Java：我常用的邮件发送类

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我常用的邮件发送类

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package javax.util.zz;

import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import java.util.*;
import java.net.*;
import java.io.*;

/**
* 邮件发送类
* 支持普通模式和HTML模式，可发送多个附件，支持SMTP服务器认证。 基于javamail开发，使用时请将javamail包含在classpath系统变量中。
* 使用说明：
* Mail mail=new Mail();
* mail.setXXX ....
* mail.send(); 
* @author
* @version 1.0
*/
public class Mail {

private Address[] to = null;
private Address[] cc = null;
private Address[] bcc = null;
private String from = "";
private String title = "";
private String content = "";
private String smtpHost = "";
private int smtpPort = 25;
private String content_type = MODE_TEXT;
private String htmlMailDesc = "";

private String smtpUser = "";
private String smtpPassword = "";
private boolean isAuthenticationSMTP = false;

private Vector vFiles = new Vector();
private Vector vURLs = new Vector();

public Mail() {
}

/**
   * 设置SMTP服务器，使用默认端口
   * @param server SMTP服务器IP
   */
public void setSmtpHost(String server) {
    this.smtpHost = server;
}

/**
   * 设置SMTP服务器
   * @param server SMTP服务器IP
   * @param port 端口
   */
public void setSmtpHost(String server, int port) {
    this.smtpHost = server;
    this.smtpPort = port;
}

/**
   * 设置收件人地址
   * @param aEmail 收件人Email地址
   */
public void setTo(String aEmail) {
    String[] s = new String[1];
    s[0] = aEmail;
    this.to = getAddress(s);
}

/**
   * 设置多个收件人地址
   * @param Emails 收件人Email地址
   */
public void setTo(String[] Emails) {
    this.to = getAddress(Emails);
}

/**
   * 设置抄送地址
   * @param aEmail 抄送地址
   */
public void setCC(String aEmail) {
    String[] s = new String[1];
    s[0] = aEmail;
    this.cc = getAddress(s);
}

/**
   * 设置多个抄送地址
   * @param Emails 抄送地址
   */
public void setCC(String[] Emails) {
    this.cc = getAddress(Emails);
}

/**
   * 设置暗送地址
   * @param Emails 暗送地址
   */

public void setBCC(String aEmail) {
    String[] s = new String[1];
    s[0] = aEmail;
    this.bcc = getAddress(s);
}

/**
   * 设置多个暗送地址
   * @param Emails 暗送地址
   */
public void setBCC(String[] Emails) {
    this.bcc = getAddress(Emails);
}

/**
   * 设置发件人地址
   * @param aEmail 发件人地址
   */
public void setFrom(String aEmail) {
//        if(!isValidEmailAddress(aEmail)){
//            throw new MyException("Invalid Email Address");
//        }
    this.from = aEmail;
}

/**
   * 设置邮件主题
   * @param mailTitle 邮件主题
   */
public void setSubject(String mailTitle) {
    this.title = mailTitle;
}

/**
   * 设置邮件文字内容
   * @param mailContent 邮件文字内容
   */
public void setBody(String mailContent) {
    this.content = mailContent;
}

/**
   * 设置邮件字符类型
   * @param contentType 请从静态变量TEXT和HTML中选择
   */
public void setContentType(String contentType) {
    this.content_type = contentType;
}

/**
   * 设置HTML格式邮件在一般模式下显示的说明
   * @param desc 说明文字
   */
public void setHtmlMailDesc(String desc) {
    this.htmlMailDesc = desc;
}

/**
   * 设置SMTP服务器用户认证
   * @param username 用户名
   * @param password 密码
   */
public void setSmtpAuthentication(String username, String password) {
    this.smtpUser = username;
    this.smtpPassword = password;
    this.isAuthenticationSMTP = true;
}

/**
   * 添加附件
   * @param afile 本地文件
   */
public void addAttachment(File afile) {
    vFiles.add(afile);
}

/**
   * 添加附件
   * @param fileURL 文件URL
   */
public void addAttachment(URL fileURL) {
    vURLs.add(fileURL);
}

/**
   * 标示邮件是否附带附件
   * @return
   */
public boolean hasAttachment() {
    return vFiles.size() + vURLs.size() > 0;
}

/**
   * 发送邮件
   */
public void send() {
    try {
      Properties server = new Properties();
      if (StringUtil.isEmpty(this.smtpHost)) {
        throw new NullPointerException("Please set SMTP host");
      }
      else {
        server.put("mail.smtp.host", this.smtpHost);
      }
      server.put("mail.smtp.port", String.valueOf(this.smtpPort));
      if (this.isAuthenticationSMTP) {
        server.put("mail.smtp.auth", "true");
      }
      Session conn = Session.getInstance(server, null);

