我是JavaScript和JQuery的新手。我正在尝试使用Openweathermap API获取天气数据。我正在尝试使用Openweathermap API遍历$.getJSON()
方法返回的对象。
HTML代码:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Weather Application</title>
<script src="http://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link href="http://code.jquery.com/ui/1.10.4/themes/ui-lightness/jquery-ui.css" rel="stylesheet">
<script src="assets/js/script.js"></script>
</head>
<body>
<header>
<h1>Weather Forecast</h1>
</header>
<p id="location"></p>
<p id="json"></p>
<!--<form id="search-form">-->
<!--<fieldset>-->
<!--<input type="textbox" id="search" name="search" align="right" />-->
<!--<button id="search-submit" align="right" value="Go" />-->
<!--</fieldset>-->
<!--</form>-->
<div style="padding:16px;">
Enter the name of city : <input id="c1"type="text" value="Carbondale"/>
<button id="button1" >Go</button>
</div>
<div>
<p id="result"></p>
</div>
<div>
<h1>Forecast Data</h1>
Enter the name of city : <input id="c2" type="text" value="....."/>
Number of Days : <input id="days" type="text" value="1"/>
<button id="button2">Go</button>
<p id="forecast"></p>
</div>
</body>
</html>
对应的JavaScript代码:
$(document).ready(function ()
{
$("#button2").click(function () {
var search_City2 = $("#c2").val();
var days = $("#days").val();
var count = Number(days);
var search_url2 = "http://api.openweathermap.org/data/2.5/forecast/daily?q="+search_City2+
"&mode=json&units=metric&cnt="+days;
$("#forecast").html(search_City2 + " "+count+" "+search_url2+"</br>");
//document.getElementById("location").innerHTML = city+ " "+url;
var mydate = new Date();
$.getJSON(search_url2, function (result) {
$.each(result,function(i,field){
$("#forecast").append(JSON.stringfy(field));
});
//for(i =0;i<count;i++) {
//$("#forecast").append("</br><b>" + i + " " + count +" " + " </b>");
//$("#forecast").append("</br>Temperature at Day :" + result.list[5].temp.day);
// $("#forecast").append("</br>Temperature at Morning :" + result.list[i].temp.morn);
// $("#forecast").append("</br>Temperature at Evening :" + result.list[i].temp.eve);
// $("#forecast").append("</br>Temperature at Night :" + result.list[i].temp.night);
// $("#forecast").append("</br>Max Temperature:" + result.list[i].temp.max);
//$("#forecast").append("</br>Min Temperature:" + result.list[i].temp.min);
//$("#forecast").append("</br>Humidity: " + result.list[i].humidity + "%");
// $("#forecast").append("</br>Weather Condition : " + result.list[i].weather[i].description);
//$("#forecast").append("</p></div>");
// $("#forecast").append("</br>Temperature :" + result.list[1].temp.day);
// $("#result").append("</br>Humidity :"+ result.list[0].main.humidity);
// $("#result").append("</br>Weather Condition :"+result.list[0].weather[0].description) ;
//}
});
});
});
我尝试了for-loop
和each
功能。但它仍然无法正常工作。我在这里做错了什么?
答案 0 :(得分:1)
我不确定你要做什么,但下面是我最好的解决问题的方法。它包含一个.forEach
循环,用于遍历响应中的每一天的预测,并保留您解析字段的方式。
小提琴:http://jsfiddle.net/0h6mv658/2/
此处有错误:JSON.stringfy(field) -> JSON.stringify(field)
使用循环更新代码:
$.getJSON(search_url2, function (result) {
$.each(result,function(i,field){
$("#forecast").append(JSON.stringify(field));
});
result.list.forEach(function(forecast, i) {
$("#forecast").append("</br><b>" + i + " " + result.list.length +" " + " </b>");
$("#forecast").append("</br>Temperature at Day :" + forecast.temp.day);
$("#forecast").append("</br>Temperature at Morning :" + forecast.temp.morn);
$("#forecast").append("</br>Temperature at Evening :" + forecast.temp.eve);
$("#forecast").append("</br>Temperature at Night :" + forecast.temp.night);
$("#forecast").append("</br>Max Temperature:" + forecast.temp.max);
$("#forecast").append("</br>Min Temperature:" + forecast.temp.min);
$("#forecast").append("</br>Humidity: " + forecast.humidity + "%");
forecast.weather.forEach(function(weather) {
$("#forecast").append("</br>Weather Condition : " + weather.description);
});
$("#forecast").append("</p></div>");
$("#forecast").append("</br>Temperature :" + forecast.temp.day);
$("#result").append("</br>Humidity :"+ forecast.main.humidity);
$("#result").append("</br>Weather Condition :"+forecast.weather[0].description) ;
});
});
答案 1 :(得分:0)
非常感谢。有效。我也改变了for循环。实际上我在索引方面遇到了问题..该行应该是这样的:
$("#forecast").append("</br>Weather Condition : " + result.list[i].weather[0].description)
循环结构将是:
for (var i = 0; i < result.list.length; i++)
答案 2 :(得分:-1)
您可以使用$.each(receivedData,callback);