在我的应用程序中我使用smtp.i发送邮件想要将图像文件附加到mail.how我可以附加吗?我试过它。但是没有在mail.its中给图像提供小图标。 请提前帮助。谢谢。 下面是邮件代码和邮件图片的样子 -
public class MailImageFile extends javax.mail.Authenticator {
public MailImageFile(){
}
public void Mail(String user, String pass) {
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", "465");
Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(USERNAME, PASSWORD);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(USERNAME));
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(TO));
message.setSubject("Testing Subject");
Multipart multipart = new MimeMultipart();
MimeBodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/wallpaper.jpg"));
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName("image.png");
messageBodyPart.setDisposition(MimeBodyPart.ATTACHMENT);
messageBodyPart.setHeader("Content-ID","<vogue>");
multipart.addBodyPart(messageBodyPart);
message.setContent(multipart);
Transport.send(message);
} catch (MessagingException e) {
throw new RuntimeException(e);
}
}
}
答案 0 :(得分:2)
你可以附上这样的文件
指定n将附加该文件的路径
编辑:
Multipart _multipart; = new MimeMultipart();
BodyPart messageBodyPart = new MimeBodyPart();
File sdCard =Environment.getExternalStorageDirectory();
String path=sdCard.getAbsolutePath() + "/AttendanceSystem/MonthlyReport.xls";
messageBodyPart.setFileName(path);
_multipart.addBodyPart(messageBodyPart);
// Put parts in message
msg.setContent(_multipart)
按照以上方式进行操作我只是在我的设备上测试了它的工作n附加chk enter code here
答案 1 :(得分:2)
第二个想法:
使用javax.mail.util.ByteArrayDataSource:
Multipart multipart = new MimeMultipart();
DataSource source = new ByteArrayDataSource(imageFile, "image/bmp");
// creates body part for the message
MimeBodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setContent("Hi...", "text/html; charset=utf-8");
MimeBodyPart attachPart;
attachPart = new MimeBodyPart();
attachPart .setDataHandler(new DataHandler(source));
attachPart .setFileName(filename);
multipart.addBodyPart(messageBodyPart);
multipart.addBodyPart(attachPart);
message.setContent(multipart);
ByteArrayDataSource的构造函数需要将参数作为字节数组或InputStream。所以,如果你在变量bmp中有你的Bitmap,你会得到像这样的byteArray:
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
并将在ByteArrayDataSource中使用它,如下所示:
DataSource source = new ByteArrayDataSource(byteArray, "image/png");
答案 2 :(得分:1)
试试这段代码:
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;
}
}
@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 void setTo(String[] toArr) {
this._to = toArr;
}
public void setFrom(String string) {
this._from = string;
}
public void setSubject(String string) {
this._subject = string;
}
// more of the getters and setters …..
}
对于附件文件,请添加以下代码:
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);
}