Develop Reference

how can i store muliple rows in JsonArray?

The problem is that in first row data save normally but in second row or move on data redundant Like:
public void Save(){
String register;
JSONObject jsonObj;
JSONObject json;
JSONArray jsonTempArray = new JSONArray();
JSONObject jsonObject=new JSONObject();
JSONArray jsonArray=new JSONArray();
try{
JSONObject jsonObjs=new JSONObject();
jsonObj=new JSONObject();
json=new JSONObject();
Integer.valueOf(mGeneralID);
str_UpdatedGeneralID= "6832";
String str_FMeasurementSamplesize = "";
if (txtFMeasurementSamplesize.getText().toString().equals("")){
str_FMeasurementSamplesize = "0";
}else {
str_FMeasurementSamplesize = txtFMeasurementSamplesize.getText().toString();
}
String Samplesize = txt_Sample_Size.getText().toString();
String Qtypersize = txt_Qty_per_Size.getText().toString();
String TotalnoofmeasPointsizeA = txtTotalnoOfmeasPointsizeA.getText().toString();
String TotalnoofmeasPointsizeAA = txtTotalnoOfmeasPointsizeAA.getText().toString();
String TotalnoofmeasPointsizeB = txtTotalnoOfmeasPointsizeB.getText().toString();
String TotalnoofmeasPointsizeBB = txtTotalnoOfmeasPointsizeBB.getText().toString();
String NomeasurementptoutoftolA = txtNomeasurementptoutoftolA.getText().toString();
String NomeasurementptoutoftolB = txtNomeasurementptoutoftolB.getText().toString();
String PASS = txt_pass.getText().toString();
String Fail = txt_fail.getText().toString();
String Pending = txt_pending.getText().toString();
String Remarks = txt_Remarks_F.getText().toString();
DateFormat df = new SimpleDateFormat("YYYY-MM-DD hh:mm:ss");
String CreationDate = df.format(Calendar.getInstance().getTime());
int a =0;
for (int i=0; i < MeasurementArrayList.size(); i++){
String MeasurementSheetDetailID = MeasurementArrayList.get(i).getmeasurementSheetDetailID();
String MeasurementPointID = MeasurementArrayList.get(i).getmeasurementPointID();
String MeasurementPoints = MeasurementArrayList.get(i).getmeasurementPoints();
String SpecSizeA = MeasurementArrayList.get(i).getSpecSizeA();
String SpecSizeAOne = MeasurementArrayList.get(i).getSpecSizeAOne();
String SpecSizeATwo = MeasurementArrayList.get(i).getSpecSizeATwo();
String SpecSizeAThree = MeasurementArrayList.get(i).getSpecSizeAThree();
String SpecSizeAFour = MeasurementArrayList.get(i).getSpecSizeAFour();
String SpecSizeAFive = MeasurementArrayList.get(i).getSpecSizeAFive();
String SpecSizeB = MeasurementArrayList.get(i).getSpecSizeB();
String SpecSizeBOne = MeasurementArrayList.get(i).getSpecSizeBOne();
String SpecSizeBTwo = MeasurementArrayList.get(i).getSpecSizeBTwo();
String SpecSizeBThree = MeasurementArrayList.get(i).getSpecSizeBThree();
String SpecSizeBFour = MeasurementArrayList.get(i).getSpecSizeBFour();
String SpecSizeBFive = MeasurementArrayList.get(i).getSpecSizeBFive();
String Tolerance = MeasurementArrayList.get(i).gettolerance();
jsonObj.put("MeasurementSheetID", str_FMeasurementSamplesize);
jsonObj.put("GeneralID", str_UpdatedGeneralID);
jsonObj.put("Samplesize", Samplesize);
jsonObj.put("Measurement", str_sp_Measurement);
jsonObj.put("Qtypersize", Qtypersize);
jsonObj.put("Color", str_sp_Color);