      MimeMessage msg = new MimeMessage(conn);
      if (StringUtil.isEmpty(this.from)) {
        throw new NullPointerException("Please set FROM address");
      }
      else {
        msg.setFrom(new InternetAddress(this.from));
      }
      if (this.to != null) {
        msg.setRecipients(Message.RecipientType.TO, this.to);
      }
//      else {
//        throw new NullPointerException("Please set TO address");
//      }
      if (this.cc != null) {
        msg.setRecipients(Message.RecipientType.CC, this.cc);
      }
      if (this.bcc != null) {
        msg.setRecipients(Message.RecipientType.BCC, this.bcc);
      }

sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder();
msg.setSubject("=?GB2312?B?" + enc.encode(this.title.getBytes()) + "?=");

      if (!hasAttachment()) {
        //如果没有带附件
        if(this.isHtmlModeMail()){
          //是HTML格式的邮件
          if (!this.hasHtmlDesc()) {
            msg.setContent(this.content, this.content_type);
          }
          else {
            Multipart mp = new MimeMultipart();
            MimeBodyPart mbp = null;

            mbp = new MimeBodyPart();
            mbp.setContent(this.content, this.content_type);
            mp.addBodyPart(mbp);

            mbp = new MimeBodyPart();
            mbp.setContent(this.htmlMailDesc, this.MODE_TEXT);
            mp.addBodyPart(mbp);

            msg.setContent(mp);
          }
        }
        else{
          //是文本格式的邮件
          msg.setText(this.content);
        }

}
 else {
 //有附件
 Multipart mp = new MimeMultipart();
 MimeBodyPart mbp = null;
 //邮件正文
 for (int i = 0; i < vFiles.size(); i++) {
 mbp = new MimeBodyPart();
 File file = (File) vFiles.get(i);
 FileDataSource fds = new FileDataSource(file);
 mbp.setDataHandler(new DataHandler(fds));
 mbp.setFileName(StringUtil.ISO8859_1(file.getName()));
 mp.addBodyPart(mbp);
 }
 for (int i = 0; i < vURLs.size(); i++) {
 mbp = new MimeBodyPart();
 URL url = (URL) vURLs.get(i);
// URLDataSource uds=new URLDataSource(url);
 mbp.setDataHandler(new DataHandler(url));
 mbp.setFileName(StringUtil.ISO8859_1(url.getFile()));
 mp.addBodyPart(mbp);
 }

        mbp = new MimeBodyPart();
        mbp.setContent(this.content, this.content_type);
        mp.addBodyPart(mbp);

        if (this.isHtmlModeMail() && this.hasHtmlDesc()) {
          mbp = new MimeBodyPart();
          mbp.setContent(this.htmlMailDesc, this.MODE_TEXT);
          mp.addBodyPart(mbp);
        }

        msg.setContent(mp);
      }
      msg.saveChanges();
      if (this.isAuthenticationSMTP) {
        Transport transport = conn.getTransport("smtp");
        transport.connect(this.smtpHost, this.smtpUser, this.smtpPassword);
        transport.sendMessage(msg, msg.getAllRecipients());
        transport.close();
      }
      else {
        Transport.send(msg, msg.getAllRecipients());
      }

    }
    catch (javax.mail.internet.AddressException e) {
      e.printStackTrace();
    }
    catch (javax.mail.MessagingException e) {
      e.printStackTrace();
    }
}

public boolean isValidEmailAddress(String email) {
    if (StringUtil.isEmpty(email))
      return false;
    if (email.indexOf("@") > 0)
      return !email.endsWith("@");
    return false;
}

private Address[] getAddress(String[] add) {
 Address[] a = new Address[add.length];
 for (int i = 0; i < add.length; i++) {
 try {
 a[i] = new InternetAddress(add[i]);
 }
 catch (AddressException ex) {
 ex.printStackTrace();
 }
 }
 return a;
}

public boolean isHtmlModeMail(){
return this.content_type.equals(this.MODE_HTML);
}

public boolean hasHtmlDesc(){
if(!this.isHtmlModeMail()) return false;
return !StringUtil.isEmpty(this.htmlMailDesc);
}

/**
* 普通模式
*/
public static final String MODE_TEXT = "text/plain;charset=gb2312";

/**
* HTML模式
*/
public static final String MODE_HTML = "text/html;charset=gb2312";
}

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