i have this input:
[
"1",
"2",
"3",
"5",
"6",
"9",
"10"
]
Could anyone tell me how to parse this kind of json file, that I get from the web? It doesn't have any key for the attribute or something like that.
Try this..
JSONArray array = new JSONArray(response); // get the response as JSONArray
for(int i=0; i < array.length(); i++)
{
Log.v("ALL--", array.getString(i)); // get the values as string using for loop
}
With org.json package, like this (assuming it is in a string):
JSONArray myJSONArray = new JSONArray(inputString);
You can then get the individual elements using:
myJSONArray.getString(i);
You are having JSONArray as your response string so you need to create JSONArray for that
JSONArray jsonArray = new JSONArray(responseString);
Now, you can retrieve the values by their index positions.like,
for(int i = 0; i < jsonArray.length(); i++){
String value = jsonArray.getString(i);
}
Complete code to parse this JSON is,
JSONArray jsonArray = new JSONArray(responseString);
for(int i = 0; i < jsonArray.length(); i++){
String value = jsonArray.getString(i);
}
Related
I want to get some json data for my android app from a website that shows it like this:
[ {"id":"33333", "title":"My title" },
{"id":"33344", "title":"My title 2" },
...
]
I have seen some tutorials but i dont realy understand how you can get aal the info in { }.
I have something like this:
for (int i = 0; i < jsonObj.length(); i++) {
String id = jsonObj.getJSONObject("part").getString("id");
}
But it does not work.
What am i doing wrong?
For you specific array there, you need something like this:
JSONArray jsonArray = new JSONArray(your_returned_json_string);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObj = jsonArray.getJSONObject(i);
if (!jsonObj.isNull("id")) {
// do something with id
}
if (!jsonObj.isNull("title")) {
// do something with title
}
}
Pretty simple.
Consider the following is your JSON Array named jsonArray
[
{"id":"33333", "title":"My title" },
{"id":"33344", "title":"My title 2" },
.....
]
You have JSON objects inside this array all of which have a similar format. Hence you need to extract them one by one. This is where the for loop comes into play.
for(int i=0 ; i < jsonArray.length(); i++)
{
JSONObject jsonObject = jsonArray.getJSONObject(i); //Get each JSONObject
//Now jsonObject will contain 'i'th jsonObject
//Extracting data from each object will be something like
int id = jsonObject.getInt("id"); //3333
String title = jsonObject.getString("title"); //My title
}
String json =
[
{"a":{"aa":"string","ab":"string"} },
{"b":{"ba":"string","bb":"string"} }
]
I am trying to parse this data using JsonObject.
When i use this code :
JSONStringer Js= new JSONStringer(json);
Log.d("json", ""+Js);
it gives me this : (the first line of json but i want all data)
{"a":{"aa":"string","ab":"string"} }
How can I read this with Android ?
It is a JsonArray not a simple JsonObject
try this:
JSONArray a = new JSONArray(json);
for (int i = 0; i < a.length(); i++) {
JSONObject row = a.getJSONObject(i);
Log.d("json", ""+row);
}
Actually, this JSON is kind of weird, as it wraps the array objects into one additional object each ("a" and "b"), which will make it hard to parse. It should look like this:
String json = [ {"name":"a","aa":"string","ab":"string"},
{"name":"b","ba":"string","bb":"string"} ]
And then you would parse it like this:
JSONArray root = new JSONArray(jsonString); //this is the above string
for(int i = 0; i < root.length(); i++){
JSONObject current = root.getJSONObject(i);
//Do the parsing here
}
I want below process on with out editing on server side
I followed this example
but over there he is calling data with one json object from a url
called "worldpopulation",..
but i have a Json data which is having lot of Json objects and arrays,.. like below code
{ "getting data":"ok"
"Todays":population
{"results"{[
"worldpopulation":
[
{
"rank":1,"country":"China",
"population":"1,354,040,000",
"flag":["http://www.androidbegin.com/tutorial/flag/china.png"]
},
{
"population":{
[
"countrypulation" {
"rank":2,"country":"India",
"population":"1,210,193,422",
"flag":["http://www.androidbegin.com/tutorial/flag/india.png"]
},
like that i have a lot of data i want this data in that above example. Without changing any thing on server side,.. or Restful service,..
