java实现读取163邮箱，qq邮箱的邮件内容

通过使用java mail来实现读取163邮箱，qq邮箱的邮件内容。

1.代码实现：

创建springboot项目，引入依赖包

 <!--mail--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId></dependency>

实现类

import com.sun.mail.imap.IMAPFolder;
import com.sun.mail.imap.protocol.IMAPProtocol;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.util.ObjectUtils;import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
import java.io.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;public class ShowMail {public static String NORM_DATETIME_PATTERN = "yyyy-MM-dd hh:mm:ss";private MimeMessage mimeMessage;/*** 附件下载后的存放目录*/private String saveAttachPath = "";/*** 存放邮件内容的StringBuffer对象*/private StringBuffer bodyText = new StringBuffer();/*** 构造函数,初始化一个MimeMessage对象** @param mimeMessage*/public ShowMail(MimeMessage mimeMessage) {this.mimeMessage = mimeMessage;}/*** 获得发件人的地址和姓名** @return* @throws MessagingException*/public String getFrom() throws MessagingException {InternetAddress address[] = (InternetAddress[]) mimeMessage.getFrom();String from = address[0].getAddress();if (from == null) {from = "";}String personal = address[0].getPersonal();if (personal == null) {personal = "";}String fromAddr = null;if (personal != null || from != null) {fromAddr = personal + "<" + from + ">";}return fromAddr;}/*** 获得邮件的收件人，抄送，和密送的地址和姓名，根据所传递的参数的不同** @param type "to"----收件人　"cc"---抄送人地址　"bcc"---密送人地址* @return* @throws MessagingException* @throws UnsupportedEncodingException*/public String getMailAddress(String type) throws MessagingException, UnsupportedEncodingException {if (ObjectUtils.isEmpty(type)) {return "";}String addType = type.toUpperCase();if (!addType.equals("TO") && !addType.equals("CC") && !addType.equals("BCC")) {return "";}InternetAddress[] address;if (addType.equals("TO")) {address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.TO);} else if (addType.equals("CC")) {address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.CC);} else {address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.BCC);}if (ObjectUtils.isEmpty(address)) {return "";}StringBuilder mailAddr = new StringBuilder();String emailAddr;String personal;for (int i = 0; i < address.length; i++) {emailAddr = address[i].getAddress();if (emailAddr == null) {emailAddr = "";} else {emailAddr = MimeUtility.decodeText(emailAddr);}personal = address[i].getPersonal();if (personal == null) {personal = "";} else {personal = MimeUtility.decodeText(personal);}mailAddr.append(",").append(personal).append("<").append(emailAddr).append(">");}return mailAddr.toString().substring(1);}/*** 获得邮件主题** @return* @throws MessagingException* @throws UnsupportedEncodingException*/public String getSubject() throws MessagingException, UnsupportedEncodingException {String subject = MimeUtility.decodeText(mimeMessage.getSubject());if (subject == null) {subject = "";}return subject;}/*** 获得邮件发送日期** @return* @throws MessagingException*/public String getSentDate() throws MessagingException {Date sentDate = mimeMessage.getSentDate();SimpleDateFormat format = new SimpleDateFormat(NORM_DATETIME_PATTERN);return format.format(sentDate);}/*** 获得邮件正文内容** @return*/public String getBodyText() {return bodyText.toString();}/*** 解析邮件，把得到的邮件内容保存到一个StringBuffer对象中，解析邮件* 主要是根据MimeType类型的不同执行不同的操作，一步一步的解析* @param part* @throws MessagingException* @throws IOException*/public void getMailContent(Part part) throws MessagingException, IOException {String contentType = part.getContentType();int nameIndex = contentType.indexOf("name");boolean conName = false;if (nameIndex != -1) {conName = true;}if (part.isMimeType("text/plain") && conName == false) {bodyText.append((String) part.getContent());} else if (part.isMimeType("text/html") && conName == false) {bodyText.append((String) part.getContent());} else if (part.isMimeType("multipart/*")) {Multipart multipart = (Multipart) part.getContent();int counts = multipart.getCount();for (int i = 0; i < counts; i++) {this.getMailContent(multipart.getBodyPart(i));}} else if (part.isMimeType("message/rfc822")) {this.getMailContent((Part) part.getContent());}}/*** 