jsonObj.put("SpecSizeA", str_sp_SpecSizeA);
jsonObj.put("SpecSizeB", str_sp_SpecSizeB);
jsonObj.put("TotalnoofmeasPointsizeA",TotalnoofmeasPointsizeA);
jsonObj.put("TotalnoofmeasPointsizeAA", TotalnoofmeasPointsizeAA);
jsonObj.put("TotalnoofmeasPointsizeB", TotalnoofmeasPointsizeB);
jsonObj.put("TotalnoofmeasPointsizeBB", TotalnoofmeasPointsizeBB);
jsonObj.put("NomeasurementptoutoftolA", NomeasurementptoutoftolA);
jsonObj.put("NomeasurementptoutoftolB", NomeasurementptoutoftolB);
jsonObj.put("PASS", PASS);
jsonObj.put("Fail", Fail);
jsonObj.put("Pending", Pending);
jsonObj.put("Remarks", Remarks);
jsonObj.put("CreationDate", CreationDate);
jsonObj.put("MeasurementSheetDetailID", MeasurementSheetDetailID);
jsonObj.put("MeasurementPointID", MeasurementPointID);
jsonObj.put("MeasurementPoints", MeasurementPoints);
jsonObj.put("SpecSizeA", SpecSizeA);
jsonObj.put("SpecSizeAOne", SpecSizeAOne);
jsonObj.put("SpecSizeATwo", SpecSizeATwo);
jsonObj.put("SpecSizeAThree", SpecSizeAThree);
jsonObj.put("SpecSizeAFour", SpecSizeAFour);
jsonObj.put("SpecSizeAFive", SpecSizeAFive);
jsonObj.put("SpecSizeB", SpecSizeB);
jsonObj.put("SpecSizeBOne", SpecSizeBOne);
jsonObj.put("SpecSizeBTwo", SpecSizeBTwo);
jsonObj.put("SpecSizeBThree", SpecSizeBThree);
jsonObj.put("SpecSizeBFour", SpecSizeBFour);
jsonObj.put("SpecSizeBFive", SpecSizeBFive);
jsonObj.put("Tolerance", Tolerance);
jsonTempArray.put(jsonObj);
}
jsonObject.put("jsondata",jsonTempArray);
register=jsonObject.toString();
} catch (JSONException e) {
e.printStackTrace();
return;
}
new save(register).execute();
}
Result: Both rows are same that`s the problem
Row 1
[{"MeasurementSheetID":"0","GeneralID":"6832","Samplesize":"10","Measurement":"INCH","Qtypersize":"5","Color":"Black","SpecSizeA":"6.5","SpecSizeB":"6.5","TotalnoofmeasPointsizeA":"30","TotalnoofmeasPointsizeAA":"125","TotalnoofmeasPointsizeB":"30","TotalnoofmeasPointsizeBB":"125","NomeasurementptoutoftolA":"0","NomeasurementptoutoftolB":"0","PASS":"d","Fail":"h","Pending":"k","Remarks":"g","CreationDate":"2018-11-305
05:04:28","MeasurementSheetDetailID":"0","MeasurementPointID":"2","MeasurementPoints":"BACK
POCKET POSITION POSITION OUTER
EDGE","SpecSizeAOne":"","SpecSizeATwo":"","SpecSizeAThree":"","SpecSizeAFour":"","SpecSizeAFive":"","SpecSizeBOne":"","SpecSizeBTwo":"","SpecSizeBThree":"","SpecSizeBFour":"","SpecSizeBFive":"","Tolerance":"+/-0.5"},
Row 2
{"MeasurementSheetID":"0","GeneralID":"6832","Samplesize":"10","Measurement":"INCH","Qtypersize":"5","Color":"Black","SpecSizeA":"6.5","SpecSizeB":"6.5","TotalnoofmeasPointsizeA":"30","TotalnoofmeasPointsizeAA":"125","TotalnoofmeasPointsizeB":"30","TotalnoofmeasPointsizeBB":"125","NomeasurementptoutoftolA":"0","NomeasurementptoutoftolB":"0","PASS":"d","Fail":"h","Pending":"k","Remarks":"g","CreationDate":"2018-11-305
05:04:28","MeasurementSheetDetailID":"0","MeasurementPointID":"2","MeasurementPoints":"BACK
POCKET POSITION POSITION OUTER
EDGE","SpecSizeAOne":"","SpecSizeATwo":"","SpecSizeAThree":"","SpecSizeAFour":"","SpecSizeAFive":"","SpecSizeBOne":"","SpecSizeBTwo":"","SpecSizeBThree":"","SpecSizeBFour":"","SpecSizeBFive":"","Tolerance":"+/-0.5"}]

