在Android中以精美的形式发送电子邮件

作者: 开心人开发世界 | 来源:发表于2019-12-05 20:41 被阅读0次

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Springboot 之 JavaMailSender发送电子邮

在本文中，我们将发送一封电子邮件，其中包含精心设计的表单以显示与邮件一起发送的数据。

众所周知，对我们所有人来说，使用电子邮件已经变得十分必要和重要。有各种电子邮件服务提供商，例如Yahoo，Outlook，iCloud和Gmail等。这些技术巨头为每个用户提供免费的电子邮件服务。如果您使用互联网，则无法忽略它，因为每当您访问任何网站/应用程序以在线购买/销售产品时，都可以。首先，您必须在这些网站/应用程序上注册才能证明您在现实世界中的身份。

在本文中，我们将学习如何使用JavaMail API将Gmail收件箱中的电子邮件发送到指定的电子邮件地址。我们将发送常见的用户数据，例如用户名，电子邮件地址，手机号码。等等

因此，让我们开始吧。

步骤1

首先，创建空的android项目，并在根目录中创建名称为MailSender.java和JSSEProvider.java的Java类。
现在，我们需要将Java Mail API jar文件导入到我们的项目中。从此处下载jar文件，解压缩并将其粘贴到libs文件夹中。
如果您的项目无法识别您的库，请重新启动Android Studio。
右键单击app-> New-> Folder-> Assets Folder，创建资产文件夹。我们将HTML文件放在此处，以在Gmail上显示数据。
要发送电子邮件，您的应用将需要互联网连接，因此请在AndroidManifest.xml文件中声明此权限。

<uses-permission android:name="android.permission.INTERNET"/>

第2步

在MailSender.java类中创建一些实例变量

// change this host name accordingly
private String mailhost = "webmail.xyz.in";
private String user;
private String password;
private Session session;
Context context;
private Multipart _multipart = new MimeMultipart();

现在，在MailSender.java文件中创建静态块以调用JSSEProvider.java类。JSSEProvider用于链接SSLContext，X509的KeyManagerFactory，X509的TrustManagerFactory和AndroidCAstore的修改版本。

static {
    Security.addProvider(new JSSEProvider());
}

创建参数化的构造函数（传递上下文，“发件人电子邮件ID”和“密码”等）以初始化实例变量，并创建Properties类的对象以在构造函数内设置属性。在其中传递上下文，用户电子邮件ID和密码。看一下构造函数代码。

public MailSender(Context context,String user, String password) {
    this.user = user;
    this.password = password;
    this.context = context;

    Properties props = new Properties();
    props.setProperty("mail.transport.protocol", "smtp");
    props.setProperty("mail.host", mailhost);
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.port", "465");
    props.put("mail.smtp.socketFactory.port", "465");
    props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
    props.put("mail.smtp.socketFactory.fallback", "false");
    props.setProperty("mail.smtp.quitwait", "false");

    session = Session.getDefaultInstance(props, this);
}

创建密码验证器方法以验证您的帐户。

protected PasswordAuthentication getPasswordAuthentication() {
    return new PasswordAuthentication(user, password);
}

最后，创建用户定义的方法sendUserDetailWithImage（）以将数据发送到邮件。下面的代码从assets文件夹中提取user_profile.html，将其转换为缓冲区，然后从缓冲区中读取它，最后将其转换为字符串对象，用实际的用户名替换关键字“ $username$ ”等等。请参阅完整的sendUserDetailWithImage（）代码。

public synchronized void sendUserDetailWithImage(String subject, String body,
                                               String sender, String recipients,String username,String email,String mobile,String dob,String age,String address,String profilePic ) throws Exception {
        MimeMessage message = new MimeMessage(session);
        DataHandler handler = new DataHandler(new ByteArrayDataSource(body.getBytes(), "text/plain"));
        message.setFrom(new InternetAddress("no-reply@astromyntra.in"));
        message.setSender(new InternetAddress(sender));
        message.setSubject(subject);
        message.setDataHandler(handler);

