在用戶不知道的情況下發送電子郵件

我有2類郵件和mainactivity以及1個包含按鈕的xml文件，我想要的是當我點擊該按鈕時，應用程序將自動發送電子郵件到我在我的代碼中寫入的電子郵件地址，我想這個代碼：在用戶不知道的情況下發送電子郵件

郵件類：

package com.example.emailtest; 

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 = "lama chan"; // username 
    _pass = **********"; // password 
    _from = "[email protected]"; // email sent from 

    _to = new String[] {"[email protected]"}; 
    _subject = "hi"; // email subject 
    _body = "test"; // 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) { 
    _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); 

     // adding attachment 
     addAttachment("filename");//replace with file name u need 

     // Put parts in message 
     msg.setContent(_multipart); 

     // send email 
     Transport transport = session.getTransport("smtps"); 
     transport.connect(_host, 465,_user, _pass); 
     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"); 
    props.put("mail.smtp.starttls.enable", "true"); 

    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 É.. 
}

和我的mainActivity類別是：

package com.example.emailtest; 
import android.os.Bundle; 
import android.app.Activity; 
import android.content.Intent; 
import android.view.Menu; 
import android.view.View; 
import android.widget.Button; 
import android.widget.Toast; 

public class MainActivity extends Activity{ 
public Button bsend; 
public Mail m; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    bsend=(Button) findViewById(R.id.button1); 
    bsend.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View arg0) { 
      Mail mail = new Mail(); 
       try { 
        mail.send(); 
       } catch (Exception e) { 
        e.printStackTrace(); 
       }} 


    }); 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 

}

，但它沒有工作！當我點擊按鈕時，它會崩潰！

這是我在logcat中有：

12-13 06:59:49.961: W/dalvikvm(3207): Unable to resolve superclass of Lcom/example/emailtest/Mail; (823) 
    12-13 06:59:49.961: W/dalvikvm(3207): Link of class 'Lcom/example/emailtest/Mail;' failed 
    12-13 06:59:49.961: E/dalvikvm(3207): Could not find class 'com.example.emailtest.Mail', referenced from method com.example.emailtest.MainActivity$1.onClick 
    12-13 06:59:49.971: W/dalvikvm(3207): VFY: unable to resolve new-instance 711 (Lcom/example/emailtest/Mail;) in Lcom/example/emailtest/MainActivity$1; 
    12-13 06:59:49.971: D/dalvikvm(3207): VFY: replacing opcode 0x22 at 0x0000 
    12-13 06:59:49.981: W/dalvikvm(3207): Unable to resolve superclass of Lcom/example/emailtest/Mail; (823) 
    12-13 06:59:49.981: W/dalvikvm(3207): Link of class 'Lcom/example/emailtest/Mail;' failed 
    12-13 06:59:49.981: D/dalvikvm(3207): DexOpt: unable to opt direct call 0x13b3 at 0x02 in Lcom/example/emailtest/MainActivity$1;.onClick 
    12-13 06:59:50.421: D/gralloc_goldfish(3207): Emulator without GPU emulation detected. 
    12-13 07:01:37.911: D/AndroidRuntime(3207): Shutting down VM 
    12-13 07:01:37.911: W/dalvikvm(3207): threadid=1: thread exiting with uncaught exception (group=0xb4acab90) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): FATAL EXCEPTION: main 
    12-13 07:01:37.951: E/AndroidRuntime(3207): Process: com.example.emailtest, PID: 3207 
    12-13 07:01:37.951: E/AndroidRuntime(3207): java.lang.NoClassDefFoundError: com.example.emailtest.Mail 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at com.example.emailtest.MainActivity$1.onClick(MainActivity.java:24) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at android.view.View.performClick(View.java:4424) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at android.view.View$PerformClick.run(View.java:18383) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at android.os.Handler.handleCallback(Handler.java:733) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at android.os.Handler.dispatchMessage(Handler.java:95) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at android.os.Looper.loop(Looper.java:137) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at android.app.ActivityThread.main(ActivityThread.java:4998) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at java.lang.reflect.Method.invokeNative(Native Method) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at java.lang.reflect.Method.invoke(Method.java:515) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593) 
    12-13 07:01:37.951: E/AndroidRuntime(3207): at dalvik.system.NativeStart.main(Native Method)

有人可以幫助我:( 我不知道是什麼錯誤

來源

2013-12-13 Lama Tatwany

做代碼按鈕點擊OnCreate..instead .. –

清除IDE的緩存和重新生成構建文件 – OrhanC1

檢查了這一點。 http://stackoverflow.com/questions/2020088/sending-email-in-android-using-javamail-api-without-using-the-default-built-in-a – AndroidHacker

該類javax.mail.Authenticator屬於Java SE的！。

可能有一些超類Android不支持，或缺失。

驗證第一。

檢查這個答案

Send mail without Gmail using javax mail

來源

2013-12-13 12:15:03

好的，我會感謝你！ –

在用戶不知道的情況下發送電子郵件

回答

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