Question

我需要在response api post中获取value元素，我收到的答复是json，下面是示例：

public void postJsonToServer() throws JSONException {
        JSONObject js = createJsonObject();
        String url = "http://link/User";
        JsonObjectRequest jsonObjReq = new JsonObjectRequest(com.android.volley.Request.Method.POST, url, js, new com.android.volley.Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                Log.d(TAG, response.toString());
                try {
                    String as = response.getString("Planta");
                } catch (JSONException e) {
                    e.printStackTrace();
                }

响应：

{"Codigo":200,"Mensaje":"Usuario validado","Nombre":"Luis Smith","ClaveNom":"9633","Planta":"SIN","Indicador":"","Listado":""}

如何获取Planta和Indicador元素？

下一行返回null，我不知道该怎么办，请帮帮我。

 String as = response.getString("Planta");

谢谢

Answer 1

您可以尝试

try {
   JSONObject responseOBJ = new JSONObject(String.valueOf(response));
   if(responseOBJ.has(responseOBJ.getString("Planta"))
   {
     String as = responseOBJ.getString("Planta");
   }
   
} catch (JSONException e) {
    e.printStackTrace();
}

如何在JSON响应中获取价值

1 个答案: