使用javamail接收电子邮件[转]
使用javamail接收电子邮件代码
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 java.util.Properties;
import javax.mail.BodyPart;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.URLName;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
/**
* 有一封邮件就需要建立一个ReciveMail对象
*/
public class ReciveMail {
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
private String dateformat = " yy-MM-dd HH:mm " ; // 默认的日前显示格式
public ReciveMail(MimeMessage mimeMessage) {
this .mimeMessage = mimeMessage;
}
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 < address.length; i ++ ) {
String email = address[i].getAddress();
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 < counts; i ++ ) {
getMailContent(multipart.getBodyPart(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 < flag.length; i ++ ) {
if (flag[i] == Flags.Flag.SEEN) {
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 < 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( " 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();
}
} catch (Exception exception) {
exception.printStackTrace();
throw new Exception( " 文件保存失败! " );
} finally {
bos.close();
bis.close();
}
}
/**
* PraseMimeMessage类测试
*/
public static void main(String args[]) throws Exception {
Properties props = System.getProperties();
props.put( " mail.smtp.host " , " smtp.163.com " );
props.put( " mail.smtp.auth " , " true " );
Session session = Session.getDefaultInstance(props, null );
URLName urln = new URLName( " pop3 " , " pop3.163.com " , 110 , null ,
" xxxxxx " , " ******* " );
Store store = session.getStore(urln);
store.connect();
Folder folder = store.getFolder( " INBOX " );
folder.open(Folder.READ_ONLY);
Message message[] = folder.getMessages();
System.out.println( " 您有邮件: " + message.length + " 封 " );
ReciveMail pmm = null ;
for ( int i = 0 ; i < message.length; i ++ ) {
System.out.println( " ==============================第 " + (i + 1 ) + " 封=========================== " );
pmm = new ReciveMail((MimeMessage) message[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());
// 获得邮件内容===============
pmm.getMailContent((Part) message[i]);
System.out.println( " Message " + i + " bodycontent: \r\n " + pmm.getBodyText());
pmm.setAttachPath( " c:\\ddd " );
pmm.saveAttachMent((Part) message[i]);
}
}
}
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 java.util.Properties;
import javax.mail.BodyPart;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.URLName;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
/**
* 有一封邮件就需要建立一个ReciveMail对象
*/
public class ReciveMail {
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
private String dateformat = " yy-MM-dd HH:mm " ; // 默认的日前显示格式
public ReciveMail(MimeMessage mimeMessage) {
this .mimeMessage = mimeMessage;
}
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 < address.length; i ++ ) {
String email = address[i].getAddress();
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 < counts; i ++ ) {
getMailContent(multipart.getBodyPart(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 < flag.length; i ++ ) {
if (flag[i] == Flags.Flag.SEEN) {
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 < 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( " 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();
}
} catch (Exception exception) {
exception.printStackTrace();
throw new Exception( " 文件保存失败! " );
} finally {
bos.close();
bis.close();
}
}
/**
* PraseMimeMessage类测试
*/
public static void main(String args[]) throws Exception {
Properties props = System.getProperties();
props.put( " mail.smtp.host " , " smtp.163.com " );
props.put( " mail.smtp.auth " , " true " );
Session session = Session.getDefaultInstance(props, null );
URLName urln = new URLName( " pop3 " , " pop3.163.com " , 110 , null ,
" xxxxxx " , " ******* " );
Store store = session.getStore(urln);
store.connect();
Folder folder = store.getFolder( " INBOX " );
folder.open(Folder.READ_ONLY);
Message message[] = folder.getMessages();
System.out.println( " 您有邮件: " + message.length + " 封 " );
ReciveMail pmm = null ;
for ( int i = 0 ; i < message.length; i ++ ) {
System.out.println( " ==============================第 " + (i + 1 ) + " 封=========================== " );
pmm = new ReciveMail((MimeMessage) message[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());
// 获得邮件内容===============
pmm.getMailContent((Part) message[i]);
System.out.println( " Message " + i + " bodycontent: \r\n " + pmm.getBodyText());
pmm.setAttachPath( " c:\\ddd " );
pmm.saveAttachMent((Part) message[i]);
}
}
}