最近接手一个邮件发送的功能，这里记录下，供以后需要时查看或在次基础上优化开发
1.首先是添加springboot-mail的依赖包
<!--springboot-mail整合包-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
2.创建下面的邮件类 Email.java
import org.apache.commons.lang3.time.DateFormatUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.*;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.text.MessageFormat;
import java.util.*;
/**
* Created by HX on 2019/6/27.
*/
public class Email {
private static final Logger LOGGER = LoggerFactory.getLogger(Email.class);
private static String defaultSenderName = "";// 默认的发件人用户名，defaultEntity用得到
private static String defaultSenderPass = "";// 默认的发件人密码，defaultEntity用得到
private static String defaultSmtpHost = "";// 默认的邮件服务器地址，defaultEntity用得到
private String smtpHost; // 邮件服务器地址
private Integer port;//邮件服务器端口号
private String sendUserName; // 发件人的用户名
private String sendUserPass; // 发件人密码
private MimeMessage mimeMsg; // 邮件对象
private Session session;
private Properties props;
private Multipart mp;// 附件添加的组件
private List<FileDataSource> files = new LinkedList<FileDataSource>();// 存放附件文件
private void init() {
if (props == null) {
props = System.getProperties();
}
props.setProperty("mail.smtp.host", smtpHost);
props.setProperty("mail.smtp.auth", "true"); // 需要身份验证
final String smtpPort = "465";
props.setProperty("mail.smtp.port", smtpPort);
props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.setProperty("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.smtp.socketFactory.port", smtpPort);
session = Session.getInstance(props);
// 置true可以在控制台（console)上看到发送邮件的过程
session.setDebug(true);
// 用session对象来创建并初始化邮件对象
mimeMsg = new MimeMessage(session);
// 生成附件组件的实例
mp = new MimeMultipart();
}
private Email(String smtpHost,Integer port, String sendUserName, String sendUserPass, String to, String cc, String mailSubject, String mailBody,
List<String> attachments) {
this.smtpHost = smtpHost;
this.sendUserName = sendUserName;
this.sendUserPass = sendUserPass;
this.port = port;
init();
setFrom(sendUserName);
setTo(to);
setCC(cc);
setBody(mailBody);
setSubject(mailSubject);
if (attachments != null) {
for (String attachment : attachments) {
addFileAffix(attachment);
}
}
}
/**
* 邮件实体
*
* @param smtpHost
* 邮件服务器地址
* @param sendUserName
* 发件邮件地址
* @param sendUserPass
* 发件邮箱密码
* @param to
* 收件人，多个邮箱地址以半角逗号分隔
* @param cc
* 抄送，多个邮箱地址以半角逗号分隔
* @param mailSubject
* 邮件主题
* @param mailBody
* 邮件正文
* @param attachments
* 附件路径
* @return
*/
public static Email entity(String smtpHost,Integer port, String sendUserName, String sendUserPass, String to, String cc, String mailSubject, String mailBody,
List<String> attachments) {
return new Email(smtpHost,port, sendUserName, sendUserPass, to, cc, mailSubject, mailBody, attachments);
}
/**
* 默认邮件实体，用了默认的发送帐号和邮件服务器
*
* @param to
* 收件人，多个邮箱地址以半角逗号分隔
* @param cc
* 抄送，多个邮箱地址以半角逗号分隔
* @param subject
* 邮件主题
* @param body
* 邮件正文
* @param attachments
* 附件全路径
* @return
*/
public static Email defaultEntity(String to, String cc, String subject, String body, List<String> attachments) {
return new Email(defaultSmtpHost,null, defaultSenderName, defaultSenderPass, to, cc, subject, body, attachments);
}
/**
* 设置邮件主题
*
* @param mailSubject
* @return
*/
private boolean setSubject(String mailSubject) {
try {
mimeMsg.setSubject(mailSubject);
} catch (Exception e) {
return false;
}
return true;
}
/**
* 设置邮件内容,并设置其为文本格式或HTML文件格式，编码方式为UTF-8
*
* @param mailBody
* @return
*/
private boolean setBody(String mailBody) {
try {
