- 前言
- 资源下载
- 基础设置
- 开启服务
- 设置收取方式
- 源码
- 邮件内容解析
前言
最近为了抓取QQ邮箱中部分邮件中的数据，网上找的资料基本都是基于163邮箱的代码，结合部分代码整理出获取QQ邮箱邮件的方式，记录并共享一下。
资源下载
mail.jar(用于连接，获取邮件)
jsoup.jar(用于解析html)
基础设置
开启服务
需要开启QQ邮箱的POP3/IMAP服务
- 打开QQ邮箱，并点开设置–>账户
- 开启POP3/IMAP服务
- 生成授权码，第一次开启会引导生成授权码
获取QQ邮箱的邮件并不是通过QQ邮箱的密码去做身份认证，而是通过生成的16位的授权码做身份认证 - 发送授权短信
用自己绑定的手机发送“配置邮件客户端”到1069 0700 69
- 获取授权码
发送短信成功之后，点击“我已发送”，会为你生成一串16位的授权码
设置收取方式
在邮件–>设置–>账户–>收取选项中可以设置允许获取的邮件的限定，默认是最近30天以内邮件，如果需要获取所有，就需要设置为全部，这个坑当时找了好久，以为是在代码里面存在某个设置，后来发现是这里约束了
源码
以下源码直接复制粘贴即可使用，添加mail.jar包，然后在MailTest测试类的main()方法中的将QQ邮箱和授权码更换成以上获取的授权码，右键run测试入口MailTest类，即可正常使用了。
- MailImfo类，解析邮件信息对象
package email;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.mail.BodyPart;
import javax.mail.Flags;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
/**
* 邮件信息对象
* @author lupf
*
*/
public class MailImfo
{
private MimeMessage mimeMessage = null;
private String saveAttachPath = ""; // 附件下载后的存放目录
private StringBuffer bodyText = new StringBuffer(); // 存放邮件内容的StringBuffer对象
private String dateFormat = "yy-MM-dd HH:mm"; // 默认的日前显示格式
/**
* 构造函数,初始化一个MimeMessage对象
*/
public MailImfo()
{
}
public MailImfo(MimeMessage mimeMessage)
{
this.mimeMessage = mimeMessage;
System.out.println("创建一个ReceiveEmail对象....");
}
public void setMimeMessage(MimeMessage mimeMessage)
{
this.mimeMessage = mimeMessage;
System.out.println("设置一个MimeMessage对象...");
}
/**
* * 获得发件人的地址和姓名
*/
public String getFrom() throws Exception
{
InternetAddress address[] = (InternetAddress[]) mimeMessage.getFrom();
String from = address[0].getAddress();
if (from == null)
{
from = "";
System.out.println("无法知道发送者.");
}
String personal = address[0].getPersonal();
if (personal == null)
{
personal = "";
System.out.println("无法知道发送者的姓名.");
}
String fromAddr = null;
if (personal != null || from != null)
{
fromAddr = personal + "<" + from + ">";
System.out.println("发送者是：" + fromAddr);
}
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
* * "to"----收件人 "cc"---抄送人地址 "bcc"---密送人地址
*/
public String getMailAddress(String type) throws Exception
{
String mailAddr = "";
String addType = type.toUpperCase();
InternetAddress[] address = null;
if (addType.equals("TO") || addType.equals("CC") || addType.equals("BCC"))
{
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 (address != null)
{
for (int i = 0; i < address.length; i++)
{
String emailAddr = address[i].getAddress();
if (emailAddr == null)
{
emailAddr = "";
}
else
{
System.out.println("转换之前的emailAddr: " + emailAddr);
emailAddr = MimeUtility.decodeText(emailAddr);
System.out.println("转换之后的emailAddr: " + emailAddr);
}
String personal = address[i].getPersonal();
if (personal == null)
{
personal = "";
}
else
{
System.out.println("转换之前的personal: " + personal);
personal = MimeUtility.decodeText(personal);
System.out.println("转换之后的personal: " + personal);
}
String compositeto = personal + "<" + emailAddr + ">";
System.out.println("完整的邮件地址：" + compositeto);
mailAddr += "," + compositeto;
}
mailAddr = mailAddr.substring(1);
}
}
else
{
throw new Exception("错误的电子邮件类型!");
}
return mailAddr;
}
/**
* * 获得邮件主题
*/
public String getSubject() throws MessagingException
{
String subject = "";
try
{
System.out.println("转换前的subject：" + mimeMessage.getSubject());
subject = MimeUtility.decodeText(mimeMessage.getSubject());
System.out.println("转换后的subject: " + mimeMessage.getSubject());
if (subject == null)
{
subject = "";
}
}
catch (Exception exce)
{
exce.printStackTrace();
}
return subject;
}
/**
* * 获得邮件发送日期
*/
public String getSentDate() throws Exception
{
Date sentDate = mimeMessage.getSentDate();
System.out.println("发送日期 原始类型: " + dateFormat);
SimpleDateFormat format = new SimpleDateFormat(dateFormat);
