我是JavaScript和Vue.js的新手,我在使用Vue.js访问API时遇到了麻烦。我尝试访问的API具有以下JSON格式:
{
"coord": {
"lon": -88.99,
"lat": 40.51
},
"weather": [
{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01n"
}
],
"base": "stations",
"main": {
"temp": 2.09,
"pressure": 1022.3,
"humidity": 69,
"temp_min": 2.09,
"temp_max": 2.09,
"sea_level": 1052.03,
"grnd_level": 1022.3
},
"wind": {
"speed": 12.66,
"deg": 205.502
},
"clouds": {
"all": 0
},
"dt": 1482203059,
"sys": {
"message": 0.186,
"country": "US",
"sunrise": 1482239741,
"sunset": 1482273134
},
"id": 4903780,
"name": "Normal",
"cod": 200
}
API链接本身是有效的,但我认为在运行程序时没有访问它。即使我不尝试解析JSON,只显示从API收集的所有数据,我的变量仍然为空。所以,我一定是在访问API时出了问题。此外,在访问API之后,像这样解析它是否有效:例如,访问标签“temp”=>“data.main.temp”
var weather = new Vue({
el: '#weather',
data: {
getTemp: ''
},
created: function () {
this.fetchData();
},
methods: {
fetchData: function () {
this.$http.get('api.openweathermap.org/data/2.5/weather?q=Normal&units=imperial&APPID=MYAPPID'),
function (data) {
this.getTemp = data.main.temp;
}
}
}
})
;
HTML 代码:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://cdn.jsdelivr.net/vue.resource/1.0.3/vue-resource.min.js"></script>
</head>
<body>
<div id="weather">
{{getTemp}}
</div> <!--end of weather-->
</body>
<script src="app.js"></script>
</html>