Java Servlet如何從Shopify API獲取json響應

Question

我試圖通過REST服務從shopify API獲取產品記錄。但我得到這個錯誤{"errors":{"product":"can't be blank"}}下面是代碼片段。

  String getURL = "https://myshop.myshopify.com/admin/products.json"; 

      url = new URL(getURL); 

      connection = (HttpURLConnection) url.openConnection(); 
      connection.setRequestMethod("GET"); 
      connection.setRequestProperty("Content-Type", 
       "application-json"); 
      connection.setRequestProperty("X-Shopify-Access-Token",token); 
      connection.setUseCaches(false); 
      connection.setDoInput(true); 
      connection.setDoOutput(true); 
      // Send request 
      DataOutputStream w = new DataOutputStream(
        connection.getOutputStream()); 
      w.flush(); 
      w.close(); 


      // Get Response 
      InputStream i = connection.getInputStream(); 
      BufferedReader streamReader = new BufferedReader(new InputStreamReader(i, "UTF-8")); 
      StringBuilder responseStrBuilder = new StringBuilder(); 

      String inputStr; 
      while ((inputStr = streamReader.readLine()) != null){ 
       System.out.println(inputStr); 
       responseStrBuilder.append(inputStr); 
      } 

Answer 1

請求頭應該是這樣的：

connection.setRequestProperty("Accept", "application/json"); 
connection.setRequestProperty("Content-Type", "application/json");