You need to put this jsonObj=new JSONObject(); inside your loop.
So every time loop execute it will create new JSONObject and put it into JSONArray

JsonArray is composed by jsonObjects.
You need to empty jsonobject, populate it and put in jsonarray for every object in jsonArray.
jsonObj = new JSONObject();
Some documentation

Send Data of Json Array with multiple objects

JSONArray jsonArray = jo.getJSONArray("products_list");
productList = new ArrayList<>();
String ProductName = null;
String ProductQTY = null;
String ProductCost = null;
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject2 = jsonArray.getJSONObject(i);
ProductName = jsonObject2.getString("product_name");
ProductQTY = jsonObject2.getString("product_quantity");
ProductCost = jsonObject2.getString("product_cost");
}
Pname = ProductName;
Pqty = ProductQTY;
Pcost = ProductCost;
SaveProduct(BillNo, Pname, Pqty, Pcost);
and the corresponding json is-
"gstin_no": "987654321",
"products_list": [
{
"product_name": "himalaya shampoo",
"product_quantity": "20",
"product_cost": "100*product_quantity"
},
{
"product_name": "almonds",
"product_quantity": "2",
"product_cost": "400*product_quantity"
},
{
"product_name": "Rin Soap",
"product_quantity": "20",
"product_cost": "10*product_quantity"
},
{
"product_name": "himalaya shampoo",
"product_quantity": "20",
"product_cost": "100*product_quantity"
}]
I am trying to make an android app where i am scanning QR code and getting output in json format i want to send an array with multiple objects into Mysql database but when i am sending value to database i am value of last object is inserting in database . how can i insert all the objects of array into database??
How can I insert all the objects to the Mysql databse.

you are calling SaveProduct(BillNo, Pname, Pqty, Pcost);
after the for loop.so you are getting last index values.Make sure your method should be inside the loop.
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject2 = jsonArray.getJSONObject(i);
ProductName = jsonObject2.getString("product_name");
ProductQTY = jsonObject2.getString("product_quantity");
ProductCost = jsonObject2.getString("product_cost");
SaveProduct(BillNo, ProductName, ProductQTY, ProductCost);
}

So you need to make save call on your loop (json array length).
String BillNo = jo.optString("gstin_no");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject2 = jsonArray.optJSONObject(i);
String ProductName = jsonObject2.optString("product_name");
String ProductQTY = jsonObject2.optString("product_quantity");
String ProductCost = jsonObject2.optString("product_cost");
SaveProduct(BillNo, ProductName, ProductQTY, ProductCost);
}

I suggest Gson Library for better readable code
First, add this to your dependencies
implementation 'com.google.code.gson:gson:2.8.2
Second, create your product model class
public class Product {
private String product_name;
private String product_quantity;
private String product_cost;
}
just change your code with these lines
Gson gson = new Gson();
Type listType = new TypeToken<List<Product>>() {}.getType();
List<Product> productsList = new Gson().fromJson(jsonArray, listType);
then you can save productsList in database better code with a few lines and better performance

how to get json which has multiple values in a string in android

I have a json which has multiple values separated by commas which is in the
form of array.I want to get skills and platforms string separately.Can you please help me?
I want to show skills string and platforms string in text.
Please help me.
The format is:
{
"data": [
{
"skills": "ANDROID SDK, ANIMATION, ANGULARJS,",
"platforms": "IOS Application, Social Networking, Online shopping Sites, Web Application"
}
],
"status": 100
}

