java mail 發送多個附件

更新代碼：

service:

package com.yizhilu.os.core.service.email;


/**
 * 
 * @ClassName  EmailService
 * @package com.fairyhawk.common.service
 * @description
 * @author  liuqinggang
 * @Create Date: 2013-3-14 下午7:18:15
 *
 */

public interface EmailService {
	/**
	 * 單人郵件
	 * @param mailto
	 * @param fromEmail
	 * @param text
	 * @param title
	 * @throws Exception
	 */
	public void sendMail(String mailto, String text, String title) throws Exception;
	
    /**
     * 羣發郵件
     * 
     * @param mailto
     * @param fromEmail
     * @param text
     * @param title
     * @throws Exception
     */
    public void sendBatchMail(String[] mailto,String text, String title) ;
    
    /**
     * 單人發送文件
     * @param mailto
     * @param fromEmail
     * @param text
     * @param title
     * @param filePath
     */
    public void sendMailWithFile(String mailto, String text, String title, String[] filePath) throws Exception;
    

    /**
     * 羣發文件
     * @param mailto
     * @param fromEmail
     * @param text
     * @param title
     * @throws Exception
     */
    public void sendBatchMailWithFile(String[] mailto,  String text, String title, String[] filePath) throws Exception;
    
}

EmailServiceImpl

package com.yizhilu.os.core.service.email;

import java.util.ArrayList;
import java.util.List;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
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.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;


/**
 * 
 * @ClassName  EmailServiceImpl
 * @package com.fairyhawk.common.service
 * @description 郵件服務實現
 * @author  liuqinggang
 * @Create Date: 2013-3-14 下午7:14:41
 *
 */
@Service("emailService")
public class EmailServiceImpl implements EmailService {

    @Autowired
	private JavaMailSenderImpl javaMailSender;

    private static final Log logger = LogFactory.getLog(EmailServiceImpl.class);
	
	/**
	 * 單人郵件
	 */
	@Override
	public void sendMail(String mailto,String text, String title) throws Exception {

        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
        MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
        messageHelper.setFrom(new InternetAddress(javaMailSender.getUsername()));
        messageHelper.setSubject(title);
        messageHelper.setText(text, true);
        messageHelper.setTo(new InternetAddress(mailto));
        mimeMessage = messageHelper.getMimeMessage();
        //javaMailSender.send(mimeMessage);
        EmailThread et = new EmailThread(mimeMessage);
        et.start();

    }
	
    /**
      *羣發郵件
     */
    @Override
    public void sendBatchMail(String[] mailto, String text, String title)  {
        for (int i = 0; i < mailto.length; i++) {
            try {
                sendMail(mailto[i], text, title);
            } catch (Exception e) {
            	logger.error("+++ sendBatchMail error email:"+mailto[i]);
            }
        }
    }

    /**
	 * 單人文件
	 */
	public void sendMailWithFile(String mailto,  String text, String title, String[] filePath) throws Exception {

        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
        MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
        messageHelper.setFrom(new InternetAddress(javaMailSender.getUsername()));
        messageHelper.setSubject(title);
        messageHelper.setText(text, true);
        messageHelper.setTo(new InternetAddress(mailto));
        mimeMessage = messageHelper.getMimeMessage();

        if (filePath != null) {
            BodyPart mdp = new MimeBodyPart();// 新建一個存放信件內容的BodyPart對象
            mdp.setContent(text, "text/html;charset=UTF-8");// 給BodyPart對象設置內容和格式/編碼方式
            Multipart mm = new MimeMultipart();// 新建一個MimeMultipart對象用來存放BodyPart對象
            mm.addBodyPart(mdp);// 將BodyPart加入到MimeMultipart對象中(可以加入多個BodyPart)
            // 把mm作爲消息對象的內容
            MimeBodyPart filePart;
            FileDataSource filedatasource;
            // 逐個加入附件
            for (int j = 0; j < filePath.length; j++) {
                filePart = new MimeBodyPart();
                filedatasource = new FileDataSource(filePath[j]);
                filePart.setDataHandler(new DataHandler(filedatasource));
                try {
                    filePart.setFileName(MimeUtility.encodeText(filedatasource.getName()));
                } catch (Exception e) {
                    e.printStackTrace();
                }
                mm.addBodyPart(filePart);
            }
            mimeMessage.setContent(mm);
        }
        EmailThread et = new EmailThread(mimeMessage);
        et.start();
    }
    /**
	 * 羣發文件
	 */
    @Override
    public void sendBatchMailWithFile(String[] mailto, String text, String title, String[] filePath) throws Exception {

        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
        MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
        messageHelper.setFrom(new InternetAddress(MimeUtility.encodeText(javaMailSender.getUsername())));
        messageHelper.setSubject(title);
        if (filePath != null) {
            BodyPart mdp = new MimeBodyPart();// 新建一個存放信件內容的BodyPart對象
            mdp.setContent(text, "text/html;charset=UTF-8");// 給BodyPart對象設置內容和格式/編碼方式
            Multipart mm = new MimeMultipart();// 新建一個MimeMultipart對象用來存放BodyPart對象
            mm.addBodyPart(mdp);// 將BodyPart加入到MimeMultipart對象中(可以加入多個BodyPart)
            // 把mm作爲消息對象的內容
            MimeBodyPart filePart;
            FileDataSource filedatasource;
            // 逐個加入附件
            for (int j = 0; j < filePath.length; j++) {
                filePart = new MimeBodyPart();
                filedatasource = new FileDataSource(filePath[j]);
                filePart.setDataHandler(new DataHandler(filedatasource));
                try {
                    filePart.setFileName(MimeUtility.encodeText(filedatasource.getName()));
                } catch (Exception e) {
                    e.printStackTrace();
                }
                mm.addBodyPart(filePart);
            }
            mimeMessage.setContent(mm);
        } else {
            messageHelper.setText(text, true);
        }

        List<InternetAddress> list = new ArrayList<InternetAddress>();// 不能使用string類型的類型，這樣只能發送一個收件人
        for (int i = 0; i < mailto.length; i++) {
            list.add(new InternetAddress(mailto[i]));
        }
        InternetAddress[] address = list.toArray(new InternetAddress[list.size()]);

        mimeMessage.setRecipients(Message.RecipientType.TO, address);
        mimeMessage = messageHelper.getMimeMessage();

        EmailThread et = new EmailThread(mimeMessage);
        et.start();

    }
	
	/**
	 * 內部類發送郵件線程
	 * @ClassName  EmailThread
	 * @package com.fairyhawk.common.service
	 * @description
	 * @author  liuqinggang
	 * @Create Date: 2013-3-14 下午7:27:12
	 *
	 */
	class EmailThread extends Thread {

        private final MimeMessage mimeMessage;

        public EmailThread(MimeMessage mimeMessage) {
            this.mimeMessage = mimeMessage;
        }

        @Override
        public void run() {
            javaMailSender.send(mimeMessage);
        }

    }
	
}

applicationContext.xml

 <!-- 郵件發送線程類-->
	<bean name="javaMailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
		<property name="host" value="${email.host}" />
		<property name="defaultEncoding" value="UTF-8"></property>
		<property name="username" value="${email.username}"></property>
		<property name="password" value="${email.password}"></property>
		<property name="javaMailProperties">
			<map>
				<entry key="mail.smtp.auth" value="true" />
			</map>
		</property>
	</bean>