作为我们的活动，我们得到了这种json，并被要求在android中的自定义列表视图中显示它。然而，错误表明索引2超出了范围。我是安卓编程的新手，请帮帮我。
JSON如下：-
{
"result": {
"status": "1",
"message": "SUCCESS",
"total_course": 8,
"course": [{
"course_id": "3",
"parent_course_id": "0",
"course_name": "PRINCE2 (Foundation and Practitioner)",
"course_price": "24000",
"course_price_doller": "140",
"course_price_discunt": "22000",
"course_price_discunt_doller": "220",
"course_discunt_date": "2016-04-04",
"course_description": "We are an expert training organization with our faculty having vast experience in consulting and training accredited by Peoplecert on behalf of Axelos.rnThis program is for 3 full days.rnrnXellentro has one of the best Project Management Professionals with large experience of project management training and consulting in this subject across the globe.",
"course_image": "http://arrisofttech.com/2016/xellentroapp/assets/uploads/course/SL571531558C660_COURSE_228x80.png",
"total_module": 3,
"module": [{
"module_id": "14",
"video_price": "12",
"video_price_doller": "11",
"video_price_discunt": "123",
"video_price_discunt_doller": "12",
"video_discunt_date": "2016-02-03",
"video_type": "1",
"video_link": "arrisofttech.com/2016/xellentroapp/video/sample_2.mp4",
"video_image": "http://arrisofttech.com/2016/xellentroapp/assets/uploads/course/SL571531558C660_COURSE_228x80.png",
"video_description": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
}, {
"module_id": "12",
"video_price": "12",
"video_price_doller": "11",
"video_price_discunt": "123",
"video_price_discunt_doller": "12",
"video_discunt_date": "2016-02-03",
"video_type": "0",
"video_link": "https://www.youtube.com/watch?v=QSaWoca3SjY&list=RDQSaWoca3SjY",
"video_image": "http://arrisofttech.com/2016/xellentroapp/assets/uploads/course/SL571531558C660_COURSE_228x80.png",
"video_description": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
}, {
"module_id": "13",
"video_price": "12",
"video_price_doller": "11",
"video_price_discunt": "123",
"video_price_discunt_doller": "12",
"video_discunt_date": "2016-02-03",
"video_type": "0",
"video_link": "https://www.youtube.com/watch?v=QSaWoca3SjY&list=RDQSaWoca3SjY",
"video_image": "http://arrisofttech.com/2016/xellentroapp/assets/uploads/course/SL571531558C660_COURSE_228x80.png",
"video_description": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
}]
}, {
"course_id": "1",
"parent_course_id": "0",
"course_name": "Management of Portfolio (MoP)",
"course_price": "51000",
"course_price_doller": "510",
"course_price_discunt": "40000",
"course_price_discunt_doller": "400",
"course_discunt_date": "2016-08-09",
"course_description": "We are an expert training organization with our faculty having vast experience in consulting and training accredited by Peoplecert on behalf of Axelos.rnThis program is for 3 full days.rnrnXellentro has one of the best Project Portfolio Management Professionals with large experience of project management and consulting in the area across the globe for large organizations and governments.",
"course_image": "http://arrisofttech.com/2016/xellentroapp/assets/uploads/course/SL5715320A694D7_COURSE_128x64.jpg",
"total_module": 2,
"module": [{
"module_id": "11",
"video_price": "12",
"video_price_doller": "11",
"video_price_discunt": "123",
"video_price_discunt_doller": "12",
"video_discunt_date": "2016-02-03",
"video_type": "0",
"video_link": "https://www.youtube.com/watch?v=QSaWoca3SjY&list=RDQSaWoca3SjY",
"video_image": "http://arrisofttech.com/2016/xellentroapp/assets/uploads/course/SL5715320A694D7_COURSE_128x64.jpg",
"video_description": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
}, {
"module_id": "10",
"video_price": "12",
"video_price_doller": "11",
"video_price_discunt": "123",
"video_price_discunt_doller": "12",
"video_discunt_date": "2016-02-03",
"video_type": "0",
"video_link": "https://www.youtube.com/watch?v=QSaWoca3SjY&list=RDQSaWoca3SjY",
"video_image": "http://arrisofttech.com/2016/xellentroapp/assets/uploads/course/SL5715320A694D7_COURSE_128x64.jpg",
"video_description": "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum."