        BodyPart messageBodyPart = new MimeBodyPart();
        InputStream is = context.getAssets().open("user_profile.html");
        int size = is.available();
        byte[] buffer = new byte[size];
        is.read(buffer);
        is.close();
        String str = new String(buffer);
        str =str.replace("$$headermessage$$","You have got a new user.");
        str=str.replace("$$username$$", username);
        str=str.replace("$$email$$", email);
        str=str.replace("$$mobile$$", mobile);
        str=str.replace("$$dob$$",dob);
        str=str.replace("$$age$$",age);
        str=str.replace("$$address$$", address);
        messageBodyPart.setContent(str,"text/html; charset=utf-8");

        _multipart.addBodyPart(messageBodyPart);

        // Put parts in message

        message.setContent(_multipart);


        if (recipients.indexOf(',') > 0)
            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));
        else
            message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));

        Transport.send(message);
    }

UserDataSender.java

看完整的MainSender.java代码

package com.emailsender;

import android.content.Context;

import java.io.InputStream;
import java.security.Security;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.mail.BodyPart;
import javax.mail.Message;
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 javax.mail.util.ByteArrayDataSource;

public class MailSender extends javax.mail.Authenticator  {

    // change this host name
    private String mailhost = "webmail.xyz.in";
    private String user;
    private String password;
    private Session session;
    Context context;
    private Multipart _multipart = new MimeMultipart();

    static {
        Security.addProvider(new JSSEProvider());
    }

    public MailSender(Context context,String user, String password) {
        this.user = user;
        this.password = password;
        this.context = context;

        Properties props = new Properties();
        props.setProperty("mail.transport.protocol", "smtp");
        props.setProperty("mail.host", mailhost);
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.port", "465");
        props.put("mail.smtp.socketFactory.port", "465");
        props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.put("mail.smtp.socketFactory.fallback", "false");
        props.setProperty("mail.smtp.quitwait", "false");

        session = Session.getDefaultInstance(props, this);
    }

    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(user, password);
    }

    public synchronized void sendUserDetailWithImage(String subject, String body,
                                               String sender, String recipients,String username,String email,String mobile,String dob,String age,String address,String profilePic ) throws Exception {
        MimeMessage message = new MimeMessage(session);
        DataHandler handler = new DataHandler(new ByteArrayDataSource(body.getBytes(), "text/plain"));
        message.setFrom(new InternetAddress("no-reply@xyz.in"));
        message.setSender(new InternetAddress(sender));
        message.setSubject(subject);
        message.setDataHandler(handler);

        BodyPart messageBodyPart = new MimeBodyPart();
        InputStream is = context.getAssets().open("user_profile.html");
        int size = is.available();
        byte[] buffer = new byte[size];
        is.read(buffer);
        is.close();
        String str = new String(buffer);
        str =str.replace("$$headermessage$$","You have got a new user.");
        str=str.replace("$$username$$", username);
        str=str.replace("$$email$$", email);
        str=str.replace("$$mobile$$", mobile);
        str=str.replace("$$dob$$",dob);
        str=str.replace("$$age$$",age);
        str=str.replace("$$address$$", address);
        messageBodyPart.setContent(str,"text/html; charset=utf-8");
        _multipart.addBodyPart(messageBodyPart);
        message.setContent(_multipart);
        
        if (recipients.indexOf(',') > 0)
            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));
        else
            message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));

        Transport.send(message);
    }
}

MailSender.java

第三步

要在表单中显示数据，请在assets文件夹内创建名为user_profile.html的HTML文件，然后粘贴以下代码。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title></title>