Try this one
try {
JSONObject ob = new JSONObject(response);
int status = ob.getInt("status");
if (status == 100) {
JSONArray ja = ob.getJSONArray("data");
for (int i = 0; i < ja.length(); i++) {
values = new HashMap<>();
JSONObject vj = ja.getJSONObject(i);
String skills = vj.getString("skills "));
String platforms=vj.getString("platforms"));
data.add(values);
}
split these 2 strings using 'split()'
List<String> skillsArray = Arrays.asList(skills.split(","));
List<String> platformsArray= Arrays.asList(platforms.split(","));

String in = "your json";
JSONObject jsonObj = new JSONObject(in);
// Getting JSON Array node
JSONArray jsonarray = jsonObj.getJSONArray("data");
for (int i = 0; i < jsonarray.length(); i++) {
JSONObject jsonobject = jsonarray.getJSONObject(i);
String skills = jsonobject.getString("skills");
String platforms = jsonobject.getString("platforms");
}

Try this
JSONObject jsonObject = new JSONObject("Your json response");
JSONArray jsonArray = jsonObject.getJSONArray("data");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonobject = jsonArray.getJSONObject(i);
String skill = jsonobject.getString("skills");
String platforms = jsonobject.getString("platforms");
String[] skillsArray = skill.split(Pattern.quote(","));
String[] platformsArray = platforms.split(Pattern.quote(","));
for (int j=0; j<skillsArray.length; j++)
{
Log.i("Skill Value ", "=" + skillsArray[j]);
}
for (int j=0; j<platformsArray.length; j++)
{
Log.i("platforms Value ", "=" + platformsArray[j]);
}
}
Output

First of all convert your output string into json. Note that output string is the string which contains your results of json format that you have posted above.following is the code on how to do that:
JSONObject myJsonResponse = new JSONObject(yourString);
The next one is Array. That is how you will get it and will iterate over it.
JSONArray jsonarray = jsonObj.getJSONArray("data");
for (int i = 0; i < jsonarray.length(); i++) {
JSONObject innerJsonObject= jsonarray.getJSONObject(i);
String skills = innerJsonObject.getString("skills");
String platforms = innerJsonObject.getString("platforms");
}
Now you have gotten your required fields and you can now perform any String functions over the String skills and platforms.
Happy coding. .

The best way is creating a model class such :
public class MyModel{
Properties [] data;
class Properties{
public String skills;
public String platforms;
}
}
then you can parse your string to model with Gson library like this :
MyModel myModel = new Gson().fromJson(yourString, MyModel.class)
so all data is in myModel object and you can access to skills with
myModel.data[0].skills
to add Gson library to your project add below to your app gradle file :
compile 'com.google.code.gson:gson:2.8.1'

You may try this,
JSONObject jsonObject = null;
try {
jsonObject = new JSONObject("JSON_STRING");
JSONArray jsonArray = jsonObject.getJSONArray("data");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonobject = jsonArray.getJSONObject(i);
String skills = jsonobject.getString("skills");
String[] seperateData = skills.split(Pattern.quote(","));
for (int j = 0; j < seperateData.length; j++) {
Log.e("Your Skill Value-> ", seperateData[j]);
}
String platforms = jsonobject.getString("platforms");
seperateData = platforms.split(Pattern.quote(","));
for (int j = 0; j < seperateData.length; j++) {
Log.e("Your Platform Value-> ", seperateData[j]);
}
}
} catch (JSONException e) {
e.printStackTrace();
}

class Data{
public String skills;
public String platforms;
}
Gson gson = new Gson();
JSONArray dataArray = response.getJSONArray("data");
List<Data> dataList= gson.fromJson(dataArray toString(), new TypeToken<List<Data>>() {
}.getType());
Try this.. It will make parsing easier.
implementation 'com.google.code.gson:gson:2.8.0'