thank you
response
JSONObject JObject = new JSONObject(response);
String getting_data = JObject.getstring("getting data");
String Todays= JObject.getstring("Todays");
JsonArray results =JObject.getjsonarray("results");
for(int i = 0 ; i < results.length(); i++){
JsonObject resultsobject =results.getjsonobject(i);
JsonArray worldpopulation
=resultsobject.getjsonarray("worldpopulation");
for(int j = 0 ; j < worldpopulation.length(); j++){
JsonObject worldpopulationobject =worldpopulation.getjsonobject(j);
JsonObject emptyobject =worldpopulationobject.getjsonobject("");
String rank=emptyobject .getstring("rank");
String population=emptyobject .getstring("population");
JsonArray flagarray =countrypulation.getjsonarray(flag);
for(int n = 0 ; n < flagarray.length(); n++){
JsonObject flagarrayobject =flag1array.getjsonobject(n);
String flag=flag1arrayobject .getstring("flag");
}
JsonObject populationobject
=worldpopulationobject.getjsonobject("population");
JsonArray emptyarray =JObject.getjsonarray("");
for(int k = 0 ; k < emptyarray.length(); k++){
JsonObject emptyarrayobject =emptyarray.getjsonobject(k);
JsonObject
countrypulation=emptyarrayobject.getjsonobject("countrypulation");
String rank1=countrypulation .getstring("rank");
String country=countrypulation .getstring("country");
String population1=countrypulation .getstring("population");
JsonArray flag1array =countrypulation.getjsonarray(flag);
for(int m = 0 ; m < flag1array.length(); m++){
JsonObject flag1arrayobject =flag1array.getjsonobject(m);
String flag1=flag1arrayobject .getstring("flag");
}
}
}
}
You parse
{
...
}
as JSONObject and
[
...
]
as JSONArray. JSONArray contains your objects. From the JSONObject you can retrieve the property values.
JSONArray response = new JSONArray('your json string');
for (int i = 0; i < response.length(); i++) {
response.getJSONObject(i).getString("property"));
}
BTW your json is invalid, event if you close the missing brackets. Check it here http://jsonlint.com/
I'm trying to take the following string that I got as a json object:
[
{
"id": "picture1",
"caption": "sample caption",
"picname": "sample picture name"
}
]
and turn it into a array so I can populate a list
I've tried turning it into a jsonarray by doing this:
JSONArray myjsonarray = myjson.toJSONArray(string_containing_json_above);
but that didn't seem to work.
==============
Here is full code with the working solution
myjson = new JSONObject(temp);
String String_that_should_be_array = myjson.getString("piclist");
JSONArray myjsonarray = new JSONArray(String_that_should_be_array);
For(int i = 0; i < myjsonarray.length(); i++){
JSONObject tempJSONobj = myjsonarray.getJSONObject(i);
showToast(tempJSONobj.get("caption").toString());
}
temp is the json from the server
Issue is here:
JSONArray myjsonarray = myjson.toJSONArray(temparray);
Solution:
JSONArray myjsonarray = new JSONArray(myJSON);
// myJSON is String
Now here you are having JSONArray, iterate over it and prepare ArrayList of whatever types of you want.
here you get JSONArray so change
JSONArray myjsonarray = myjson.toJSONArray(temparray);
line as shown below
JSONArray jsonArray = new JSONArray(readlocationFeed);
and after
JSONArray jsonArray = new JSONArray(readlocationFeed);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject explrObject = jsonArray.getJSONObject(i);
explrObject.getString("caption");
}
JSONArray isn't working because the JSON you provided is not an array. You can read more about JSON syntax here: http://www.w3schools.com/json/json_syntax.asp
In the meantime, you could manually create your array by paring the JSON one string at a time.
JSONObject strings = new JSONObject(jsonString);
String array[] = new String[5];
if (jsonString.has("id"){
array[0] = jsonString.getString("id");
}
if (jsonString.has("caption"){
array[1] = jsonString.getString("caption");
}
...
etc.
i want to extract the given json arry in android,
[{"Outofserviceday":{"outofservice":"2013-02-22"}},
{"Outofserviceday":{"outofservice":"2013-02-27"}},
{"Outofserviceday":{"outofservice":"2013-02-28"}}]
i have the code for extracting the json data like given below
[{"Requestcard":{"id":"994","userprofile_id":"14","userprofile_name":"Syed
Imran","company_name":"DLF Akruti Park, Hinjewadi, Pune,
Maharashtra","sex":"male","travel_date":"2013-02-12"}}]
in this case we can retrive the json boject using the code
JSONObject menuObject = json_data.getJSONObject("Requestcard");
and retrieve each element by
requestid= menuObject.getString("id");
But in the first case how we identify each Outofserviceday in the json array ? and How extract each data ???
you can do something like below, can create jsonArray from string json data and then can extracts json objects in a loop or so.
String json =" [{\"Outofserviceday\":{\"outofservice\":\"2013-02-22\"}}]"; //json-data which is basically a json array
JSONArray jArray = new JSONArray(json); / creating an jsonarray
for (int i = 0; i < jArray.length(); i++) {
// you can have jsonObject from json array here in the loop
}
Try this:
JSONObject json = new JSONObject(result);
JSONArray json1= json.getJSONArray("data");
if (json1.length()!=0) {
for (int i = 0; i < json1.length(); i++) {
String name = json1.getJSONObject(i).getString("name");
}
}
With the help of below code you can retrieve the value of outofservice
JSONArray jArray = new JSONArray(your data);
for (int i = 0; i < jArray.length(); i++) {
JSONObject jOutOfServiceDay = jArray.getJSONObject(i);
JSONObject jobj = jOutOfServiceDay.getJSONObject("Outofserviceday");
Log.i("Required data is:", "" + jobj.getString("outofservice"));
}