttachment(mailBody);
    }


    /**
     * 傳送模板
     * @param mailBody
     * @return
     * @throws MessagingException
     */
    @PostMapping("/template")
    public boolean template(@RequestBody MailBody mailBody) throws MessagingException {
        return mailService.sendTemplate(mailBody);
    }

}