First Parse your JSON:
JSONObject jsonObj = new JSONObject(in);
JSONArray jsonarray = jsonObj.getJSONArray("data");
for (int i = 0; i < jsonarray.length(); i++) {
JSONObject jsonobject = jsonarray.getJSONObject(i);
String skills = jsonobject.getString("skills");
String platforms = jsonobject.getString("platforms");
}
Then Split your string values:
String skills = "ANDROID SDK, ANIMATION, ANGULARJS";
String[] separated = CurrentString.split(",");
separated[0]; // this will contain "ANDROID SDK"
separated[1]; // this will contain " ANIMATION"
separated[2]; // this will contain " ANGULARJS"
You have to remove the space to the second String:
separated[1] = separated[1].trim();

Try this you will be getting all values of sapereted with commas
jsonString = getting string from server side
String[] separated = jsonString.split(",");
StringBuilder s = new StringBuilder(10000);
for (int i = 0; i < separated.length; i++) {
if (i == separated.length - 1) {
s.append(separated[i].trim() + "");
} else {
s.append(separated[i].trim() + ",\n");
}
}
//tvDisplayAddress.setText(s);
Log.e("VALUES: ",s+"");

How to set json data to list view?

I tried to add json data to listview.But i don't know how to add the json data to list adapter.
try {
mylist = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map = new HashMap<String, String>();
JSONObject jsonResponse = new JSONObject(strJson1);
JSONArray jsonMainNode = jsonResponse.optJSONArray("restaurants");
for (int i = 0; i < jsonMainNode.length(); i++) {
JSONObject jsonChildNode = jsonMainNode.getJSONObject(i);
String restName = jsonChildNode.optString("name");
Toast.makeText(getApplicationContext(), name, Toast.LENGTH_LONG).show();
if(restName.equalsIgnoreCase(name)){//this name is predefined name.
String address = jsonChildNode.optString("address");
String mobile = jsonChildNode.optString("mobile");
String direction = "Direction: "+jsonChildNode.optString("direction");
String bestTime = "Best time to visite: "+jsonChildNode.optString("bestTime");
String food = jsonChildNode.optString("food");
String dress = jsonChildNode.optString("dress");
String priceRange = "Price Range: "+jsonChildNode.optString("priceRange");
String rate = jsonChildNode.optString("Rate");
String comment = "Price Range: "+jsonChildNode.optString("comment");
map.put("restName",restName);
map.put("address",address);
map.put("mobile",mobile);
map.put("direction",direction);
map.put("bestTime",bestTime);
map.put("food",food);
map.put("dress",dress);
map.put("priceRange",priceRange);
map.put("rate",rate);
map.put("comment",comment);
mylist = new ArrayList<HashMap<String, String>>();
mylist.add(map);
}else{
Toast.makeText(getApplicationContext(), "Error", Toast.LENGTH_LONG).show();
}
}
} catch (JSONException e) {
Toast.makeText(getApplicationContext(), "Error..." + e.toString(),
Toast.LENGTH_LONG).show();
}
// ListAdapter adapter = new SimpleAdapter(getApplicationContext(),android.R.layout.simple_list_item_1,mylist);
// list.setAdapter(adapter);
}
Can anyone tel me how to set this data to list view.?

