I have the following code which is attempting to send an email in background. I have made use of a textview to see the exception. However, although nothing is being shown in the textview, I also cannot receive the mail. So I am not sure whether the mail has been delivered successfully or not. Can anyone give help to me?
Based on the suggestions, I have modified my program as following:
new Sender.java
public class Sender extends Activity {
Button Send;
TextView text;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sender);
Send = (Button) findViewById(R.id.mail);
text = (TextView) findViewById(R.id.textView1);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
Send.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new SendMail().execute();
}
});
}
private class SendMail extends AsyncTask<String, Void, String>
{
ProgressDialog pd = null;
String error = null;
Integer result;
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
pd = new ProgressDialog(Sender.this);
pd.setTitle("Uploading");
pd.setMessage("Uploading logs. Please wait");
pd.setCancelable(false);
pd.show();
}
@Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
MailSender sender = new MailSender("me@gmail.com", "password");
String[] toAddress = {"me@gmail.com"};
sender.setTo(toAddress);
sender.setFrom("me@gmail.com");
sender.setSubject("Test mail");
sender.setBody("This is the mail body");
try {
if(sender.send()) {
System.out.println("Message sent");
result = 1;
} else {
result = 2;
}
} catch (Exception e) {
error = e.getMessage();
Log.e("SendMail", e.getMessage(), e);
}
result = 3;
return null;
}
protected void onPostExecute() {
pd.dismiss();
if(error!=null) {
text.setText(error);
}
if(result==1) {
Toast.makeText(Sender.this,
"Email was sent successfully.", Toast.LENGTH_LONG)
.show();
} else if(result==2) {
Toast.makeText(Sender.this,
"Email was not sent.", Toast.LENGTH_LONG).show();
} else if(result==3) {
Toast.makeText(Sender.this,
"There was a problem sending the email.",
Toast.LENGTH_LONG).show();
}
}
}
}
new MailSender.java
public class MailSender extends Authenticator {
private String user;
private String password;
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 multi;
public MailSender(){
host = "smtp.gmail.com";
port = "465";
sport = "465";
user = "";
password = "";
from = "";
subject = "";
body = "";
debuggable = false;
auth = true;
multi = 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/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 MailSender(String user, String password){
this();
user = user;
password = password;
}
public boolean send() throws Exception {
Properties props = setProperties();
try{
Session session = Session.getInstance(props, this);
session.setDebug(true);
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());
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(body);
multi.addBodyPart(messageBodyPart);
msg.setContent(multi);
Transport transport = session.getTransport("smtps");
transport.connect(host, 465, user, password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
return true;
} catch (Exception e) {
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);
multi.addBodyPart(messageBodyPart);
}
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user, password);
}
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;
}
public void setTo(String[] toAddress) {
this.to = toAddress;
}
public void setFrom(String fromAddress) {
this.from = fromAddress;
}
public void setSubject(String subject) {
this.subject = subject;
}
public void setBody(String body) {
this.body = body;
}
}
After I changed the programm, when I click the button, it stops at pre-execution state, displaying “Uploading logs. Please wait”. Mail cannot be sent out.
