如何在api.openweathermap中使用Json Jquery获取天气信息

问题描述：

我有这个api

 http://api.openweathermap.org/data/2.5/forecast/daily?q=Montpellier&mode=json&units=metric&cnt=10

然后我将使用Jquery获取信息(城市名称，天气...).

and I will get the information (name of city, weather...) using Jquery .

我该怎么做?

答

使用ajax调用来获取JSON

Use an ajax call to get the JSON like this

$(document).ready(function(){
$.getJSON("http://api.openweathermap.org/data/2.5/forecast/daily?q=Montpellier&mode=json&units=metric&cnt=10",function(result){
    alert("City: "+result.city.name);
    alert("Weather: "+ result.list[0].weather[0].description);
    });
});

这是小提琴: http://jsfiddle.net/cz7y852q/

如果您不想使用jQuery:

If you do not want to use jQuery:

var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function() {
        if (xmlhttp.readyState == XMLHttpRequest.DONE ) {
           if (xmlhttp.status == 200) {
              var data = JSON.parse(xmlhttp.responseText);
              //access json properties here
              alert("Weather: "+ data.weather[0].description);
           }
           else if (xmlhttp.status == 400) {
              alert('There was an error 400');
           }
           else {
               alert('something else other than 200 was returned');
           }
        }
    };
    xmlhttp.open("GET", "http://api.openweathermap.org/data/2.5/weather?id=524901&APPID=7dba932c8f7027077d07d50dc20b4bf1", true);
    xmlhttp.send();

如果URL中的一个无效，请使用您自己的 API密钥.

Use your own API key if the one in the URL does not work.

如何在api.openweathermap中使用Json Jquery获取天气信息

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