    <style type="text/css">@media only screen and (max-width:480px){body,table,td,p,a,li,blockquote{-webkit-text-size-adjust:none !important}body{width:100% !important;min-width:100% !important}td[id=bodyCell]{padding:10px !important}table.kmMobileHide{display:none !important}table[class=kmTextContentContainer]{width:100% !important}table[class=kmBoxedTextContentContainer]{width:100% !important}td[class=kmImageContent]{padding-left:0 !important;padding-right:0 !important}img[class=kmImage]{width:100% !important}td.kmMobileStretch{padding-left:0 !important;padding-right:0 !important}table[class=kmSplitContentLeftContentContainer],table[class=kmSplitContentRightContentContainer],table[class=kmColumnContainer],td[class=kmVerticalButtonBarContentOuter] table[class=kmButtonBarContent],td[class=kmVerticalButtonCollectionContentOuter] table[class=kmButtonCollectionContent],table[class=kmVerticalButton],table[class=kmVerticalButtonContent]{width:100% !important}td[class=kmButtonCollectionInner]{padding-left:9px !important;padding-right:9px !important;padding-top:9px !important;padding-bottom:0 !important;background-color:transparent !important}td[class=kmVerticalButtonIconContent],td[class=kmVerticalButtonTextContent],td[class=kmVerticalButtonContentOuter]{padding-left:0 !important;padding-right:0 !important;padding-bottom:9px !important}table[class=kmSplitContentLeftContentContainer] td[class=kmTextContent],table[class=kmSplitContentRightContentContainer] td[class=kmTextContent],table[class=kmColumnContainer] td[class=kmTextContent],table[class=kmSplitContentLeftContentContainer] td[class=kmImageContent],table[class=kmSplitContentRightContentContainer] td[class=kmImageContent]{padding-top:9px !important}td[class="rowContainer kmFloatLeft"],td.rowContainer.kmFloatLeft,td[class="rowContainer kmFloatLeft firstColumn"],td.rowContainer.kmFloatLeft.firstColumn,td[class="rowContainer kmFloatLeft lastColumn"],td.rowContainer.kmFloatLeft.lastColumn{float:left;clear:both;width:100% !important}table[class=templateContainer],table[class="templateContainer brandingContainer"],table[class=templateRow]{max-width:600px !important;width:100% !important}h1{font-size:40px !important;line-height:130% !important}h2{font-size:32px !important;line-height:130% !important}h3{font-size:24px !important;line-height:130% !important}h4{font-size:18px !important;line-height:130% !important}td[class=kmTextContent]{font-size:14px !important;line-height:130% !important}td[class=kmTextBlockInner] td[class=kmTextContent]{padding-right:18px !important;padding-left:18px !important}table[class="kmTableBlock kmTableMobile"] td[class=kmTableBlockInner]{padding-left:9px !important;padding-right:9px !important}table[class="kmTableBlock kmTableMobile"] td[class=kmTableBlockInner] [class=kmTextContent]{font-size:14px !important;line-height:130% !important;padding-left:4px !important;padding-right:4px !important}}
  .tdwidth
  {
      width:30%;
  }
  .kmTable th {
   text-align: left !important;
   padding-left: 40px !important;
   color: #cd0908 !important;
  }
  .kmTable td {
   text-align: left !important;
   padding-left: 40px !important;
  }
  .kmTable th:nth-child(2)  {
  padding-left: 10px !important;
  }
  .kmTable td:nth-child(2) {
      padding-left: 10px !important;
  }

