电子邮件系统 6-JavaMail发送带附件的电子邮件示范(1)
电子邮件系统 6----JavaMail发送带附件的电子邮件示例(1)
- /**
- * CrazyItTest
- * 使用JavaMail发送带附件的电子邮件示例
- */
- package com.labci.javamail.test;
- import java.io.FileNotFoundException;
- import java.io.IOException;
- import java.io.UnsupportedEncodingException;
- import java.util.Date;
- import java.util.Properties;
- import javax.activation.DataHandler;
- import javax.activation.FileDataSource;
- import javax.mail.MessagingException;
- import javax.mail.Session;
- import javax.mail.Transport;
- import javax.mail.Message.RecipientType;
- import javax.mail.internet.AddressException;
- import javax.mail.internet.InternetAddress;
- import javax.mail.internet.MimeBodyPart;
- import javax.mail.internet.MimeMessage;
- import javax.mail.internet.MimeMultipart;
- import javax.mail.internet.MimeUtility;
- /**
- * @author Bill Tu
- * @since May 26, 2011(21:03:36 PM)
- *
- */
- public class SendEmailTest {
- private static Session getSession(String protocol){
- Properties mailProps=new Properties();
- mailProps.put("mail.smtp.auth", "true");//向SMTP服务器提交用户认证
- mailProps.put("mail.transport.protocol", protocol);//指定发送邮件协议
- //getInstance每次都会拿一个新的session,而getDefaultInstance拿的是同一个session
- Session session=Session.getDefaultInstance(mailProps);
- //session.setDebug(true);//调试模式
- return session;
- }
- private static void sendEmail(MimeMessage message,String protocol) throws MessagingException{
- String host="smtp.163.com";//连接发送方的SMTP服务器
- String user="iwtxokhtd";//用户名
- String password="123456";//密码
- //从session中取mail.smtp.protocol指定协议的Transport
- Transport transport=getSession(protocol).getTransport();
- //建立与指定的SMTP服务器的连接
- transport.connect(host, user, password);
- //发给所有指定的收件人,若使用message.getAllRecipients()则还包括抄送和暗送的人
- transport.sendMessage(message, message.getRecipients(RecipientType.TO));
- //关闭连接
- transport.close();
- /**
- * Transport的send静态方法包括了connect,saveChanges,sendMessage,close等一系列操作,
- * 但它连接同一个SMTP服务器每发一封邮件给服务器都得重新建立连接和断开连接,
- * 虽然使用较方便,但开销较大,不值得推荐。
- */
- // Transport.send(message, message.getRecipients(RecipientType.TO));
- }
- private static MimeMessage getTextMessage(Session session) throws AddressException,
- MessagingException, UnsupportedEncodingException{
- MimeMessage message=new MimeMessage(session);
- String from="iwtxokhtd@163.com";//发送方邮件地址
- String to="277515433@qq.com";//接收方邮件地址
- String subject="从163发到QQ来的邮件";//邮件主题,注意是中文的
- String content="<h1>试试可以不</h1><img src="cid:my1.jpg" mce_src="cid:my1.jpg"/>";//cid为my1.jpg,下文会设置此cid
- message.setFrom(new InternetAddress(from));
- message.setRecipient(RecipientType.TO, new InternetAddress(to));
- message.setSubject(subject);
- message.setSentDate(new Date());//发送时间
- MimeBodyPart picBodyPart=getPicBodyPart(content,"F://My头像.jpg");
- MimeBodyPart attached1BodyPart=getAttachedBodyPart("F://nginx中文.txt");//注意附件名是中文的
- MimeBodyPart attached2BodyPart=getAttachedBodyPart("F://nginx英文.doc");
- MimeMultipart mmp=new MimeMultipart("mixed");//MIME消息头组合类型是mixed(html+附件)
- mmp.addBodyPart(picBodyPart);
- mmp.addBodyPart(attached1BodyPart);
- mmp.addBodyPart(attached2BodyPart);
- message.setContent(mmp);
- message.saveChanges();
- return message;
- }
- /**
- * 处理文件名
- * 此处是针对Window下的。
- * @param filePath
- * @return
- */
- private static String doHandlerFileName(String filePath){
- String fileName=filePath;
- if(null !=filePath && !"".equals(filePath)){
- fileName=filePath.substring(filePath.lastIndexOf("//")+1);
- }
- return fileName;
- }
- private static MimeBodyPart getAttachedBodyPart(String filePath) throws MessagingException,
- UnsupportedEncodingException{
- MimeBodyPart attached=new MimeBodyPart();
- FileDataSource fds=new FileDataSource(filePath);
- attached.setDataHandler(new DataHandler(fds));
- String fileName=doHandlerFileName(filePath);
- attached.setFileName(MimeUtility.encodeWord(fileName));//处理附件文件的中文名问题
- return attached;
- }
- /**
- * 处理html加图片的类型(related)
- * @param content
- * @param picName
- * @return
- * @throws MessagingException
- */
- private static MimeBodyPart getPicBodyPart(String content,String picName) throws MessagingException{
- MimeBodyPart contentPart=new MimeBodyPart();
- MimeMultipart mmp=new MimeMultipart("related");//此处MIME消息头组合类型为related
- MimeBodyPart contented=new MimeBodyPart();
- contented.setContent(content,"text/html;charset=gb2312");//因正文内容中有中文
- mmp.addBodyPart(contented);
- MimeBodyPart picBodyPart=new MimeBodyPart();
- FileDataSource fds=new FileDataSource(picName);
- picBodyPart.setDataHandler(new DataHandler(fds));
- picBodyPart.setContentID("my1.jpg");//设置contentId
- mmp.addBodyPart(picBodyPart);
- contentPart.setContent(mmp);
- return contentPart;
- }
- public static void main(String[] args) throws AddressException,
- MessagingException, FileNotFoundException, IOException {
- String protocol="smtp";
- sendEmail(getTextMessage(getSession(protocol)),protocol);
- }
- }
查看结果: