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我被困在一个项目中，试图发送图像在我发送的应用程序中的邮件正文中，有人知道我该怎么做？Android从javamail api发送图像
这里是代码的一部分，我发送邮件：
try {
String[] recipients = {editText.getText().toString()};
SendEmailAsyncTask email = new SendEmailAsyncTask();
email.m = new Mail(Base64Decoder.decoderBase64(ajudaquimail), Base64Decoder.decoderBase64(ajudaquipass));
email.m.set_from("[email protected]");
email.m.setBody("Seu amigo " + userName + " Te convida para participar do Aplicativo Ajudaqui, verifique também o grupo " + groupName + " para que possam compartilhar de suas ajudas: \n\n LINK PARA O APP:\n " + link);
email.m.get_multipart();
email.m.set_to(recipients);
email.m.set_subject("AJUDAQUI - CONVITE");
email.execute();
Toast.makeText(getApplicationContext(), "Mensagem enviada", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
Toast.makeText(getApplicationContext(), "Falha ao enviar mensagem, Verifique o email digitado", Toast.LENGTH_SHORT).show();
}
这里是我的邮件对象：
package studio.brunocasamassa.ajudaquioficial.helper;
/**
* Created by bruno on 31/07/2017.
*/
import android.content.res.AssetManager;
import android.view.View;
import java.io.InputStream;
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;
import static com.facebook.FacebookSdk.getApplicationContext;
/**
* Created by brandonjenniges on 11/6/15.
*/
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 View _view;
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
_view = null;
_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);
AssetManager am = getApplicationContext().getAssets();
InputStream is = null;
//在这里，我试图让我的形象的资产和投入数据源 //但错了，这是我的析疑
DataSource source = new FileDataSource("invite.jpg");
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName("invite.jpg");
_multipart.addBodyPart(messageBodyPart);
msg.setHeader("X-Priority", "1");
// 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_user() {
return _user;
}
public void set_user(String _user) {
this._user = _user;
}
public String get_pass() {
return _pass;
}
public void set_pass(String _pass) {
this._pass = _pass;
}
public String[] get_to() {
return _to;
}
public void set_to(String[] _to) {
this._to = _to;
}
public String get_from() {
return _from;
}
public void set_from(String _from) {
this._from = _from;
}
public String get_port() {
return _port;
}
public void set_port(String _port) {
this._port = _port;
}
public String get_sport() {
return _sport;
}
public void set_sport(String _sport) {
this._sport = _sport;
}
public String get_host() {
return _host;
}
public void set_host(String _host) {
this._host = _host;
}
public String get_subject() {
return _subject;
}
public void set_subject(String _subject) {
this._subject = _subject;
}
public boolean is_auth() {
return _auth;
}
public void set_auth(boolean _auth) {
this._auth = _auth;
}
public boolean is_debuggable() {
return _debuggable;
}
public void set_debuggable(boolean _debuggable) {
this._debuggable = _debuggable;
}
public Multipart get_multipart() {
return _multipart;
}
public void set_multipart(Multipart _multipart) {
this._multipart = _multipart;
}
public View get_view() {
return _view;
}
public void set_view(View _view) {
this._view = _view;
}
}
如果有人知道如何解决这个问题，将非常感谢 tks