BodyPart bp = new MimeBodyPart();
bp.setContent("<meta http-equiv=Content-Type content=text/html; charset=UTF-8>" + mailBody, "text/html;charset=UTF-8");
// 在组件上添加邮件文本
mp.addBodyPart(bp);
} catch (Exception e) {
System.err.println("设置邮件正文时发生错误！" + e);
return false;
}
return true;
}
/**
* 添加一个附件
*
* @param filename
* 邮件附件的地址，只能是本机地址而不能是网络地址，否则抛出异常
* @return
*/
public boolean addFileAffix(String filename) {
try {
if (filename != null && filename.length() > 0) {
BodyPart bp = new MimeBodyPart();
FileDataSource fileds = new FileDataSource(filename);
bp.setDataHandler(new DataHandler(fileds));
bp.setFileName(MimeUtility.encodeText(fileds.getName(), "utf-8", null)); // 解决附件名称乱码
mp.addBodyPart(bp);// 添加附件
files.add(fileds);
}
} catch (Exception e) {
System.err.println("增加邮件附件：" + filename + "发生错误！" + e);
return false;
}
return true;
}
/**
* 删除所有附件
*
* @return
*/
public boolean delFileAffix() {
try {
FileDataSource fileds = null;
for (Iterator<FileDataSource> it = files.iterator(); it.hasNext();) {
fileds = it.next();
if (fileds != null && fileds.getFile() != null) {
fileds.getFile().delete();
}
}
} catch (Exception e) {
return false;
}
return true;
}
/**
* 设置发件人地址
*
* @param from
* 发件人地址
* @return
*/
private boolean setFrom(String from) {
try {
mimeMsg.setFrom(new InternetAddress(from));
} catch (Exception e) {
return false;
}
return true;
}
/**
* 设置收件人地址
*
* @param to 收件人的地址
* @return
*/
private boolean setTo(String to) {
if (to == null)
return false;
try {
mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
} catch (Exception e) {
return false;
}
return true;
}
/**
* 设置抄送
*
* @param cc
* @return
*/
private boolean setCC(String cc) {
if (cc == null) {
return false;
}
try {
mimeMsg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(cc));
} catch (Exception e) {
return false;
}
return true;
}
/**
* 发送邮件
*
* @return
*/
public boolean send() throws Exception {
mimeMsg.setContent(mp);
mimeMsg.saveChanges();
System.out.println("正在发送邮件....");
Transport transport = session.getTransport("smtp");
// 连接邮件服务器并进行身份验证
transport.connect(smtpHost,port,sendUserName, sendUserPass);
// 发送邮件
transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.TO));
System.out.println("发送邮件成功！");
transport.close();
// Transport.send(mimeMsg);
System.out.println("发送邮件成功！");
return true;
}
public static String buildContent(List<Map<String,Object>> list) throws IOException {
//加载邮件html模板
String fileName = "pod-scale-alarm.html";
InputStream inputStream = ClassLoader.getSystemResourceAsStream(fileName);
BufferedReader fileReader = new BufferedReader(new InputStreamReader(inputStream));
StringBuffer buffer = new StringBuffer();
String line = "";
try {
while ((line = fileReader.readLine()) != null) {
buffer.append(line);
}
} catch (Exception e) {
LOGGER.error("读取文件失败，fileName:{}", fileName, e);
} finally {
inputStream.close();
fileReader.close();
}
String contentText = "以下是分销平台产品列表信息, 敬请查看.<br>below is the information of product list on those distribution platforms, please check. ";
//邮件表格header
String header = "<td>产品名称</td><td>分销平台名称</td><td>分销平台产品类别</td><td>分销平台产品页URL</td><td>分销平台产品推广URL</td><td>推广url远程地址ip</td><td>分销平台产品页页数</td><td>上架时间</td><td>更新时间</td>";
StringBuilder linesBuffer = new StringBuilder();
if(list!=null&&list.size()>0) {
list.forEach(map -> {
linesBuffer.append("<tr><td>" + map.get("productName") +
"</td><td>" + map.get("distributionPlatformName") +
"</td><td>" + map.get("productType") +
"</td><td>" + map.getOrDefault("distributionPlatformDetailUrl","无") +
