需要包javamail.jar，activation.jar
列子：
package com.acestek.lbs.terminal;
import java.io.*;
import java.text.*;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import org.apache.log4j.Logger;
public class CheckMail {
/**
* Logger for this class
*/
private static final Logger logger = Logger
.getLogger(CheckMail.class);
private MimeMessage mimeMessage = null;
private String saveAttachPath = "d:\\"; //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 CheckMail(){}
public CheckMail(MimeMessage mimeMessage){
this.mimeMessage = mimeMessage;
System.out.println("create a PraseMimeMessage object........");
}
public void setMimeMessage(MimeMessage mimeMessage){
this.mimeMessage = mimeMessage;
}
/**
* 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="";
String personal = address[0].getPersonal();
if(personal == null) personal="";
String 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
* "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
if(email==null) email="";
else{
email=MimeUtility.decodeText(email);
}
String personal=address[i].getPersonal();
if(personal==null) personal="";
else{
personal=MimeUtility.decodeText(personal);
}
String compositeto=personal+"<"+email+">";
mailaddr+=","+compositeto;
}
mailaddr=mailaddr.substring(1);
}
}else{
throw new Exception("Error emailaddr type!");
}
return mailaddr;
}
/**
* 获得邮件主题
*/
public String getSubject()throws MessagingException{
String subject = "";
try{
subject = MimeUtility.decodeText(mimeMessage.getSubject());
if(subject == null) subject="";
}catch(Exception exce){
}
return subject;
}
/**
* 获得邮件发送日期
*/
public String getSentDate()throws Exception{
Date sentdate = mimeMessage.getSentDate();
SimpleDateFormat format = new SimpleDateFormat(dateformat);
return format.format(sentdate);
}
/**
* 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();
int nameindex = contenttype.indexOf("name");
boolean conname =false;
if(nameindex != -1) conname=true;
System.out.println("CONTENTTYPE: "+contenttype);
if(part.isMimeType("text/plain") && !conname){
bodytext.append((String)part.getContent());
}else if(part.isMimeType("text/html") && !conname){
bodytext.append((String)part.getContent());
}else if(part.isMimeType("multipart/*")){
Multipart multipart = (Multipart)part.getContent();
int counts = multipart.getCount();
for(int i=0;i
}
}else if(part.isMimeType("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;
}
return replysign;
}
/**
* 获得此邮件的Message-ID
*/
public String getMessageId()throws MessagingException{
return mimeMessage.getMessageID();
}
/**
* 【判断此邮件是否已读，如果未读返回返回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's length: "+flag.length);
for(int i=0;i
isnew=true;
System.out.println("seen Message.......");
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
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
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="d:\\";
}else{
separator = "/";
storedir = "/mail";
}
File storefile = new File(storedir+separator+fileName);
System.out.println("storefile's path: "+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();
}
logger.info("附件已保存到"+storedir);
}catch(Exception exception){
exception.printStackTrace();
throw new Exception("文件保存失败!");
}finally{
bos.close();
bis.close();
}
}
/**
* delete mail
*/
public static void deleteMail()
{
String host = "pop3.sina.com";
String userName = "xingui5624";
String passWord = "******";
Properties props = new Properties();
//Properties props = System.getProperties();这种方法创建 Porperties 同上
Session session = Session.getDefaultInstance(props);
session.setDebug(true);
try {
System.out.println("begin delete ...........");
Store store = session.getStore("pop3");
store.connect(host, userName, passWord);//验证邮箱
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_WRITE);//设置我读写方式打开
int countOfAll = folder.getMessageCount();//取得邮件个数
int unReadCount = folder.getUnreadMessageCount();//已读个数
int newOfCount = folder.getNewMessageCount();//未读个数
System.out.println("总个数：" +countOfAll);
System.out.println("已读个数：" +unReadCount);
System.out.println("未读个数：" +newOfCount);
for(int i=1; i<=countOfAll; i++)
{
Message message = folder.getMessage(i);
message.setFlag(Flags.Flag.DELETED, true);//设置已删除状态为true
if(message.isSet(Flags.Flag.DELETED))
System.out.println("已经删除第"+i+"邮件。。。。。。。。。");
}
folder.close(true);
store.close();
System.out.println("delete ok.................................");
} catch (NoSuchProviderException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
}
调用示例：
public static void main(String args[])throws Exception{
String host = "主机名/ip"; //【pop.mail.yahoo.com.cn】
String username ="用户名"; //【wwp_1124】
String password ="密码"; //【........】
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, 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("Messages's length: "+message.length);
PraseMimeMessage pmm = null;
for(int i=0;i
System.out.println("Message "+i+" subject: "+pmm.getSubject());
System.out.println("Message "+i+" sentdate: "+pmm.getSentDate());
System.out.println("Message "+i+" replysign: "+pmm.getReplySign());
System.out.println("Message "+i+" hasRead: "+pmm.isNew());
System.out.println("Message "+i+" containAttachment: "+pmm.isContainAttach((Part)message[i]));
System.out.println("Message "+i+" form: "+pmm.getFrom());
System.out.println("Message "+i+" to: "+pmm.getMailAddress("to"));
System.out.println("Message "+i+" cc: "+pmm.getMailAddress("cc"));
System.out.println("Message "+i+" bcc: "+pmm.getMailAddress("bcc"));
pmm.setDateFormat("yy年MM月dd日 HH:mm");
System.out.println("Message "+i+" sentdate: "+pmm.getSentDate());
System.out.println("Message "+i+" Message-ID: "+pmm.getMessageId());
pmm.getMailContent((Part)message[i]);
System.out.println("Message "+i+" bodycontent: \r\n"+pmm.getBodyText());
pmm.setAttachPath("c:\\tmp\\coffeecat1124");
pmm.saveAttachMent((Part)message[i]);
}
}
}
/***************************/
public boolean getMail()
{
boolean hasAttach =false;
try{
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, 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("共有: "+message.length+"封邮件");
CheckMail pmm = null;
for(int i=0;i
{
pmm = new CheckMail((MimeMessage)message[i]);
System.out.println("Message "+i+" 主题: "+pmm.getSubject());
System.out.println("Message "+i+" 发送日期: "+pmm.getSentDate());
// System.out.println("Message "+i+" 是否需要回执: "+pmm.getReplySign());
// System.out.println("Message "+i+" 是否已读: "+pmm.isNew());
System.out.println("Message "+i+" 是否有附件: "+pmm.isContainAttach((Part)message[i]));
System.out.println("Message "+i+" 发件人: "+pmm.getFrom());
//System.out.println("Message "+i+" 收件人: "+pmm.getMailAddress("to"));
//System.out.println("Message "+i+" cc: "+pmm.getMailAddress("cc"));
//System.out.println("Message "+i+" bcc: "+pmm.getMailAddress("bcc"));
pmm.setDateFormat("yy年MM月dd日 HH:mm");
System.out.println("Message "+i+" 发送日期: "+pmm.getSentDate());
//System.out.println("Message "+i+" Message-ID: "+pmm.getMessageId());
// pmm.getMailContent((Part)message[i]);
// System.out.println("Message "+i+" 正文: \r\n"+pmm.getBodyText());
pmm.setAttachPath("d:\\");
pmm.saveAttachMent((Part)message[i]);
if(pmm.isContainAttach((Part)message[i]))
{
hasAttach=true;
}
}
}
return hasAttach;
}
catch(Exception e)
{
return false;
}
}