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我正在開發一個簡單的android應用程序,需要獲取併發布數據到自行開發的web api。起初,我的工作就像一個魅力,但重新啓動和更新我的iMac後,事實證明,該應用程序不再像以前一樣工作。Android應用程序:asynchttpclient unknownhostexception
返回以下錯誤Android Studio中:的java.net.UnknownHostException:無法解析主機 「sensor.creatiefingewikkeld.com」:沒有與主機名關聯的地址
這是我SensorRestClient API類:
public class SensorRestClient {
private static final String BASE_URL = "http://sensor.creatiefingewikkeld.com/";
private static AsyncHttpClient client = new AsyncHttpClient();
public static void get(Context context, String url, Header[] headers, RequestParams params,
AsyncHttpResponseHandler responseHandler) {
Log.i("tester inside get",getAbsoluteUrl(url));
client.get(context, getAbsoluteUrl(url), headers, params, responseHandler);
}
public static void post(Context context, String url, RequestParams params,
AsyncHttpResponseHandler responseHandler){
client.post(getAbsoluteUrl(url), params, responseHandler);
}
private static String getAbsoluteUrl(String relativeUrl) {
return BASE_URL + relativeUrl;
}
}
這是我的MainActivity類別:
public class MainActivity extends AppCompatActivity {
private ListView dataList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getData();
//postData();
}
private void getData() {
List<Header> headers = new ArrayList<Header>();
headers.add(new BasicHeader("Accept", "application/json"));
SensorRestClient.get(MainActivity.this, "api/get", headers.toArray(new Header[headers.size()]),
null, new JsonHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, JSONArray response) {
ArrayList<SensorData> dataArray = new ArrayList<SensorData>();
SensorDataAdapter dataAdapter = new SensorDataAdapter(MainActivity.this, dataArray);
Log.i("e","e");
for (int i = 0; i < response.length(); i++) {
try {
dataAdapter.add(new SensorData(response.getJSONObject(i)));
} catch (JSONException e) {
e.printStackTrace();
}
}
dataList = (ListView) findViewById(R.id.list_notes);
dataList.setAdapter(dataAdapter);
}
@Override
public void onFailure(int statusCode, Header[] headers, String res, Throwable t) {
Log.i("StatusCode:" , String.valueOf(statusCode) );
}
});
}
private void postData(){
RequestParams params = new RequestParams();
params.put("kind", "Temperature");
params.put("title", "Test from android");
params.put("data", "28");
SensorRestClient.post(MainActivity.this, "api/post", params,
new JsonHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, JSONArray response) {
Log.i("Status-Posted: ", String.valueOf(statusCode));
}
}
);
}
}
我也使用適配器列表視圖,但我不認爲代碼是nece現在爲止。
我希望有人能幫我解決這個問題,因爲。
仍然遇到同樣的問題..我不明白這裏的問題是什麼。 –