[英]How to Create a JSON Object and Array of Objects?
我想从电话中获取数据(geoLocation数据)并将其放入JSON对象,然后通过网络将其发送到要存储的数据库。 我不确定如何创建该对象以及它是否应该是对象数组。 另外,如何设置对象以接收更新为要发送到服务器的新信息? 这是我目前拥有的代码。 我正在使用eclipse,phonegap,javascript和JSON。
var JSONID = 0;
// Create a JSON Object Array
geoLocJSON ();
/* This is what I want my Object to look like.
[
{
"id" : 0,
"geoLoc" : {
"Lat" : "",
"Long" : ""
},
"direction" : {
"Alt" : "",
"Head" : "",
"Speed" : ""
},
"Time" : ""
};
]
*/
// onSuccess Geolocation
function onSuccess(position){
// Testing for data
var element = document.getElementById('geolocation');
element.innerHTML =
'Latitude: ' + position.coords.latitude + '<br />' +
'Longitude: ' + position.coords.longitude + '<br />' +
'Altitude: ' + position.coords.altitude + '<br />' +
'Heading: ' + position.coords.heading + '<br />' +
'Speed: ' + position.coords.speed + '<br />' +
'Timestamp: ' + new Date(position.timestamp) + '<br />' +
'<hr />' + element.innerHTML;
// Puts into JSON Object
geoLocJSON.id = JSONID;
geoLocJSON.geoLoc.Lat = position.coords.latitude;
geoLocJSON.geoLoc.Long = position.coords.longitude;
geoLocJSON.direction.Alt = position.coords.altitude;
geoLocJSON.direction.Head = position.coords.heading;
geoLocJSON.direction.Speed = position.coords.speed;
geoLocJSON.Time = new Date(position.timestamp);
// Increments the JSONID
JSONID++;
}
然后,将在收集数据1分钟后将其发布到服务器,并且将删除JSON对象(除非POST不成功),然后将该对象存储在设备本地,然后在网络再次可用时发布。
谢谢您的帮助。
var JSONID = 0;
// Create a JSON Object Array
var geoLocJSON = new Array();
/* This is what I want my Object to look like.
[
{
"id" : 0,
"geoLoc" : {
"Lat" : "",
"Long" : ""
},
"direction" : {
"Alt" : "",
"Head" : "",
"Speed" : ""
},
"Time" : ""
};
]
*/
// onSuccess Geolocation
function onSuccess(position){
// Testing for data
var element = document.getElementById('geolocation');
element.innerHTML =
'Latitude: ' + position.coords.latitude + '<br />' +
'Longitude: ' + position.coords.longitude + '<br />' +
'Altitude: ' + position.coords.altitude + '<br />' +
'Heading: ' + position.coords.heading + '<br />' +
'Speed: ' + position.coords.speed + '<br />' +
'Timestamp: ' + new Date(position.timestamp) + '<br />' +
'<hr />' + element.innerHTML;
var myJSON = {
"id":JSONID,
"geoLoc":{
"Lat":position.coords.latitude,
"Long":position.coords.longitude
},
"direction":{
"Alt":position.coords.altitude,
"Head":position.coords.heading,
"Speed":position.coords.speed
},
"Time":new Date(position.timestamp
};
// Increments the JSONID
JSONID++;
geoLocJSON.push(myJSON);
}
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