一个自己用的发送邮件带附件的例子

package com.lixx.mail;

import java.io.FileOutputStream;  

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

import java.util.Properties;  

import javax.activation.DataHandler;  

import javax.activation.FileDataSource;  

import javax.mail.Authenticator;

import javax.mail.Message;  

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 com.lixx.anaylize.DBUtil;

import com.sun.mail.util.MimeUtil;

/**  

 * 创建内含附件、图文并茂的邮件  

 * @author haolloyin  

 */ 

public class WithAttachmentMessage {  

private String mail_body_template = "<div style='background:#DEDEBE'>各位领导、同仁：<br>"+

"&nbsp;&nbsp;&nbsp;&nbsp;大家好！<br>"+

"&nbsp;&nbsp;&nbsp;&nbsp;原太平OA系统已经停止使用，其中的OA公文数据已导入到我司自行开发的简易公文查询系统，使用方法如下：<br>"+

"&nbsp;&nbsp;&nbsp;&nbsp;地址：http://oldoa.minanins.com 或 http://10.192.21.87 <br>"+

"&nbsp;&nbsp;&nbsp;&nbsp;用户名：username<br>"+

"&nbsp;&nbsp;&nbsp;&nbsp;初始密码：password<br>"+

"&nbsp;&nbsp;&nbsp;&nbsp;如果出现用户登不上的问题，请及时与信息技术部李星星联系，联系方式如下：<br>"+

"&nbsp;&nbsp;&nbsp;&nbsp;电话：  075582510020<br>&nbsp;&nbsp;&nbsp;&nbsp;邮箱：    xing-x@minanins.com <br>&nbsp;&nbsp;&nbsp;&nbsp;手机：    15220131047<br>"+

"&nbsp;&nbsp;&nbsp;&nbsp;感谢大家对IT工作的大力支持，谢谢！<br><br>&nbsp;&nbsp;&nbsp;&nbsp;<font size='5' color='#642100'>民安财产保险有限公司信息技术部</font></div>"; 

private String mail_body = "";

private String mail_to = "";

    public String getMail_body() {

return mail_body;

}

public void setMail_body(String mailBody) {

mail_body = mailBody;

}

public String getMail_to() {

return mail_to;

}

public void setMail_to(String mailTo) {

mail_to = mailTo;

}

/**  

     * 根据传入的文件路径创建附件并返回  

     */ 

    public MimeBodyPart createAttachment(String fileName) throws Exception {  

        MimeBodyPart attachmentPart = new MimeBodyPart();  

        FileDataSource fds = new FileDataSource(fileName);  

        attachmentPart.setDataHandler(new DataHandler(fds));  

        attachmentPart.setFileName(MimeUtility.encodeText(fds.getName()));  

        return attachmentPart;  

    }  

    /**  

     * 根据传入的邮件正文body和文件路径创建图文并茂的正文部分  

     */ 

    public MimeBodyPart createContent(String body, String fileName)  

            throws Exception {  

        // 用于保存最终正文部分  

        MimeBodyPart contentBody = new MimeBodyPart();  

        // 用于组合文本和图片，"related"型的MimeMultipart对象  

        MimeMultipart contentMulti = new MimeMultipart("related");  

        // 正文的文本部分  

        MimeBodyPart textBody = new MimeBodyPart();  

        textBody.setContent(body, "text/html;charset=gbk");  

        contentMulti.addBodyPart(textBody);  

        // 正文的图片部分  

        MimeBodyPart jpgBody = new MimeBodyPart();  

        FileDataSource fds = new FileDataSource(fileName);  

        jpgBody.setDataHandler(new DataHandler(fds));  

        jpgBody.setContentID("logo_jpg");  

        contentMulti.addBodyPart(jpgBody);  

        // 将上面"related"型的 MimeMultipart 对象作为邮件的正文  

        contentBody.setContent(contentMulti);  

        return contentBody;  

    }  

public MimeBodyPart createContent(String body) throws Exception {

// 用于保存最终正文部分

MimeBodyPart contentBody = new MimeBodyPart();

// 用于组合文本和图片，"related"型的MimeMultipart对象

MimeMultipart contentMulti = new MimeMultipart("related");

