1、 private boolean isDebug = true; * 值为“true”则在发送邮件link Mail#send() * 过程中会读取服务器端返回的消息, * 并在邮件发送完毕后将这些消息返回给用户。 private boolean isAllowReadSocketInfo = true; * 邮件服务器地址 private String host; * 发件人邮箱地址 private String from; * 收件人邮箱地址 private List to; * 抄送地址 cc; * 暗送地址 bcc; * 邮件主题 private String subject; * 用
2、户名 private String user; * 密码 private String password; * MIME邮件类型 private String contentType; * 用来绑定多个邮件单元link #partSet * 的分隔标识,我们可以将邮件的正文及每一个附件都看作是一个邮件单元 * 。 private String boundary; * 邮件单元分隔标识符,该属性将用来在邮件中作为分割各个邮件单元的标识 private String boundaryNextPart; * 传输邮件所采用的编码 private String contentTransferEncod
3、ing; * 设置邮件正文所用的字符集 private String charset; * 内容描述 private String contentDisposition; * 邮件正文 private String content; * 发送邮件日期的显示格式 private String simpleDatePattern; * 附件的默认MIME类型 private String defaultAttachmentContentType; * 邮件单元的集合,用来存放正文单元和所有的附件单元。MailPart partSet; * 不同类型文件对应的link MIME 类型映射。在添加附件
4、 * link #addAttachment(String) * 时,程序会在这个映射中查找对应文件的 link MIME * 类型,如果没有, 则使用 * link #defaultAttachmentContentType * 所定义的类型。 private static Map contentTypeMap; static / MIME Media Types contentTypeMap = new HashMap(); contentTypeMap.put(xls, application/vnd.ms-excel);xlsxxlsmxlsbdocapplication/msword
5、dotdocxdocmdotm * 该类用来实例化一个正文单元或附件单元对象,他继承了 * link Mail * ,在这里制作这个子类主要是为了区别邮件单元对象和邮件服务对象 * ,使程序易读一些。 这些邮件单元全部会放到partSet * 中,在发送邮件 link #send()时, 程序会调用 * link #getAllParts() * 方法将所有的单元合并成一个符合MIME格式的字符串。 private class MailPart extends Mail public MailPart() * 默认构造函数 public Mail() defaultAttachmentCont
6、entType = application/octet-stream simpleDatePattern = yyyy-MM-dd HH:mm:ss boundary = -=_NextPart_zlz_3907_ + System.currentTimeMillis(); boundaryNextPart = - + boundary; contentTransferEncoding = base64 contentType = multipart/alternative charset = Charset.defaultCharset().name(); partSet = new Arr
7、ayList to = new ArrayList cc = new ArrayList bcc = new ArrayList * 根据指定的完整文件名在 * link #contentTypeMap * 中查找其相应的MIME类型, 如果没找到,则返回 * 所指定的默认类型。 * param * 文件名 * return 返回文件对应的MIME类型。 private String getPartContentType(String ) String ret = null; if (null != ) int flag = (. if (0 = flag & flag = 0; i-) Ma
8、il attachment = partSet.get(i); String attachmentContent = attachment.getContent();= attachmentContent & 0 attachmentContent.length() sbd.append(getBoundaryNextPart().append(LINE_END); sbd.append(Content-Type: sbd.append(attachment.getContentType(); sbd.append(LINE_END);Content-Transfer-Encoding: sb
9、d.append(attachment.getContentTransferEncoding(); if (i != partCount - 1) Content-Disposition: sbd.append(attachment.getContentDisposition(); sbd.append(attachment.getContent(); / sbd.append(boundaryNextPart). / append(LINE_END); partSet.clear(); return sbd.toString(); * 添加邮件正文单元 private void addCon
10、tent() = content) MailPart part = new MailPart(); part.setContent(toBase64(content); part.setContentType(text/plain;charset= + charset + partSet.add(part); private String listToMailString(List mailAddressList) StringBuilder sbd = new StringBuilder();= mailAddressList) int listSize = mailAddressList.
11、size(); for (int i = 0; i listSize; i+) if (0 != i) getrecipient() List list = new ArrayList 0) = new ); addAttachment(), new (file), charset); catch ( e) System.out.println(错误: + e.getMessage(); System.exit(1); * param attachmentStream * 文件流 public void addAttachment(String , InputStream attachment
12、Stream, String charset) byte bs = null;= attachmentStream) int buffSize = 1024; byte buff = new bytebuffSize; byte temp; bs = new byte0; int readTotal = 0; while (-1 != (readTotal = attachmentStream.read(buff) temp = new bytebs.length; System.arraycopy(bs, 0, temp, 0, bs.length); bs = new bytetemp.l
13、ength + readTotal; System.arraycopy(temp, 0, bs, 0, temp.length); System.arraycopy(buff, 0, bs, temp.length, readTotal);= bs) MailPart attachmentPart = new MailPart(); charset = null != charset ? charset : Charset.defaultCharset() .name(); String contentType = getPartContentType() + name=?B? + toBas
14、e64()= attachmentPart.setCharset(charset); attachmentPart.setContentType(contentType); attachmentPart.setContentDisposition(attachment; + toBase64() + attachmentPart.setContent(toBase64(bs); partSet.add(attachmentPart); catch (Exception e) finally attachmentStream.close(); attachmentStream = null; c
15、atch (IOException e) Runtime.getRuntime().gc(); Runtime.getRuntime().runFinalization(); * 发送邮件 * return 邮件服务器反回的信息 public String send() / 对象申明 / 当邮件发送完毕后,以下三个对象(Socket、 / PrintWriter, / BufferedReader)需要关闭。 Socket socket = null; PrintWriter pw = null; BufferedReader br = null; socket = new Socket(ho
16、st, 25); pw = new PrintWriter(socket.getOutputStream(); br = new BufferedReader(new InputStreamReader(socket .getInputStream(); StringBuilder infoBuilder = new StringBuilder(nServer info: n-n / 与服务器建立连接 pw.write(HELO .concat(host).concat(LINE_END); / 连接到邮件服务 if (!readResponse(pw, br, infoBuilder, 220) return infoBuilder.toString();AUTH LOGIN.concat(LINE_END); / 登录250 pw.write(toBase64(user).concat(LINE_END); / 输入用户名334 pw.write(toBase64(password).c
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