</style>


</head>
<body style="margin:0;padding:0;background-color:#eee">
<center>
    <table align="center" border="0" cellpadding="0" cellspacing="0" id="bodyTable" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;padding:0;background-color:#eee;height:100%;margin:0;width:100%">
        <tbody>
        <tr>
            <td align="center" id="bodyCell" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;padding-top:50px;padding-left:20px;padding-bottom:20px;padding-right:20px;border-top:0;height:100%;margin:0;width:100%">
                <table border="0" cellpadding="0" cellspacing="0" class="templateContainer" width="600" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;border:0 none #aaa;background-color:#fff;border-radius:0">
                    <tbody>
                    <tr>
                        <td class="templateContainerInner" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;padding:0">
                            <table border="0" cellpadding="0" cellspacing="0" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                <tr>
                                    <td align="center" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                        <table border="0" cellpadding="0" cellspacing="0" class="templateRow" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                            <tbody>
                                            <tr>
                                                <td class="rowContainer kmFloatLeft" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                    <table border="0" cellpadding="0" cellspacing="0" class="kmImageBlock" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                        <tbody class="kmImageBlockOuter">
                                                        <tr>
                                                            <td class="kmImageBlockInner" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;padding:9px;background-color:#CE0909;" valign="top">
                                                                <table align="left" border="0" cellpadding="0" cellspacing="0" class="kmImageContentContainer" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                                    <tbody>
                                                                    <tr>
                                                                        <td class="kmImageContent" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;padding:0;padding-top:0px;padding-bottom:0;padding-left:9px;padding-right:9px;text-align: center;">
                                                                            <img align="center" alt="" class="kmImage" src="your company logo can go here" width="180" style="border:0;height:auto;line-height:100%;outline:none;text-decoration:none;padding-bottom:0;display:inline;vertical-align:bottom;max-width:180px;" />
                                                                        </td>
                                                                    </tr>
                                                                    </tbody>
                                                                </table>
                                                            </td>
                                                        </tr>
                                                        </tbody>
                                                    </table>
                                                    <table border="0" cellpadding="0" cellspacing="0" class="kmTextBlock" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                        <tbody class="kmTextBlockOuter">
                                                        <tr>
                                                            <td class="kmTextBlockInner" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;">
                                                                <table align="left" border="0" cellpadding="0" cellspacing="0" class="kmTextContentContainer" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                                    <tbody>
                                                                    <tr>
                                                                        <td class="kmTextContent" valign="top" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;padding-top:9px;padding-bottom:9px;padding-left:18px;padding-right:18px;'>
                                                                            <p style="margin:0;padding-bottom:1em">Dear Admin,</p>
                                                                            <p style="margin:0;padding-bottom:0">$$headermessage$$</p>
                                                                        </td>
                                                                    </tr>
                                                                    </tbody>
                                                                </table>
                                                            </td>
                                                        </tr>
                                                        </tbody>
                                                    </table>
                                                    <table border="0" cellpadding="0" cellspacing="0" class="kmTableBlock kmTableMobile" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                        <tbody class="kmTableBlockOuter">
                                                        <tr>
                                                            <td class="kmTableBlockInner" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;padding-top:9px;padding-bottom:9px;padding-left:18px;padding-right:18px;">
                                                                <table align="left" border="0" cellpadding="0" cellspacing="0" class="kmTable" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;">
                                                                    <thead>
                                                                    <tr>
                                                                        <th valign="top" class="kmTextContent tdwidth" style='color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;text-align:center;padding-top:4px;font-weight:bold;padding-right:0px;padding-left:0px;padding-bottom:4px;'>
                                                                            Fields
                                                                        </th>
                                                                        <th valign="top" class="kmTextContent" style='color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;text-align:center;padding-top:4px;font-weight:bold;padding-right:0px;padding-left:0px;padding-bottom:4px;'>
                                                                            Details
                                                                        </th>
                                                                    </tr>
                                                                    </thead>
                                                                    <tbody>
                                                                    <tr class="kmTableRow">
                                                                        <td valign="top" class="kmTextContent tdwidth" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            Username
                                                                        </td>
                                                                        <td valign="top" class="kmTextContent" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;border-right:none;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">$$username$$</span>
                                                                        </td>
                                                                    </tr>
                                                                    <tr class="kmTableRow">
                                                                        <td valign="top" class="kmTextContent" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            Email
                                                                        </td>
                                                                        <td valign="top" class="kmTextContent tdwidth" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;border-right:none;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">$$email$$</span>
                                                                        </td>
                                                                    </tr>
                                                                    <tr class="kmTableRow">
                                                                        <td valign="top" class="kmTextContent tdwidth" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">Mobile No.</span>
                                                                        </td>
                                                                        <td valign="top" class="kmTextContent" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;border-right:none;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">$$mobile$$</span>
                                                                        </td>
                                                                    </tr>


                                                                    <tr class="kmTableRow">
                                                                        <td valign="top" class="kmTextContent tdwidth" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">Age</span>
                                                                        </td>
                                                                        <td valign="top" class="kmTextContent" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;border-right:none;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">$$age$$</span>
                                                                        </td>
                                                                    </tr>

                                                                    <tr class="kmTableRow">
                                                                        <td valign="top" class="kmTextContent tdwidth" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">Dob</span>
                                                                        </td>
                                                                        <td valign="top" class="kmTextContent" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;border-right:none;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">$$dob$$</span>
                                                                        </td>
                                                                    </tr>



