參考文章：http://blog.csdn.net/qq_33556185/article/details/51028952

import javax.mail.internet.MimeMessage;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import 
 
org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody
 
;

import java.io.File;
import java.util.Properties;

@Controller
@RequestMapping("/api")

public class SendMailController {
    @RequestMapping(value = "/sendmsg", method = RequestMethod.GET)
    @ResponseBody
     public String sendMessage(@RequestParam String mail){

        JavaMailSenderImpl senderImpl = new 
 
JavaMailSenderImpl();
        // 設定mail server
        senderImpl.setHost("smtp.qq.com");
        senderImpl.setUsername("*******@qq.com"); // 根據自己的情況,設定username
        senderImpl.setPassword("********"); // 根據自己的情況, 設定password，注意qq郵箱的話此處設定16位授權碼，不是郵箱密碼，切記！
        //加認證機制
        Properties javaMailProperties = new Properties();
        javaMailProperties.put("mail.smtp.auth", true);
        javaMailProperties.put("mail.smtp.starttls.enable", true);
        javaMailProperties.put("mail.smtp.timeout", 5000);
        senderImpl.setJavaMailProperties(javaMailProperties);

        // 建立郵件訊息
        SimpleMailMessage mailMessage = new SimpleMailMessage();
        // 設定收件人，寄件人 用陣列傳送多個郵件
        // String[] array = new String[] {"[email protected]","[email protected]"};
        // mailMessage.setTo(array);
        mailMessage.setTo("**********@qq.com");
        mailMessage.setFrom("*********@qq.com ");
        mailMessage.setSubject(" 測試簡單文字郵件傳送！ ");
        mailMessage.setText(" 測試我的簡單郵件傳送機制！！ ");

        // 傳送郵件
        senderImpl.send(mailMessage);

        System.out.println(" 郵件傳送成功.. ");
        return "haHa";
    }

     //有附件的郵件傳送
    @RequestMapping(value = "/sendPht", method = RequestMethod.GET)
    @ResponseBody
    public String sendPht(@RequestParam String filePath)throws Exception{
         JavaMailSenderImpl javaMailSender = new JavaMailSenderImpl();
         javaMailSender.setHost("smtp.qq.com");
         javaMailSender.setUsername("**********@qq.com");
         javaMailSender.setPassword("**********");

         Properties javaMailProperties = new Properties();
         javaMailProperties.put("mail.smtp.auth", true);
         javaMailProperties.put("mail.smtp.starttls.enable", true);
         javaMailProperties.put("mail.smtp.timeout", 5000);
         javaMailSender.setJavaMailProperties(javaMailProperties);

        //使用JavaMail的MimeMessage，支付更加複雜的郵件格式和內容
        MimeMessage msg = javaMailSender.createMimeMessage();
        //建立MimeMessageHelper物件，處理MimeMessage的輔助類
        MimeMessageHelper helper = new MimeMessageHelper(msg, true);
        //使用輔助類MimeMessage設定引數
        helper.setFrom(javaMailSender.getUsername());
        helper.setTo("************@qq.com");
        helper.setSubject("Hello Attachment");
        helper.setText("This is a mail with attachment");
        //載入檔案資源，作為附件
        File file = new File(filePath);
        if(!file.exists()){
            return "檔案不存在";
        }
        //加入附件
        helper.addAttachment(file.getName(), file);
        // 傳送郵件
        javaMailSender.send(msg);
        return "HaHaHaHaHaHa";
    }
}