[英]sending email without user interaction android
我試圖在沒有用戶交互的情況下發送電子郵件 每件事都有效,直到發送部分。
這是我正在使用的Gmailsender類中的sendemail功能
public void sendEmail() throws MessagingException
{
Log.i("check","start");
String host = "smtp.gmail.com";
String from = "blabla@gmail.com"; //sender email, this is our website email
String pass = "blablabla"; //password of sender email
Properties props = System.getProperties();
props.put("mail.smtp.starttls.enable", "true"); // added this line
props.put("mail.smtp.host", host);
props.put("mail.smtp.user", from);
props.put("mail.smtp.password", pass);
props.put("mail.smtp.port", "587");
props.put("mail.smtp.auth", "true");
Log.i("check","done pops ");
//creating session
Session session = Session.getDefaultInstance(props, null);
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
Log.i("check","done sessions ");
InternetAddress toAddress;
toAddress = new InternetAddress(to);
message.addRecipient(Message.RecipientType.TO, toAddress);
Log.i("check","add recipante ");
message.setSubject(subject);
message.setText("This is my app");
Log.i("check","transport");
Transport transport = session.getTransport("smtp");
//connecting..
Log.i("check","connecting");
transport.connect(host, from, pass);
//sending...
Log.i("check","wana send");
transport.sendMessage(message, message.getAllRecipients());
transport.close();
Log.i("check","sent");
}
日志“想發送”沒有出現..
我從gmailSender創建對象的主要活動包含以下代碼:
send = (Button) this.findViewById(R.id.button1);
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
try {
GMailSender sender = new GMailSender("blabla@gmail.com", "blablabla");
Log.e("check", "test 1");
sender.sendEmail() ;
Log.e(DEBUG_TAG, "test 2");
} catch (Exception e) {
Log.e(DEBUG_TAG, "test 3"); }
我得到“測試3”日志,這意味着發生了異常..
結果是電子郵件沒有發送,應用程序被卡住......我不知道有什么不對..
注意:我添加了Internet權限+我添加了jar文件
logcat是
12-25 12:55:00.774: E/check(1350): test 1
12-25 12:55:00.774: I/check(1350): start
12-25 12:55:00.774: I/check(1350): done pops
12-25 12:55:00.774: I/check(1350): done sessions
12-25 12:55:00.774: I/check(1350): add recipante
12-25 12:55:00.779: I/check(1350): transport
12-25 12:55:00.789: I/check(1350): connecting
12-25 12:55:00.789: E/check(1350): test 3
這是check標簽的整個logcat:
12-25 13:20:18.698: E/check(5547): test 1
12-25 13:20:18.698: I/check(5547): start
12-25 13:20:18.698: I/check(5547): done pops
12-25 13:20:18.723: I/check(5547): done sessions
12-25 13:20:18.723: I/check(5547): add recipante
12-25 13:20:18.723: I/check(5547): transport
12-25 13:20:18.733: I/check(5547): connecting
12-25 13:20:18.758: E/check(5547): [Ljava.lang.StackTraceElement;@4193bb00
12-25 13:20:18.758: E/check(5547): android.os.NetworkOnMainThreadException
12-25 13:20:18.758: E/check(5547): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
12-25 13:20:18.758: E/check(5547): at java.net.InetAddress.lookupHostByName(InetAddress.java:391)
12-25 13:20:18.758: E/check(5547): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
12-25 13:20:18.758: E/check(5547): at java.net.InetAddress.getByName(InetAddress.java:295)
12-25 13:20:18.758: E/check(5547): at java.net.InetSocketAddress.<init>(InetSocketAddress.java:105)
12-25 13:20:18.758: E/check(5547): at java.net.InetSocketAddress.<init>(InetSocketAddress.java:90)
12-25 13:20:18.758: E/check(5547): at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:233)
12-25 13:20:18.758: E/check(5547): at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
