SSM框架中使用邮箱服务器发送邮件

基于网易163邮箱服务器的发送邮件
相关依赖项

<dependency>
    <groupId>javax.mail</groupId>
    <artifactId>mail</artifactId>
    <version>1.4.7</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context-support</artifactId>
    <version>5.1.5.RELEASE</version>
</dependency>

Controller层代码

package com.nec.controller;
import com.nec.bean.Email;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

import static javax.mail.internet.InternetAddress.*;

@Controller
public class EmailController {


    @RequestMapping(value = "/emailsend")
    public String emailsend(@RequestParam("file") MultipartFile file,String em
            , HttpServletResponse response, HttpServletRequest request, Email email){
        //发件箱账户
        String fromAccount = "[e-mail]";
        //发件箱登录密码
        String frompasswprd = "asdf123456";
        //收件箱
        String revAccount = em;
        Properties properties = new Properties();
        properties.setProperty("mail.transport.protocol","smtp");
        properties.setProperty("mail.smtp.host","smtp.163.com");
        properties.setProperty("mail.smtp.auth","true");
        Authenticator authenticator = new Authenticator(){
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("ujiuye_1","asdf111111");
            }
        };
        //javaMail提供链接发送邮件的服务器
        //properties配置链接服务器信息
        //authenticator登录服务器的授权码
        Session session = Session.getInstance(properties, authenticator);
        session.setDebug(true);
        //邮件消息内容
        MimeMessage mimeMessage = new MimeMessage(session);
        try {
            //发件人
            mimeMessage.setFrom(new InternetAddress(fromAccount));
            //抄送给发件人
            mimeMessage.addRecipients(Message.RecipientType.CC,InternetAddress.parse(fromAccount));
            //收件人
            mimeMessage.setRecipient(Message.RecipientType.TO,new InternetAddress(revAccount));
            //消息头
            mimeMessage.setSubject(email.getTitle(),"utf8");
            //邮箱内容
            BodyPart bodyPart = new MimeBodyPart();
            bodyPart.setText(email.getContent());

            Multipart multipart = new MimeMultipart();
            multipart.addBodyPart(bodyPart);
            //添加附件
            if(file.getSize()>0){
                String path = request.getServletContext().getRealPath("upload");
                String filename = file.getOriginalFilename();
                String filePath = path+"/"+filename;
                File file1 = new File(filePath);
                try {
                    file.transferTo(file1);
                    //添加到multipart中
                    DataSource dataSource = new FileDataSource(file1);
                    bodyPart = new MimeBodyPart();
                    bodyPart.setDataHandler(new DataHandler(dataSource));
                    bodyPart.setFileName(MimeUtility.encodeText(filename));
                    multipart.addBodyPart(bodyPart);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            //发送邮件的内容
            mimeMessage.setContent(multipart);
            //发送时间
            mimeMessage.setSentDate(new Date());
            //保存设置
            mimeMessage.saveChanges();
            //邮件发送
            Transport transport = session.getTransport();
            //建立链接
            transport.connect(fromAccount,frompasswprd);
            //设置发送内容
            transport.sendMessage(mimeMessage,mimeMessage.getAllRecipients());
            transport.close();
        } catch (MessagingException e) {
            e.printStackTrace();
        }
        return "email";
    }
}

这个发送邮件的方法,可以添加附件,向后台的传过来的值有个em,是收件人的邮箱地址,通过页面的一个隐藏域来传过来
前端代码

<tr >
   <td align="right" bgcolor="#FAFAF1" height="22">收件人：</td>
   <td  align='left' bgcolor="#FFFFFF" onMouseMove="javascript:this.bgColor='#FCFDEE';" onMouseOut="javascript:this.bgColor='#FFFFFF';" height="22">
      <select name="ename" id="ename">
         <option value="-1">-选取收件人-</option>
      </select>
   </td>
</tr>

//然后是script中的代码
//因为想让下拉选框比较好看,拼接了一下,导致后面还得切掉
<script type="text/javascript" src="js/jquery-2.1.1.min.js"></script>
<script type="text/javascript">
    $(function () {
        $.post("${pageContext.request.contextPath}/selectEmployeeEmail",function (obj) {
            $(obj).each(function (index,ele) {
                $("#ename").append('<option value="'+ele.eid+'">'+ele.ename+'---'+ele.archives.email+'</option>')
            })
        },"json")
      $("#ename").change(function () {
            var value = $("#ename")[0].selectedOptions["0"].innerText
         var value = value.split("---")
         $("#email").val(value[1]);
        })

    })

</script>