Question

我正在尝试使用Android中的Java邮件实现HTML格式的邮件。我想得到这样的结果：

enter image description here

当我查看我的GMAIL中的了望台发送的html格式时。我没有看到任何链接，但只有这种格式：

 [image: Lookout_logo]
 [image: Signal_flare_icon] Your battery level is really low, so we located

你的设备有信号闪光。

我正在尝试以下方法：

                    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");

        javax.mail.Session session = javax.mail.Session.getDefaultInstance(props, null);
        MimeMessage message = new MimeMessage(session);

        message.setFrom(new InternetAddress(from));

        InternetAddress[] toAddress = new InternetAddress[to.length];

        // To get the array of addresses
        for( int i=0; i < to.length; i++ )
        {
            // changed from a while loop
            toAddress[i] = new InternetAddress(to[i]);
        }

        message.setRecipients(Message.RecipientType.BCC, toAddress);

        message.setSubject(sub);
        //message.setText(body);
                    body = "<!DOCTYPE html><html><body><img src=\"http://en.wikipedia.org/wiki/Krka_National_Park#mediaviewer/File:Krk_waterfalls.jpg\">";
        message.setContent(body, "text/html; charset=utf-8"); 

        Transport transport = session.getTransport("smtp");
        transport.connect(host, from, pass);
        transport.sendMessage(message, message.getAllRecipients());
        transport.close();

当我查看使用上述代码发送的html格式时。我得到以下内容：

<!DOCTYPE html><html><body><img src="http://en.wikipedia.org/wiki/Krka_National_Park#mediaviewer/File:Krk_waterfalls.jpg>

如何确保用户无法查看任何html代码或URL链接，例如LOOKOUT发送的邮件？

谢谢！

Answer 1

将messageBody设置为text/html可在大多数情况下完美运行。很难混淆为什么它不适合你的情况。

因此，我正在通过发送html内容与您的email内部安卓程序一起使用。 android中有两个最常用的电子邮件用于发送电子邮件contents，其中你已经使用其中一个。我正在向你展示其他人的方式。

Mail.java ：用于设置邮件配置的属性

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.Message.RecipientType;
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.text.Spanned;


public class Mail extends javax.mail.Authenticator { 
private String _user; 
private String _pass; 

private String[] _to; 
public String[] getTo() {
return _to;
}

public void setTo(String[] _to) {
    this._to = _to;
}

private String _from; 

  public String getFrom() {
    return _from;
}

public void setFrom(String _from) {
    this._from = _from;
}

private String _port; 
  private String _sport; 

  private String _host; 

  private String _subject; 
  public String getSubject() {
    return _subject;
}

public void setSubject(String _subject) {
    this._subject = _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(RecipientType.TO, addressTo); 

      msg.setSubject(_subject); 
      msg.setSentDate(new Date()); 

      // setup message body 
      BodyPart messageBodyPart = new MimeBodyPart(); 
      messageBodyPart.setContent(_body,"text/html"); 
      _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; 
  }

public void setBody(Spanned fromHtml) {
    // TODO Auto-generated method stub
    this._body=_body;
} 

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

以下是如何在活动或片段中使用它。使用new MailTask(this).execute(); //use getActivity() inside fragments

致电

String username,password,sentto;// add your relevant username and password and sento
public class MailTask extends AsyncTask<String,Void,String>{
        public Context context;
        public ProgressDialog pDialog;
        public MailTask(Context c)
        {
            context = c; 
        }
        @Override
        protected String doInBackground(String... params) {
            /*
             * MAIL SENDING
             */
             Mail m = new Mail(username, password); 
              String[] toArr = {sentto}; 
              m.setTo(toArr);
              m.setFrom(username); 
              m.setSubject("Place Order | Rajvi Designing Application from an Android device.");
//            m.setBody("<html><body><b><p>Dear Sir,"
//                  + "  Following are the details added on Portfolio Application."
//                  + "  Name:"+ _name +"  Contact No:"+_contact +"  Address:"+_address+"</p><p> These is autogenerated mail. </p></b></body></html>"); 

