邮件读取的POS3

最新推荐文章于 2024-07-30 16:56:11 发布

qq_30962007

最新推荐文章于 2024-07-30 16:56:11 发布

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本文链接：https://blog.youkuaiyun.com/qq_30962007/article/details/103678984

这个Java工具类实现了使用POP3协议从QQ和163邮箱中读取特定主题的邮件，并解析邮件内容获取Session ID、Queue ID、Message ID等信息。代码中包含了连接邮箱、筛选邮件、解析邮件正文和附件的方法。

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package com.gbicc.email.util;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Value;

import com.gbicc.email.emailgroup.domain.FailEmailBean;

import javax.mail.*;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import javax.mail.internet.MimeMultipart;

import javax.mail.internet.MimeUtility;

import javax.mail.search.AndTerm;

import javax.mail.search.SearchTerm;

import javax.mail.search.SentDateTerm;

import javax.mail.search.SubjectTerm;

import java.io.*;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;

/**

* 使用POP3协议解析邮件工具类

* @author bzs on 2018/6/28.

public class ParsingEmailUtil {

private static final Logger log = LoggerFactory.getLogger(ParsingEmailUtil.class);
public static void main(String[] args) throws Exception{
resceive("邮箱名字", "授权码","邮件主题");
/*try
{
String host = "pop.qq.com";
String username = "邮件名字";
String password = "授权码";

Properties p = new Properties();
p.setProperty("mail.pop3.host", "pop.qq.com"); // 按需要更改
p.setProperty("mail.pop3.port", "995");
// SSL安全连接参数
p.setProperty("mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
p.setProperty("mail.pop3.socketFactory.fallback", "true");
p.setProperty("mail.pop3.socketFactory.port", "995");

Session session = Session.getInstance(p);
Store store = session.getStore("pop3");
store.connect(host, username, password);
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_WRITE);
SearchTerm st=new SubjectTerm("警告：邮件投递失败");
Message[] messages = folder.search(st);
System.out.println("邮件数量: " + messages.length);

//解析邮件

List<FailEmailBean> list= parseMessage(messages);
for (FailEmailBean failEmailBean : list) {
System.out.println(failEmailBean.toString());
}
folder.close(true);

store.close();
}
catch (NoSuchProviderException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (MessagingException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}*/
}

/**

* 获取邮箱信息

* @param emailAdress 需要解析的邮箱地址

* @param password 邮箱的授权密码

* @throws Exception

public static List<FailEmailBean> resceive(String emailAdress, String password,String projectName) throws Exception {
String port = "110"; // 端口号

String servicePath = "pop.163.com"; // 服务器地址
// 准备连接服务器的会话信息

Properties props = new Properties();
if(emailAdress.contains("@163")){
props.setProperty("mail.store.protocol", "pop3"); // 使用pop3协议

props.setProperty("mail.pop3.port", port); // 端口

props.setProperty("mail.pop3.host", servicePath); // pop3服务器
}else if(emailAdress.contains("@qq")){
   props.setProperty("mail.pop3.host", "pop.qq.com"); // 按需要更改
   props.setProperty("mail.pop3.port", "995");
// SSL安全连接参数
   props.setProperty("mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
   props.setProperty("mail.pop3.socketFactory.fallback", "true");
   props.setProperty("mail.pop3.socketFactory.port", "995");
}

// 创建Session实例对象

Session session = Session.getInstance(props);

Store store = session.getStore("pop3");
System.out.println(emailAdress+"------"+password);
try {
 store.connect(emailAdress, 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
 } catch (Exception e) {
 // TODO Auto-generated catch block
 System.out.println(e.getMessage());
 return new ArrayList<FailEmailBean>();
 }

// 获得收件箱

Folder 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

log.warn("邮件总数: {}", folder.getMessageCount());

// 得到收件箱中的所有邮件,并解析

//Message[] messages = folder.getMessages();

//筛选邮件

// SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd 01:00:00");

// SearchTerm st=new AndTerm(new SubjectTerm("UpdateFromIESToCargo"),

// new SentDateTerm(6,sf.parse(sf.format(new Date()))) );//6 代表大于等于这时间之后

SearchTerm st=new SubjectTerm(projectName);

Message[] messages = folder.search(st);

//解析邮件

List<FailEmailBean> list= 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 list;

}

/**

* 解析邮件

* @param messages 要解析的邮件列表

public static List<FailEmailBean> parseMessage(Message... messages) throws MessagingException, IOException {

if (messages == null || messages.length < 1)

throw new MessagingException("未找到要解析的邮件!");

List<FailEmailBean> list=new ArrayList<>();

// 解析所有邮件

for (int i = 0, count = messages.length; i < count; i++) {

MimeMessage msg = (MimeMessage) messages[i];

log.info("------------------解析第" + msg.getMessageNumber() + "封邮件-------------------- ");

/* log.warn("主题: {}" , getSubject(msg));

log.warn("发件人: {}" , getFrom(msg));

log.warn("收件人：{}" , getReceiveAddress(msg, null));

log.warn("发送时间：{}" , getSentDate(msg, null));

log.warn("是否已读：{}" , isSeen(msg));

log.warn("邮件优先级：{}" , getPriority(msg));

log.warn("是否需要回执：{}" , isReplySign(msg));

log.warn("邮件大小：{}" , msg.getSize() * 1024 + "kb");*/

// boolean isContainerAttachment = isContainAttachment(msg);

// log.warn("是否包含附件：{}" ,isContainerAttachment);

// if (isContainerAttachment) {

// saveAttachment(msg, "d:\\log\\" + msg.getSubject() + "_" + i + "_"); //保存附件

// }

StringBuffer content = new StringBuffer(300);

