android - 使用带有 smtp 但没有 SSL 的 JavaMail API 在 android 中发送电子邮件

Question

我已经经历了this问题，它在使用 SSL 的情况下运行良好

我也试过this一个，它以某种方式适合我的需要，但在我的情况下不起作用。

我也读过this主题，但如果不在我的代码中使用 SSL，仍然无法发送电子邮件。

每次我发送邮件时，它都会显示“异常 554，邮件被拒绝”

我真正需要的是使用::

邮件主机:"smtpout.secureserver.net"

端口号:25

谢谢，

有可能。

Answer 1

首先在你的项目中使用Mail.jar、activation.jar、Additional.jar文件上传

使用这个邮件类

package com.technosoft.AkashEmailAddress;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import java.util.Properties;
import javax.activation.CommandMap;
import javax.activation.DataHandler;
import javax.activation.DataSource;
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 android.util.Log;


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); 
     DataHandler handler = new DataHandler(new ByteArrayDataSource(_body.getBytes(), "text/plain")); 
      MimeMessage msg = new MimeMessage(session); 

      msg.setFrom(new InternetAddress(_from)); 
      msg.setDataHandler(handler);
      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); 
      Log.v("mas", "Email was  send");
      return true; 
    } else { 
         Log.v("mas", "Email was  not send");
      return false; 

    } 
  } 
  public class ByteArrayDataSource implements DataSource {   
      private byte[] data;   
      private String type;   

      public ByteArrayDataSource(byte[] data, String type) {   
          super();   
          this.data = data;   
          this.type = type;   
      }   

      public ByteArrayDataSource(byte[] data) {   
          super();   
          this.data = data;   
      }   

      public void setType(String type) {   
          this.type = type;   
      }   

      public String getContentType() {   
          if (type == null)   
              return "application/octet-stream";   
          else  
              return type;   
      }   

      public InputStream getInputStream() throws IOException {   
          return new ByteArrayInputStream(data);   
      }   

      public String getName() {   
          return "ByteArrayDataSource";   
      }   

      public OutputStream getOutputStream() throws IOException {   
          throw new IOException("Not Supported");   
      }   
  }   

  @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) {
    // TODO Auto-generated method stub
    this._to=toArr;
}

public void setFrom(String string) {
    // TODO Auto-generated method stub
    this._from=string;
}

public void setSubject(String string) {
    // TODO Auto-generated method stub
    this._subject=string;
} 

  // more of the getters and setters ….. 
}  

邮件类在主类中使用了 send() 方法

Main class extends Activity{
    Mail m=new Mail("DefultUserID@gmail.com","XXXXXXX");
    @SuppressWarnings("static-access")
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.email);
 String[] toArr = {"UserEmailID_1@gmail.com","UserEmail_ID@Yahoo.co.in"}; 
        m.setTo(toArr);
        m.setFrom("AKASH"); 
        m.setSubject("Your Subject"); 
        m.setBody("Your Message body");

        try {
            boolean i= m.send();
            if(i==true){
                Toast.makeText(getApplicationContext(),"Email was sent successfully ",2000).show();

            }
            else
            {
                Toast.makeText(getApplicationContext(),"Email was not sent successfully ",2000).show();

            }

        } catch (Exception e2) {
            // TODO Auto-generated catch block
            e2.printStackTrace();
        }

}
}