判断此邮件是否需要回执，如果需要回执返回"true",否则返回"false"** @return* @throws MessagingException*/public boolean getReplySign() throws MessagingException {boolean replySign = false;String needReply[] = mimeMessage.getHeader("Disposition-Notification-To");if (needReply != null) {replySign = true;}return replySign;}/*** 判断此邮件是否已读，如果未读返回false,反之返回true** @return* @throws MessagingException*/public boolean isNew() throws MessagingException {boolean isNew = false;Flags flags = mimeMessage.getFlags();Flags.Flag[] flag = flags.getSystemFlags();for (int i = 0; i < flag.length; i++) {if (flag[i] == Flags.Flag.SEEN) {isNew = true;}}return isNew;}/*** 判断此邮件是否包含附件** @param part* @return* @throws MessagingException* @throws IOException*/public boolean isContainAttach(Part part) throws MessagingException, IOException {boolean attachFlag = false;if (part.isMimeType("multipart/*")) {Multipart mp = (Multipart) part.getContent();BodyPart mPart;String conType;for (int i = 0; i < mp.getCount(); i++) {mPart = mp.getBodyPart(i);String disposition = mPart.getDisposition();if (Part.ATTACHMENT.equals(disposition) || Part.INLINE.equals(disposition)) {attachFlag = true;} else if (mPart.isMimeType("multipart/*")) {attachFlag = this.isContainAttach(mPart);} else {conType = mPart.getContentType();if (conType.toLowerCase().indexOf("application") != -1 || conType.toLowerCase().indexOf("name") != -1){attachFlag = true;}}}} else if (part.isMimeType("message/rfc822")) {attachFlag = isContainAttach((Part) part.getContent());}return attachFlag;}/*** 保存附件** @param part* @throws MessagingException* @throws IOException*/public void saveAttachMent(Part part) throws MessagingException, IOException {String fileName;if (part.isMimeType("multipart/*")) {Multipart mp = (Multipart) part.getContent();BodyPart mPart;for (int i = 0; i < mp.getCount(); i++) {mPart = mp.getBodyPart(i);String disposition = mPart.getDisposition();if (Part.ATTACHMENT.equals(disposition) || Part.INLINE.equals(disposition)) {fileName = mPart.getFileName();if (null != fileName && fileName.toLowerCase().indexOf("gb2312") != -1) {fileName = MimeUtility.decodeText(fileName);}this.saveFile(fileName, mPart.getInputStream());} else if (mPart.isMimeType("multipart/*")) {this.saveAttachMent(mPart);} else {fileName = mPart.getFileName();if ((fileName != null) && (fileName.toLowerCase().indexOf("GB2312") != -1)) {fileName = MimeUtility.decodeText(fileName);this.saveFile(fileName, mPart.getInputStream());}}}} else if (part.isMimeType("message/rfc822")) {this.saveAttachMent((Part) part.getContent());}}/*** 设置附件存放路径** @param attachPath*/public void setAttachPath(String attachPath) {this.saveAttachPath = attachPath;}/*** 获得附件存放路径** @return*/public String getAttachPath() {return saveAttachPath;}/*** 真正的保存附件到指定目录里** @param fileName* @param in* @throws IOException*/private void saveFile(String fileName, InputStream in) throws IOException {String osName = System.getProperty("os.name");String storeDir = this.getAttachPath();if (null == osName) {osName = "";}if (osName.toLowerCase().indexOf("win") != -1) {if (ObjectUtils.isEmpty(storeDir))storeDir = "C:\\tmp";} else {storeDir = "/tmp";}
//        fileName=fileName.replace("=?", "");
//        fileName=fileName.replace("?=", "");
//        fileName = fileName.substring(fileName.length() - 6, fileName.length());FileOutputStream fos = new FileOutputStream(new File(storeDir + File.separator + fileName));IOUtils.copy(in, fos);IOUtils.closeQuietly(fos);IOUtils.closeQuietly(in);}/*** 获取163邮箱信息** @param host* @param username* @param password* @param protocol* @return* @throws MessagingException*/public static Message[] getWEMessage(String host, String username, String password, String protocol) throws MessagingException {//创建属性对象Properties props = System.getProperties();props.setProperty("mail.store.protocol", protocol);//创建会话Session session = Session.getDefaultInstance(props, null);//存储对象Store store = session.getStore(protocol);//连接store.connect(host, username, password);//创建目录对象Folder folder = store.getFolder("INBOX");if (folder instanceof IMAPFolder) {IMAPFolder imapFolder = (IMAPFolder)folder;//javamail中使用id命令有校验checkOpened, 