//解析邮件正文

getMailTextContent(msg, content);

/* log.warn("邮件正文：{}" , content);

*/

log.info("------------------第" + msg.getMessageNumber() + "封邮件解析结束-------------------- ");
FailEmailBean bean= new FailEmailBean();
System.out.println();
String seesionId=content.substring(content.indexOf("Session-ID:"), content.indexOf("Session-ID:")+18).trim();
seesionId=seesionId.substring(12, seesionId.length());
System.out.println(seesionId);
bean.setSessionid(seesionId);
String queueId=content.substring(content.indexOf("Queue-ID:"), content.indexOf("Queue-ID:")+28).trim();
queueId=queueId.substring(10, queueId.length());
System.out.println(queueId);
bean.setQueueid(queueId);
 String messageId=content.substring(content.indexOf(" Message-ID:"), content.indexOf(" Message-ID:")+66).trim();
 messageId=messageId.substring(12, messageId.length());
 System.out.println(messageId);
 bean.setMessageid(messageId);
 String email=content.substring(content.indexOf("投递到以下收件人："), content.indexOf("（无法恢复的错误）"));
 email=email.substring(email.lastIndexOf(" ")+6, email.length()).trim();
 System.out.println(email);
 bean.setEmail(email);
 //getFrom(msg) 發件人
 String feedbackemail=getFrom(msg);
 feedbackemail=feedbackemail.subSequence(feedbackemail.lastIndexOf("<")+1, feedbackemail.lastIndexOf(">")).toString();
 System.out.println(feedbackemail);
 bean.setFeedbackemail(feedbackemail);
 // 收件人 getReceiveAddress(msg, null));
 String receiveEmail=getReceiveAddress(msg, null);
 receiveEmail=receiveEmail.subSequence(receiveEmail.lastIndexOf("<")+1, receiveEmail.lastIndexOf(">")).toString();
 System.out.println(receiveEmail);
 bean.setReceiveEmail(receiveEmail);

 list.add(bean);
}
return list;

}

/**

* 删除邮件

* @param messages 要删除邮件列表

public static 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 static 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 static 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;

}

/**

* 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 static 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 static 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 part 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 static 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 static 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 static 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 static 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

priority = "普通";

}

return priority;

}

/**

* 获得邮件文本内容

* @param part 邮件体

* @param content 存储邮件文本内容的字符串

* @throws MessagingException

* @throws IOException

public static void getMailTextContent(Part part, StringBuffer content) throws MessagingException, IOException {

//如果是文本类型的附件，通过getContent方法可以取到文本内容，但这不是我们需要的结果，所以在这里要做判断

boolean isContainTextAttach = part.getContentType().indexOf("name") > 0;

if (part.isMimeType("text/*") && !isContainTextAttach) {

content.append(part.getContent().toString());

} else if (part.isMimeType("message/rfc822")) {

getMailTextContent((Part) part.getContent(), content);

} else if (part.isMimeType("multipart/*")) {

Multipart multipart = (Multipart) part.getContent();

int partCount = multipart.getCount();

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

BodyPart bodyPart = multipart.getBodyPart(i);

getMailTextContent(bodyPart, content);

}

/**

* 保存附件

* @param part 邮件中多个组合体中的其中一个组合体

* @param destDir 附件保存目录

* @throws UnsupportedEncodingException

* @throws MessagingException

* @throws FileNotFoundException

* @throws IOException

public static void saveAttachment(Part part, String destDir) throws MessagingException, IOException {

if (part.isMimeType("multipart/*")) {

Multipart multipart = (Multipart) part.getContent(); //复杂体邮件

//复杂体邮件包含多个邮件体

int partCount = multipart.getCount();

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

//获得复杂体邮件中其中一个邮件体

BodyPart bodyPart = multipart.getBodyPart(i);

//某一个邮件体也有可能是由多个邮件体组成的复杂体

String disp = bodyPart.getDisposition();

if (disp != null && (disp.equalsIgnoreCase(Part.ATTACHMENT) || disp.equalsIgnoreCase(Part.INLINE))) {

InputStream is = bodyPart.getInputStream();

saveFile(is, destDir, decodeText(bodyPart.getFileName()));

} else if (bodyPart.isMimeType("multipart/*")) {

saveAttachment(bodyPart, destDir);

} else {

String contentType = bodyPart.getContentType();

if (contentType.indexOf("name") != -1 || contentType.indexOf("application") != -1) {

saveFile(bodyPart.getInputStream(), destDir, decodeText(bodyPart.getFileName()));

}

} else if (part.isMimeType("message/rfc822")) {

saveAttachment((Part) part.getContent(), destDir);

}

/**

* 读取输入流中的数据保存至指定目录

* @param is 输入流

* @param fileName 文件名

* @param destDir 文件存储目录

* @throws FileNotFoundException

* @throws IOException

private static void saveFile(InputStream is, String destDir, String fileName) throws FileNotFoundException, IOException {

BufferedInputStream bis = new BufferedInputStream(is);

BufferedOutputStream bos = new BufferedOutputStream(

new FileOutputStream(new File(destDir + fileName)));

int len = -1;

while ((len = bis.read()) != -1) {

bos.write(len);

bos.flush();

}

bos.close();

bis.close();

}

/**

* 文本解码

* @param encodeText 解码MimeUtility.encodeText(String text)方法编码后的文本

* @return 解码后的文本

* @throws UnsupportedEncodingException

public static String decodeText(String encodeText) throws UnsupportedEncodingException {

if (encodeText == null || "".equals(encodeText)) {

return "";

} else {

return MimeUtility.decodeText(encodeText);

}