java mail发送邮件(单发和群发)

1 服务器邮箱登录验证类

package com.sunrise.jop.common.mail;import javax.mail.Authenticator;import javax.mail.PasswordAuthentication;/**   * 服务器邮箱登录验证   * */  public class MailAuthenticator extends Authenticator{      private String userName = null;//用于发送邮件的邮箱        private String password = null;//邮箱密码        public MailAuthenticator() {      }        public MailAuthenticator(String username, String password) {          this.userName = username;          this.password = password;       }        protected PasswordAuthentication getPasswordAuthentication() {          return new PasswordAuthentication(userName, password);      }            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;      }  }  

2 邮件信息bean

package com.sunrise.jop.common.mail;import java.io.File;import java.util.List;import java.util.Properties;/** * 邮件信息bean * */public class MailSendeBean {// 邮箱地址private String emailAddress;// 主题private String subject;// 内容private String content;// 附件private List<File> attachFiles;public MailSendeBean() {}public MailSendeBean(String emailAddress, String subject, String content) {this.emailAddress = emailAddress;this.subject = subject;this.content = content;}public MailSendeBean(String emailAddress, String subject, String content,List<File> attachFiles) {this.emailAddress = emailAddress;this.subject = subject;this.content = content;this.attachFiles = attachFiles;}public String getEmailAddress() {return emailAddress;}public void setEmailAddress(String emailAddress) {this.emailAddress = emailAddress;}public String getSubject() {return subject;}public void setSubject(String subject) {this.subject = subject;}public String getContent() {return content;}public void setContent(String content) {this.content = content;}public List<File> getAttachFiles() {return attachFiles;}public void setAttachFiles(List<File> attachFiles) {this.attachFiles = attachFiles;}    }

3 邮件发送器

package com.sunrise.jop.common.mail;import java.io.File;import java.io.UnsupportedEncodingException;import java.util.Date;  import java.util.List;  import java.util.Properties;    import javax.activation.DataHandler;import javax.activation.DataSource;import javax.activation.FileDataSource;import javax.mail.BodyPart;import javax.mail.MessagingException;  import javax.mail.Multipart;import javax.mail.Session;  import javax.mail.Transport;  import javax.mail.internet.AddressException;  import javax.mail.internet.InternetAddress;  import javax.mail.internet.MimeBodyPart;import javax.mail.internet.MimeMessage;  import javax.mail.internet.MimeMessage.RecipientType;  import javax.mail.internet.MimeMultipart;import javax.mail.internet.MimeUtility;  /**   * 邮件发送器 * */  public class MailSender {        //发送邮件的props文件      private final transient Properties props = System.getProperties();        private transient MailAuthenticator authenticator;//邮件服务器登录验证          private  transient Session session;//邮箱session              /**         * 初始化邮件发送器         *         * @param smtpHostName         * SMTP邮件服务器地址         * @param username         * 发送邮件的用户名(地址)         * @param password         * 发送邮件的密码         */       public MailSender(final String smtpHostName, final String username,                final String password) {            init(username, password, smtpHostName);        }         /**         * 初始化邮件发送器         *         * @param username         * 发送邮件的用户名(地址)，并以此解析SMTP服务器地址         * @param password         * 发送邮件的密码         */       public MailSender(final String username, final String password) {            //通过邮箱地址解析出smtp服务器，适合大多数邮箱           final String smtpHostName = "smtp." + username.split("@")[1];            init(username, password, smtpHostName);        }        /**         * 初始化         *         * @param username         * 发送邮件的用户名(地址)         * @param password         * 密码         * @param smtpHostName         * SMTP主机地址         */       private void init(String username, String password, String smtpHostName) {            // 初始化props            props.put("mail.smtp.auth", "true");            props.put("mail.smtp.host", smtpHostName);            // 验证            authenticator = new MailAuthenticator(username, password);            // 创建session            session = Session.getInstance(props, authenticator);        }         /**     * 群发邮件     * @throws Exception      * */    public String sendToManyUser( List<MailSendeBean> mailBeanList ) throws Exception{    if(mailBeanList==null||mailBeanList.size()==0)    {    return "请设置邮件相关参数\n";    }    StringBuffer stringBuffer = new StringBuffer();    for( int i = 0 ; i < mailBeanList.size() ; i++ ){    MailSendeBean mailBean = mailBeanList.get(i);    stringBuffer.append(this.sendToOneUser(mailBean));      }    return stringBuffer.toString();        }            /**     * 单个邮件发送     * @throws Exception      * */   public String sendToOneUser(MailSendeBean mailSendeBean) throws Exception{        if(mailSendeBean==null) return "请设置邮件相关参数\n";        //返回提示信息    String result = "["+mailSendeBean.getEmailAddress() +"]发送邮件成功\n" ;         // 创建mime类型邮件            final MimeMessage message = new MimeMessage(session);            // 设置发信人            message.setFrom(new InternetAddress(authenticator.getUserName()));            // 设置收件人            message.setRecipient(RecipientType.TO, new InternetAddress(mailSendeBean.getEmailAddress()));            // 设置主题            message.setSubject(mailSendeBean.getSubject());                    message.setSentDate(new Date());            //        // 设置邮件内容    //        message.setContent(mailSendeBean.getContent().toString(), "text/html;charset=utf-8");                   // 向multipart对象中添加邮件的各个部分内容，包括文本内容和附件        Multipart multipart = new MimeMultipart();                // 添加邮件正文        BodyPart contentPart = new MimeBodyPart();        contentPart.setContent(mailSendeBean.getContent().toString(), "text/html;charset=UTF-8");        multipart.addBodyPart(contentPart);        List<File> attachFiles =   mailSendeBean.getAttachFiles();        if(attachFiles!=null&&attachFiles.size() >0 ){        for( int i = 0 ; i <  attachFiles.size() ; i++){        File attchFile =  attachFiles.get(i);        if(attchFile != null){         BodyPart attachmentBodyPart = new MimeBodyPart();                    DataSource source = new FileDataSource(attchFile);                    attachmentBodyPart.setDataHandler(new DataHandler(source));                     //MimeUtility.encodeWord可以避免文件名乱码                    attachmentBodyPart.setFileName(MimeUtility.encodeWord(attchFile.getName()));                    multipart.addBodyPart(attachmentBodyPart);        }        }        }              // 将multipart对象放到message中        message.setContent(multipart);        try{          Transport.send(message);     }catch(Exception e){    result = "["+mailSendeBean.getEmailAddress() +"]未知异常,发送邮件失败\n" ;    }  return result;        }    }  

4 邮件发送demo

package com.sunrise.jop.common.mail;import java.io.File;import java.util.ArrayList;import java.util.List;/** * 邮件发送demo * */public class MailSenderDemo {//创建邮件服务器private MailSender createMailSender(){String smtpHostName = "imap2.eumail.qq.com";   //邮件服务器        String username = "[e-mail]";         String password = "JianigPeng24212411";          MailSender mailSender = new MailSender(smtpHostName,username,password);        return mailSender;        }//多个用户邮件发送private void sendToManyUser() throws Exception{//初始化邮件服务器MailSender mailSender = this.createMailSender();//第一个用户//创建邮件beanString emailAddress1 = "[e-mail]";          String subject1 = "邮件主题测试1";          String content1 = "邮件内容测试1";         //附件        File txtFile1 = new File("D:"+File.separator+ "emailTest" + File.separator + "testText.txt");        File docFile1 = new File("D:"+File.separator+ "emailTest" + File.separator + "testDoc.doc");        File excelFile1 = new File("D:"+File.separator+ "emailTest" + File.separator + "testExcel.xls");        File photoFile1 = new File("D:"+File.separator+ "emailTest" + File.separator + "testPhoto.jpg");                List<File> attchFiles1 = new ArrayList<File>();        attchFiles1.add(txtFile1);   attchFiles1.add(docFile1);        attchFiles1.add(excelFile1);   attchFiles1.add(photoFile1);                //封装单个邮件bean        MailSendeBean mailSendeBean1 = new MailSendeBean( emailAddress1, subject1,  content1,attchFiles1);                        //第二个用户        String emailAddress2 = "[e-mail]";          String subject2 = "邮件主题测试2";          String content2 = "邮件内容测试2";         //附件        File txtFile2 = new File("D:"+File.separator+ "emailTest" + File.separator + "testText.txt");        File docFile2 = new File("D:"+File.separator+ "emailTest" + File.separator + "testDoc.doc");                        List<File> attchFiles2 = new ArrayList<File>();        attchFiles2.add(txtFile2);   attchFiles2.add(docFile2);                    //封装单个邮件bean        MailSendeBean mailSendeBean2 = new MailSendeBean( emailAddress2, subject2,  content2,attchFiles2);                //封装多个邮件bean        List<MailSendeBean> mailList = new ArrayList<MailSendeBean>();        mailList.add(mailSendeBean1); mailList.add(mailSendeBean2);                // 发送邮件       String resultMessage =  mailSender.sendToManyUser(mailList);       System.out.println("resultMessage = " + resultMessage);        }//单个邮件发送private void sendToOneUser() throws Exception{//初始化邮件服务器MailSender mailSender = this.createMailSender();//创建邮件beanString emailAddress = "[e-mail]";          String subject = "邮件主题测试";          String content = "邮件内容测试";         //附件        File txtFile = new File("D:"+File.separator+ "emailTest" + File.separator + "testText.txt");        File docFile = new File("D:"+File.separator+ "emailTest" + File.separator + "testDoc.doc");        File excelFile = new File("D:"+File.separator+ "emailTest" + File.separator + "testExcel.xls");        File photoFile = new File("D:"+File.separator+ "emailTest" + File.separator + "testPhoto.jpg");                List<File> attchFiles = new ArrayList<File>();        attchFiles.add(txtFile);   attchFiles.add(docFile);        attchFiles.add(excelFile);   attchFiles.add(photoFile);                //封装邮件bean        MailSendeBean mailSendeBean = new MailSendeBean( emailAddress, subject,  content,attchFiles);                // 发送邮件       String resultMessage =  mailSender.sendToOneUser(mailSendeBean);       System.out.println("resultMessage = " + resultMessage);        }public static void main(String args[]) throws Exception{MailSenderDemo mailDemo = new MailSenderDemo();//mailDemo.sendToOneUser(); // 测试单个邮件发送mailDemo.sendToManyUser(); // 测试多个邮件发送}}