如何将两个 Javascript 值发送到 xively feed，一个作为 ID，一个作为值。当前代码是。我想将这些值放入 xively feed 中，这样我就可以通过带有 wifi 的 arduino 访问它们。不幸的是，从 JS 直接从网站获取值似乎并不直接，所以这是我的解决方法，除非有人有更好的方法从 arduino 访问这些数据。使用此示例作为引用，但我想从网站发送数据而不是检索它。 http://xively.github.io/xively-js/tutorial/
<!DOCTYPE html >
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<script src="jquery-1.10.2.min.js"></script>
<script type="text/javascript" src="parse-1.2.16.min.js"></script>
</head>
<body>
<script>
jQuery(function($){
xively.setKey( "APIKEY" );
Parse.initialize("APIKEY", "APIKEY");
var mValue = Parse.Object.extend("mValue");
var queryLngLat = new Parse.Query(mValue);
var classObject = new mValue();
var existingMarkers= [];
var databaseMarkers= [];
var counter = 0;
var div ;
var resultsLength;
setInterval(function update() {
queryLngLat.notEqualTo("longAndLat", null);
queryLngLat.find({
success: function(results) {
console.log("Successfully retrieved " + results.length + " scores.");
for (var j = 0; j < results.length; j++ ) {
databaseMarkers = (results[j].attributes.longAndLat);
resultsLength = results.length;
counter++;
var markerValueRead = results[j].attributes.Val;
CoordsPush = databaseMarkers.substring(1, databaseMarkers.length - 1);
div = document.createElement("div");
div.style.width = "400px;";
div.style.background = "white";
div.style.color = "black";
div.innerHTML = /*"Database LatLng: " + CoordsPush + " Marker Value: " + */markerValueRead;
div.setAttribute("id", CoordsPush);
document.body.appendChild(div);
//alert(div.id);
JSON.stringify(markerValueRead);
xively.setKey("UYby76Zocsur664I6sRd13BXKUKrpM3xDSntN5qB5fvPxMhG");
var feedID = 129375335,
datastreamID = "LatLng";
selector = "50.3754565, -4.14265649999993"
xively.datastream.get(feedID, datastreamID, function(datastream) {
$selector.html( datastream["current_value"] );
xively.datastream.subscribe(feedID, datastreamID, function( even, datastream_updated) {
$(selector).html(datastream_updated["current_value"]);
});
});
//console.log("(" + markers[d].getPosition().d + ", " + markers[d].getPosition().e +")");
console.log("Database LatLng: " + databaseMarkers + " Marker Value: " + markerValueRead);
}
counter = 0;
}
});
document.body.innerHTML = '';
}, 15000);
});
</script>
<script src="http://d23cj0cdvyoxg0.cloudfront.net/xivelyjs-1.0.4.min.js"></script>
</body>
</html>
最佳答案
这是一个向 feed 中的两个 channel (“foo”和“bar”)发送单个值的简单示例...
<!DOCTYPE HTML>
<html>
<head>
<title>Xively Test</title>
<script language="JavaScript" type="text/javascript" src="lib/jquery/jquery-1.10.2.min.js"></script>
<script language="JavaScript" type="text/javascript" src="lib/xively/xivelyjs-1.0.4.min.js"></script>
<script language="JavaScript" type="text/javascript">
var API_KEY = "YOUR_API_KEY";
var FEED_ID = "YOUR_FEED_ID";
$(document).ready(function() {
// Set your API key first
xively.setKey(API_KEY);
// build the data packet
var timestamp = new Date().toISOString();
var data = { "version" : "1.0.0",
"datastreams" : [
{ "id" : "foo", "datapoints" : [ {"at" : timestamp, "value" : 10} ] },
{ "id" : "bar", "datapoints" : [ {"at" : timestamp, "value" : 20} ] }
]
};
// upload the data
xively.feed.update(FEED_ID, data, function(response) {
if (response.status == "200") {
console.log("Yay, it worked!: " + JSON.stringify(response, null, 3));
}
else {
console.log("Boo, something went wrong!: " + JSON.stringify(response, null, 3));
}
});
});
</script>
</head>
<body>
Look in the console for output.
</body>
</html>
关于javascript - 使用 XivelyJS 将 JS 值发送到 xively，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22020656/