使用JAVAMAIL发邮件的方法
首先引入j2ee的包路径到ClassPath,已经安装Jbuilder的可以在它的安装路径lib目录下找
到mail.jar,activation.jar,将这两个包加入系统的环境变量,那么即使不用JBuilder开发的话也可以 使用了. 程序: import java.io.*; import java.util.*; import javax.mail.*; import javax.mail.internet.*;/**
* <p>Title: 简易MailBean</p> * <p>Description: 提供简便的Mail发送功能（/p> * <p>Copyright: Copyright (c) 2003</p> * @version 1.0 */class ExtendString {
public ExtendString() { } /** 去掉字符串两端的空白字符,并将字符串转化为中国的标准字符gb2312的字符串. */ public String CS(String str) { //去掉字符串2端的空白字符 try { if (str == null) return ""; str = str.trim(); if (str == null) return ""; str = new String(str.getBytes("8859_1"), "GBK"); } catch (Exception e) { System.out.println(e); } return str; }}
public class SendMail
{ private String errMsg = ""; private ExtendString ExStr = new ExtendString();private String sender = "";//发件人地址
private String smtpHost = "";//邮件发送服务器（smtp） private String user = ""; //登录用户名 private String password = "";//登录密码private String subject = "";//mail主题
public SendMail()
{ this.setPropertiesAttri(); }private void setPropertiesAttri()
{ try { InputStream is = getClass().getResourceAsStream("MailServer.properties"); Properties prop = new Properties(); prop.load(is);this.setSmtpHost(prop.get("SmtpHost").toString());
this.setUser(prop.get("User").toString()); this.setPassword(prop.get("Password").toString()); this.setSender(prop.get("Sender").toString()); this.setSubject(ExStr.CS(prop.get("Subject").toString())); } catch(Exception ex) { System.err.println("ex1 in sendmail.java:"+ex.toString()); } } /** 设置发件人地址 */public void setSender(String sender)
{ this.sender = sender; }public String getSender()
{ return sender; }/** 设置邮件发送服务器（smtp） */
public void setSmtpHost(String smtpHost) {this.smtpHost = smtpHost;} public String getSmtpHost() {return smtpHost;}/** 设置登录用户名 */
public void setUser(String user) { this.user = user; } public String getUser() { return user; }/** 设置登录密码 */
public void setPassword(String password) { this.password = password; } public String getPassword() { return password; }/** 设置mail主题 */
public void setSubject(String subject) { this.subject = subject; } public String getSubject() { return subject; }/**
* 使用smtp发送邮件 主程序 * @throws MessagingException mail发送失败 */ public void smtp(String receiver,String content) throws MessagingException { if (smtpHost == null) throw new MessagingException("smtpHost not found"); if (user == null) throw new MessagingException("user not found"); if (password == null) throw new MessagingException("password not found");Properties properties = new Properties();
properties.put("mail.smtp.host", smtpHost);//设置smtp主机 properties.put("mail.smtp.auth", "true");//使用smtp身份验证Session session = Session.getDefaultInstance(properties,
new Authenticator(){ public PasswordAuthentication getPasswordAuthentication(){ return new PasswordAuthentication(user, password); } });//获得邮件会话对象
MimeMessage mimeMsg = new MimeMessage(session);//创建MIME邮件对象 if (sender != null)//设置发件人地址 { mimeMsg.setFrom(new InternetAddress(sender)); } if (receiver != null)//设置收件人地址 { mimeMsg.setRecipients(Message.RecipientType.TO, parse(receiver)); } if (subject != null)//设置邮件主题 { mimeMsg.setSubject(subject, "GBK"); } MimeBodyPart part = new MimeBodyPart();//mail内容部分 part.setText(content == null ? "" : content, "GBK");//设置邮件格式为html cqc
part.setContent(content.toString(),"text/html;charset=GBK"); Multipart multipart = new MimeMultipart(); multipart.addBodyPart(part);//在 Multipart 中增加mail内容部分 mimeMsg.setContent(multipart);//增加 Multipart 到信息体 mimeMsg.setSentDate(new Date());//设置发送日期 Transport.send(mimeMsg);//发送邮件 }/** 解析地址集合字符串 */
private InternetAddress[] parse(String addressSet) throws AddressException { ArrayList list = new ArrayList(); StringTokenizer tokens = new StringTokenizer(addressSet, ";"); while (tokens.hasMoreTokens()) { list.add(new InternetAddress(tokens.nextToken().trim())); } InternetAddress[] addressArray = new InternetAddress[list.size()]; list.toArray(addressArray); return addressArray; }/**
* 供外部调用的接口 */ public boolean sendMails(String mail,String content) { int mailLen = 0 ; int contentLen= 0; if (mail == null||content==null) { return false; }try
{ this.smtp(mail,content); } catch(Exception ex) { System.err.println("ex2 in sendmail.java:"+ex.toString()); }return true;
}public static void main (String[] args)
{ SendMail mail = new SendMail(); String email = "csdn@csdn.net;tom@163.com"; String content = "账号:123 密码:123 <br/>感谢您注册!<br/><a href='http://www.xxxx.com.cn' target='_blank'>www.xxxx.com.cn</a><br/>此致<br/>xxxx <br/>即日"; try { mail.sendMails(email,content); } catch (Exception ex) { System.err.println("ex33:"+ex.toString()); } }}
编译通过后,在class文件的目录下建立一个文本文件MailServer.properties,
格式: SmtpHost=smtp.163.com User=user Password=pwd Sender=csdn@csdn.com Subject=Hello 运行程序即可实现邮件发送!