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[英]How to pass iterating json object in jquery to javascript function
[英]Pass JSON to JQuery function Javascript
我们有一个非常简单的Google Apps脚本网络应用程序,目的是在HTML下拉列表中显示JSON数据。 JSON文件存在于Google云端硬盘中。 灵感代码来自: http : //jsfiddle.net/manoj_admlab/Mta5b/3/
但是,当我们尝试“获取Json”时,没有数据加载到下拉列表中:
<!DOCTYPE html>
<html>
<br> <br>
<center>
<head>
<base target="_top">
</head>
<body>
<select id="destinations">
<option value="">Select</option>
</select>
<a href="#" id="fetch">Fetch JSON</a>
</center>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"> </script>
<script>
google.script.run.getJson(); // Runs the function "getJson();" in Code.gs
$('#fetch').click(function(s) {
$.post(s, {json: JSON.stringify(json)}, function(data) {
$.each(data.Destinations, function(i, v) {
$('#destinations').append('<option value="' + v.destinationID + '">' + v.destinationName + '</option>');
});
});
});
</script>
</body>
</html>
function doGet() {
var template = HtmlService.createTemplateFromFile('index');
var htmlOutput = template.evaluate()
.setSandboxMode(HtmlService.SandboxMode.NATIVE);
return htmlOutput;
}
function getJson() {
var files = DriveApp.getFilesByName("jsonData.json");
var file = files.next();
var JSONDATA = file.getAs("application/json").getDataAsString();
//JSONDATA = JSON.stringify(JSONDATA);
JSONDATA = JSON.parse(JSONDATA);
Logger.log(JSONDATA);
click(JSONDATA); // <-- Trying to pass this data to "$('#fetch').click(function(s) {"
}
{
"options": {
"Destinations": [
{
"destinationName": "London",
"destinationID": "lon"
},
{
"destinationName": "New York",
"destinationID": "nyc"
},
{
"destinationName": "Paris",
"destinationID": "par"
},
{
"destinationName": "Rome",
"destinationID": "rom"
}
]
}
}
您必须在getJson()
函数中返回数据,并且在调用它时,您需要使用withSuccessHandler()
传递回调,如下所示:
在HTML中:
function justLog(e){
console.log(e);
}
$('#fetch').click(function(s) {
google.script.run.withSuccessHandler(justLog).getJson(); // Runs the function "getJson();" in Code.gs
});
在code.gs中,完成以下功能:
return JSONDATA;
谢谢克里格斯! 效果很好:
Index.html:
<!DOCTYPE html>
<html>
<head>
<select id="dropDownDest">
</select>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"> </script>
<script>
function onSuccess(json) {
$.each(json.Cars, function (key, value) {
$("#dropDownDest").append($('<option></option>').val(value.carID).html(value.CarType));
});
$('#dropDownDest').change(function () {
alert($(this).val());
//Code to select image based on selected car id
});
}
google.script.run.withSuccessHandler(onSuccess)
.jsonData();
</script>
</head>
</html>
代码gs:
function doGet() {
return HtmlService.createHtmlOutputFromFile('Index')
.setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
function jsonData() {
var a = {
Cars: [{
"CarType": "BMW",
"carID": "bmw123"
}, {
"CarType": "mercedes",
"carID": "merc123"
}, {
"CarType": "volvo",
"carID": "vol123r"
}, {
"CarType": "ford",
"carID": "ford123"
}]
};
Logger.log(a);
return a;
}
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