我第一次嘗試使用GET從REST API獲取數據。我可以使用郵遞員獲取數據，我只需通過GET屬性傳遞我的url，然后在Headers選項卡中傳遞兩個鍵值對，如下所示，并能夠以csv格式獲取數據記錄明智的數據（常規csv類型的輸出，列名有記錄）Headers tab in Postman    autd_id:ddhd45t-78d0-54ad-8320-94aejit526    aith:token:hf2h1-d1a1-6589-c55d-94aejit526現在，我嘗試使用Java自己執行此操作，但收到錯誤代碼401。這意味著我猜錯了憑據，但這是正確的。這是我的代碼。import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;public class Brigade {    public static void Getbrigadedata() {        try {            URL url = new URL(                    "https://Brigade.co-buying.com/api/reports/referred/brigade_raf1");            HttpURLConnection conn = (HttpURLConnection) url.openConnection();            conn.setRequestMethod("GET");            String userCredentials = "ddhd45t-78d0-54ad-8320-94aejit526:9658hf2h1-d1a1-6589-c55d-94aejit526";            new Base64();            String basicAuth = "Basic " + new String(Base64.encode(userCredentials.getBytes()));            conn.setRequestProperty("Authorization", basicAuth);            if (conn.getResponseCode() != 200) {                throw new RuntimeException("Failed : HTTP error code : "                        + conn.getResponseCode());            }            BufferedReader br = new BufferedReader(new InputStreamReader(                    (conn.getInputStream())));            String output;            System.out.println("Output from Server .... \n");            while ((output = br.readLine()) != null) {                System.out.println(output);            }            conn.disconnect();        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }}誰能告訴我做錯了什么？