Android pop3与imap方式接收邮件（javamail）

/**
* 以pop3方式读取邮件，此方法不能读取邮件是否为已读，已经通过测试
* */
private void getEmail() {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();

try {
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,
"邮箱名（没有@163.com）", "密码");
// 邮件协议为pop3，邮件服务器是pop3.163.com，端口为110，用户名/密码为abcw111222/123456w
Store store = session.getStore(urln);
store.connect();
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_WRITE);
Message message[] = folder.getMessages();
if (message.length > 0) {
Map<String, Object> map;
System.out.println("Messages's length: " + message.length);
ReciveOneMail pmm = null;
for (int i = 0; i < message.length; i++) {
System.out.println("======================");
pmm = new ReciveOneMail((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());

boolean isRead = pmm.isNew();// 判断邮件是否为已读
System.out.println("Message " + i + " hasRead: " + isRead);
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());
String file_path = File.separator + "mnt" + File.separator
+ "sdcard" + File.separator;
System.out.println(file_path);
pmm.setAttachPath(file_path);
pmm.saveAttachMent((Part) message[i]);

map = new HashMap<String, Object>();
map.put("from", pmm.getFrom());
map.put("title", pmm.getSubject());
map.put("time", pmm.getSentDate());
map.put("read", isRead);
list.add(map);
}
SimpleAdapter adapter = new SimpleAdapter(MainActivity.this,
list, R.layout.item_receiveemail, new String[] {
"from", "title", "time", "read" }, new int[] {
R.id.item_receive_sendname,
R.id.item_receive_title,
R.id.item_receive_sendtime,
R.id.item_receive_read });
lv.setAdapter(adapter);

} else {
Toast.makeText(MainActivity.this, "没有邮件", Toast.LENGTH_SHORT)
.show();
}
} catch (NoSuchProviderException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/**
* 以imap方式读取邮件，可以判定读取邮件是否为已读
* */
private void getImapEmail() {
String user = "abcw111222@163.com";// 邮箱的用户名
String password = "123456w"; // 邮箱的密码

Properties prop = System.getProperties();
prop.put("mail.store.protocol", "imap");
prop.put("mail.imap.host", "imap.163.com");

Session session = Session.getInstance(prop);

int total = 0;
IMAPStore store;
try {
store = (IMAPStore) session.getStore("imap"); // 使用imap会话机制，连接服务器

store.connect(user, password);

IMAPFolder folder = (IMAPFolder) store.getFolder("INBOX"); // 收件箱
folder.open(Folder.READ_WRITE);
// 获取总邮件数
total = folder.getMessageCount();
System.out.println("---共有邮件：" + total + " 封---");
// 得到收件箱文件夹信息，获取邮件列表
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
System.out.println("未读邮件数：" + folder.getUnreadMessageCount());
Message[] messages = folder.getMessages();
if (messages.length > 0) {
Map<String, Object> map;
System.out.println("Messages's length: " + messages.length);
ReciveOneMail pmm = null;
for (int i = 0; i < messages.length; i++) {
System.out.println("======================");
pmm = new ReciveOneMail((MimeMessage) messages[i]);
System.out.println("Message " + i + " subject: "
+ pmm.getSubject());
try {
System.out.println("Message " + i + " sentdate: "
+ pmm.getSentDate());
System.out.println("Message " + i + " replysign: "
+ pmm.getReplySign());

boolean isRead;// 用来判断该邮件是否为已读
String read;
Flags flags = messages[i].getFlags();
if (flags.contains(Flags.Flag.SEEN)) {
System.out.println("这是一封已读邮件");
isRead = true;
read = "已读";
} else {
System.out.println("未读邮件");
isRead = false;
read = "未读";
}
System.out.println("Message " + i + " hasRead: "
+ isRead);
System.out.println("Message " + i
+ "  containAttachment: "
+ pmm.isContainAttach((Part) messages[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) messages[i]);
System.out.println("Message " + i
+ " bodycontent: \r\n" + pmm.getBodyText());
String file_path = File.separator + "mnt"
+ File.separator + "sdcard" + File.separator;
System.out.println(file_path);
pmm.setAttachPath(file_path);
pmm.saveAttachMent((Part) messages[i]);

map = new HashMap<String, Object>();
map.put("from", pmm.getFrom());
map.put("title", pmm.getSubject());
map.put("time", pmm.getSentDate());
map.put("read", read);
list.add(map);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
SimpleAdapter adapter = new SimpleAdapter(MainActivity.this,
list, R.layout.item_receiveemail, new String[] {
"from", "title", "time", "read" }, new int[] {
R.id.item_receive_sendname,
R.id.item_receive_title,
R.id.item_receive_sendtime,
R.id.item_receive_read });
lv.setAdapter(adapter);
}
} catch (javax.mail.NoSuchProviderException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}

/**
* 接收邮箱中的邮件，可以接收带附件的
* （目前接收的邮件中含有中文内容，会出现乱码，但是标题不会乱码）
* 邮件中的内容如果用专门的阅读器也不会出现乱码现象，图片等都可以下载
* */
@SuppressLint("DefaultLocale")
public class ReciveOneMail {

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 ReciveOneMail(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
*/
@SuppressLint("DefaultLocale")
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
*/
@SuppressLint("SimpleDateFormat")
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】pop3协议使用时不能判断。
*/
public boolean isNew() throws MessagingException {
boolean isnew = false;//由于isnew设为false所以每次显示的都为未读
Flags flags = ((Message) mimeMessage).getFlags();
System.out.println("--------flags-------" + flags);
Flags.Flag[] flag = flags.getSystemFlags();
System.out.println("----flag----" + flag);
System.out.println("flags's length: " + flag.length);
for (int i = 0; i < flag.length; i++) {
System.out.println("flag=======" + flag[i]);
System.out.println("-=-=-=Flags.Flag.SEEN=-=-=-="+Flags.Flag.SEEN);
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
*/
@SuppressLint("DefaultLocale")
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】
*/
@SuppressLint("DefaultLocale")
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);//主体部分得到处理
String disposition = mpart.getDisposition();
if ((disposition != null)
&& ((disposition.equals(Part.ATTACHMENT)) || (disposition
.equals(Part.INLINE)))) {//ATTACHMENT附件，INLINE嵌入
fileName = mpart.getFileName();
if (fileName.toLowerCase().indexOf("gb18030") != -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("GB18030") != -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】
*/
@SuppressLint("DefaultLocale")
private void saveFile(String fileName, InputStream in) throws Exception {
String osName = System.getProperty("os.name");
System.out.println("----fileName----" + fileName);
// String storedir = getAttachPath();
//        String separator = "";
if (osName == null)
osName = "";
File storefile = new File(File.separator + "mnt" + File.separator
+ "sdcard" + File.separator + fileName);

storefile.createNewFile();
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();
}
}
}