And in error log:
08-14 16:26:29.872: I/System.out(22439): DEBUG: setDebug: JavaMail version 1.4.1
08-14 16:26:29.888: I/System.out(22439): DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc.,1.4.1]
08-14 16:26:29.896: I/System.out(22439): DEBUG SMTP: useEhlo true, useAuth false
08-14 16:26:29.896: I/System.out(22439): DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 465, isSSL true
08-14 16:26:30.568: I/System.out(22439): 220 mx.google.com ESMTP nq6sm593334pbc.56
08-14 16:26:30.568: I/System.out(22439): DEBUG SMTP: connected to host "smtp.gmail.com", port: 465
08-14 16:26:30.568: I/System.out(22439): EHLO localhost
08-14 16:26:30.716: I/System.out(22439): 250-mx.google.com at your service, [202.155.209.250]
08-14 16:26:30.716: I/System.out(22439): 250-SIZE 35882577
08-14 16:26:30.716: I/System.out(22439): 250-8BITMIME
08-14 16:26:30.716: I/System.out(22439): 250-AUTH LOGIN PLAIN XOAUTH
08-14 16:26:30.716: I/System.out(22439): 250 ENHANCEDSTATUSCODES
08-14 16:26:30.716: I/System.out(22439): DEBUG SMTP: Found extension "SIZE", arg "35882577"
08-14 16:26:30.716: I/System.out(22439): DEBUG SMTP: Found extension "8BITMIME", arg ""
08-14 16:26:30.716: I/System.out(22439): DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH"
08-14 16:26:30.716: I/System.out(22439): DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
08-14 16:26:30.716: I/System.out(22439): DEBUG SMTP: Attempt to authenticate
08-14 16:26:30.724: I/System.out(22439): AUTH LOGIN
08-14 16:26:30.872: I/System.out(22439): 334 VXNlcm5hbWU6
08-14 16:26:30.872: I/System.out(22439):
08-14 16:26:31.021: I/System.out(22439): 334 UGFzc3dvcmQ6
08-14 16:26:31.021: I/System.out(22439):
08-14 16:26:31.169: I/System.out(22439): 334 UGFzc3dvcmQ6
08-14 16:26:31.177: I/System.out(22439): DEBUG SMTP: useEhlo true, useAuth false
08-14 16:26:31.177: I/System.out(22439): DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 465, isSSL true
08-14 16:26:31.552: D/dalvikvm(22439): GC_CONCURRENT freed 341K, 4% free 11097K/11527K, paused 13ms+3ms, total 37ms
08-14 16:26:31.794: I/System.out(22439): 220 mx.google.com ESMTP st6sm593199pbc.58
08-14 16:26:31.794: I/System.out(22439): DEBUG SMTP: connected to host "smtp.gmail.com", port: 465
08-14 16:26:31.794: I/System.out(22439): EHLO localhost
08-14 16:26:31.943: I/System.out(22439): 250-mx.google.com at your service, [202.155.209.250]
08-14 16:26:31.943: I/System.out(22439): 250-SIZE 35882577
08-14 16:26:31.943: I/System.out(22439): 250-8BITMIME
08-14 16:26:31.943: I/System.out(22439): 250-AUTH LOGIN PLAIN XOAUTH
08-14 16:26:31.943: I/System.out(22439): 250 ENHANCEDSTATUSCODES
08-14 16:26:31.950: I/System.out(22439): DEBUG SMTP: Found extension "SIZE", arg "35882577"
08-14 16:26:31.950: I/System.out(22439): DEBUG SMTP: Found extension "8BITMIME", arg ""
08-14 16:26:31.950: I/System.out(22439): DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH"
08-14 16:26:31.950: I/System.out(22439): DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
08-14 16:26:31.950: I/System.out(22439): DEBUG SMTP: Attempt to authenticate
08-14 16:26:31.950: I/System.out(22439): AUTH LOGIN
08-14 16:26:32.099: I/System.out(22439): 334 VXNlcm5hbWU6
08-14 16:26:32.099: I/System.out(22439):
08-14 16:26:32.247: I/System.out(22439): 334 UGFzc3dvcmQ6
08-14 16:26:32.247: I/System.out(22439):
08-14 16:26:32.403: I/System.out(22439): 334 UGFzc3dvcmQ6
08-14 16:27:00.200: I/Choreographer(22439): Skipped 35 frames! The application may be doing too much work on its main thread.
