<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>简单的天气查询</title>
</head>
<body>
<p>输入当前城市:<input type="text" id="city"></p>
<button type="submit" onclick="getWeather()">查询</button>
<p id="weatherInfo"></p>
<script>
function getWeather(){
let url = 'https://www.apiopen.top/weatherApi?city=';
let city = document.getElementById('city');
// 获取要查询的城市
let newURL = url + city.value;
console.log(newURL);
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
if(xhr.readyState === 4){
if(xhr.status === 200){
return success(xhr.responseText);
}else{
alert('失败！')
}
}
}
xhr.open('GET',newURL);
xhr.send();
}
function success(data){
let weather = document.getElementById('weatherInfo');
let weatherInfo = JSON.parse(data);
if(weatherInfo.code === 200){
weather.innerHTML = '查询成功' + '<br>'+
'当前城市：'+weatherInfo.data.city+ '<br>'+
'当前温度：'+weatherInfo.data.wendu+'<br>'+
'气温：'+'最'+weatherInfo.data.forecast[0].high +'，最'+weatherInfo.data.forecast[0].low+'<br>'+
'天气：'+weatherInfo.data.forecast[0].type+'<br>'+
'风向：'+weatherInfo.data.forecast[0].fengxiang + weatherInfo.data.forecast[0].fengli+'<br>' +
'注意：'+weatherInfo.data.ganmao
}else{
weather.innerText = weatherInfo.msg;
}
}
</script>
</body>
</html>