用java发送邮件

//处理要发送的html文件，主要是针对html文件中的图片 

            private String getContent(String searchString, String mailContent) { 

                try { 

                    Parser parser = Parser.createParser(new String(mailContent.getBytes(), ISO8859_1)); 

                    Node[] images = parser.extractAllNodesThatAre(ImageTag.class); 

                    for(int i=0;i<images.length;i++) { 

                        ImageTag imgTag = (ImageTag) images[i]; 

                        if(!imgTag.getImageURL().toLowerCase().startsWith("http://")) 

                            arrayList1.add(imgTag.getImageURL()); 

                    } 

                } catch (UnsupportedEncodingException e1) { 

                } catch (ParserException e) {} 

                String afterReplaceStr = mailContent; 

                //在html文件中用"cid:"+Content-ID来替换原来的图片链接 

                for (int m = 0; m < arrayList1.size(); m++) { 

                    arrayList2.add(createRandomStr()); 

                    String addString = "cid:" + (String) arrayList2.get(m); 

                    afterReplaceStr = mailContent.replaceAll( 

                            (String) arrayList1.get(m), addString); 

                } 

                return afterReplaceStr; 

            } 

            //产生一个随机字符串，为了给图片设定Content-ID值 

            private String createRandomStr() { 

                char[] randomChar = new char[8]; 

                for (int i = 0; i < 8; i++) { 

                    randomChar[i] = (char) (Math.random() * 26 + 'a'); 

                } 

                String replaceStr = new String(randomChar); 

                return replaceStr; 

            } 

            private final static String ISO8859_1 = "8859_1"; 

        }; 

    } 

    /** 

     * 用于实现邮件发送用户验证 

     * @see javax.mail.Authenticator#getPasswordAuthentication 

     */ 

    protected PasswordAuthentication getPasswordAuthentication() { 

        return new PasswordAuthentication(username, userpasswd); 

    } 

    /** 

     * 设置邮件标题 

     * @param mailSubject 

     * @throws MessagingException 

     */ 

    public void setSubject(String mailSubject) throws MessagingException { 

        this.mailSubject = mailSubject; 

        mailMessage.setSubject(mailSubject); 

    } 

    /** 

     * 所有子类都需要实现的抽象方法，为了支持不同的邮件类型 

     * @param mailContent 

     * @throws MessagingException 

     */ 

    protected abstract void setMailContent(String mailContent) throws MessagingException; 

    /** 

     * 设置邮件发送日期 

     * @param sendDate 

     * @throws MessagingException 

     */ 

    public void setSendDate(Date sendDate) throws MessagingException { 

        this.mailSendDate = sendDate; 

        mailMessage.setSentDate(sendDate); 

    } 

    /** 

     * 设置邮件发送附件 

     * @param attachmentName 

     * @throws MessagingException 

     */ 

    public void setAttachments(String attachmentName) throws MessagingException { 

        messageBodyPart = new MimeBodyPart(); 

        DataSource source = new FileDataSource(attachmentName); 

        messageBodyPart.setDataHandler(new DataHandler(source)); 

        int index = attachmentName.lastIndexOf(File.separator); 

        String attachmentRealName = attachmentName.substring(index + 1); 

        messageBodyPart.setFileName(attachmentRealName); 

        multipart.addBodyPart(messageBodyPart); 

    } 

    /** 

     * 设置发件人地址 

     * @param mailFrom 

     * @throws MessagingException 

     */ 

    public void setMailFrom(String mailFrom) throws MessagingException { 

        mailFromAddress = new InternetAddress(mailFrom); 

        mailMessage.setFrom(mailFromAddress); 

    } 

    /** 

     * 设置收件人地址，收件人类型为to,cc,bcc(大小写不限) 

     * @param mailTo   邮件接收者地址 

     * @param mailType 值为to,cc,bcc 

     * @author Liudong 

     */ 

    public void setMailTo(String[] mailTo, String mailType) throws Exception { 

        for (int i = 0; i < mailTo.length; i++) { 

            mailToAddress = new InternetAddress(mailTo[i]); 

            if (mailType.equalsIgnoreCase("to")) { 

                mailMessage.addRecipient(Message.RecipientType.TO,mailToAddress); 

            } else if (mailType.equalsIgnoreCase("cc")) { 

                mailMessage.addRecipient(Message.RecipientType.CC,mailToAddress); 

            } else if (mailType.equalsIgnoreCase("bcc")) { 

                mailMessage.addRecipient(Message.RecipientType.BCC,mailToAddress); 

            } else { 

                throw new Exception("Unknown mailType: " + mailType + "!"); 

            } 

        } 

    } 

    /** 

     * 开始发送邮件 

     * @throws MessagingException 

     * @throws SendFailedException 

     */ 

    public void sendMail() throws MessagingException, SendFailedException { 

        if (mailToAddress == null) 

            throw new MessagingException("请你必须你填写收件人地址！"); 

        mailMessage.setContent(multipart); 

        Transport.send(mailMessage); 

    } 

    /** 

     * 邮件发送测试 

     * @param args 

     */ 

    public static void main(String args[]) { 

        String mailHost = "smtp.163.com"; //发送邮件服务器地址 

        String mailUser = "hELLOwORD";   //发送邮件服务器的用户帐号 

        String mailPassword = "******";   //发送邮件服务器的用户密码 

        String[] toAddress = {"[email protected]"}; 

        //使用超文本格式发送邮件 

        MailSender sendmail = MailSender.getHtmlMailSender(mailHost, mailUser,mailPassword); 

        //使用纯文本格式发送邮件 

        //MailSender sendmail = MailSender.getTextMailSender(mailHost, mailUser,mailPassword); 

        try { 

            sendmail.setSubject("要发送的标题？"); 

            sendmail.setSendDate(new Date()); 

            String content = "<H1>hELLOwORD's Test</H1><img src=\"http://www.javayou.com/images/logo.gif\">"; 

            //请注意如果是本地图片比如使用斜杠作为目录分隔符,如下所示,不支持中文？？？！！！ 

            content+="<img src=\"C:/Documents and Settings/Administrator/My Documents/My Pictures/aaa.jpg\"/>"; 

            sendmail.setMailContent(content); // 

            sendmail.setAttachments("E:\\ConList.exe");//文章附件 

            sendmail.setMailFrom("[email protected]");//显示谁发送的 

            sendmail.setMailTo(toAddress, "to");//cc抄送，bcc 暗送 

            //sendmail.setMailTo(toAddress, "cc");//设置抄送给... 

            //开始发送邮件 

            System.out.println("正在发送邮件，请稍候......."); 

            sendmail.sendMail(); 

            System.out.println("恭喜你，邮件已经成功发送!"); 

        } catch (Exception ex) { 

            ex.printStackTrace(); 

        } 

    } 

}