本文主要是介绍apach MailUtils邮件发送工具类 支持附件，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
JavaMail Demo，引用的jar如下:
- activation.jar
- mail.jar
smtp设置参考https://www.west.cn/faq/list.asp?Unid=852
示例代码
package com.alexli.uitl;import java.util.Date;import java.util.Enumeration;import java.util.Properties;import java.util.Vector;import javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.Authenticator;import javax.mail.Message;import javax.mail.Multipart;import javax.mail.PasswordAuthentication;import javax.mail.Session;import javax.mail.Transport;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;
/*** <p> @Description: 邮件发送工具类 </p>* @author alexli* @Date 2017年6月22日 上午10:34:41 */
public class MailUtils {String to = ""; // 收件人邮箱地址String from = ""; // 发件人邮箱地址String host = ""; // smtp主机String username = ""; //用户名String password = ""; //密码String filename = ""; // 附件文件名String subject = ""; // 邮件主题String content = ""; // 邮件正文Vector file = new Vector();// 附件文件集合public MailUtils() {}public MailUtils(String to, String from, String smtpServer,String username, String password, String subject, String content) {this.to = to;this.from = from;this.host = smtpServer;this.username = username;this.password = password;this.subject = subject;this.content = content;}public void setHost(String host) {this.host = host;}public void setPassWord(String pwd) {this.password = pwd;}public void setUserName(String usn) {this.username = usn;}public void setTo(String to) {this.to = to;}public void setFrom(String from) {this.from = from;}public void setSubject(String subject) {this.subject = subject;}public void setContent(String content) {this.content = content;}/*** @param strText* @return* @Description: 把主题转为中文 utf-8* @author alexli* @Date 2017年6月22日 上午10:37:07*/public String transferChinese(String strText) {try {strText = MimeUtility.encodeText(new String(strText.getBytes(),"utf-8"), "utf-8", "B");} catch (Exception e) {e.printStackTrace();}return strText;}public void attachfile(String fname) {file.addElement(fname);}/*** @return* @Description: 发送邮件，发送成功返回true 失败false* @author alexli* @Date 2017年6月22日 上午10:37:47*/public boolean sendMail() {// 构造mail sessionProperties props = new Properties();props.put("mail.smtp.host", host);props.put("mail.smtp.auth", "true");props.put("mail.smtp.port", "25");//465Session session = Session.getDefaultInstance(props,new Authenticator() {public PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(username, password);}});try {// 构造MimeMessage 并设定基本的值MimeMessage msg = new MimeMessage(session);msg.setFrom(new InternetAddress(from));msg.setRecipients(Message.RecipientType.BCC, InternetAddress.parse(to));subject = transferChinese(subject);msg.setSubject(subject);// 构造MultipartMultipart mp = new MimeMultipart();// 向Multipart添加正文MimeBodyPart mbpContent = new MimeBodyPart();mbpContent.setContent(content, "text/html;charset=utf-8");// 向MimeMessage添加（Multipart代表正文）mp.addBodyPart(mbpContent);// 向Multipart添加附件Enumeration efile = file.elements();while (efile.hasMoreElements()) {MimeBodyPart mbpFile = new MimeBodyPart();filename = efile.nextElement().toString();FileDataSource fds = new FileDataSource(filename);mbpFile.setDataHandler(new DataHandler(fds));String filename = new String(fds.getName().getBytes(), "ISO-8859-1");mbpFile.setFileName(filename);// 向MimeMessage添加（Multipart代表附件）mp.addBodyPart(mbpFile);}file.removeAllElements();// 向Multipart添加MimeMessagemsg.setContent(mp);msg.setSentDate(new Date());msg.saveChanges();// 发送邮件Transport transport = session.getTransport("smtp");transport.connect(host, username, password);transport.sendMessage(msg, msg.getAllRecipients());transport.close();} catch (Exception mex) {mex.printStackTrace();return false;}return true;}/*** @param args* @Description: 邮件测试main方法* @author alexli* @Date 2017年6月22日 上午10:40:36*/public static void main(String[] args) {MailUtils sendmail = new MailUtils();sendmail.setHost("smtp.exmail.qq.com");sendmail.setUserName("");sendmail.setPassWord("");sendmail.setTo("");sendmail.setFrom("");sendmail.setSubject("张小米");sendmail.setContent("<a href=\"https://baidu.com\">Link text</a>");//添加附件
// sendmail.attachfile("d:\\CoolFormat3.4.rar");System.out.println(sendmail.sendMail());}
}
这篇关于apach MailUtils邮件发送工具类 支持附件的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
