package net.uni.ap.email;

import java.io.File;
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.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 net.uni.in1.BaseExcelConstants;

public class EmailUtil {

	/**
	 * @param mailAddress 接收郵件地址
	 * @param title  標題
	 * @param textType  內容類別"html"或者正常文字
	 * @param text   內容,根據textType判斷
	 * @return
	 * @方法說明 傳送郵件方法
	 * @date 2012-5-21
	 */
	public static String sendEmail(EmailObject emailObj){
		//建立郵件會話
		Properties props=new Properties();
		//儲存傳送郵件伺服器的資訊
		props.put("mail.smtp.host",EmailConStant.MAIL_SERVER);
		//同時通過驗證
		props.put("mail.smtp.auth","true");
		//根據屬性新建一個郵件會話
		Session s=Session.getInstance(props);
		s.setDebug(true); //有他會列印一些除錯資訊。

		//由郵件會話新建一個訊息物件
		MimeMessage message=new MimeMessage(s);
		//設定郵件
		try {
			InternetAddress from = new InternetAddress(EmailConStant.MAIL_COUNT);
			message.setFrom(from);


			InternetAddress[] tos = new InternetAddress[emailObj.getMailAddresses().length];
			// //設定收件人,並設定其接收型別為TO
			for (int i = 0;i< emailObj.getMailAddresses().length;i++){
				tos[i] = new InternetAddress(emailObj.getMailAddresses()[i]);
			}
			message.setRecipients(Message.RecipientType.TO, tos);
			message.setSubject(emailObj.getTitle());
			//設定發信時間
			message.setSentDate(new Date());
			//儲存郵件資訊
			message.saveChanges();

			//傳送郵件
			Transport transport=s.getTransport("smtp");
			//以smtp方式登入郵箱,第一個引數是傳送郵件用的郵件伺服器SMTP地址,第二個引數為使用者名稱,第三個引數為密碼
			transport.connect(EmailConStant.MAIL_SERVER,EmailConStant.MAIL_COUNT,EmailConStant.MAIL_PASSWORD);
			Multipart mp = new MimeMultipart();
			MimeBodyPart bmp = new MimeBodyPart();

			if (emailObj.getTextType()!=null&&emailObj.getTextType().equals("html"))
				bmp.setContent(emailObj.getText(),"text/html;charset=gbk");
			else
				bmp.setText(emailObj.getText());
			mp.addBodyPart(bmp);
			
			
			//傳送附件
			if(emailObj.getFiles()!=null&&emailObj.getFiles().length>0){
				for(File fs:emailObj.getFiles()){
					if(fs.exists()){
	                    bmp=new MimeBodyPart();
						FileDataSource fds=new FileDataSource(BaseExcelConstants.UPLOADPATH+"/"+fs.getName());
						bmp.setDataHandler(new DataHandler(fds)); 
						String newName =fs.getName().substring(0, fs.getName().lastIndexOf("-"))+fs.getName().substring(fs.getName().lastIndexOf("."));
						//名字需要先轉為ISO 再轉為GB2312 否則郵件內會顯示亂碼  這個很重要。。
						newName =new String(newName.getBytes("gb2312"),"ISO8859-1");
						bmp.setFileName(newName);
						mp.addBodyPart(bmp);
					}
				}
			}
			emailObj.setFiles(null);
			message.setContent(mp);
			message.saveChanges();
			//傳送郵件,其中第二個引數是所有已設好的收件人地址
			transport.sendMessage(message,message.getAllRecipients());
			transport.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}

	public static void main(String[] args) {
		String[] strs = {"
 
[email protected]"};
		EmailObject obj = new EmailObject();
		obj.setMailAddresses(strs);
		obj.setTitle("測試");
		obj.setTextType("text");
		obj.setText("哈哈哈");
		sendEmail(obj);
	}
}

實體類

package net.uni.ap.email;

import java.io.File;

public class EmailObject {
	String[] mailAddresses;//郵件地址
	String title;	//標題
	String textType;	//文字類別。"html" 為html 其他為普通文字  作廢了，現在都用html
	String text;		//文字內容
	File[] files;	//附件列表


	public String[] getMailAddresses() {
		return mailAddresses;
	}
	public void setMailAddresses(String[] mailAddresses) {
		this.mailAddresses = mailAddresses;
	}
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	public String getTextType() {
		return textType;
	}
	public void setTextType(String textType) {
		this.textType = textType;
	}
	public String getText() {
		return text;
	}
	public void setText(String text) {
		this.text = text;
	}
	public File[] getFiles() {
		return files;
	}
	public void setFiles(File[] files) {
		this.files = files;
	}


}