我在向服务器发送排球请求时遇到一些错误......任何人都可以帮助我

Question

我想将对象列表转换成json数组，然后将此数组传递到服务器上进行提交我尝试了很多次但失败了我认为主要问题在于我可以将对象列表转换为 json 数组的部分。请查看代码和错误并指导我谢谢

尝试{

                        final ProgressDialog progress = new ProgressDialog(getContext());
                        progress.setTitle("Submitting Leave");
                        progress.setMessage("Loading...");
                        progress.setCancelable(false); // disable dismiss by tapping outside of the dialog
                        progress.show();

//                        jsonObject.put("dayList",leaveDayListArrayList);

//                     JSONArray jsonArray55 = new JSONArray(utils.leaveStaEndDTOList);
                        JSONArray jsonArray33 = new JSONArray();


                     for (int j=0; j<=utils.leaveStaEndDTOList.size() ; j++ ){

                         JSONObject jsonObject1 = new JSONObject();
                         jsonObject1.put("afternoonValue",utils.leaveStaEndDTOList.get(j).getAfternoonValue());
                         jsonObject1.put("date",utils.leaveStaEndDTOList.get(j).getDate());
                         jsonObject1.put("day",utils.leaveStaEndDTOList.get(j).getDay());
                         jsonObject1.put("dayCode",utils.leaveStaEndDTOList.get(j).getDayCode());
                         jsonObject1.put("holyday",utils.leaveStaEndDTOList.get(j).getHolyday());
                         jsonObject1.put("month",utils.leaveStaEndDTOList.get(j).getMonth());
                         jsonObject1.put("morningValue",utils.leaveStaEndDTOList.get(j).getMorningValue());
                         jsonObject1.put("weekend",utils.leaveStaEndDTOList.get(j).getWeekend());
                         jsonObject1.put("year",utils.leaveStaEndDTOList.get(j).getYear());
                         jsonArray33.put(jsonObject1);

                     }

                        jsonObject.put("dayList",jsonArray33);
                        jsonObject.put("endDate",utils.creLeaveEndDate);
                   jsonObject.put("fileData","data:image/jpeg;base64,"+utils.creLeaveFile);
                        jsonObject.put("resourceId",utils.creLeaveResourceId);
                        jsonObject.put("startDate",utils.creLeaveStartDate);
                        jsonObject.put("statusId",utils.creLeaveStatusId);
                        jsonObject.put("title",utils.creLeaveTitle);
                        jsonObject.put("total",utils.creLeaveTotal);
                        jsonObject.put("typeId",utils.creLeaveTypeId);
                        jsonObject.put("year",utils.creLeaveYear);

                        //        jsonObject.put("leaveId",utils.creLeaveId);

                        JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(
                                Request.Method.POST, "url", jsonObject, new Response.Listener<JSONObject>() {
                            @Override
                            public void onResponse(JSONObject response) {

                                Toast.makeText(getContext(), "Successfully added expense", Toast.LENGTH_SHORT).show();
                                progress.dismiss();
                                final Fragment expenseFragmentList=new ExpenseFragmentList();
                                getFragmentManager().beginTransaction().replace(R.id.fragmentContainerEx,
                                        expenseFragmentList,expenseFragmentList.getClass().getSimpleName())
                                        .addToBackStack(null).commit();
                            }
                        }, new Response.ErrorListener() {
                            @Override
                            public void onErrorResponse(VolleyError error) {
                                progress.dismiss();
                                Toast.makeText(getContext(), error.toString(), Toast.LENGTH_SHORT).show();

                            }
                        }
                        ){
                            @Override
                            public Map<String, String> getHeaders() {


                                Map<String, String> params = new HashMap<String, String>();
                                params.put("Accept", "application/json");
                                params.put("Authorization",utils.bear + user_token);
                                return params;
                            }
                        };

                        queue.add(jsonObjectRequest);

                    }catch (JSONException e){

                        Toast.makeText(getContext(), e.toString(), Toast.LENGTH_SHORT).show();

                    }
                }

这是我的代码错误，在我将对象列表传递到 json数组

时显示

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.sprintsols.Pajita, PID: 22480
    java.lang.IndexOutOfBoundsException: Invalid index 4, size is 4
        at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255)
        at java.util.ArrayList.get(ArrayList.java:308)
        at com.sprintsols.Pajita.Fragments.LeavesFragment.onClick(LeavesFragment.java:304)
        at android.view.View.performClick(View.java:5184)
        at android.view.View$PerformClick.run(View.java:20910)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:145)
        at android.app.ActivityThread.main(ActivityThread.java:5942)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Process 22480 terminated.

这是错误

{
  "dayList": [
    {
      "afternoonValue": 0,
      "date": "yyyy-MM-dd",
      "day": 0,
      "dayCode": "string",
      "holyday": true,
      "id": 0,
      "month": 0,
      "morningValue": 0,
      "weekend": true,
      "year": 0
    }
  ],
  "endDate": "yyyy-MM-dd",
  "fileData": "string",
  "leaveId": 0,
  "resourceId": 0,
  "startDate": "yyyy-MM-dd",
  "statusId": 0,
  "title": "string",
  "total": 0,
  "typeId": 0,
  "year": 0
}

这是我要发送到服务器的json正文

Answer 1

每当遇到错误时，请先仔细阅读错误日志。大多数情况下，该问题已在此处明确提及。

java.lang.IndexOutOfBoundsException: Invalid index 4, size is 4

例如，这里的错误清楚地表明您正在越界，即试图访问数组中不存在的索引。

现在，在查看所有数组迭代之后，我们可以看到您在从 0 迭代到长度时向 JSONArray "jsonArray33" 添加元素。但是，我们知道，列表的索引从 0 开始，直到长度为 1（不是长度）。

所以，你必须更正这个：

for (int j = 0; j < utils.leaveStaEndDTOList.size(); j++)
{
     // code...
}

希望对您有所帮助。

Answer 2

for (int j=0; j<=utils.leaveStaEndDTOList.size() ; j++ ) 这一行应该是 for (int j=0; j

我在向服务器发送排球请求时遇到一些错误......任何人都可以帮助我

I have some errors in sending volley request to the server ...Anyone can help me

java

android

json

android-volley