我的目標是從API獲取xml。我使用的API URI包括參數是http://webservices.ns.nl/ns-api-treinplanner?fromStation=Roosendaal&toStation=Eindhoven。我有一個用戶名和密碼,我認爲這可能是基本授權。Android:沒有通過http獲取xml獲取基本認證請求
我嘗試了各種東西,如Authenticator,格式http://username:[email protected]/ns-api-treinplanner,但在很多SO搜索結束時,我最終得到了帶有基本授權的setRequestProperty
。
我把代碼放到了一個AsyncTask中,這似乎能正常工作,所以我只是把doInBackground
的代碼放在這裏。
作爲java FileNotFoundException
我第一次沒有給我太多的信息,我發現如何使用getErrorStream
瞭解更多。
InputStream in;
int resCode;
try {
URL url = new URL("http://webservices.ns.nl/ns-api-treinplanner?fromStation=Roosendaal&toStation=Eindhoven");
String userCredentials = "username:password";
String encoding = new String(android.util.Base64.encode(userCredentials.getBytes(), Base64.DEFAULT));
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestProperty("Authorization", "Basic " + encoding);
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
try {
resCode = urlConnection.getResponseCode();
if (resCode == HttpURLConnection.HTTP_OK) {
Log.i("rescode","ok");
in = urlConnection.getInputStream();
} else {
Log.i("rescode","not ok");
in = urlConnection.getErrorStream();
}
BufferedReader bufferedReader = new BufferedReader(
new InputStreamReader(in));
StringBuilder stringBuilder = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
stringBuilder.append(line).append("\n");
}
bufferedReader.close();
return stringBuilder.toString();
}
finally{
urlConnection.disconnect();
}
}
catch(Exception e) {
Log.e("ERROR", e.getMessage(), e);
return null;
}
然後,在onPostExecute
我打印的反應,但我得到的迴應是
<?xml version="1.0"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" soap:encodingStyle="http://www.w3.org/2003/05/soap-encoding">
<soap:Header></soap:Header>
<soap:Body><soap:Fault>
<faultcode>soap:Server</faultcode>
<faultstring>006:No customer found for the specified username and password</faultstring></soap:Fault>
</soap:Body></soap:Envelope>
這當然是不對的,它應該給一個完整的XML在這種情況下,一列火車航程推薦。
我用我的瀏覽器進行了測試,並且使用了一個名爲Postman的HTTP請求工具,它返回了正確的xml,所以所有的URI,參數,用戶名和密碼都是正確的。