              m.setBody("<html><body>"+MailBody.getBody(_name,_contact,_address,_orderdate)+"</body></html>");
              try { 
                  if(compressedPath!=null && compressedPath.length() > 0)
                m.addAttachment(compressedPath); 
                if(m.send()) { 
                    Log.e("MailApp", "Mail sent successfully!"); 
                } else { 
                    Log.e("MailApp", "Could not send email"); 
                } 
              } 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); 
              } 
            return "MailSent";
        }
        @Override
        protected void onPostExecute(String result) {
//          Toast.makeText(HomeActivity.this, "Mail Sent", Toast.LENGTH_SHORT).show();
            CustomToast.showToastMessage(PlaceOrderActivity.this, "Mail Sent");
//          submit.setEnabled(true);
//          submit.setText("Submit");
            pDialog.dismiss();
            clear();
        }

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            pDialog = new ProgressDialog(context);
            pDialog.setMessage("Sending...");
            pDialog.setIndeterminate(false);
            pDialog.setCancelable(false);
            pDialog.show();
        }
    }

附加HTML内容仅供参考 Mailbody.java ：用于为您的电子邮件内容生成HTML内容

public class MailBody {

    public static String getBody(String name,String contact,String address)
    {
        String str=null;

        str="<td style=\"padding:40px 20px;\" id=\"yui_3_13_0_ym1_1_1392534689432_2560\">\n" +
                "\t\t\t\t<table width=\"600\" cellpadding=\"0\" cellspacing=\"0\" id=\"yui_3_13_0_ym1_1_1392534689432_2559\">\n" +
                "\t\t\t\t\t<tbody id=\"yui_3_13_0_ym1_1_1392534689432_2558\"><tr id=\"yui_3_13_0_ym1_1_1392534689432_2600\">\n" +
                "\t\t\t\t\t\t<td align=\"left\" bgcolor=\"#272727\" style=\"padding:20px 10px;\" id=\"yui_3_13_0_ym1_1_1392534689432_2599\">\n" +
                "\t\t\t\t\t\t\t<a rel=\"nofollow\" target=\"_blank\" href=\"https://www.mailkitchen.com\" id=\"yui_3_13_0_ym1_1_1392534689432_2604\">\n" +
                "\t\t\t\t\t\t\t\t<img src=\"https://www.mailkitchen.com/images/logo-mk-en.png\" alt=\"MailKitchen\" title=\"MailKitchen\" border=\"0\" width=\"160\" height=\"30\" id=\"yui_3_13_0_ym1_1_1392534689432_2603\">\n" +
                "\t\t\t\t\t\t\t</a>\n" +
                "\t\t\t\t\t\t</td>\n" +
                "\t\t\t\t\t</tr>\n" +
                "\t\t\t\t\t<tr id=\"yui_3_13_0_ym1_1_1392534689432_2557\">\n" +
                "\t\t\t\t\t\t<td align=\"left\" bgcolor=\"#FFFFFF\" style=\"color:#6F6E6E;font-size:16px;font-family:Lato, Helvetica, Arial, sans-serif;\" id=\"yui_3_13_0_ym1_1_1392534689432_2556\">\n" +
                "\t\t\t\t\t\t\t<p align=\"center\" style=\"margin:30px 30px 0;\" id=\"yui_3_13_0_ym1_1_1392534689432_2555\">\n" +
                "\t\t\t\t\t\t\t\t Dear <span style=\"color:#A7CA01;font-size:26px;\" id=\"yui_3_13_0_ym1_1_1392534689432_2597\"> "+ name +",</span>\n" +
                "\t\t\t\t\t\t\t\t<br><br>\n" +
                "\t\t\t\t\t\t\t\t<b>Welcome to <span style=\"color:#A7CA01;\">R</span>ajvi Designing</b><br>\n" +
                "\t\t\t\t\t\t\t\t<b>and thank you for signing up on our Rajvi Designing Android Platform!</b>\n" +
                "\t\t\t\t\t\t\t</p>\n" +
                "\t\t\t\t\t\t\t<p style=\"margin:20px 30px 0;text-indent:20px;\">\n" +
                "\t\t\t\t\t\t\t\tLots of new features will be added in the coming weeks for creating, sending and tracking your Portfolio - so stay tuned!<br>\n" +
                "\t\t\t\t\t\t\t\tFrom time to time, we will send you a newsletter keeping you updated on our activities, new functionalities and features of our software suite.\n" +
                "\t\t\t\t\t\t\t</p>\n" +
                "\t\t\t\t\t\t\t<p style=\"margin:20px 30px 0;text-indent:20px;\">\n" +
                "\t\t\t\t\t\t\t\t\n" +
                "\t\t\t\t\t\t\t</p>\n" +
