利用java api 创建excel 内容并发送邮件

主要实现功能:

1.通过配置文件设置发送邮件发送方，接收方，抄送方 2.目前实现了 自定义发送内容 3.实现了excel 邮件发送内容 

核心代码 (SendMailManager ) :

package com.javatool.email.proxy; import com.javatool.configer.DefaultConfigerContext; import com.javatool.email.model.MailAuthenticator; import com.javatool.email.model.SendMailConfigModel; import javax.mail.*; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeBodyPart; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeMultipart; import java.util.Date; import java.util.List; import java.util.Properties; /** * @author haisong * @create 2018/09/13 14:21 */ public class SendMailManager { /** * 发送邮件 * @param subject 邮件主题 * @param content 邮件内容 * @return success 发送成功 failure 发送失败 * @throws Exception */ public static String sendMail( String subject, String content) throws Exception { SendMailConfigModel sendMailConfigModel = DefaultConfigerContext.getInstance().getModelFromProperties(SendMailConfigModel.class); String to = sendMailConfigModel.getTo(); if (to != null){ Properties props = System.getProperties(); props.put("mail.smtp.host", sendMailConfigModel.getMail_smtp_host()); props.put("mail.smtp.auth", "true"); props.put("mail.transport.protocol", "smtp"); MailAuthenticator auth = new MailAuthenticator(); Session session = Session.getInstance(props, auth); session.setDebug(true); try { MimeMessage message = new MimeMessage(session); message.setFrom(new InternetAddress(sendMailConfigModel.getFrom())); if (!to.trim().equals("")) { message.addRecipient(Message.RecipientType.TO, new InternetAddress(to.trim())); } List<String> copyToList = sendMailConfigModel.getCopyToList(); if(copyToList!=null&&copyToList.size()>0) { Address[] addresses = new Address[copyToList.size()]; int i = 0; for (String copy : copyToList) { addresses[i] = new InternetAddress(copy); i++; } message.addRecipients(Message.RecipientType.CC, addresses); } message.setSubject(subject); MimeBodyPart mbp1 = new MimeBodyPart(); // 正文 mbp1.setContent(content, "text/html;charset=utf-8"); Multipart mp = new MimeMultipart(); // 整个邮件：正文+附件 mp.addBodyPart(mbp1); message.setContent(mp); message.setSentDate(new Date()); message.saveChanges(); Transport trans = session.getTransport("smtp"); // trans.connect("smtp.163.com", sendMailConfigModel.getUser(), sendMailConfigModel.getPassword()); trans.send(message); System.out.println(message.toString()); } catch (Exception e){ e.printStackTrace(); return "failure"; } return "success"; }else{ return "failure"; } } public static String SendExcelMail(String subject,List<List<String>> conteList) throws Exception { String htmlStr =""; for(int i=0;i<conteList.size();i++){ htmlStr = createHTML(htmlStr,conteList.get(i),i==0?true:false,i==conteList.size()-1?true:false); } String result = sendMail(subject,htmlStr); return result; } private static String createHTML(String originHtml, List<String> data,boolean headFlage,boolean endFlage) { String html_msg=""; if(headFlage){ html_msg = "<table border=\"1\" width='80%' height='80'>"; html_msg = html_msg+"<tr bgcolor='#B6DDE6'>"; for(int column=0;column<data.size();column++){ html_msg = html_msg +"<td width='12%'>"+data.get(column)+"</td>"; } html_msg = html_msg+"</tr>"; }else{ html_msg = html_msg+"<tr>"; for(int column=0;column<data.size();column++){ html_msg = html_msg +"<td>"+data.get(column)+"</td>"; } html_msg = html_msg+"</tr>"; } if(endFlage){ html_msg = html_msg + "</table>"; } return originHtml+html_msg; } } 

配置文件内容 :

sendMail.mail_smtp_host=smtp.163.com sendMail.mail_smtp_auth=login sendMail.user=***@163.com sendMail.password=****** sendMail.from=*****@163.com sendMail.to=auguszero@163.com 

excel 邮件发送实例图:

如果你觉得可以 可以直接在github 上将该项目打包好 进行引入 作为工具类 。

同时欢迎大家一起来完善这个github项目 。
欢迎一起交流: