一个完整发送邮件的例子

一个完整发送邮件的例子。

public class SendEmail {
 private Log log  = LogFactory.getLog(getClass());
 private String[] to = {};//接收人
    private String[] cc ={};//抄收人
 private String from = "";//发送人
    private String host = "";//host
    private String subject = "";//主题
    private String username = "";//用户名
    private String password = "";//密码
    private String content = "";//内容
    private String auth = "false";//auth验证

    //实例当前类时，加载相关参数
 public SendEmail(String[] to, String[] cc, String from, String subject,String content) {
        PropertiesConfig propertiesConfig = null;
        try {
            propertiesConfig = PropertiesConfig.getInstance();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        this.setHost(propertiesConfig.getValue("smtpHost"));
        this.setUsername(propertiesConfig.getValue("emailUserName"));
        this.setPassword(propertiesConfig.getValue("emailPWD"));
        this.setAuth(propertiesConfig.getValue("auth"));

        this.setTo(to);
        this.setFrom(from);
        this.setCc(cc);
        this.setSubject(subject);
        this.setContent(content);
    }
 public boolean startSend() {
        Properties props = System.getProperties();
        props.put("mail.smtp.host", this.getHost());
        props.put("mail.smtp.username", this.getUsername());
        props.put("mail.smtp.password", this.getPassword());
        props.put("mail.smtp.auth", this.getAuth());

        Session session = Session.getInstance(props);

        try {
         MimeMessage msg = new MimeMessage(session);
            msg.setFrom(new InternetAddress(this.getFrom()));
           
            InternetAddress[] address = new InternetAddress[getTo().length];
            for (int i = 0; i < getTo().length; i++) {
                address[i] = new InternetAddress(getTo()[i]);
            }
            msg.setRecipients(Message.RecipientType.TO, address);
            if (null != cc && cc.length > 0) {
                InternetAddress[] addressCC = new InternetAddress[getCc().length];
                for (int i = 0; i < getCc().length; i++) {
                    addressCC[i] = new InternetAddress(getCc()[i]);
                }
                msg.setRecipients(Message.RecipientType.CC, addressCC);
            }
            if (null!=cc&&cc.length>0) {
             msg.setHeader("Disposition-Notification-To", cc[0]);
   }//设置回执，其中cc[0]可以指向你回执的邮箱
            msg.setHeader("Sensitivity", "Company-Confidential");//设置机密邮件

            msg.setHeader ( "X-Priority", "1" ) ; //设置优先级
            msg.setSubject(this.getSubject());//设置主题
            Multipart mp = new MimeMultipart();
            Enumeration efile = file.elements();
            while (efile.hasMoreElements()) {//循环加载所有附件
                MimeBodyPart mbp = new MimeBodyPart();
                filename = efile.nextElement().toString();
                FileDataSource fds = new FileDataSource(filename);
                mbp.setDataHandler(new DataHandler(fds));
                mbp.setFileName(fds.getName());
                mp.addBodyPart(mbp);
            }
            file.removeAllElements();
            msg.setSentDate(new Date());
            MimeBodyPart mbpt = new MimeBodyPart();
            mbpt.setContent(this.getContent(), "text/html;charset=UTF-8");
            mp.addBodyPart(mbpt);
            msg.setContent(mp);
            msg.saveChanges();
            Transport transport = session.getTransport("smtp");
            if ("false".equals(this.getAuth())) {
                transport.connect();
            } else {
                transport.connect(getHost(), getUsername(), getPassword());
            }
            transport.sendMessage(msg, msg.getAllRecipients());
            transport.close();
            log.info("send mail success;eMailAddress:"+to);
        } catch (MessagingException mex) {
            log.error("send mail exception, cause: " + mex);
            Exception ex = null;
            if ((ex = mex.getNextException()) != null) {
                log.error("send mail exception, cause: " + ex);
            }
            return false;
        }
        return true;
    }

public String[] getTo() {
        return to;
    }

    public void setTo(String[] to) {
        this.to = to;
    }

    public String getFrom() {
        return from;
    }
    public String[] getCc() {
  return cc;
 }

 public void setCc(String[] cc) {
  this.cc = cc;
 }
    public void setFrom(String from) {
        this.from = from;
    }

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    public String getSubject() {
        return subject;
    }

    public void setSubject(String subject) {
        this.subject = subject;
    }

    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;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public String getAuth() {
        return auth;
    }

    public void setAuth(String auth) {
        this.auth = auth;
    }

    private String filename = "";

    Vector file = new Vector();

    //多附件的操作
    public boolean attachfile(String fname) {
        File dataFile = new File(fname);
        if (dataFile.exists()) {
            file.addElement(fname);
            return true;
        }else{
         return false;
        }
    }

}