java实现阿里企业邮箱以及谷歌邮箱邮件的发送

一、配置

在Syn.properties进行邮箱host等配置

smtpServer=smtp.amuxia.com

fromUserName=邮箱的用户名
fromUserPassword=你的密码

#注意如果是企业邮箱需要smtp.企业的域名比如我的域名是amuxia.com（当然这个也是假的，举个例子，哈哈）

如果是个人邮箱就是 smtpServer=smtp.aliyun.com

如果是企业邮箱不用域名的话，运行就会报错

java实现阿里企业邮箱以及谷歌邮箱邮件的发送

二、设置取读配置文件的类EmailInfo

public class EmailInfo {
   private String smtpServer;
// SMTP服务器地址
   private String port; // 端口
   private String username;
// 登录SMTP服务器的用户名,发送人邮箱地址
   private String password;
// 登录SMTP服务器的密码
   public EmailInfo() {
       String path=this.getClass().getClassLoader().getResource(".").getPath()+"Syn.properties";
       ConfigurationFile config = new ConfigurationFile(path);
       this.smtpServer = config.getValue("smtpServer");
       //this.port = config.getValue("port");
       this.username = config.getValue("fromUserName");
       this.password = config.getValue("fromUserPassword");
   }

   public String getSmtpServer() {
       return smtpServer;
   }

   public void setSmtpServer(String smtpServer) {
       this.smtpServer = smtpServer;
   }

   public String getPort() {
       return port;
   }

   public void setPort(String port) {
       this.port = port;
   }

   public String getUsername() {
       return username;
   }

   public void setUsername(String username) {
       this.username = username;
   }

   public String getPassword() {
       return password;
   }

   public void setPassword(String password) {
       this.password = password;
   }
}

三、编写发送邮件的工具类 EmailUtil

public class EmailUtil {

   private static Logger log = Logger.getLogger(EmailUtil.class);


   public void send(String to[], String cs[], String ms[], String subject,
       String content, String fileList[]) {
       try {
           final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
  Properties p = new Properties();
       EmailInfo info=new EmailInfo();
       p.put("mail.debug", "true");
           p.put("mail.smtp.host", info.getSmtpServer());
           p.put("mail.smtp.ssl.enable", "true");
           p.put("mail.smtp.socketFactory.class", SSL_FACTORY);
           p.put("mail.smtp.port", "465");
           p.put("mail.smtp.socketFactory.port", "465");
           // props.put("mail.smtp.socketFactory.fallback", "false");
           p.put("mail.smtp.auth", "true");
       // 建立会话
       // Session session = Session.getInstance(p);
       Session session = Session.getDefaultInstance(p,
               new Authenticator() {
               protected PasswordAuthentication getPasswordAuthentication() {
               return new PasswordAuthentication(info.getUsername(), info.getPassword());
               }
               });
       Message msg = new MimeMessage(session); // 建立信息
       BodyPart messageBodyPart = new MimeBodyPart();
       Multipart multipart = new MimeMultipart();
       msg.setFrom(new InternetAddress(info.getUsername())); // 发件人

       String toList = null;
       String toListcs = null;
       String toListms = null;

       // 发送,
       if (to != null) {
       toList = getMailList(to);
       InternetAddress[] iaToList = new InternetAddress()
       .parse(toList);
       msg.setRecipients(Message.RecipientType.TO, iaToList); // 收件人
       }

       // 抄送
       if (cs != null) {
       toListcs = getMailList(cs);
       InternetAddress[] iaToListcs = new InternetAddress()
       .parse(toListcs);
       msg.setRecipients(Message.RecipientType.CC, iaToListcs); // 抄送人
       }

       // 密送
       if (ms != null) {
       toListms = getMailList(ms);
       InternetAddress[] iaToListms = new InternetAddress()
       .parse(toListms);
       msg.setRecipients(Message.RecipientType.BCC, iaToListms); // 密送人
       }
       msg.setSentDate(new Date()); // 发送日期
       msg.setSubject(subject); // 主题
       msg.setText(content); // 内容
       // 显示以html格式的文本内容
       messageBodyPart.setContent(content, "text/html;charset=gbk");
       multipart.addBodyPart(messageBodyPart);

       // 2.保存多个附件
       if (fileList != null) {
       addTach(fileList, multipart);
       }

       msg.setContent(multipart);
       // 邮件服务器进行验证
       Transport tran = session.getTransport("smtp");
       tran.connect(info.getSmtpServer(), info.getUsername(),info.getPassword());
       tran.sendMessage(msg, msg.getAllRecipients()); // 发送
       //Transport.send(msg);
       System.out.println("邮件发送成功");
       log.info("邮件发送成功");
       } catch (Exception e) {
       e.printStackTrace();
       log.info("邮件发送失败："+e);
       }
       }

private String getMailList(String[] mailArray) {

   StringBuffer toList = new StringBuffer();
   int length = mailArray.length;
   if (mailArray != null && length < 2) {
   toList.append(mailArray[0]);
   } else {
   for (int i = 0; i < length; i++) {
   toList.append(mailArray[i]);
   if (i != (length - 1)) {
   toList.append(",");
   }

   }
   }
   return toList.toString();

   }


   // 添加多个附件
   public void addTach(String fileList[], Multipart multipart)
   throws MessagingException, UnsupportedEncodingException {
   for (int index = 0; index < fileList.length; index++) {
   MimeBodyPart mailArchieve = new MimeBodyPart();
   FileDataSource fds = new FileDataSource(fileList[index]);
   mailArchieve.setDataHandler(new DataHandler(fds));
   mailArchieve.setFileName(MimeUtility.encodeText(fds.getName(),
   "GBK", "B"));
   multipart.addBodyPart(mailArchieve);
   }
   }
   }

四、最后在进行test

public static void main(String[] args) {

EmailUtil send =new EmailUtil();

//发送给谁
String to[] = { "xxx@qq.com","xxxx@163.com" };

String cs[] = { "xxxx@qq.com" }; //抄送
String ms[] = null;//密送
String subject = "测试一下";
String content = "这是邮件内容，仅仅是测试，不需要回复";
String[] arrArchievList = new String[2];
arrArchievList[0] = "C:\\Users\\pc\\Pictures\\Camera Roll\\photo-1551334787-21e6bd3ab135.jpg";
arrArchievList[1] = "C:\\Users\\pc\\Pictures\\Camera Roll\\timg.jpg";
// arrArchievList[2] = "D:\\demo.rar";
// 2.保存多个附件
send.send(to, cs, ms, subject, content,arrArchievList);

}

五、谷歌发送邮箱

国内已封gmail的ip 要能够访问需要使用vpn、或者翻墙工具。

在使用gmail邮箱发送邮件之前需要先开启相关的配置项