}]
}]
}
}
代码：-
Volley.newRequestQueue(getActivity()).add(new JsonObjectRequest(Request.Method.GET, url, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
hidePDialog();
try {
JSONObject result = response.getJSONObject("result");
JSONArray jsonArray = result.getJSONArray("course");
System.out.println("Course: == >" + result.getJSONArray("course"));
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject trainingObj = jsonArray.getJSONObject(i);
Movie movie = new Movie();
movie.setCourse_id(trainingObj.getString("course_id"));
movie.setParent_course_id(trainingObj.getString("parent_course_id"));
movie.setCourse_name(trainingObj.getString("course_name"));
movie.setCourse_price(trainingObj.getString("course_price"));
movie.setCourse_price_dollar(trainingObj.getString("course_price_doller"));
movie.setCourse_price_discount_dollar(trainingObj.getString("course_price_discunt_doller"));
movie.setCourse_discount_date(trainingObj.getString("course_discunt_date"));
movie.setCourse_description(trainingObj.getString("course_description"));
movie.setCourse_image(trainingObj.getString("course_image"));
JSONArray module = trainingObj.getJSONArray("module");
for (int j = 0; j < module.length(); j++) {
JSONObject moduleObj = module.getJSONObject(i);
movie.setModule_id(moduleObj.getString("module_id"));
movie.setVideo_price(moduleObj.getString("video_price"));
movie.setVideo_price_doller(moduleObj.getString("video_price_doller"));
movie.setVideo_price_discunt(moduleObj.getString("video_price_discunt"));
movie.setVideo_price_discunt_doller(moduleObj.getString("video_price_discunt_doller"));
movie.setVideo_discunt_date(moduleObj.getString("video_discunt_date"));
movie.setVideo_type(moduleObj.getString("video_type"));
movie.setVideo_link(moduleObj.getString("video_link"));
movie.setVideo_image(moduleObj.getString("video_image"));
movie.setVideo_description(moduleObj.getString("video_description"));
}
trainingList.add(movie);
//
System.out.println("Setting up in ListView");
// System.out.println("Result:- " + newsId + " " + dateTime + " " + newsType + " " + title + " " + description + " " + mainImageURL);
}
} catch (JSONException e) {
e.printStackTrace();
}
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
new AlertDialog.Builder(getActivity())
.setTitle("No Connectivity ")
.setMessage("Please check your internet connectivity!")
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// continue with delete
}
})
//.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
//public void onClick(DialogInterface dialog, int which) {
// do nothing
//}
//})
.setIcon(android.R.drawable.ic_dialog_alert)
.show();
hidePDialog();
}
}));
日志：-
05-03 03:36:17.019 25234-25234/com.sentechlabs.xellentroapp W/System.err: org.json.JSONException: Index 2 out of range [0..2)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at org.json.JSONArray.get(JSONArray.java:293)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at org.json.JSONArray.getJSONObject(JSONArray.java:521)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at com.sentechlabs.xellentroapp.TrainingFragment$1.onResponse(TrainingFragment.java:99)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at com.sentechlabs.xellentroapp.TrainingFragment$1.onResponse(TrainingFragment.java:72)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at android.os.Handler.handleCallback(Handler.java:815)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at android.os.Handler.dispatchMessage(Handler.java:104)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at android.os.Looper.loop(Looper.java:194)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5651)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at java.lang.reflect.Method.invoke(Native Method)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at java.lang.reflect.Method.invoke(Method.java:372)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
05-03 03:36:17.020 25234-25234/com.sentechlabs.xellentroapp W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
您在内部循环中使用了错误的计数器变量。应为getJSONObject(j):
for (int j = 0; j < module.length(); j++) {
JSONObject moduleObj = module.getJSONObject(i);