// 正文的文本部分

MimeBodyPart textBody = new MimeBodyPart();

textBody.setContent(body, "text/html;charset=gbk");

contentMulti.addBodyPart(textBody); 

// 将上面"related"型的 MimeMultipart 对象作为邮件的正文

contentBody.setContent(contentMulti);

return contentBody;

}

    /**  

     * 根据传入的 Seesion 对象创建混合型的 MIME消息  

     */ 

    public MimeMessage createMessage(Session session) throws Exception {  

        String from = "xingx-li@*******.com";  

        String to = this.getMail_to();  //shib_zhong@minanins.com

        String subject = "关于使用OA系统密码的邮件";  

        

        MimeMessage msg = new MimeMessage(session);  

        msg.setFrom(new InternetAddress(from));  

        msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to));  

        msg.setSubject(subject);  

        // 创建邮件的各个 MimeBodyPart 部分  

        MimeBodyPart attachment01 = createAttachment("D:\\minganwendang\\E盘\\技术资料\\OA查询系统\\OA查询系统详细操作手册.doc");  

//        MimeBodyPart attachment02 = createAttachment("D:\\minganwendang\\E盘\\技术资料\\OA查询系统\\OA查询系统详细操作手册.doc");  

        MimeBodyPart content = createContent(this.getMail_body());  

        // 将邮件中各个部分组合到一个"mixed"型的 MimeMultipart 对象  

        MimeMultipart allPart = new MimeMultipart("mixed");  

        allPart.addBodyPart(attachment01);  

//        allPart.addBodyPart(attachment02);  

        allPart.addBodyPart(content);  

        // 将上面混合型的 MimeMultipart 对象作为邮件内容并保存  

        msg.setContent(allPart);  

        msg.saveChanges();  

        return msg;  

    }  

    /**

     * 用来进行服务器对用户的认证

     */

   public  class Email_Autherticator extends Authenticator

    {

    private String username="****";

    private String password="*****";

   

        public Email_Autherticator()

        {

            super();

        }

        public Email_Autherticator(String user, String pwd)

        {

            super();

            username = user;

            password = pwd;

        }

        public PasswordAuthentication getPasswordAuthentication()

        {

            return new PasswordAuthentication(username, password);

        }

    }

    

    // 测试生成邮件  

    public static void main(String[] args) throws Exception {  

        WithAttachmentMessage mail = new WithAttachmentMessage();  

        Properties props = new Properties(); // 获取系统环境

       

        Authenticator auth =  mail.new Email_Autherticator(); // 进行邮件服务器用户认证

        props.put("mail.smtp.host", "smtp.****.com");

        props.put("mail.smtp.auth", "true");

        Session session = Session.getDefaultInstance(props,auth);  

        Connection conn = null;

    String str  = "select oa_email,oa_password from oa_user t where oa_email is not null ";

        try {

conn = DBUtil.getInstance().getConnection();

conn.setAutoCommit(false);

Statement st = conn.createStatement() ;

PreparedStatement ps = conn.prepareStatement("update oa_user set oa_password=?,OA_PASSWORD_BAK=? where oa_email=?");

ResultSet rs = st.executeQuery(str);

while(rs.next()){

String tempEmail = rs.getString(1);

/**

* 更新密码

*/

String password = TestHnair.randomPassword("");

String ser_pass = MD5Util.getMD5Str(password);

ps.setString(1, ser_pass);

ps.setString(2,rs.getString(2));

ps.setString(3, tempEmail);

ps.addBatch();

System.out.println(tempEmail+"  "+password+"  "+ser_pass);

/**

* 发送邮件

*/

mail.setMail_to(tempEmail);

mail.setMail_body(

mail.mail_body_template

.replace("username", tempEmail.subSequence(0, tempEmail.indexOf("@")))

.replace("password", password));

MimeMessage message = mail.createMessage(session);  

       //message.writeTo(new FileOutputStream("withAttachmentMail.eml")); 

       Transport.send(message);

}

ps.executeBatch() ;

conn.commit();

ps.close();

conn.close();

System.out.println("send ok!");

} catch (ClassNotFoundException e) {

e.printStackTrace();

conn.rollback();

} catch (SQLException e) {

e.printStackTrace();

conn.rollback();

}finally{

if(!conn.isClosed()){

conn.close();

}

}

        

        

    } 

    

   

}