Java邮件发送

package com.expai.test;

import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
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;
public class SendMail {
     public static void main(String[] args) {  
         senMail("d:/测试.xls","163","from@163.com","fromPass","to@163.com","Excel文档","Hi，记得查收邮件哦！");
     }
     //category用哪种邮箱发送
     //fromMailAddress发件邮箱地址
     //fromMailPassword发件邮箱密码
     //toMailAddress收件邮箱地址
     //mailTitle邮件标题
     //mailContent邮件文本内容
     public static void senMail(String fileName,String category,String fromMailAddress,String fromMailPassword,String toMailAddress,String mailTitle,String mailContent){
         Properties props = System.getProperties();  
         // 设置smtp服务器  
         props.setProperty("mail.smtp.host", "smtp."+category+".com");  
         // 现在的大部分smpt都需要验证了  
         props.put("mail.smtp.auth", "true");         
         Session s = Session.getInstance(props);  
         // 为了查看运行时的信息  
         s.setDebug(true);  
         // 由邮件会话新建一个消息对象  
         MimeMessage message = new MimeMessage(s);
         
         try {  
             // 发件人  
             InternetAddress from = new InternetAddress(fromMailAddress);  
             message.setFrom(from);  
             // 收件人  
　　　　　　　 //单发
             InternetAddress to = new InternetAddress(toMailAddress);  
             message.setRecipient(Message.RecipientType.TO, to); 
　　　　　　　 //群发 
　　　　　　　 //InternetAddress[] to = InternetAddress.parse("a@163.com,b@163.com"); 
             //message.setRecipients(Message.RecipientType.TO, to);  
             // 邮件标题  
             message.setSubject(mailTitle);  
             String content = mailTitle;  
             // 邮件内容,也可以使纯文本"text/plain"  
             message.setContent(content, "text/html;charset=GBK");  
      
             /****下面代码是发送附件*******/
             MimeBodyPart messageBodyPart = new MimeBodyPart(); 
             messageBodyPart.setText(mailContent); 
             Multipart multipart = new MimeMultipart(); 
             multipart.addBodyPart(messageBodyPart); 
     
             messageBodyPart = new MimeBodyPart(); 
             DataSource source = new FileDataSource(fileName); 
             messageBodyPart.setDataHandler(new DataHandler(source)); 
             //去掉文件路径得到文件名
             fileName = fileName.substring(fileName.indexOf("/")+1,fileName.length());
             //解决文件中文名乱码问题GBk经测试不行
             sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder();
             messageBodyPart.setFileName("=?UTF-8?B?"+enc.encode(fileName.getBytes())+"?=");
                          
             //messageBodyPart.setFileName(fileName); 
             multipart.addBodyPart(messageBodyPart); 
     
             message.setContent(multipart); 
                  
             message.saveChanges();  
             Transport transport = s.getTransport("smtp");

             // smtp验证，就是你用来发邮件的邮箱用户名密码  
             transport.connect("smtp."+category+".com", fromMailAddress, fromMailPassword);  
             // 发送  
             transport.sendMessage(message, message.getAllRecipients());  
             transport.close();  
      
         } catch (Exception e) {  
             e.printStackTrace();  
         }  
     }
}