javaMail

import java.util.Date;
import java.util.Enumeration;
import java.util.Properties;
import java.util.Vector;

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 javax.mail.internet.MimeUtility;


/**
* <p>
* Title: 使用javamail发送邮件
* </p>
*/ 
public class MailUtils { 
 
    String to = "";// 收件人 
    String from = "";// 发件人 
    String host = "";// smtp主机 
    String username = ""; 
    String password = ""; 
    String filename = "";// 附件文件名 
    String subject = "";// 邮件主题 
    String content = "";// 邮件正文 
    Vector file = new Vector();// 附件文件集合 
 
    /**
     * <br>
     * 方法说明:默认构造器 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public MailUtils() { 
    } 
 
    /**
     * <br>
     * 方法说明:构造器,提供直接的参数传入 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public MailUtils(String to, String from, String smtpServer, 
            String username, String password, String subject, String content) { 
        this.to = to; 
        this.from = from; 
        this.host = smtpServer; 
        this.username = username; 
        this.password = password; 
        this.subject = subject; 
        this.content = content; 
    } 
 
    /**
     * <br>
     * 方法说明:设置邮件服务器地址 <br>
     * 输入参数:String host 邮件服务器地址名称 <br>
     * 返回类型:
     */ 
    public void setHost(String host) { 
        this.host = host; 
    } 
 
    /**
     * <br>
     * 方法说明:设置登录服务器校验密码 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public void setPassWord(String pwd) { 
        this.password = pwd; 
    } 
 
    /**
     * <br>
     * 方法说明:设置登录服务器校验用户 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public void setUserName(String usn) { 
        this.username = usn; 
    } 
 
    /**
     * <br>
     * 方法说明:设置邮件发送目的邮箱 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public void setTo(String to) { 
        this.to = to; 
    } 
 
    /**
     * <br>
     * 方法说明:设置邮件发送源邮箱 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public void setFrom(String from) { 
        this.from = from; 
    } 
 
    /**
     * <br>
     * 方法说明:设置邮件主题 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public void setSubject(String subject) { 
        this.subject = subject; 
    } 
 
    /**
     * <br>
     * 方法说明:设置邮件内容 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public void setContent(String content) { 
        this.content = content; 
    } 
 
    /**
     * <br>
     * 方法说明:把主题转换为中文 <br>
     * 输入参数:String strText <br>
     * 返回类型:
     */ 
    public String transferChinese(String strText) { 
        try { 
            strText = MimeUtility.encodeText(new String(strText.getBytes(), 
                    "GB2312"), "GB2312", "B"); 
        } catch (Exception e) { 
            e.printStackTrace(); 
        } 
        return strText; 
    } 
 
    /**
     * <br>
     * 方法说明:往附件组合中添加附件 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public void attachfile(String fname) { 
        file.addElement(fname); 
    } 
 
    /**
     * <br>
     * 方法说明:发送邮件 <br>
     * 输入参数: <br>
     * 返回类型:boolean 成功为true,反之为false
     */ 
    public boolean sendMail() { 
 
        // 构造mail session 
        Properties props = new Properties(); 
        props.put("mail.smtp.host", host); 
        props.put("mail.smtp.auth", "true"); 
        Session session = Session.getDefaultInstance(props); 
        //Session session = Session.getDefaultInstance(props); 
//      Session session = Session.getDefaultInstance(props, null); 
 
        try { 
            // 构造MimeMessage 并设定基本的值 
            MimeMessage msg = new MimeMessage(session); 
            //MimeMessage msg = new MimeMessage(); 
            msg.setFrom(new InternetAddress(from)); 
          
             
            //msg.addRecipients(Message.RecipientType.TO, address); //这个只能是给一个人发送email 
            msg.setRecipients(Message.RecipientType.BCC, InternetAddress.parse(to)) ; 
            subject = transferChinese(subject); 
            msg.setSubject(subject); 
 
            // 构造Multipart 
            Multipart mp = new MimeMultipart(); 
 
            // 向Multipart添加正文 
            MimeBodyPart mbpContent = new MimeBodyPart(); 
            mbpContent.setContent(content, "text/html;charset=gb2312"); 
             
            // 向MimeMessage添加(Multipart代表正文) 
            mp.addBodyPart(mbpContent); 
 
            // 向Multipart添加附件 
            Enumeration efile = file.elements(); 
            while (efile.hasMoreElements()) { 
 
                MimeBodyPart mbpFile = new MimeBodyPart(); 
                filename = efile.nextElement().toString(); 
                FileDataSource fds = new FileDataSource(filename); 
                mbpFile.setDataHandler(new DataHandler(fds)); 
                //<span style="color: #ff0000;">//这个方法可以解决附件乱码问题。</span>   
                String filename= new String(fds.getName().getBytes(),"ISO-8859-1"); 
 
                mbpFile.setFileName(filename); 
                // 向MimeMessage添加(Multipart代表附件) 
                mp.addBodyPart(mbpFile); 
 
            } 
 
            file.removeAllElements(); 
            // 向Multipart添加MimeMessage 
            msg.setContent(mp); 
            msg.setSentDate(new Date()); 
            msg.saveChanges() ; 
            // 发送邮件 
             
            Transport transport = session.getTransport("smtp"); 
            transport.connect(host, username, password); 
            transport.sendMessage(msg, msg.getAllRecipients()); 
            transport.close(); 
        } catch (Exception mex) { 
            mex.printStackTrace(); 
//          Exception ex = null; 
//          if ((ex = mex.getNextException()) != null) { 
//              ex.printStackTrace(); 
//          } 
            return false; 
        } 
        return true; 
    } 
 
 
     
    /**
     * <br>
     * 方法说明:主方法,用于测试 <br>
     * 输入参数: <br>
     * 返回类型:
     */ 
    public static void main(String[] args) { 
        MailUtils sendmail = new MailUtils(); 
         
        sendmail.setHost("smtp.163.com"); 
        sendmail.setUserName("[email protected]"); 
        sendmail.setPassWord("xxxxxx"); 
        sendmail.setTo("[email protected]"); 
        sendmail.setFrom("[email protected]"); 
        sendmail.setSubject("你好,这是测试!"); 
        sendmail.setContent("你好这是一个带多附件的测试!"); 
        // Mail sendmail = new 
        // Mail("[email protected]","[email protected]","smtp.sohu.com","du_jiang","31415926","你好","胃,你好吗?"); 
        //sendmail.attachfile("d:\\news.rar"); 
        //sendmail.attachfile("d:\\jhjl.rar"); 
         
        System.out.println(sendmail.sendMail()); 
 
    } 

 

 

参考应用自http://chengyue2007.iteye.com/blog/787151

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