java email 带附件 内容HTML格式

之前写了一篇简单的email发送，见http://blog.youkuaiyun.com/spring123tt/article/details/12427633

有了这个基础，我们再整个多姿多彩的，带附件的email。。。。

简单的email发送中的邮件内容都是一行文字，如果需要邮件内容带有格式，那么我们可以直接用html模板来定义好格式，再用messageformat来格式化，得到丰富的邮件内容。

另外，可能我们还需要发送附件给用户，那么我们还要带上附件。

废话少说，先贴上效果图：

额，HTML格式没怎么调整，有种错乱美对吧。。。。

贴代码了：

package email;

import java.io.File;
import java.text.MessageFormat;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
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;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

/**
 * 带内容样式和附件的邮件
 * 
 * @author：Ellrien
 * @date: 2013-10-9上午10:14:05
 * @version: 1.0
 */
public class EmailAttachment {

	/**
	 * 发送呗
	 */
	public void send() {
		String from = "zhangsan@163.com";
		String to = "lisi@126.com,wangwu@qq.com";
		String subject = "我是邮件主题";
		String secret = "邮箱密码不告诉你";
		String filePath = "C:/Users/Administrator/Desktop/我是XML模板_utf8.txt";
		String imgPath = "C:/Users/Administrator/Desktop/我是模板中要插入的图片.gif";
		String attachmentPath = "C:/Users/Administrator/Desktop/我是附件.txt";// 图片、文本、压缩包均可

		// 邮件服务器的服务器名
		String mailServerName = "smtp.163.com";

		try {
			// 获得系统属性
			Properties prop = new Properties();
			// 设置属性
			prop.setProperty("mail.smtp.host", mailServerName);
			prop.setProperty("mail.smtp.auth", "true");// 是否采用认证

			String name = from.substring(0, from.indexOf("@"));
			MyAuthenticator au = new MyAuthenticator(name, secret);
			Session session = Session.getDefaultInstance(prop, au);
			// 创建邮件信息的载体message
			Message message = new MimeMessage(session);
			message.setFrom(new InternetAddress(from));
			/**
			 * 发送多人 若只发送给一个人直接采用 message.setRecipient(Message.RecipientType.TO,
			 * new InternetAddress(to));
			 */
			String toAddresss[] = to.split(",");
			InternetAddress[] adrs = new InternetAddress[toAddresss.length];
			for (int i = 0; i < toAddresss.length; i++) {
				adrs[i] = new InternetAddress(toAddresss[i]);
			}
			message.setRecipients(Message.RecipientType.TO, adrs);

			message.setSubject(subject);
			message.setSentDate(new Date());
			// 采用XML模板，可以让邮件带有HTML的格式
			String str = new ReaderXML().read(filePath);
			Object[] obj = new Object[] { "zhangsan", "123456", "x" };// X为任意标识
			// MessageFormat 格式化字符串
			str = MessageFormat.format(str, obj);
			MimeBodyPart mbp1 = new MimeBodyPart();
			mbp1.setContent(str, "text/html;charset=utf-8");
			/*
			 * XML中图片处理,跟下面的附件上传是一个原理
			 */
			MimeBodyPart mbp2 = new MimeBodyPart();
			FileDataSource fds = new FileDataSource(imgPath);
			DataHandler dh = new DataHandler(fds);
			mbp2.setDataHandler(dh);
			mbp2.setFileName(MimeUtility.encodeText(fds.getName()));
			// 比附件上传多一个绑定工作，对应上面的标识
			mbp2.setHeader("Content-ID", "x");

			/*
			 * 附件上传
			 */
			MimeBodyPart mbp3 = new MimeBodyPart();
			FileDataSource fds2 = new FileDataSource(attachmentPath);
			DataHandler dh2 = new DataHandler(fds2);
			mbp3.setDataHandler(dh2);
			mbp3.setFileName(MimeUtility.encodeText(fds2.getName()));

			Multipart mp = new MimeMultipart();
			mp.addBodyPart(mbp1);
			mp.addBodyPart(mbp2);
			mp.addBodyPart(mbp3);
			message.setContent(mp);
			// 发送
			Transport.send(message);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 读取XML的类
	 * @author：Ellrien
	 * @date: 2013-10-10 上午11:07:22
	 * @version: 1.0
	 */
	class ReaderXML {
		public String read(String path) {
			String str = null;
			str = reader(path);
			return str;
		}

		private String reader(String path) {
			SAXReader reader = new SAXReader();
			String str = null;
			try {
				Document d = reader.read(new File(path));
				Element e = d.getRootElement();
				Element htmle = e.element("html");
				str = htmle.asXML();
			} catch (DocumentException e) {
				e.printStackTrace();
			}
			return str;
		}

	}

	/**
	 * 邮箱认证类
	 * @author：Ellrien
	 * @date: 2013-10-10 上午11:07:36
	 * @version: 1.0
	 */
	class MyAuthenticator extends javax.mail.Authenticator {
		private String strUser;
		private String strPwd;

		public String getStrUser() {
			return strUser;
		}

		public void setStrUser(String strUser) {
			this.strUser = strUser;
		}

		public String getStrPwd() {
			return strPwd;
		}

		public void setStrPwd(String strPwd) {
			this.strPwd = strPwd;
		}

		public MyAuthenticator(String user, String password) {
			this.strUser = user;
			this.strPwd = password;
		}

		protected PasswordAuthentication getPasswordAuthentication() {
			return new PasswordAuthentication(strUser, strPwd);
		}

	}

	/**
	 * 测试呗
	 */
	public static void main(String[] args) {
		EmailAttachment instance = new EmailAttachment();
		instance.send();
	}

}

额，还有个XML模板给大家：

<?xml version="1.0" encoding="UTF-8"?>  
<xml-body>  
    <html>  
        <head>  
        </head>  
        <body>  
            <div id="main" style="width:966px; height:330px; text-align:left;  
                margin:3px 26px; background-color:#F5F5F5; border:1px  
                #E1E1E1 solid;">  
                <b>  
                    账号:{0}  
                    <br />  
                    密码:{1}  
                    <br />  
                    <a href="http://www.google.com.hk">带上帐密去Google看看</a>  
                </b>  
                <span style="color: #ff0000;"><img src="cid:{2}" /></span>  
            </div>  
        </body>  
    </html>  
  
</xml-body>