As it does not work, so I try to hide the function onpreexecute, but nothing changes, mail cannot be sent, here are the messages in error log:
08-14 16:31:18.958: I/System.out(22759): DEBUG: setDebug: JavaMail version 1.4.1
08-14 16:31:18.974: I/System.out(22759): DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc.,1.4.1]
08-14 16:31:18.974: I/System.out(22759): DEBUG SMTP: useEhlo true, useAuth false
08-14 16:31:18.974: I/System.out(22759): DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 465, isSSL true
08-14 16:31:19.739: I/System.out(22759): 220 mx.google.com ESMTP og7sm597805pbb.62
08-14 16:31:19.739: I/System.out(22759): DEBUG SMTP: connected to host "smtp.gmail.com", port: 465
08-14 16:31:19.739: I/System.out(22759): EHLO localhost
08-14 16:31:19.888: I/System.out(22759): 250-mx.google.com at your service, [202.155.209.250]
08-14 16:31:19.888: I/System.out(22759): 250-SIZE 35882577
08-14 16:31:19.888: I/System.out(22759): 250-8BITMIME
08-14 16:31:19.888: I/System.out(22759): 250-AUTH LOGIN PLAIN XOAUTH
08-14 16:31:19.888: I/System.out(22759): 250 ENHANCEDSTATUSCODES
08-14 16:31:19.888: I/System.out(22759): DEBUG SMTP: Found extension "SIZE", arg "35882577"
08-14 16:31:19.888: I/System.out(22759): DEBUG SMTP: Found extension "8BITMIME", arg ""
08-14 16:31:19.888: I/System.out(22759): DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH"
08-14 16:31:19.888: I/System.out(22759): DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
08-14 16:31:19.888: I/System.out(22759): DEBUG SMTP: Attempt to authenticate
08-14 16:31:19.896: I/System.out(22759): AUTH LOGIN
08-14 16:31:20.044: I/System.out(22759): 334 VXNlcm5hbWU6
08-14 16:31:20.044: I/System.out(22759):
08-14 16:31:20.185: I/System.out(22759): 334 UGFzc3dvcmQ6
08-14 16:31:20.185: I/System.out(22759):
08-14 16:31:20.341: I/System.out(22759): 334 UGFzc3dvcmQ6
08-14 16:31:20.341: I/System.out(22759): DEBUG SMTP: useEhlo true, useAuth false
08-14 16:31:20.341: I/System.out(22759): DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 465, isSSL true
08-14 16:31:20.786: I/System.out(22759): 220 mx.google.com ESMTP og7sm597845pbb.62
08-14 16:31:20.786: I/System.out(22759): DEBUG SMTP: connected to host "smtp.gmail.com", port: 465
08-14 16:31:20.786: I/System.out(22759): EHLO localhost
08-14 16:31:20.935: I/System.out(22759): 250-mx.google.com at your service, [202.155.209.250]
08-14 16:31:20.935: I/System.out(22759): 250-SIZE 35882577
08-14 16:31:20.935: I/System.out(22759): 250-8BITMIME
08-14 16:31:20.935: I/System.out(22759): 250-AUTH LOGIN PLAIN XOAUTH
08-14 16:31:20.935: I/System.out(22759): 250 ENHANCEDSTATUSCODES
08-14 16:31:20.943: I/System.out(22759): DEBUG SMTP: Found extension "SIZE", arg "35882577"
08-14 16:31:20.943: I/System.out(22759): DEBUG SMTP: Found extension "8BITMIME", arg ""
08-14 16:31:20.943: I/System.out(22759): DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH"
08-14 16:31:20.943: I/System.out(22759): DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
08-14 16:31:20.943: I/System.out(22759): DEBUG SMTP: Attempt to authenticate
08-14 16:31:20.943: I/System.out(22759): AUTH LOGIN
08-14 16:31:21.091: I/System.out(22759): 334 VXNlcm5hbWU6
08-14 16:31:21.091: I/System.out(22759):
08-14 16:31:21.239: I/System.out(22759): 334 UGFzc3dvcmQ6
08-14 16:31:21.239: I/System.out(22759):
08-14 16:31:21.380: I/System.out(22759): 334 UGFzc3dvcmQ6
08-14 16:31:49.357: W/IInputConnectionWrapper(22759): clearMetaKeyStates on inactive InputConnection
I have already carry out the send operation in AsyncTask, may I ask why it still does not work?
as the log shows, you are calling network related tasks from main UI thread. You have to use
AsyncTaskfor these communications. and remove theStrictModeby doingAlso see my answer in this post regarding the usage of JavaMail API.
EDIT: Added the code inline here
package com.max.mactest;
updated
MailSender