邮件接口开发经验介绍

Bertha 。 2022-06-11 08:38 146阅读 0赞

邮件发送的程序有许多方法，这里以java mail为实例讲解具体的开发经验。

环境准备：在jdk1.7环境下引入的jar包mail.jar。

以下是一个邮件发送工具类的代码。

public class MailUtils {
    	private static final String charset = "UTF-8";  
        private static final String defaultMimetype = "text/plain"; 
    	private String PORT;  //端口，默认25
        private String SMTP;  //smtp服务器地址  如：smtp.163.com
        private String myEmailAddress;  //发送者的邮件账号
        private String myEmailPWD;  //发送者的邮件密码（明文）
        private String isVerification; //SMTP服务器是否需要身份验证
        // 参数  
        private String[] receivers;  //收件人
        private File[] attachements;  //附件
        private String subject, mailContent, mimetype;//主题、邮件内容、邮件类型
     public void sendMail() throws MessagingException, UnsupportedEncodingException{
    	Properties props = new Properties();  
        props.put("mail.smtp.port", PORT);              // 端口  
        props.put("mail.smtp.host", SMTP);              // smtp服务器地址  
        props.put("mail.smtp.auth", isVerification);    // 需要校验  
        //发送者邮件会话对象包装
        Session session = Session.getInstance(props,  
                new Authenticator() {  
                    protected PasswordAuthentication getPasswordAuthentication() {  
                        return new PasswordAuthentication(myEmailAddress,  
                                myEmailPWD);            // 登录用户名/密码  
                    }  
                });  
        session.setDebug(true);  
        MimeMessage mimeMessage = new MimeMessage(session);  
      //发送者的邮件地址
        InternetAddress sender = new InternetAddress(myEmailAddress);  
        //sender.setPersonal(nickname, charset);          // 昵称（UTF-8编码）  
        mimeMessage.setFrom(sender);                    // 发件人邮件  
      //接收者的邮件地址  
        InternetAddress[] toAddress = new InternetAddress[receivers.length];  
        for (int i = 0; i < receivers.length; i++) {  
            toAddress[i] = new InternetAddress(receivers[i]);  
        }  
        //邮件消息的包装  
        mimeMessage.setRecipients(Message.RecipientType.TO, toAddress);// 收件人邮件  
        mimeMessage.setSubject(subject, charset);//主题  
    
        Multipart multipart = new MimeMultipart();  
        //正文  
        MimeBodyPart body = new MimeBodyPart();  
        body.setContent(mailContent,  
                (mimetype != null && !"".equals(mimetype) ? mimetype  
                        : defaultMimetype)  
                        + ";charset=" + charset);  
        multipart.addBodyPart(body);// 发件内容  
        //附件  
        if (attachements != null) {  
            for (File attachement : attachements) {  
                MimeBodyPart attache = new MimeBodyPart();  
                attache.setDataHandler(new DataHandler(new FileDataSource(  
                        attachement)));  
                String fileName = getLastName(attachement.getName());  
                attache.setFileName(MimeUtility.encodeText(fileName, charset,  
                        null));  
                multipart.addBodyPart(attache);  
            }  
        }  
        mimeMessage.setContent(multipart);  
        mimeMessage.setSentDate(new Date()); //发送日期 
        //发送邮件  
        Transport.send(mimeMessage);
      }
     //对文件路径中路径符号\\、/的处理，取出文件名
      private static String getLastName(String fileName) {  
         int pos = fileName.lastIndexOf("\\");  
         if (pos > -1) {  
             fileName = fileName.substring(pos + 1);  
         }  
         pos = fileName.lastIndexOf("/");  
         if (pos > -1) {  
             fileName = fileName.substring(pos + 1);  
         }  
         return fileName;  
     }  
     
    }