将数据库条目发送到电子邮件的 Javascript答案

【问题标题】：Javascript to send database-entries to an Email将数据库条目发送到电子邮件的 Javascript
【发布时间】：2016-06-05 12:43:13
【问题描述】：

在 Phonegap-App 中，我有一个数据库，希望用户在应用会话结束时将他们的条目发送到用户指定的电子邮件地址。

如何使用 Javascript 获取用户设备上的数据库条目并让用户输入数据发送到的电子邮件地址？

有什么帮助吗？

这是数据库 Javascript 代码：

<script>
        var FILENAME = 'database.db',
            $ = function (id) {
                return document.getElementById(id);
            },
            failCB = function (msg) {
                return function () {
                    alert('[FAIL] ' + msg);
                }
            },
            file = {
                writer: { available: false },
                reader: { available: false }
            },
            dbEntries = [];
        document.addEventListener('deviceready', function () {
            var fail = failCB('requestFileSystem');
            window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, fail);
        }, false);
        function gotFS(fs) {
            var fail = failCB('getFile');
            fs.root.getFile(FILENAME, {create: true, exclusive: false},
                            gotFileEntry, fail);
        }
        function gotFileEntry(fileEntry) {
            var fail = failCB('createWriter');
            file.entry = fileEntry;
            fileEntry.createWriter(gotFileWriter, fail);
            readText();
        }
        function gotFileWriter(fileWriter) {
            file.writer.available = true;
            file.writer.object = fileWriter;
        }
        function saveText(e) {
            var name = $('name').value,
                desc = $('desc').value,
                fail;
            dbEntries.push('<dt>' + name + '</dt><dd>' + desc + '</dd>')
            $('name').value = '';
            $('desc').value = '';
            $('definitions').innerHTML = dbEntries.join('');
            if (file.writer.available) {
                file.writer.available = false;
                file.writer.object.onwriteend = function (evt) {
                    file.writer.available = true;
                    file.writer.object.seek(0);
                }
                file.writer.object.write(dbEntries.join("\n"));
            }
            return false;
        }
        function readText() {
            if (file.entry) {
                file.entry.file(function (dbFile) {
                    var reader = new FileReader();
                    reader.onloadend = function (evt) {
                        var textArray = evt.target.result.split("\n");
                        dbEntries = textArray.concat(dbEntries);
                        $('definitions').innerHTML = dbEntries.join('');
                    }
                    reader.readAsText(dbFile);
                }, failCB("FileReader"));
            }
            return false;
        }
    </script>

【问题讨论】：

标签： javascript database cordova email send

【解决方案1】：

使用插件https://github.com/katzer/cordova-plugin-email-composer

它直接在设备中打开手机默认的电子邮件应用程序。

js语法如下：

cordova.plugins.email.open({
    to:          Array, // email addresses for TO field
    cc:          Array, // email addresses for CC field
    bcc:         Array, // email addresses for BCC field
    attachments: Array, // file paths or base64 data streams
    subject:    String, // subject of the email
    body:       String, // email body (for HTML, set isHtml to true)
    isHtml:    Boolean, // indicats if the body is HTML or plain text
}, callback, scope);

【讨论】：

【解决方案2】：

好的，我认为 Javascript 电子邮件无法正常工作。

有什么办法可以用php来抓取数据吗？

就像不使用 function readText() 显示数据，而是将其交给服务器端 .php，就像使用此表单一样：

<?php
$empfaenger = $_POST["email"]; 
$absendername = $_POST["name"];
$absendermail = $_POST["email"];
$betreff = "$absendername have send an email.";
$answer1 = $_POST["antwort1"];
$answert2 = $_POST["antwort2"];
$text = "send to: $absendermail

Namen: $absendername

Station 1: $answer1 
Station 2: $answer2";
mail($empfaenger, $betreff, $text, "From: $absendername <$absendername>");
?>
<head>
</head>
<body>
<h3>Thanks</h3>
</body>

【讨论】：