java发送邮件可带附件

强大的Java发送邮件案例，支持添加本地附件或网络附件，支持同时添加多个附件，网页引用，图片引用等。
还提供有Java发送邮件所需的javamail.jar包和activation.jar包下载。

所需jar包（javamail.jar和activation.jar共366K）

 

import java.io.File;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.Authenticator;
import javax.mail.MessagingException;
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.MimeMultipart;
import javax.mail.internet.MimeUtility;

public class MailSend {
	
	/**
	 * 更强大的发送邮件案例
	 * 发件方式枚举
	 * @author lanxj
	 */
	public enum SendTypeEnum{
		TO(0,"发件方式 - 普通发送"),CS(1,"发件方式 - 抄送"),MCS(2,"发件方式 - 密件抄送");
		private int type;
		private String description;
		SendTypeEnum(int type,String desc){
			this.type=type;
			this.description=desc;
		}
		public int intValue(){
			return this.type;
		}
		public String getDescription(){
			return this.description;
		}
	}

	/** 邮件相关信息 - SMTP 服务器 */
	private String smtpHost = null;
	/** 邮件相关信息 - 邮件用户名 */
	private String username = null;
	/** 邮件相关信息 - 密码 */
	private String password = null;
	/** 邮件相关信息 - 发件人邮件地址 */
	private String fromAddress = null;
	/** 邮件相关信息 - 邮件主题 */
	private String subject = "";
	/** 邮件相关信息 - 邮件发送地址 */
	private Address[] toAddress = null;
	/** 邮件相关信息 - 邮件抄送地址 */
	private Address[] csAddress = null;
	/** 邮件相关信息 - 邮件密件抄送地址 */
	private Address[] mcsAddress = null;
	/** 邮件相关信息 - 邮件正文(复合结构) */
	private MimeMultipart context = null;

	public MailSend() {
		context = new MimeMultipart();
	}

	/**
	 * 设置 SMTP 服务器
	 * @param strSMTPHost 邮件服务器名称或 IP
	 * @param strUser 邮件用户名
	 * @param strPassword 密码
	 */
	public void setSMTP(String strSMTPHost, String strUser,
			String strPassword) {
		this.smtpHost = strSMTPHost;
		this.username = strUser;
		this.password = strPassword;
	}

	/**
	 * 设置邮件发送地址
	 * @param strFromAddress 邮件发送地址
	 */
	public void setFromAddress(String strFromAddress) {
		this.fromAddress = strFromAddress;
	}

	/**
	 * 设置邮件目的地址
	 * @param strAddress 邮件目的地址列表, 不同的地址可用;号分隔
	 * @param iAddressType 邮件发送方式 (SendTypeEnum.TO 0, SendTypeEnum.CS 1, SendTypeEnum.MCS 2) 枚举已在本类定义
	 * @throws AddressException
	 */
	public void setAddress(String strAddress, SendTypeEnum iAddressType) throws AddressException {
		if (iAddressType==SendTypeEnum.TO) {
			ArrayList alAddress = splitStr(strAddress, ';');
			toAddress = new Address[alAddress.size()];
			for (int i = 0; i < alAddress.size(); i++) {
				toAddress[i] = new InternetAddress( (String) alAddress.get(i));
			}
		}else if (iAddressType==SendTypeEnum.CS) {
			ArrayList alAddress = splitStr(strAddress, ';');
			csAddress = new Address[alAddress.size()];
			for (int i = 0; i < alAddress.size(); i++) {
				csAddress[i] = new InternetAddress( (String) alAddress.get(i));
			}
		}else if (iAddressType==SendTypeEnum.MCS) {
			ArrayList alAddress = splitStr(strAddress, ';');
			mcsAddress = new Address[alAddress.size()];
			for (int i = 0; i < alAddress.size(); i++) {
				mcsAddress[i] = new InternetAddress( (String) alAddress.get(i));
			}
		}
	}

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

	/**
	 * 设置邮件文本正文
	 * @param strTextBody 邮件文本正文
	 * @throws MessagingException
	 */
	public void setContext(String strTextBody) throws MessagingException {
		MimeBodyPart mimebodypart = new MimeBodyPart();
		mimebodypart.setText(strTextBody, "GBK");
		context.addBodyPart(mimebodypart);
	}

	/**
	 * 设置邮件超文本正文
	 * @param strHtmlBody 邮件超文本正文
	 * @throws MessagingException
	 */
	public void setHtmlContext(String strHtmlBody) throws MessagingException {
		MimeBodyPart mimebodypart = new MimeBodyPart();
		mimebodypart.setDataHandler(new DataHandler(strHtmlBody, "text/html;charset=GBK"));
		context.addBodyPart(mimebodypart);
	}

	/**
	 * 设置邮件正文外部链接 URL, 信体中将包含链接所指向的内容
	 * @param strURLAttachment 邮件正文外部链接 URL
	 * @throws MessagingException
	 * @throws MalformedURLException
	 */
	public void setURLAttachment(String strURLAttachment) throws
	MessagingException, MalformedURLException {
		MimeBodyPart mimebodypart = new MimeBodyPart();
		mimebodypart.setDataHandler(new DataHandler(new URL(strURLAttachment)));
		context.addBodyPart(mimebodypart);
	}

