经过一些研究后，我设法通过以下步骤here直接从我的应用程序发送电子邮件，而不启动任何邮件应用
但现在我想添加一个MS Excel文件作为附件
我不知道如何
正如我从这段代码中所理解的那样：
public synchronized void sendMail(String subject, String body, String sender, String recipients) throws Exception {
try{
MimeMessage message = new MimeMessage(session);
DataHandler handler = new DataHandler(new ByteArrayDataSource(body.getBytes(), "text/plain"));
message.setSender(new InternetAddress(sender));
message.setSubject(subject);
message.setDataHandler(handler);
if (recipients.indexOf(',') > 0)
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));
else
message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));
Transport.send(message);
}catch(Exception e){
}
}
我在后台asynctask中调用上面的方法来发送消息，但有没有办法添加MS Excel文件附件
答案 0 :(得分：0)
带文件参数的修改函数（信用转到https://stackoverflow.com/a/6222546/2829009）：
public synchronized void sendMail(String subject, String body, String sender, String recipients, File attachment) throws Exception {
try{
MimeMessage message = new MimeMessage(session);
message.setSender(new InternetAddress(sender));
message.setSubject(subject);
MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText(body);
MimeBodyPart mbp2 = new MimeBodyPart();
FileDataSource fds = new FileDataSource(attachment);
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName(fds.getName());
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
mp.addBodyPart(mbp2);
message.setContent(mp);
if (recipients.indexOf(',') > 0)
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));
else
message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));
Transport.send(message);
}catch(Exception e){
}
}
用法：
sendMail("Subject", "Body text", "test@test.com", "test1@test.com", new File("/mnt/sdcard/ExcelFile.xls"));
答案 1 :(得分：0)
我只是发现这个链接允许使用附件programmaticaly仅使用一个类
发送邮件这里是：
import java.util.Date;
import java.util.Properties;
import javax.activation.CommandMap;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.activation.MailcapCommandMap;
import javax.mail.BodyPart;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
public class Mail extends javax.mail.Authenticator {
private String _user;
private String _pass;
private String[] _to;
private String _from;
private String _port;
private String _sport;
private String _host;
private String _subject;
private String _body;
private boolean _auth;
private boolean _debuggable;
private Multipart _multipart;
public Mail() {
_host = "smtp.gmail.com"; // default smtp server
_port = "465"; // default smtp port
_sport = "465"; // default socketfactory port
_user = ""; // username
_pass = ""; // password
_from = ""; // email sent from
_subject = ""; // email subject
_body = ""; // email body
_debuggable = false; // debug mode on or off - default off
_auth = true; // smtp authentication - default on
_multipart = new MimeMultipart();
// There is something wrong with MailCap, javamail can not find a
// handler for the multipart/mixed part, so this bit needs to be added.
MailcapCommandMap mc = (MailcapCommandMap) CommandMap
.getDefaultCommandMap();
mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
CommandMap.setDefaultCommandMap(mc);
}
public Mail(String user, String pass) {
this();
_user = user;
_pass = pass;
}
public boolean send() throws Exception {
Properties props = _setProperties();
if (!_user.equals("") && !_pass.equals("") && _to.length > 0
&& !_from.equals("") && !_subject.equals("")
&& !_body.equals("")) {
Session session = Session.getInstance(props, this);
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(_from));
InternetAddress[] addressTo = new InternetAddress[_to.length];
for (int i = 0; i < _to.length; i++) {
addressTo[i] = new InternetAddress(_to[i]);
}
msg.setRecipients(MimeMessage.RecipientType.TO, addressTo);
msg.setSubject(_subject);
msg.setSentDate(new Date());
// setup message body
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(_body);
_multipart.addBodyPart(messageBodyPart);
// Put parts in message
msg.setContent(_multipart);
// send email
Transport.send(msg);
return true;
} else {
return false;
}
}
public void addAttachment(String filename) throws Exception {
BodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
_multipart.addBodyPart(messageBodyPart);
}
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(_user, _pass);
}
private Properties _setProperties() {
Properties props = new Properties();
props.put("mail.smtp.host", _host);
if (_debuggable) {
props.put("mail.debug", "true");
}
if (_auth) {
props.put("mail.smtp.auth", "true");
}
props.put("mail.smtp.port", _port);
props.put("mail.smtp.socketFactory.port", _sport);
props.put("mail.smtp.socketFactory.class",
"javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
return props;
}
// the getters and setters
public String getBody() {
return _body;
}
public void setBody(String _body) {
this._body = _body;
}
public String[] get_to() {
return _to;
}
public void setTo(String[] _to) {
this._to = _to;
}
public String get_from() {
return _from;
}
public void setFrom(String _from) {
this._from = _from;
}
public String get_subject() {
return _subject;
}
public void setSubject(String _subject) {
this._subject = _subject;
}
// more of the getters and setters …..
}
以下是使用它的示例：
new AsyncTask<String, String, String>() {
@Override
protected void onPreExecute() {
super.onPreExecute();
Utils.getProgressDialog(CheckedListActivity.this);
}
boolean success = false;
@Override
protected String doInBackground(String... params) {
Mail m = new Mail("username@gmail.com", "password");
String[] toArr = {"sdfdfvg@gmail.com", "sdcfsdfdsf@hotmail.com"};
m.setTo(toArr);
m.setFrom("username@gmail.com");
m.setSubject("MyApp COMMANDE TEST");
m.setBody("MyApp COMMANDE TEST contenu");
try {
m.addAttachment("/sdcard/MyAPP/liste_clients.xls");
if(m.send()) {
success = true;
} else {
success = false;
}
} catch(Exception e) {
Log.e("MailApp", "Could not send email", e);
}
return null;
}
@Override
protected void onPostExecute(String result) {
Utils.dismissProgressDialog();
if(success){
Utils.showAlertDialog(CheckedListActivity.this, "Envoi reussi", "Votre message est envoyé avec succée");
}else{
Utils.showAlertDialog(CheckedListActivity.this, "Echec d'envoi", "Votre message n'est pas envoyé, veuillez ressayer");
}
}
}.execute();
并且实时接收邮件，而其他类
则不然这是src链接：here
当然我们必须添加那些jar：
我希望它有所帮助