                "\t\t\t\t\t\t\t<ul style=\"margin:20px 30px 0 60px;padding:0;color:#A7CA01;\">\n" +
                "\t\t\t\t\t\t\t\t<li>\n" +
                "\t\t\t\t\t\t\t\t\tName :<a rel=\"nofollow\" target=\"_blank\" href=\"https://mail.mailkitchen.com/modeles/aide/mk.download.php?langue=en&amp;guide=2\" style=\"color:#A7CA01;text-decoration:none;\">"+name+"</a>\n" +
                "\t\t\t\t\t\t\t\t</li>\n" +
                "\t\t\t\t\t\t\t\t<li>\n" +
                "\t\t\t\t\t\t\t\t\tContact :<a rel=\"nofollow\" target=\"_blank\" href=\"https://mail.mailkitchen.com/modeles/aide/mk.download.php?langue=en&amp;guide=3\" style=\"color:#A7CA01;text-decoration:none;\">"+contact+"</a>\n" +
                "\t\t\t\t\t\t\t\t</li>\n" +
                "\t\t\t\t\t\t\t\t<li>\n" +
                "\t\t\t\t\t\t\t\t\tAddress :<a rel=\"nofollow\" target=\"_blank\" href=\"https://mail.mailkitchen.com/modeles/aide/mk.download.php?langue=en&amp;guide=6\" style=\"color:#A7CA01;text-decoration:none;\">"+address+"</a>\n" +
                "\t\t\t\t\t\t\t\t</li>\n" +
                "\t\t\t\t\t\t\t</ul>\n" +
                "\t\t\t\t\t\t\t<p align=\"center\" style=\"margin:20px 30px 30px;\">\n" +
                "\t\t\t\t\t\t\t\t<b>We wish you beautiful email campaigns!</b>\n" +
                "\t\t\t\t\t\t\t\t<br><br><br>\n" +
                "\t\t\t\t\t\t\t\t<b><i><span style=\"color:#A7CA01;\">(</span> <span style=\"color:#A7CA01;\">R</span>ajvi Designing Team <span style=\"color:#A7CA01;\">)</span></i></b>\n" +
                "\t\t\t\t\t\t\t</p>\n" +
                "\t\t\t\t\t\t</td>\n" +
                "\t\t\t\t\t</tr>\n" +
                "\t\t\t\t\t<tr>\n" +
                "\t\t\t\t\t\t<td align=\"center\" bgcolor=\"#EDEDED\" style=\"color:#6F6E6E;font-size:9px;font-family:Lato, Helvetica, Arial, sans-serif;padding:10px;\">\n" +
                "\t\t\t\t\t\t\tThis email has been sent by <a rel=\"nofollow\" target=\"_blank\" href=\"https://www.mailkitchen.com/\" style=\"text-decoration:underline;color:#A7CA01;\">Rajvi Design</a>, an Online Email Marketing Platform for Rajvi Design by Vikalp.<br>\n" +
                "\t\t\t\t\t\t\tPlease contact our customer service if you think that you’ve received this email by mistake.\n" +
                "\t\t\t\t\t\t</td>\n" +
                "\t\t\t\t\t</tr>\n" +
                "\t\t\t\t\t<tr>\n" +
                "\t\t\t\t\t\t<td bgcolor=\"#272727\" style=\"padding:10px;\">\n" +
                "\t\t\t\t\t\t\t<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\">\n" +
                "\t\t\t\t\t\t\t\t<tbody><tr>\n" +
                "\t\t\t\t\t\t\t\t\t<td width=\"30%\" align=\"right\" style=\"padding-right:10px;border-right:2px solid #4E4E4E;\">\n" +
                "\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" target=\"_blank\" href=\"https://www.mailkitchen.com\">\n" +
                "\t\t\t\t\t\t\t\t\t\t\t<img src=\"https://www.mailkitchen.com/images/logo-mk-gris-en.png\" alt=\"MailKitchen\" title=\"MailKitchen\" border=\"0\" width=\"110\" height=\"30\">\n" +
                "\t\t\t\t\t\t\t\t\t\t</a>\n" +
                "\t\t\t\t\t\t\t\t\t</td>\n" +
                "\t\t\t\t\t\t\t\t\t<td align=\"left\" style=\"padding-left:10px;color:#6F6E6E;font-size:12px;font-family:Lato, Helvetica, Arial, sans-serif;\">\n" +
                "\t\t\t\t\t\t\t\t\t\tRajvi<span style=\"color:#A7CA01;\">D </span>esign<span style=\"color:#FFFFF;\"> (079) 66154709</span> <br>\n" +
                "\t\t\t\t\t\t\t\t\t\t3,Near Giriraj 2 Near Vageshwari Bus Stop, Gopal Nagar Railway Station Road, Chandlodiya, Ahmedabad - 382481" +
                "\t\t\t\t\t\t\t\t\t</td>\n" +
                "\t\t\t\t\t\t\t\t</tr>\n" +
                "\t\t\t\t\t\t\t</tbody></table>\n" +
                "\t\t\t\t\t\t</td>\n" +
                "\t\t\t\t\t</tr>\n" +
                "\t\t\t\t</tbody></table>\n" +
                "\t\t\t</td>";      

