在沒有httpClient的情況下從android發送HTTP Get和Post請求

Question

我嘗試使用來自Android應用程序的webservice其余部分，但是當我查找示例並發現只有兩種方法時，不推薦使用httpClient，甚至無法為該版本的應用程序導入我的方法，以及使用HttpURLConnection的方法，無法正常工作。

此時此刻我的代碼：

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;

public class RestConnect  {
    public static String listar() throws IOException {
       try {
           URL reqURL = new URL("http://localhost/wsRest/index.php/contact");
           HttpURLConnection request = (HttpURLConnection) (reqURL.openConnection());
           request.setRequestMethod("GET");
           request.connect();

        } catch (Exception e) {
            return "Nope!";
        }
        return "YESSSS!";
    }
}

如何訪問我的URL並輕松獲取其內容（使用Get和Post方法）？

非常感謝大家！

Answer 1

最好使用很棒的http庫https://github.com/square/okhttp

例如，嘗試以下代碼段：

  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("http://publicobject.com/helloworld.txt")
        .build();

    Response response = client.newCall(request).execute();
    if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

    Headers responseHeaders = response.headers();
    for (int i = 0; i < responseHeaders.size(); i++) {
      System.out.println(responseHeaders.name(i) + ": " + responseHeaders.value(i));
    }

    System.out.println(response.body().string());
  }

另一個偉大的解決方案（也是來自方形團隊）是翻新

Answer 2

嘗試這個

 URL url = new URL(urlpath.toString()); // Your given URL.
     HttpURLConnection c = (HttpURLConnection) url.openConnection();
     c.setRequestMethod("GET");
c.setRequestProperty("Content-length", "0");
        c.setUseCaches(false);
        c.setAllowUserInteraction(false);
        c.setConnectTimeout(timeout);
        c.setReadTimeout(timeout);
        c.connect();
        int status = c.getResponseCode();

        switch (status) {
            case 200:
            case 201:
                BufferedReader br = new BufferedReader(new   InputStreamReader(c.getInputStream()));
                StringBuilder sb = new StringBuilder();
                String line;
                while ((line = br.readLine()) != null) {
                    sb.append(line+"\n");
                }
                br.close();
                return sb.toString();
        }