mail.java

jsp实现邮件的方法和上传的方法,可以用来实现邮件的收发和文件上传

import java.util.* ;   
import java.io.* ;   
import javax.mail.* ;   
import javax.mail.internet.* ;   
import javax.activation.* ; 
  
public class Mail {   
	String[] to; 
	String[] cc;  
	String[] bcc;  
	String from;   
	String host="";   
	String subject="";
	String body="";
	Vector files = new Vector();   
	
	public Mail (String[] to,String from,String smtpServer,String subject,String body){   
		this.to=to;   
		this.from=from;   
		this.host=smtpServer;   
		this.subject=subject;   
		this.body = body;
	}
	
	public void setCc(String[] cc){//抄送
		this.cc = cc;	
	} 
	
	public void setBcc(String[] bcc){//暗送
		this.bcc = bcc;	
	}  
	
	public void attachfile(String fname){   
		files.addElement(fname);   
	}   
	
	public boolean send(){   
		Properties props = System.getProperties();   
		props.put("mail.smtp.host", host);   
		Session session=Session.getDefaultInstance(props, null); 
		
		try {   
			MimeMessage msg = new MimeMessage(session);   
			msg.setFrom(new InternetAddress(from));
			
			//设置收件人  
			InternetAddress[] address= new InternetAddress[to.length];
			for(int i=0;i<to.length;i++){
				address[i] = new InternetAddress(to[i]);	
			}
			msg.setRecipients(Message.RecipientType.TO,address);   
			
			//设置抄送人  
			if(cc != null){
				address= new InternetAddress[cc.length];
				for(int i=0;i<cc.length;i++){
					address[i] = new InternetAddress(cc[i]);	
				}
				msg.setRecipients(Message.RecipientType.CC,address);   
			}
			
			//设置暗送人
			if(bcc != null){
				address= new InternetAddress[bcc.length];
				for(int i=0;i<bcc.length;i++){
					address[i] = new InternetAddress(bcc[i]);	
				}
				msg.setRecipients(Message.RecipientType.BCC,address);   
			}

			//设置邮件主题
			msg.setSubject(subject);   
			
			//创建复合邮件体，后面的BodyPart将加入到此处创建的Multipart中   
			Multipart mp = new MimeMultipart();   
			
			MimeBodyPart mbp = null; 
			mbp = new MimeBodyPart(); 
			mbp.setText(body); 
			mp.addBodyPart(mbp); 
			
			for(int i=0;i<files.size();i++){
				String fileName = (String)files.elementAt(i);				
				mbp=new MimeBodyPart();
				FileDataSource fds=new FileDataSource(fileName);   
				mbp.setDataHandler(new DataHandler(fds));   
				mbp.setFileName(fds.getName());   
				mp.addBodyPart(mbp);   
			}
			files.removeAllElements();
			msg.setContent(mp);   
			msg.setSentDate(new Date());  
			Transport.send(msg);   
		} catch (MessagingException mex) {   
			mex.printStackTrace();   
			return false;   
		}   
		return true;   
	}   
	
	public static void main(String[] args){
		String[] to = {"[e-mail]"};
		String[] cc = {"[e-mail]","[e-mail]"};
		String[] bcc = {"[e-mail]"};
		String body = "最后一次想你！\nbye-bye,world!";
		Mail mail = new Mail(to,"[e-mail]","127.0.0.1","测试带附件的邮件",body);
		mail.setCc(cc);
		mail.setBcc(bcc);
		mail.attachfile("E:\\ex\\love.pps");
		mail.send();	
	}
}