12-25 13:20:18.758: E/check(5547): at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1359)
12-25 13:20:18.758: E/check(5547): at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412)
12-25 13:20:18.758: E/check(5547): at javax.mail.Service.connect(Service.java:288)
12-25 13:20:18.758: E/check(5547): at javax.mail.Service.connect(Service.java:169)
12-25 13:20:18.758: E/check(5547): at com.example.sendmail.GMailSender.sendEmail(GMailSender.java:100)
12-25 13:20:18.758: E/check(5547): at com.example.sendmail.MailSenderActivity$1.onClick(MailSenderActivity.java:31)
12-25 13:20:18.758: E/check(5547): at android.view.View.performClick(View.java:3627)
12-25 13:20:18.758: E/check(5547): at android.view.View$PerformClick.run(View.java:14329)
12-25 13:20:18.758: E/check(5547): at android.os.Handler.handleCallback(Handler.java:605)
12-25 13:20:18.758: E/check(5547): at android.os.Handler.dispatchMessage(Handler.java:92)
12-25 13:20:18.758: E/check(5547): at android.os.Looper.loop(Looper.java:137)
12-25 13:20:18.758: E/check(5547): at android.app.ActivityThread.main(ActivityThread.java:4511)
12-25 13:20:18.758: E/check(5547): at java.lang.reflect.Method.invokeNative(Native Method)
12-25 13:20:18.758: E/check(5547): at java.lang.reflect.Method.invoke(Method.java:511)
12-25 13:20:18.758: E/check(5547): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:980)
12-25 13:20:18.758: E/check(5547): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)
12-25 13:20:18.758: E/check(5547): at dalvik.system.NativeStart.main(Native Method)
使用專為Android編寫的JavaMail API 。
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;
}
// more of the getters and setters …..
}
下面是如何在Android活動中使用Mail包裝器的示例。
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
Button addImage = (Button) findViewById(R.id.send_email);
addImage.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Mail m = new Mail("gmailusername@gmail.com", "password");
String[] toArr = {"bla@bla.com", "lala@lala.com"};
m.setTo(toArr);
m.setFrom("wooo@wooo.com");
m.setSubject("This is an email sent using my Mail JavaMail wrapper from an Android device.");
m.setBody("Email body.");
try {
m.addAttachment("/sdcard/filelocation");
if(m.send()) {
Toast.makeText(MailApp.this, "Email was sent successfully.", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(MailApp.this, "Email was not sent.", Toast.LENGTH_LONG).show();
}
} catch(Exception e) {
//Toast.makeText(MailApp.this, "There was a problem sending the email.", Toast.LENGTH_LONG).show();
Log.e("MailApp", "Could not send email", e);
}
}
});
}
I am getting the "test 3" log which means that the exception happened..
The result is that the email is not sent and the app is stuck... I dont know what is the wrong..
盲目假設,只需將您的郵件發送到AsyncTask
。 我認為你的例外的原因是NetworkOnMainThread ..
同時發布Exception的完整堆棧跟蹤 。 所以我們可以進一步幫助你..
更新:
我認為這行transport.connect(host, from, pass);
來自sendEmail()
給你異常。
如果使用“smtp.gmail.com”作為默認的smtp服務器,則發出警告。
由於他們過於熱心的“可疑活動”政策,Google會強制您經常更改關聯的電子郵件帳戶密碼。 實質上,它在短時間內將來自不同國家的重復smtp請求視為“可疑活動”。 因為他們認為您(電子郵件帳戶持有人)一次只能在一個國家/地區。
當谷歌系統檢測到“可疑活動”時,它將阻止更多電子郵件,直到您更改密碼。 由於您將密碼硬編碼到應用程序中,因此每次發生這種情況時都必須重新發布應用程序,這並不理想。 這對我來說每周發生3次,我甚至將密碼存儲在另一台服務器上,並且每次google強制我更改密碼時動態獲取密碼。
因此,我建議使用眾多免費smtp提供程序之一而不是“smtp.gmail.com”來避免此安全問題。 使用相同的代碼,但將“smtp.gmail.com”更改為新的smtp轉發主機。
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