所以要去掉id方法中的checkOpened();imapFolder.doCommand(new IMAPFolder.ProtocolCommand() {public Object doCommand(IMAPProtocol p) throws com.sun.mail.iap.ProtocolException {p.id("FUTONG");return null;}});}if(folder != null) {folder.open(Folder.READ_WRITE);}return folder.getMessages();}/*** 获取qq邮箱信息** @param host* @param username* @param password* @param protocol* @return* @throws MessagingException*/public static Message[] getQQMessage(String host, String username, String password, String protocol) throws MessagingException {//创建属性对象Properties props = new Properties();props.put("mail.store.protocol", protocol);//创建会话Session session = Session.getDefaultInstance(props, null);//存储对象Store store = session.getStore(protocol);//连接store.connect(host,username,password);//创建目录对象Folder folder = store.getFolder("Inbox");if(folder != null) {folder.open(Folder.READ_WRITE);}return folder.getMessages();}/*** 过滤邮箱信息** @param messages* @param fromMail 只读取该邮箱发来的邮件，如果为空则不过滤* @param startDate 只读取该日期以后的邮件，如果为空则不过滤* @return* @throws MessagingException*/public static List<Message> filterMessage(Message[] messages, String fromMail, String startDate) throws MessagingException, ParseException {List<Message> messageList = new ArrayList<>();if (ObjectUtils.isEmpty(messages)) {return messageList;}boolean isEnptyFromMail = ObjectUtils.isEmpty(fromMail);boolean isEnptyStartDate = ObjectUtils.isEmpty(startDate);if (isEnptyFromMail && isEnptyStartDate) {return Arrays.asList(messages);}String from;for (Message message: messages) {from = null;if(message.getFrom() != null) {from = (message.getFrom()[0]).toString();}if (isEnptyFromMail) {if (message.getSentDate() != null && new SimpleDateFormat(NORM_DATETIME_PATTERN).parse(startDate).getTime() > message.getSentDate().getTime()) {continue;}} else if (null != from && from.contains(fromMail)) {if (!isEnptyStartDate && new SimpleDateFormat(NORM_DATETIME_PATTERN).parse(startDate).getTime() > message.getSentDate().getTime()) {continue;}} else {continue;}messageList.add(message);}return messageList;}/*** 打印邮件** @param messageList* @throws IOException* @throws MessagingException*/public static void printMailMessage(List<Message> messageList) throws IOException, MessagingException {System.out.println("邮件数量:" + messageList.size());ShowMail re;Message message;for (int i = 0, leng = messageList.size(); i < leng; i++) {message = messageList.get(i);re = new ShowMail((MimeMessage) message);System.out.println("邮件【" + i + "】主题:" + re.getSubject());System.out.println("邮件【" + i + "】发送时间:" + re.getSentDate());System.out.println("邮件【" + i + "】是否需要回复:" + re.getReplySign());System.out.println("邮件【" + i + "】是否已读:" + re.isNew());System.out.println("邮件【" + i + "】是否包含附件:" + re.isContainAttach( message));System.out.println("邮件【" + i + "】发送人地址:" + re.getFrom());System.out.println("邮件【" + i + "】收信人地址:" + re.getMailAddress("to"));System.out.println("邮件【" + i + "】抄送:" + re.getMailAddress("cc"));System.out.println("邮件【" + i + "】暗抄:" + re.getMailAddress("bcc"));System.out.println("邮件【" + i + "】发送时间:" + re.getSentDate());System.out.println("邮件【" + i + "】邮件ID:" + ((MimeMessage) message).getMessageID());re.getMailContent(message);System.out.println("邮件【" + i + "】正文内容:\r\n" + re.getBodyText());re.setAttachPath("D:\\Download\\mailFile\\");re.saveAttachMent(message);}}public static void main(String[] args) throws MessagingException, IOException, ParseException {//163登录信息//邮件服务器String host = "mail.xx.com";//邮箱账号String username = "xx";//授权码String password = "yy";//协议String protocol = "imaps";//只读取该邮箱发来的邮件String fromMail = null;//只读取该日期以后的邮件String startDate = null;List<Message> messageList = filterMessage(getWEMessage(host, username, password, protocol), fromMail, startDate);printMailMessage(messageList);//qq登录信息String host2 = "imap.qq.com";String username2 = "xx";String password2 = "yy";// String protocol2 = "imaps";String protocol2 = "pop3";String fromMail2 = null;String startDate2 = null;List<Message> messageList2 = filterMessage(getQQMessage(host2, username2, password2, protocol2), fromMail2, startDate2);printMailMessage(messageList2);}}

