JAVA实现邮件发送,java收发邮件

　　本文实例为大家分享了爪哇岛实现简单发送邮件的具体代码，供大家参考，具体内容如下

　　添加依赖

　　！-发送邮件API -！-https://mvn repository.com/artifact/javax . mail/javax . mail-API-依赖groupIdjavax.mail/groupId贾瓦克斯。邮件-API/artifactId版本1 . 6 . 2/版本/依赖关系！-https://mvn repository.com/artifact/com . sun . mail/javax . mail-依赖groupIdcom.sun.mail/groupIdartifactIdjavax.mail/artifactId版本1 .6 .2/版本/依赖自定义异常类

　　公众的类电子邮件异常扩展异常{公共邮件异常(字符串消息){超级(消息)；}公共电子邮件异常(){ super()；}/* * * */private static final long serial版本uid=115631651651651651 l；}IMAP协议读取邮件

　　导入Java。io。bufferedinputstream导入Java。io。bufferedoutputstream导入Java。io。文件；导入Java。io。filenotfoundexception导入Java。io。文件输出流；导入Java。io。io异常；导入Java。io。inputstream导入Java。io。unsupportedencodingexception导入Java。文字。简单的日期格式；导入Java。util。日期；导入Java。util。属性；导入javax。邮件。地址；导入javax。邮件。身体部位；导入javax。邮件。旗帜；导入javax。邮件。文件夹；导入javax。邮件。消息；导入javax。邮件。消息异常；导入javax。邮件。多部分；导入javax。邮件。部分；导入javax。邮件。会话；导入javax。邮件。存储；导入javax。邮件。互联网。互联网地址；导入javax。邮件。互联网。mime消息；导入javax。邮件。互联网。mime多部分；导入javax。邮件。互联网。mime实用程序；导入com。星期日邮件。util。mailslslocketfactory公共类IMAPReceiveMail { private String user=" "；//账号私有字符串密码="";//密码私有字符串主机=" "；//smtp服务器//私有属性props=null私有文件夹folder=null//收件箱私有存储store=null//实例对象//最终字符串pop3= IMAP最终字符串IMAP= IMAP public IMAPReceiveMail(字符串用户，字符串密码){这个。密码=密码；//密码this.user=用户；//账户} /**

