从android（java）中的api获取最新数据答案

【问题标题】：Get the latest data from api in androd (java)从android（java）中的api获取最新数据
【发布时间】：2021-01-29 20:18:43
【问题描述】：

嗨，我想在 android studio 中使用 java 从此 API 获取最新数据 API链接https://api.covid19api.com/live/country/usa API 内容如下面的数据，所以我需要知道如何从中获取最新数据

[
   {
      "ID":"f3a22636-93a7-4ea8-8cee-2f6cd7ed73f4",
      "Country":"United States of America",
      "CountryCode":"US",
      "Province":"Diamond Princess",
      "City":"",
      "CityCode":"",
      "Lat":"35.44",
      "Lon":"139.64",
      "Confirmed":49,
      "Deaths":0,
      "Recovered":0,
      "Active":49,
      "Date":"2020-08-04T00:00:00Z"
   },
   {
      "ID":"021c00b1-ba8e-4e0d-95fa-7492c5c38191",
      "Country":"United States of America",
      "CountryCode":"US",
      "Province":"South Dakota",
      "City":"",
      "CityCode":"",
      "Lat":"44.3",
      "Lon":"-99.44",
      "Confirmed":104512,
      "Deaths":1614,
      "Recovered":0,
      "Active":102898,
      "Date":"2021-01-14T00:00:00Z"
   },
   {
      "ID":"02c792d7-a931-4449-b14e-d156aeef0a5a",
      "Country":"United States of America",
      "CountryCode":"US",
      "Province":"Maine",
      "City":"",
      "CityCode":"",
      "Lat":"44.69",
      "Lon":"-69.38",
      "Confirmed":31958,
      "Deaths":461,
      "Recovered":0,
      "Active":31497,
      "Date":"2021-01-14T00:00:00Z"
   }
]

【问题讨论】：

标签： java android json api

【解决方案1】：

您可以使用Retrofit2 库从 Android 应用中的 api url 中提取数据。

【讨论】：

怎么样？请你用一个例子解释一下吗

【解决方案2】：

您可以使用 OkHTTP 库。这是一个示例 sn-p：

            OkHttpClient client = new OkHttpClient();

            MediaType mediaType = MediaType.parse("application/x-www-form-urlencoded");
            RequestBody body = RequestBody.create(mediaType, "app_key=whatever");
            Request request = new Request.Builder()
                    .url("https://app.inyek.com/app_api/api_extra/all_order.php")
                    .post(body)
                    .addHeader("Content-Type", "application/x-www-form-urlencoded")
                    .addHeader("key", "whatever")
                    .addHeader("cache-control", "no-cache")
                    .addHeader("Postman-Token", "whatever")
                    .build();

            Response response = client.newCall(request).execute();

【讨论】：