Try this..
Your doing reversely. declear the arraylist before for loop and declear the HashMap inside the for loop .
mylist = new ArrayList<HashMap<String, String>>();
JSONObject jsonResponse = new JSONObject(strJson1);
JSONArray jsonMainNode = jsonResponse.optJSONArray("restaurants");
for (int i = 0; i < jsonMainNode.length(); i++) {
JSONObject jsonChildNode = jsonMainNode.getJSONObject(i);
String restName = jsonChildNode.optString("name");
Toast.makeText(getApplicationContext(), name, Toast.LENGTH_LONG).show();
if(restName.equalsIgnoreCase(name)){//this name is predefined name.
HashMap<String, String> map = new HashMap<String, String>();
String address = jsonChildNode.optString("address");
//So on
map.put("restName",restName);
//So on
mylist.add(map);
}else{
Toast.makeText(getApplicationContext(), "Error", Toast.LENGTH_LONG).show();
}

google-gson
I would use gson for this. Check the gson project website for more details on how. This is an example for object serialisation/deserialisation:
Object Examples
class BagOfPrimitives {
private int value1 = 1;
private String value2 = "abc";
private transient int value3 = 3;
BagOfPrimitives() {
// no-args constructor
}
}
(Serialization)
BagOfPrimitives obj = new BagOfPrimitives();
Gson gson = new Gson();
String json = gson.toJson(obj);
==> json is {"value1":1,"value2":"abc"}
Note that you can not serialize objects with circular references since that will result in infinite recursion.
(Deserialization)
BagOfPrimitives obj2 = gson.fromJson(json, BagOfPrimitives.class);
==> obj2 is just like obj

Android how to get `pageid` and `title` `ns` keys from valid JSON data?

Here my valid JSON Data
{
"query": {
"pages": {
"8691": {
"pageid": 8691,
"ns": 0,
"title": "d"
}
}
}
}
this my data how to get pageid and title values.
EDIT: So I get a JSONObject pages and I want to get JSONObjects from pages, but the problem is that their name is different everytime.So I can't just do json.getJSONObject("8691");. So any suggestions how can I do that?

you can parse current json String as for getting pageid and title :
JSONObject json =new JSONObject("json string");
//get query json object
JSONObject jsonquery =json.getJSONObject("query");
//get pages json object
JSONObject jsonpages =jsonquery.getJSONObject("pages");
//get names for jsonpages
JSONArray namejsonarray = jsonpages.names();
// now get json object from jsonpages
JSONObject jsonnew =jsonpages.getJSONObject(namejsonarray.get(0));
//get pageid from jsonnew json object
String str_pageid =jsonnew.getString("pageid");
//get title from jsonnew json object
String str_title =jsonnew.getString("title");

you can try somehing like this :
JSONObject mainJson = new JSONObject("{\"query\": {\"pages\": {\"8691\": {\"pageid\": 8691,\"ns\": 0,\"title\": \"d\"}}}}");
JSONObject jsonOnb = mainJson.getJSONObject("query").getJSONObject("pages") ;
JSONObject pagesObj = jsonOnb.getJSONObject(jsonOnb.names().getString(0));
System.out.println("pageid : " + pagesObj.get("pageid"));
System.out.println("title : " + pagesObj.get("title"));
since your pageId is dynamic, you can get the name of the first index object in your JSONObject

jsonString=" {
"query": {
"pages": {
"8691": {
"pageid": 8691,
"ns": 0,
"title": "d"
}
}
}
}";
JSONObject json = new JSONObject(jsonString);
JSONObject json_query = json.getJSONObject("query");
JSONObject json_pages = json_query.getJSONObject("pages");
JSONArray pagesjsonarray = json_pages.names();
JSONObject jsonobject =json_pages.getJSONObject(pagesjsonarray.get(0));
jsonobject .get("pageid");// it will return 8691
jsonobject .get("title");// it will return d
Check this link see this

Assuming that you have already got JSONObject called pages:
final JSONObject pages = ...;
final JSONArray names = pages.names();
if (names != null && names.length() > 0) {
for (int i = 0; i < names.length(); i++) {
final String name = names.getString(i);
final JSONObject page = pages.optJSONObject(name);
if (page != null) {
final String id = page.getString("pageid");
final String ns = page.getString("ns");
final String title = page.getString("title");
System.out.println("Id " + id);
System.out.println("ns " + ns);
System.out.println("title " + title);
}
}
}