        return str;
    }

Answer 2

您可以简化对message.setText的setContent调用（body，＆＃34; html＆＃34;，＆＃34; utf-8＆＃34;）; 除此之外，我不明白你的问题是什么。听起来你正好看到了你发送的html。如果你想看到不同的东西，发送不同的东西。或者是你的邮件阅读器中没有正确显示html的问题？如果要复制顶部的示例消息显示，则需要查看消息中的实际html代码。使用＆＃34;显示为原始＆＃34; Gmail中的选项。

Answer 3

为什么你不能使用HtmlEmail？

   import org.apache.commons.mail.DefaultAuthenticator;
   import org.apache.commons.mail.EmailException;
   import org.apache.commons.mail.HtmlEmail;

和

   HtmlEmail htmlEmail = new HtmlEmail();
   htmlEmail.setHostName("smtp.gmail.com");
   htmlEmail.setSmtpPort(587);
   htmlEmail.setDebug(true);
   htmlEmail.setAuthenticator(new DefaultAuthenticator("userId", "password"));
   htmlEmail.setTLS(true);
   htmlEmail.addTo("recipient@gmail.com", "recipient");
   htmlEmail.setFrom("sender@gmail.com", "sender");
   htmlEmail.setSubject("Send HTML email with body content from URI");
   htmlEmail.setHtmlMsg(responseBody);
   htmlEmail.send();

参考 http://www.mysamplecode.com/2012/09/send-html-email-in-java-using-url-as.html了解更多信息。

Answer 4

您需要发送包含2种不同内容类型的多部分电子邮件：

text / plain for text view
用于HTML视图的text / html

我已在"Why Multi-Part Email is Important"下贴了一个示例（由Litmus发布电子邮件的人{{}}发布），这应该会有所帮助

X-sender: <sender@sendersdomain.com>
X-receiver: <somerecipient@recipientdomain.com>
From: "Senders Name" <sender@sendersdomain.com>
To: "Recipient Name" <somerecipient@recipientdomain.com>
Message-ID: <5bec11c119194c14999e592feb46e3cf@sendersdomain.com>
Date: Sat, 24 Sep 2005 15:06:49 -0400
Subject: Sample Multi-Part

MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_DC7E1BB5_1105_4DB3_BAE3_2A6208EB099D"

------=_NextPart_DC7E1BB5_1105_4DB3_BAE3_2A6208EB099D

Content-type: text/plain; charset=iso-8859-1

Content-Transfer-Encoding: quoted-printable

Sample Text Content

------=_NextPart_DC7E1BB5_1105_4DB3_BAE3_2A6208EB099D

Content-type: text/html; charset=iso-8859-1

Content-Transfer-Encoding: quoted-printable

<html>

<head>

</head>

<body>

<div style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sample HTML =

Content</div>

</body>

</html>

------=_NextPart_DC7E1BB5_1105_4DB3_BAE3_2A6208EB099D--

在android中使用Java邮件的HTML格式

4 个答案: