JavaMail邮件发送-发送带附件的邮件

之前已经看到，如果消息包指定了他们之间的关系，增加一个文件进去，邮箱就会显示成普通附件

但是那毕竟不是附件，附件就是附件不能含糊

 

其实增加附件很简单

指定消息包内元素为混合关系

增加附件并指定附件的名称

 

代码如下：

package com.mail;
 import java.util.Date;
 import java.util.Properties;
 import javax.activation.DataHandler;
 import javax.activation.FileDataSource;
 import javax.mail.Message;
 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;
 public class Html_File_InnerFile {
     public static void main(String[] args) throws Exception {
         Properties props = new Properties();
         props.put( "mail.smtp.host ", "smtp.163.com ");
         props.put("mail.smtp.auth", "true");
        Session session = Session.getInstance(props);
         Message message = new MimeMessage(session);
         InternetAddress from = new InternetAddress("[email protected]");
         from.setPersonal(MimeUtility.encodeText("风中落叶"));
        message.setFrom(from);
         InternetAddress to = new InternetAddress("[email protected]");
        message.setRecipient(Message.RecipientType.TO, to);
         message.setSubject(MimeUtility.encodeText("强哥邀请，谁敢不从！"));
         message.setSentDate(new Date());
         MimeMultipart msgMultipart = new MimeMultipart("mixed");// 指定为混合关系
        message.setContent(msgMultipart);
         // 邮件内容
         MimeBodyPart htmlPart = new MimeBodyPart();
        htmlPart.setContent(
                         ""
                                 + "
                                 + "100px;width: 200px;' align='center'>"
                                 + "这是测试邮件，请勿回复" + "

",   

                        "text/html;charset=UTF-8");   

        // TODO 组装的顺序非常重要，一定要先组装文本域，再组装文件   

        msgMultipart.addBodyPart(htmlPart);   

        // 组装附件   

        MimeBodyPart file = new MimeBodyPart();   

        FileDataSource file_datasource = new FileDataSource("D:\\img201008031058340.zip");   

        DataHandler dh = new DataHandler(file_datasource);   

        file.setDataHandler(dh);   

        // 附件区别内嵌内容的一个特点是有文件名，为防止中文乱码要编码   

        file.setFileName(MimeUtility.encodeText(dh.getName()));   

        msgMultipart.addBodyPart(file);        

        message.saveChanges();   

        Transport transport = session.getTransport("smtp");   

        transport.connect("smtp.163.com", 25, "test20120711120200", "test123456");   

        transport.sendMessage(message, message.getAllRecipients());   

        transport.close();   

        System.out.println("发送完毕");   

    }   

}  

package com.mail;
import java.util.Date;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Message;
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;
public class Html_File_InnerFile {
	public static void main(String[] args) throws Exception {
		Properties props = new Properties();
		props.put( "mail.smtp.host ", "smtp.163.com ");
		props.put("mail.smtp.auth", "true");
		Session session = Session.getInstance(props);
		Message message = new MimeMessage(session);
		InternetAddress from = new InternetAddress("[email protected]");
		from.setPersonal(MimeUtility.encodeText("风中落叶"));
		message.setFrom(from);
		InternetAddress to = new InternetAddress("[email protected]");
		message.setRecipient(Message.RecipientType.TO, to);
		message.setSubject(MimeUtility.encodeText("强哥邀请，谁敢不从！"));
		message.setSentDate(new Date());
		MimeMultipart msgMultipart = new MimeMultipart("mixed");// 指定为混合关系
		message.setContent(msgMultipart);
		// 邮件内容
		MimeBodyPart htmlPart = new MimeBodyPart();
		htmlPart.setContent(
						""
								+ "
"
								+ "这是测试邮件，请勿回复" + "
",
						"text/html;charset=UTF-8");
		// TODO 组装的顺序非常重要，一定要先组装文本域，再组装文件
		msgMultipart.addBodyPart(htmlPart);
		// 组装附件
		MimeBodyPart file = new MimeBodyPart();
		FileDataSource file_datasource = new FileDataSource("D:\\img201008031058340.zip");
		DataHandler dh = new DataHandler(file_datasource);
		file.setDataHandler(dh);
		// 附件区别内嵌内容的一个特点是有文件名，为防止中文乱码要编码
		file.setFileName(MimeUtility.encodeText(dh.getName()));
		msgMultipart.addBodyPart(file);		
		message.saveChanges();
		Transport transport = session.getTransport("smtp");
		transport.connect("smtp.163.com", 25, "test20120711120200", "test123456");
		transport.sendMessage(message, message.getAllRecipients());
		transport.close();
		System.out.println("发送完毕");
	}
}

  

主要组装元素的时候一定要先组装邮件内容再组装附件

 无论在 客户端工具还是邮箱，都是提示附件，邮件还是带背景图片的

 

 

 

 附件名称是你自己指定的

 

最后：

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http://cuisuqiang.iteye.com/ ！