2.配置授权码

163邮箱：

qq邮箱：

3.实现效果：

运行main方法，查看控制台：

邮件数量:xx
邮件【0】主题:欢迎您使用xx邮箱！
邮件【0】发送时间:xx
邮件【0】是否需要回复:false
邮件【0】是否已读:true
邮件【0】是否包含附件:false
邮件【0】发送人地址:xx
邮件【0】收信人地址:xx
邮件【0】抄送:
邮件【0】暗抄:
邮件【0】发送时间:xx
邮件【0】邮件ID:xx
邮件【0】正文内容:
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta http-equiv="X-UA-Compatible" content="ie=edge"><title>欢迎使用</title><style>body, div, p, img {padding: 0;margin: 0;font-family: 'Microsoft Yahei', "PingFang SC", "Hiragino Sans GB", "wenquanyi micro hei", Arial, Helvetica, "STHeiti", sans-serif;}.contain {width: 700px;margin: 0 auto;font-size: 0;}.wrap {position: relative;}.wrap .welcome {position: absolute;width: 290px;left: 75px;top: 100px;font-size: 18px;color: #fff;line-height: 32px;font-weight: 500;}.wrap .welcome p.indentation {font-size: 16px;font-weight: normal;}.wrap a {position: absolute;display: block;width: 104px;height: 39px;}.wrap a.mobile{left: 501px;top: 434px;}.wrap a.pc{left: 501px;top: 485px;}</style>
</head>
<body><div class="contain"><div class="wrap"><div class="welcome"><p class="indentation-title">尊敬的xx：</p><p class="indentation">您好，您的邮箱已开通。</p></div></div></div>
</body>
</html>

java实现读取163邮箱，qq邮箱的邮件内容相关推荐

Java使用163和QQ邮箱发邮件
"细雨梦回鸡塞远,小楼吹彻玉笙寒" 序现在做的项目有做到流程审批,到下一节点时,会给节点的负责人发送邮件通知.流程都是手写的代码,没有用到流程引擎. 正文其实通过QQ邮箱或者1 ...
Java基于JavaMail实现向QQ邮箱发送邮件遇到的问题
最近使用Java基于JavaMail实现向QQ邮箱发送邮件老是发送失败,在网上搜了下,终于找到原因,记录下. 参考:http://www.jb51.net/article/78405.htm 网上还有 ...
用nodejs向163邮箱, gmail邮箱, qq邮箱发邮件, nodemailer使用详解
准备工作准备一个163的邮箱, 并获取授权码在本地机器安装nodejs "注释详尽"的源码 'use strict'; const nodemailer = require(' ...
基于java mail实现简单的QQ邮箱发送邮件
刚学习到java邮件相关的知识,先写下这篇博客,方便以后翻阅学习. -----------------------------第一步开启SMTP服务在 QQ 邮箱里的设置->账户里开启 S ...
linux 发送邮件到163或者QQ邮箱
linux 发送邮件到163或者QQ邮箱我想,在开始发送邮件前有些概念需要理解, ...
Spring Boot 整合163或者qq邮箱发送验证码
前记最近做的项目中注册功能要用到验证码,本来想用阿里云的短信服务,但是有点小贵,就另辟捷径,选择了用邮箱来发送验证码.记录一下整合过程,也希望能帮助一些有需要的人. 正文 1.Spring Boot ...
163、QQ邮箱收不到Github的邮件解决方法
163.QQ邮箱收不到Github的邮件解决方法 20230505171221||300
java mail张_javaMail操作QQ邮箱发送邮箱 Demo
最近用到想给项目中加一个功能,就是当项目中某些模块发生异常,在捕获异常后不仅仅写日志抛异常等!还要追加一个发送邮件给该模块的负责人,方便运维定位问题: maven管理的配置: javax.mail m ...
Python办公自动化之收发邮件--163和qq邮箱
利用Python发送接收邮件 1.邮件相关概念 POP3:Post Office Protocol 3的简称,即邮局协议的第3个版本,它规定怎样将个人计算机连接到Internet的邮件服务器和下载电子 ...
利用SMTP协议实现邮件的发送（以163和qq邮箱为例）
1.实验的准备即环境 1.windows系统 2.telnet 客户端 win10除了需要开启客户端之外还不够,还需要自己下载 telnet server并安装,下载官网:GoodTech Syste ...

java实现读取163邮箱，qq邮箱的邮件内容

java实现读取163邮箱，qq邮箱的邮件内容相关推荐

最新文章

热门文章