HarmonyOS 鸿蒙Next 怎么发送http请求

在HarmonyOS（鸿蒙）系统中发送HTTP请求，通常可以通过集成网络请求库或使用原生API来实现。以下是一个基于Java或Kotlin（适用于鸿蒙应用开发）的基本示例，展示了如何发送HTTP GET请求：

1. 引入网络权限：在config.json文件中添加网络权限，例如：

   "module": {
     "package": "your.package.name",
     "reqPermissions": [
       "ohos.permission.INTERNET"
     ]
   }
   

2. 使用HttpURLConnection发送请求：

   import ohos.aafwk.ability.Ability;
   import java.io.BufferedReader;
   import java.io.InputStreamReader;
   import java.net.HttpURLConnection;
   import java.net.URL;
   
   public class MainAbility extends Ability {
       public void sendGetRequest(String urlString) {
           try {
               URL url = new URL(urlString);
               HttpURLConnection connection = (HttpURLConnection) url.openConnection();
               connection.setRequestMethod("GET");
               BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
               String inputLine;
               StringBuffer response = new StringBuffer();
               while ((inputLine = in.readLine()) != null) {
                   response.append(inputLine);
               }
               in.close();
               // 处理响应
               System.out.println(response.toString());
           } catch (Exception e) {
               e.printStackTrace();
           }
       }
   }
   

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