String strSentDate = format.format(sentDate);
System.out.println("发送日期 可读类型: " + strSentDate);
return strSentDate;
}
/**
* * 获得邮件正文内容
*/
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
*/
public void getMailContent(Part part) throws Exception
{
String contentType = part.getContentType();
// 获得邮件的MimeType类型
System.out.println("邮件的MimeType类型: " + contentType);
int nameIndex = contentType.indexOf("name");
boolean conName = false;
if (nameIndex != -1)
{
conName = true;
}
System.out.println("邮件内容的类型: " + contentType);
if (part.isMimeType("text/plain") && conName == false)
{
// text/plain 类型
bodyText.append((String) part.getContent());
}
else if (part.isMimeType("text/html") && conName == false)
{
// text/html 类型
bodyText.append((String) part.getContent());
}
else if (part.isMimeType("multipart/*"))
{
// multipart/*
Multipart multipart = (Multipart) part.getContent();
int counts = multipart.getCount();
for (int i = 0; i < counts; i++)
{
getMailContent(multipart.getBodyPart(i));
}
}
else if (part.isMimeType("message/rfc822"))
{
// message/rfc822
getMailContent((Part) part.getContent());
}
else
{
}
}
/**
* * 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"
*/
public boolean getReplySign() throws MessagingException
{
boolean replySign = false;
String needReply[] = mimeMessage.getHeader("Disposition-Notification-To");
if (needReply != null)
{
replySign = true;
}
if (replySign)
{
System.out.println("该邮件需要回复");
}
else
{
System.out.println("该邮件不需要回复");
}
return replySign;
}
/**
* 获得此邮件的Message-ID
*/
public String getMessageId() throws MessagingException
{
String messageID = mimeMessage.getMessageID();
System.out.println("邮件ID: " + messageID);
return messageID;
}
/**
* 判断此邮件是否已读，如果未读返回false,反之返回true
*/
public boolean isNew() throws MessagingException
{
boolean isNew = false;
Flags flags = ((Message) mimeMessage).getFlags();
Flags.Flag[] flag = flags.getSystemFlags();
System.out.println("flags的长度: " + flag.length);
for (int i = 0; i < flag.length; i++)
{
if (flag[i] == Flags.Flag.SEEN)
{
isNew = true;
System.out.println("seen email...");
// break;
}
}
return isNew;
}
/**
* 判断此邮件是否包含附件
*/
public boolean isContainAttach(Part part) throws Exception
{
boolean attachFlag = false;
// String contentType = part.getContentType();
if (part.isMimeType("multipart/*"))
{
Multipart mp = (Multipart) part.getContent();
for (int i = 0; i < mp.getCount(); i++)
{
BodyPart mPart = mp.getBodyPart(i);
String disposition = mPart.getDisposition();
if ((disposition != null) && ((disposition.equals(Part.ATTACHMENT)) || (disposition.equals(Part.INLINE))))
attachFlag = true;
else if (mPart.isMimeType("multipart/*"))
{
attachFlag = isContainAttach((Part) mPart);
}
else
{
String conType = mPart.getContentType();
if (conType.toLowerCase().indexOf("application") != -1)
attachFlag = true;
if (conType.toLowerCase().indexOf("name") != -1)
attachFlag = true;
}
}
}
else if (part.isMimeType("message/rfc822"))
{
attachFlag = isContainAttach((Part) part.getContent());
}
return attachFlag;
}
/**
* * 保存附件
*/
public void saveAttachMent(Part part) throws Exception
{
String fileName = "";
if (part.isMimeType("multipart/*"))
{
Multipart mp = (Multipart) part.getContent();
for (int i = 0; i < mp.getCount(); i++)
{
BodyPart mPart = mp.getBodyPart(i);
String disposition = mPart.getDisposition();
if ((disposition != null) && ((disposition.equals(Part.ATTACHMENT)) || (disposition.equals(Part.INLINE))))
{
fileName = mPart.getFileName();
if (fileName.toLowerCase().indexOf("gb2312") != -1)
{
fileName = MimeUtility.decodeText(fileName);
}
saveFile(fileName, mPart.getInputStream());
}
else if (mPart.isMimeType("multipart/*"))
{
saveAttachMent(mPart);
}
else
{
fileName = mPart.getFileName();