                                                                    <tr class="kmTableRow">
                                                                        <td valign="top" class="kmTextContent tdwidth" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">Address</span>
                                                                        </td>
                                                                        <td valign="top" class="kmTextContent" style='border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;color:#222;font-family:"Helvetica Neue", Arial;font-size:14px;line-height:130%;text-align:left;border-right:none;text-align:center;;border-top-style:solid;padding-bottom:4px;padding-right:0px;padding-left:0px;padding-top:4px;border-top-color:#d9d9d9;border-top-width:1px;'>
                                                                            <span style="color: #000000;">$$address$$</span>
                                                                        </td>
                                                                    </tr>

                                                                    </tbody>
                                                                </table>
                                                            </td>
                                                        </tr>
                                                        </tbody>
                                                    </table>
                                                </td>
                                            </tr>
                                            </tbody>
                                        </table>
                                    </td>
                                </tr>
                                <tr>

                                </tr>
                                <tr>
                                    <td align="center" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                        <table border="0" cellpadding="0" cellspacing="0" class="templateRow" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                            <tbody>
                                            <tr>
                                                <td class="rowContainer kmFloatLeft" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                </td>
                                            </tr>
                                            </tbody>
                                        </table>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    </tbody>
                </table>
                <table border="0" cellpadding="0" cellspacing="0" class="templateContainer brandingContainer" width="600" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;border:0 none #aaa;background-color:transparent;border-radius:0">
                    <tbody>
                    <tr>
                        <td class="templateContainerInner" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;padding:0">
                            <table border="0" cellpadding="0" cellspacing="0" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                <tr>
                                    <td align="center" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                        <table border="0" cellpadding="0" cellspacing="0" class="templateRow" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                            <tbody>
                                            <tr>
                                                <td class="rowContainer kmFloatLeft" valign="top" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                    <table border="0" cellpadding="0" cellspacing="0" class="kmImageBlock" width="100%" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0">
                                                        <tbody class="kmImageBlockOuter">
                                                        <tr>
                                                            <td class="kmImageBlockInner" style="border-collapse:collapse;mso-table-lspace:0;mso-table-rspace:0;padding:9px;padding-top:25px;padding-bottom:25px;" valign="top">

                                                            </td>
                                                        </tr>
                                                        </tbody>
                                                    </table>
                                                </td>
                                            </tr>
                                            </tbody>
                                        </table>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    </tbody>
                </table>
            </td>
        </tr>
        </tbody>
    </table>
</center>
</body>
</html>

user_profile.html

HTML代码的输出看起来像这样

第四步

最后，将以下代码粘贴到您的MainActivity中。

package com.emailsender;

import androidx.appcompat.app.AppCompatActivity;

import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void sendMail(View view)
    {
        new MailCreator().execute("");
    }

    public class MailCreator extends AsyncTask<String, String, String> {
        @Override
        protected String doInBackground(String... strings) {

            try {

                MailSender sender = new MailSender(getBaseContext(), AppsConstants.SENDER_EMAIL,AppsConstants.SENDER_PASSWORD);
                sender.sendUserDetailWithImage("New User Added", "Hi", "Himanshu",
                        AppsConstants.RECIPEINT_MAIL, "Himanshu Verma", "xyz@gmail.com", "+91 6075959010", "02/02/1994", "25","New Delhi, India","");

            } catch (Exception e) {
                Log.e("SendMail", e.getMessage(), e);
            }
            return null;
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
//            Toast.makeText(getActivity(),"Mail Sent",Toast.LENGTH_LONG).show();
        }
    }
}

MainActivity.java

结果

Data received on Gmail

注意：如果一切都很好，但仍然没有收到电子邮件，请检查您的垃圾邮件文件夹，如果该电子邮件位于此处，请单击“标记为非垃圾邮件”。

结论

我创建了一个Android项目，以电子邮件形式发送用户数据。我已经使用JavaMail API发送电子邮件。在本文中，我发送了HTML表单和数据。

如果您对本文有任何疑问或疑问，请随时在评论部分询问我。另外，您可以在我的Github帐户上找到本文的完整源代码。

翻译自：https://towardsdatascience.com/send-email-with-beautiful-form-in-android-b12cd5cc9572

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