	/**
	 * 设置邮件附件
	 * @param strFileAttachment 文件的全路径
	 * @throws MessagingException
	 * @throws UnsupportedEncodingException
	 */
	public void setFileAttachment(String strFileAttachment) throws MessagingException, UnsupportedEncodingException {
		File path = new File(strFileAttachment);
		if (!path.exists() || path.isDirectory()) {
			return;
		}
		String strFileName = path.getName();
		MimeBodyPart mimebodypart = new MimeBodyPart();
		mimebodypart.setDataHandler(new DataHandler(new FileDataSource(
				strFileAttachment)));
		// modified by zord @ 2003/6/16 to support Chinese File Name
		// mimebodypart.setFileName(strFileName);
		mimebodypart.setFileName(MimeUtility.encodeText(strFileName));
		// end of modify
		context.addBodyPart(mimebodypart);
	}

	/**
	 * 主方法：邮件发送(一次发送多个地址, 优点速度快, 但是有非法邮件地址时将中断发送操作)
	 * 前提条件{
	 * 		setSMTP();【必选】
	 * 		setFromAddress();【必选】
	 * 		setAddress();【必选】
	 * 		setSubject();【必选】
	 * 		set*Context();【必选】
	 * 		set*Attachment();【可选】
	 * }
	 * @throws MessagingException
	 */
	@SuppressWarnings("static-access")
	public void sendBatch() throws MessagingException {
		Properties properties = new Properties();
		properties.put("mail.smtp.host", this.smtpHost);
		properties.put("mail.smtp.auth", "true");//必须
		Session session = Session.getInstance(properties, new Authenticator(){
			protected javax.mail.PasswordAuthentication getPasswordAuthentication(){//这个很重要，当今mail服务器大多都是通过认证才能发信的
				 return new javax.mail.PasswordAuthentication(MailSend.this.username, MailSend.this.password);
			}
		});
		MimeMessage mimemessage = new MimeMessage(session);
		mimemessage.setFrom(new InternetAddress(this.fromAddress));
		if (toAddress != null) {
			mimemessage.addRecipients(javax.mail.Message.RecipientType.TO, this.toAddress);
		}
		if (csAddress != null) {
			mimemessage.addRecipients(javax.mail.Message.RecipientType.CC, this.csAddress);
		}
		if (mcsAddress != null) {
			mimemessage.addRecipients(javax.mail.Message.RecipientType.BCC, this.mcsAddress);
		}
		mimemessage.setSubject(this.subject);
		mimemessage.setContent(this.context);
		mimemessage.setSentDate(new Date());
		
		/*发送方式一
		Transport transport = session.getTransport("smtp");
		transport.connect(this.smtpHost, this.username, this.password);
		transport.send(mimemessage);
		*/
		//发送方式二
		Transport.send(mimemessage);
		
		System.out.println("已向下列邮箱发送了邮件");
		showAddress(toAddress,csAddress,mcsAddress);
	}
	
	/**
	 * 显示所有的收件人地址信息
	 * @param addresses
	 */
	private static void showAddress(Address[] ... addresses){
		if (addresses != null) {
			for (int i = 0; i < addresses.length; i++) {
				if(addresses[i]!=null){
					for (int j = 0; j < addresses[i].length; j++) {
						System.out.println(addresses[i][j]);
					}
				}
			}
		}
	}
	
	/**
	 * 将字符串分割成字符串集合
	 * @param str 字符串
	 * @param sp 分隔符
	 * @return
	 */
	private static ArrayList splitStr(String str,char sp){
		ArrayList retu=new ArrayList();
		String []res=str.split(""+sp);
		for (String s : res) {
			retu.add(s);
		}
		return retu;
	}

	
	public static void main(String[] args) {
		try {
			MailSend mail=new MailSend();
			mail.setFromAddress("[e-mail]");
			mail.setSMTP("smtp.163.com","[e-mail]","password");
			
			mail.setAddress("[e-mail];[e-mail]",SendTypeEnum.TO);
//			mail.setAddress("[e-mail]", SendTypeEnum.CS);
//			mail.setAddress("[e-mail]", SendTypeEnum.MCS);
			mail.setSubject("邮件发送测试");//标题
//			mail.setContext("如有打扰，请见谅，谢谢！");//内容
//			mail.setHtmlContext("如有打扰
，请见谅
，谢谢！");//支持html
			try{
				mail.setFileAttachment("D:\temp\tnsnames_sh.ora");//本地附件
				mail.setURLAttachment("http://static.tieba.baidu.com/tb/img/2010120801.jpg");//网络文件
//				mail.setURLAttachment("http://static.tieba.baidu.com/tb/editor/images/jd/j_0017.gif");
				mail.setURLAttachment("http://tieba.baidu.com");//引用网页
			}catch (Exception e) {
				System.out.println("附件发送异常");
			}
			mail.sendBatch();
		} catch (AddressException e) {
			e.printStackTrace();
		} catch (MessagingException e) {
			e.printStackTrace();
		}
	}

}