if ((fileName != null) && (fileName.toLowerCase().indexOf("GB2312") != -1))
{
fileName = MimeUtility.decodeText(fileName);
saveFile(fileName, mPart.getInputStream());
}
}
}
}
else if (part.isMimeType("message/rfc822"))
{
saveAttachMent((Part) part.getContent());
}
}
/**
* 设置附件存放路径
*/
public void setAttachPath(String attachPath)
{
this.saveAttachPath = attachPath;
}
/**
* * 设置日期显示格式
*/
public void setDateFormat(String format) throws Exception
{
this.dateFormat = format;
}
/**
* * 获得附件存放路径
*/
public String getAttachPath()
{
return saveAttachPath;
}
/**
* * 真正的保存附件到指定目录里
*/
private void saveFile(String fileName, InputStream in) throws Exception
{
String osName = System.getProperty("os.name");
String storeDir = getAttachPath();
String separator = "";
if (osName == null)
{
osName = "";
}
if (osName.toLowerCase().indexOf("win") != -1)
{
separator = "\\";
if (storeDir == null || storeDir.equals(""))
storeDir = "c:\\tmp";
}
else
{
separator = "/";
storeDir = "/tmp";
}
File storeFile = new File(storeDir + separator + fileName);
System.out.println("附件的保存地址: " + storeFile.toString());
// for(int i=0;storefile.exists();i++){
// storefile = new File(storedir+separator+fileName+i);
// }
BufferedOutputStream bos = null;
BufferedInputStream bis = null;
try
{
bos = new BufferedOutputStream(new FileOutputStream(storeFile));
bis = new BufferedInputStream(in);
int c;
while ((c = bis.read()) != -1)
{
bos.write(c);
bos.flush();
}
}
catch (Exception exception)
{
exception.printStackTrace();
throw new Exception("文件保存失败!");
}
finally
{
bos.close();
bis.close();
}
}
}- GetMailInfoThread类，用于获取多个邮件信息的线程
package email;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Part;
import javax.mail.internet.MimeMessage;
/**
* 用于获取邮箱中邮件信息的线程
* @author lupf
*
*/
public class GetMailInfoThread extends Thread
{
Message message[] = null;
MailImfo re = null;
public GetMailInfoThread(Message message[])
{
this.message = message;
}
@Override
public void run()
{
// TODO Auto-generated method stub
super.run();
if (null != message)
{
for (int i = 0; i < message.length; i++)
{
try
{
re = new MailImfo((MimeMessage) message[i]);
System.out.println("邮件 " + i + " 主题: " + re.getSubject());
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((Part) message[i]));
System.out.println("邮件 " + i + " 发送时间: " + re.getSentDate());
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"));
re.setDateFormat("yyyy年MM月dd日");
System.out.println("邮件 " + i + " 发送时间: " + re.getSentDate());
System.out.println("邮件 " + i + " 邮件ID: " + re.getMessageId());
re.getMailContent((Part) message[i]);
System.out.println("邮件 " + i + " 正文内容: \r\n" + re.getBodyText());
}
catch (MessagingException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}- MailTest测试入口
这里需要填写自己的个人邮箱及前面步骤中生成的授权码；否则代码将无法正常运行。
package email;
import java.util.Properties;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Store;
public class MailTest
{
/**
* @param args
*/
public static void main(String[] args)
{
try
{
String host = "pop.qq.com";
String username = "QQ邮箱@qq.com";
String password = "生成的授权码";
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.getDefaultInstance(p, null);
Store store = session.getStore("pop3");
store.connect(host, username, password);
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_ONLY);
Message message[] = folder.getMessages();
System.out.println("邮件数量: " + message.length);
new GetMailInfoThread(message).start();
}
catch (NoSuchProviderException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (MessagingException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}以上代码执行效果如下，涉及到隐私信息，运行结果没有截取更多，请按个人的运行结果为准：
邮件内容解析
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