HTTP請求正文中的POST JSON對象

Question

嘿，我很喜歡用Java/Android中的HTTP請求。我想創建一個新的Github問題。所以我查了一下，幾乎每個人都以同樣的方式做了，但是我遇到了AndroidStudio告訴我的問題，所有的類（HttpClient, HttpPost, ResponseHandler）都不存在，是否有錯或爲什麼我沒有他們？

private class GithubPostIssues extends AsyncTask<String, Void, String> { 

    private View view; 

    public GithubPostIssues(View view) { 
     this.view = view; 
    } 

    @Override 
    protected void onPostExecute(String result) { 
     Toast.makeText(FeedbackActivity.this, "Feedback/Hilfe gesendet", Toast.LENGTH_SHORT).show(); 
     finish(); 
    } 

    @Override 
    protected String doInBackground(String... params) { 
     return addIssue(view); 
    } 

    private String addIssue(View view) { 

     //here I'm getting some values from the user input and pass them in to the execute method 

     return execute(title, body, bug, help, question, feature, enhancement, design); 
    } 

    private String execute (String title, String body, boolean bug, 
          boolean help, boolean question, boolean feature, 
          boolean enhancement, boolean design) { 
     //Building the JSONOBject to pass in to the Request Body 
     JSONObject issue = new JSONObject(); 
     JSONArray labels = new JSONArray(); 
     try { 
      issue.put("title", title); 
      issue.put("body", body); 
      labels.put("0 - Backlog"); 
      if (bug) { 
       labels.put("bug"); 
      } 
      if (help) { 
       labels.put("help"); 
      } 
      if (question) { 
       labels.put("question"); 
      } 
      if (feature) { 
       labels.put("feature"); 
      } 
      if (enhancement) { 
       labels.put("enhancement"); 
      } 
      if (design) { 
       labels.put("design"); 
      } 
      issue.put("labels", labels); 

      return makeRequest("http://requestb.in/uwwzlwuw", issue); 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 
     return null; 
    } 

    private String makeRequest (String uri, JSONObject issue) { 
     //all these clases aren't found by Android Studio 
     HttpClient httpClient = new DefaultHttpClient(); 
     HttpPost httpPost = new HttpPost(uri); 

     httpPost.setEntity(new StringEntity(issue)); 
     httpPost.setHeader("Accept", "application/json"); 
     httpPost.setHeader("Content-type", "application/json"); 
     ResponseHandler<String> responseHandler = new BasicResponseHandler(); 
     return httpClient.execute(httpPost, responseHandler); 
    } 
} 

Answer 1

嘗試增加這裏面gradle這個：

android { 
useLibrary 'org.apache.http.legacy'