"</td><td>"+ map.getOrDefault("distributionPlatformProductUrl","无") +
"</td><td>"+ map.getOrDefault("addressIp","无") +
"</td><td>"+ map.getOrDefault("distributionPlatformPageNum","无") +
"</td><td>"+ map.getOrDefault("onShelfTime","无") +
"</td><td>" + map.getOrDefault("updateTime","无") + "</td></tr>");
});
}
//颜色
String emailHeadColor = "#fa5834";
String date = DateFormatUtils.format(new Date(), "yyyy/MM/dd HH:mm:ss");
//填充html模板中的五个参数
String htmlText = MessageFormat.format(buffer.toString(), emailHeadColor, contentText, date, header, linesBuffer.toString());
//改变表格样式
htmlText = htmlText.replaceAll("<td>", "<td style=\"padding:6px 10px; line-height: 150%;border: 1px solid #eee; width: 100px; word-wrap: break-word;\">");
// htmlText = htmlText.replaceAll("<tr>", "<tr style=\"border-bottom: 1px solid #eee; color:#666;\">");
return htmlText;
}
public static void main(String[] args) throws Exception {
String userName = "****"; // 发件人邮箱
String password = "*****"; // 发件人密码(不是登录密码是授权码，需要到邮箱里设置开通授权码功能)
String smtpHost = "smtp.exmail.qq.com"; // 邮件服务器
Integer port = 465; // 邮件服务器端口号
String to = "*****"; // 收件人，多个收件人以半角逗号分隔
String cc = "*****"; // 抄送，多个抄送以半角逗号分隔
String subject = "这是邮件的主题"; // 主题
List<Map<String, Object>> list = new ArrayList<>();
for(int i=0;i<5;i++){
HashMap<String, Object> dateMap = new HashMap<>();
dateMap.put("productName","魔域");
dateMap.put("productType","页面网游");
dateMap.put("distributionPlatformName","网游社区");
dateMap.put("distributionPlatformDetailUrl","www.baidu.com");
dateMap.put("addressIp","0.0.0.0");
dateMap.put("distributionPlatformPageNum","1");
dateMap.put("onShelfTime","2019-06-28");
dateMap.put("updateTime","2019-06-28");
list.add(dateMap);
}
String body = Email.buildContent(list); // 正文，可以用html格式的哟
// List<String> attachments = Arrays.asList("D:\\tmp\\1.png", "D:\\tmp\\2.png"); // 附件的路径，多个附件也不怕
Email email = Email.entity(smtpHost,port, userName, password, to, cc, subject, body, null);
email.send(); // 发送！
}
}
2.创建html模板
pod-scale-alarm.html<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body style="color: #666; font-size: 14px; font-family: 'Open Sans',Helvetica,Arial,sans-serif;">
<div class="box-content" style="width: 80%; margin: 20px auto; max-width: 1500px; min-width: 600px;">
<div class="header-tip" style="font-size: 12px;
color: #aaa;
text-align: right;
padding-right: 25px;
padding-bottom: 10px;">
</div>
<div class="info-top" style="padding: 15px 25px;
border-top-left-radius: 10px;
border-top-right-radius: 10px;
background: {0};
color: #fff;
overflow: hidden;
line-height: 32px;">
<div style="color:#010e07"><strong>分销平台产品列表通知</strong></div>
</div>
<div class="info-wrap" style="border-bottom-left-radius: 10px;
border-bottom-right-radius: 10px;
border:1px solid #ddd;
overflow: hidden;
padding: 15px 15px 20px;">
<div class="tips" style="padding:15px;">
<p style=" list-style: 160%; margin: 10px 0;">Hi,</p>
<p style=" list-style: 160%; margin: 10px 0;">{1}</p>
</div>
<div class="time" style="text-align: right; color: #999; padding: 0 15px 15px;">{2}</div>
<br>
<table class="list" style="width: 100%; border-collapse: collapse; border-top:1px solid #eee; font-size:12px; table-layout: fixed;">
<thead>
<tr style=" background: #fafafa; color: #333; border-bottom: 1px solid #eee;">
{3}
</tr>
</thead>
<tbody>
{4}
</tbody>
</table>
</div>
</div>
</body>
</html>3.将main方法中的邮箱参数修改成自己的邮箱运行结果如下
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