* @param message 邮件对象 * @param to 收件人 * @throws MessagingException * @throws IOException */// public void forwardMail(Message message,String to) throws MessagingException, IOException {// Message forward = new MimeMessage(session);// forward.setSubject(message.getSubject());// forward.setFrom(new InternetAddress(to));// forward.setRecipient(Message.RecipientType.TO, new InternetAddress(to));// forward.setSentDate(new Date());// forward.setContent(message.getContent(), message.getContentType());//// Transport smtp = session.getTransport("smtp");// smtp.connect(HOST, user, password);//连接服务器的邮箱// smtp.sendMessage(forward, forward.getAllRecipients());// smtp.close();// } /** * 接收邮件 */ public Folder resceive() throws Exception { /** * 因为现在使用的是163邮箱而163的 pop地址是 pop3.163.com 端口是 110 比如使用好未来企业邮箱就需要换成好未来邮箱的 * pop服务器地址 pop.263.net 和端口 110 */ String duankou = ""; // 端口号 String servicePath = ""; // 服务器地址 if(user==nulluser.length()==0) throw new EmailException("账户不能为空！！！！"); if(password==nullpassword.length()==0) throw new EmailException("密码不能为空！！！！"); if(user.contains("@163")) { duankou = "143"; // 端口号 servicePath = "imap.163.com"; // 服务器地址 }else if(user.contains("@qq")) { duankou = "993"; // 端口号 servicePath = "imap.qq.com"; // 服务器地址 }else { throw new EmailException("不支持该协议"); } // 准备连接服务器的会话信息 Properties props = new Properties(); props.setProperty("mail.store.protocol", imap); // 使用pop3协议 props.setProperty("mail.imap.socketFactory.fallback", "false"); props.setProperty("mail.imap.port", duankou); // 端口 props.setProperty("mail.imap.socketFactory.port", duankou); // 端口 props.setProperty("mail.transport.protocol", "smtp");// 发送邮件协议名称 props.setProperty("mail.smtp.auth", "true"); //需要经过授权，也就是有户名和密码的校验，这样才能通过验证（一定要有这一条 props.setProperty("mail.host", HOST); //关闭读取附件时分批获取 BASE64 输入流的配置 props.setProperty("mail.imap.partialfetch", "false"); props.setProperty("mail.imaps.partialfetch", "false");// props.setProperty("mail.pop3.host", servicePath); // pop3服务器 // final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory"; // Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());// props.setProperty("mail.imap.socketFactory.class", SSL_FACTORY); MailSSLSocketFactory sf = new MailSSLSocketFactory();//ssl加密 sf.setTrustAllHosts(true); props.put("mail.imap.ssl.enable", "true"); props.put("mail.imap.ssl.socketFactory", sf); // 创建Session实例对象 Session session = Session.getInstance(props); session.setDebug(false); store = session.getStore(imap); store.connect(servicePath,user,password); // 163邮箱程序登录属于第三方登录所以这里的密码是163给的授权密码而并非普通的登录密码 // 获得收件箱 folder = store.getFolder("INBOX"); /* * Folder.READ_ONLY：只读权限 Folder.READ_WRITE：可读可写（可以修改邮件的状态） */ folder.open(Folder.READ_WRITE); // 打开收件箱 // 由于POP3协议无法获知邮件的状态,所以getUnreadMessageCount得到的是收件箱的邮件总数// System.out.println("未读邮件数: " + folder.getUnreadMessageCount()); // 由于POP3协议无法获知邮件的状态,所以下面得到的结果始终都是为0// System.out.println("删除邮件数: " + folder.getDeletedMessageCount());// System.out.println("新邮件: " + folder.getNewMessageCount()); // 获得收件箱中的邮件总数// System.out.println("邮件总数: " + folder.getMessageCount()); // 得到收件箱中的所有邮件,并解析// Message[] messages = folder.getMessages();// parseMessage(messages); // 得到收件箱中的所有邮件并且删除邮件// deleteMessage(messages); // 释放资源// folder.close(true);// store.close(); return folder; } public void Colsefolder() throws MessagingException {//关闭资源 if(folder!=null) { folder.close(); } if(store!=null) { store.close(); } } /** * 解析邮件 * * @param messages 要解析的邮件列表 */ public void parseMessage(Message... messages) throws MessagingException, IOException { if (messages == null messages.length < 1) throw new MessagingException("未找到要解析的邮件!"); // 解析所有邮件 for (int i = 0, count = messages.length; i < count; i++) { MimeMessage msg = (MimeMessage) messages[i]; System.out.println("------------------解析第" + msg.getMessageNumber() + "封邮件-------------------- "); System.out.println("主题: " + getSubject(msg)); System.out.println("发件人: " + getFrom(msg)); System.out.println("收件人：" + getReceiveAddress(msg, null)); System.out.println("发送时间：" + getSentDate(msg, null)); System.out.println("是否已读：" + isSeen(msg)); System.out.println("邮件优先级：" + getPriority(msg)); System.out.println("是否需要回执：" + isReplySign(msg)); System.out.println("邮件大小：" + msg.getSize() * 1024 + "kb"); boolean isContainerAttachment = isContainAttachment(msg); System.out.println("是否包含附件：" + isContainerAttachment); if (isContainerAttachment) { saveAttachment(msg, "f:\mailTest\" + msg.getSubject() + "_" + i + "_"); // 保存附件 } StringBuffer content = new StringBuffer(30); getMailTextContent(msg, content); System.out.println("邮件正文：" + (content.length() > 100 ? content.substring(0, 100) + "..." : content)); System.out.println("------------------第" + msg.getMessageNumber() + "封邮件解析结束-------------------- "); System.out.println(); } } /** * 解析邮件 * * @param messages 要解析的邮件列表 */ public void deleteMessage(Message... messages) throws MessagingException, IOException { if (messages == null messages.length < 1) throw new MessagingException("未找到要解析的邮件!"); // 解析所有邮件 for (int i = 0, count = messages.length; i < count; i++) { /** * 邮件删除 */ Message message = messages[i]; String subject = message.getSubject(); // set the DELETE flag to true message.setFlag(Flags.Flag.DELETED, true); System.out.println("Marked DELETE for message: " + subject); } } /** * 获得邮件主题 * * @param msg 邮件内容 * @return 解码后的邮件主题 */ public String getSubject(MimeMessage msg) throws UnsupportedEncodingException, MessagingException { return MimeUtility.decodeText(msg.getSubject()); } /** * 获得邮件发件人 * * @param msg 邮件内容 * @return 姓名 <Email地址> * @throws MessagingException * @throws UnsupportedEncodingException */ public String getFrom(MimeMessage msg) throws MessagingException, UnsupportedEncodingException { String from = ""; Address[] froms = msg.getFrom(); if (froms.length < 1) throw new MessagingException("没有发件人!"); InternetAddress address = (InternetAddress) froms[0]; String person = address.getPersonal(); if (person != null) { person = MimeUtility.decodeText(person) + " "; } else { person = ""; } from = person + "<" + address.getAddress() + ">"; return from; } public String getFromAddress(MimeMessage msg) throws MessagingException, UnsupportedEncodingException { String from = ""; Address[] froms = msg.getFrom(); if (froms.length < 1) throw new MessagingException("没有发件人!"); InternetAddress address = (InternetAddress) froms[0]; from = address.getAddress(); return from; } /** * 根据收件人类型，获取邮件收件人、抄送和密送地址。如果收件人类型为空，则获得所有的收件人 * * Message.RecipientType.TO 收件人 * * * Message.RecipientType.CC 抄送 * * * Message.RecipientType.BCC 密送 * * * @param msg 邮件内容 * @param type 收件人类型 * @return 收件人1 <邮件地址1>, 收件人2 <邮件地址2>, ... * @throws MessagingException */ public String getReceiveAddress(MimeMessage msg, Message.RecipientType type) throws MessagingException { StringBuffer receiveAddress = new StringBuffer(); Address[] addresss = null; if (type == null) { addresss = msg.getAllRecipients(); } else { addresss = msg.getRecipients(type); } if (addresss == null addresss.length < 1) throw new MessagingException("没有收件人!"); for (Address address : addresss) { InternetAddress internetAddress = (InternetAddress) address; receiveAddress.append(internetAddress.toUnicodeString()).append(","); } receiveAddress.deleteCharAt(receiveAddress.length() - 1); // 删除最后一个逗号 return receiveAddress.toString(); } /** * 获得邮件发送时间 * * @param msg 邮件内容 * @return yyyy年mm月dd日星期X HH:mm * @throws MessagingException */ public String getSentDate(MimeMessage msg, String pattern) throws MessagingException { Date receivedDate = msg.getSentDate(); if (receivedDate == null) return ""; if (pattern == null "".equals(pattern)) pattern = "yyyy年MM月dd日 E HH:mm "; return new SimpleDateFormat(pattern).format(receivedDate); } /** * 判断邮件中是否包含附件 * * @param msg 邮件内容 * @return 邮件中存在附件返回true，不存在返回false * @throws MessagingException * @throws IOException */ public boolean isContainAttachment(Part part) throws MessagingException, IOException { boolean flag = false; if (part.isMimeType("multipart/*")) { MimeMultipart multipart = (MimeMultipart) part.getContent(); int partCount = multipart.getCount(); for (int i = 0; i < partCount; i++) { BodyPart bodyPart = multipart.getBodyPart(i); String disp = bodyPart.getDisposition(); if (disp != null && (disp.equalsIgnoreCase(Part.ATTACHMENT) disp.equalsIgnoreCase(Part.INLINE))) { flag = true; } else if (bodyPart.isMimeType("multipart/*")) { flag = isContainAttachment(bodyPart); } else { String contentType = bodyPart.getContentType(); if (contentType.indexOf("application") != -1) { flag = true; } if (contentType.indexOf("name") != -1) { flag = true; } } if (flag) break; } } else if (part.isMimeType("message/rfc822")) { flag = isContainAttachment((Part) part.getContent()); } return flag; } /** * 判断邮件是否已读 * * @param msg 邮件内容 * @return 如果邮件已读返回true,否则返回false * @throws MessagingException */ public boolean isSeen(MimeMessage msg) throws MessagingException { return msg.getFlags().contains(Flags.Flag.SEEN); } /** * 判断邮件是否需要阅读回执 * * @param msg 邮件内容 * @return 需要回执返回true,否则返回false * @throws MessagingException */ public boolean isReplySign(MimeMessage msg) throws MessagingException { boolean replySign = false; String[] headers = msg.getHeader("Disposition-Notification-To"); if (headers != null) replySign = true; return replySign; } /** * 获得邮件的优先级 * * @param msg 邮件内容 * @return 1(High):紧急 3:普通(Normal) 5:低(Low) * @throws MessagingException */ public String getPriority(MimeMessage msg) throws MessagingException { String priority = "普通"; String[] headers = msg.getHeader("X-Priority"); if (headers != null) { String headerPriority = headers[0]; if (headerPriority.indexOf("1") != -1 headerPriority.indexOf("High") != -1) priority = "紧急"; else if (headerPriority.indexOf("5") != -1 headerPriority.indexOf("Low") != -1) priority = "低"; else

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