如何使用android和Java中的Volley库在android中检索该响应 来自API的所有数据

上面的数据是API响应，我想使用JavaAndroid中的Volley库获取这些数据

我的Java代码 下面的代码是从我的API获取数据的java方法

private void loadExpenseFromApi(){
     StringRequest sr = new StringRequest(Request.Method.GET, Constants.EXPENSE_URL, new Response.Listener<String>() {
         @Override
         public void onResponse(String response) {
             try {
                 JSONObject jo = new JSONArray(response);
                 for(int i=0; i< jo.length(); i++) {
                     ListExpenses le = new ListExpenses(
                             jo.getInt("id"),
                             jo.getString("category"),
                             jo.getString("description"),
                             jo.getInt("amount"),
                             jo.getString("date")
                     );
                 }

             } catch (JSONException e) {
                 e.printStackTrace();
             }
         }
     }, new Response.ErrorListener() {
         @Override
         public void onErrorResponse(VolleyError error) {
             error.printStackTrace();
         }
     }

     );
 }

private void loadExpenseFromApi（）{
StringRequest sr=new StringRequest（Request.Method.GET，Constants.EXPENSE\u URL，new Response.Listener（））{
@凌驾
公共void onResponse（字符串响应）{
试一试{
JSONObject jo=新的JSONArray（响应）；
对于（int i=0；i

我将

StringRequest sr=newstringrequest（Request.Method.GET，Constants.EXPENSE\u URL，new Response.Listener（）{

替换为一个名为JsonArrayRequest的类来调用API

JsonArrayRequest jar=newjsonarrayrequest（Constants.EXPENSE\u URL，new Response.Listener（）{

完整代码如下所示

private void loadExpenseFromApi（）{
JsonArrayRequest jar=新的JsonArrayRequest（Constants.EXPENSE\u URL，new Response.Listener（））{
@凌驾
公共void onResponse（JSONArray响应）{
试一试{
对于（int i=0；i

private void loadExpenseFromApi(){
     StringRequest sr = new StringRequest(Request.Method.GET, Constants.EXPENSE_URL, new Response.Listener<String>() {
         @Override
         public void onResponse(String response) {
             try {
                 JSONObject jo = new JSONArray(response);
                 for(int i=0; i< jo.length(); i++) {
                     ListExpenses le = new ListExpenses(
                             jo.getInt("id"),
                             jo.getString("category"),
                             jo.getString("description"),
                             jo.getInt("amount"),
                             jo.getString("date")
                     );
                 }

             } catch (JSONException e) {
                 e.printStackTrace();
             }
         }
     }, new Response.ErrorListener() {
         @Override
         public void onErrorResponse(VolleyError error) {
             error.printStackTrace();
         }
     }

     );
 }

private void loadExpenseFromApi(){

     JsonArrayRequest jar = new JsonArrayRequest(Constants.EXPENSE_URL, new Response.Listener<JSONArray>() {
         @Override
         public void onResponse(JSONArray response) {
             try {
                 for(int i=0; i< response.length(); i++) {
                     JSONObject jo = response.getJSONObject(i);
                     ListExpenses le = new ListExpenses(
                             jo.getString("id"),
                             jo.getString("category"),
                             jo.getString("description"),
                             jo.getString("amount"),
                             jo.getString("date")
                     );
                     listExpense.add(le);
                     adapter = new ExpenseAdapter(listExpense, getContext());
                     recyclerView.setAdapter(adapter);

                 }

             } catch (JSONException e) {
                 e.printStackTrace();
             }
         }
     }, new Response.ErrorListener() {
         @Override
         public void onErrorResponse(VolleyError error) {
             Log.e("Volley", error.toString());
             error.printStackTrace();
         }
     }
     );
     RequestHandler.getInstance(getContext()).addToRequestQueue(jar);
 }