The following JSON starts with an array type which I am having a lots of problem to Parse. Please help.
[{"type":"1","name":"ABC","start_date":"5","end_date":null,"time":"00:00:00","description":"abc","venue":"","v_id":"1","c1name":"","c1phno":"","c1email":"","c2name":"","c2phno":"","c2email":""}]
Please help me out if possible.
Are you trying to get the data as a JSONArray?
It would look like this:
String json = "your json data";
JSONArray jsonArray = new JSONArray(json);
JSONObject jsonObject = jsonArray.getJSONObject(0);
String type = jsonObject.getString("type");
String name = jsonObject.getString("name");
And so on...
Well I'm new to Android. I'm getting a JSON string from a remote URL.
[{"key":"myString1","val":"myValue1"},{"key":"myString2","val":"myValue2"},{"key":"myString3","val":"myValue3"},{"key":"myString4","val":"myValue4"},{"key":"myString5","val":"myValue5"}]
I just need to parse this JSON string & display all key-val pair. I tried something like below from one of the tutorial.
JSONArray jArray = new JSONArray(str);
json = jArray.getJSONObject(0); //This will take first pair.
But I don't know the syntax for iterating through whole json object. Any help would be appreciated. Thanks in Advance.
There's nothing special in it. You do it like iterating any other array.
Let's say you have two String arrays to be filled with values: String[] mKey, mValue
Reading from JSON array will be like:
for (int i = 0; i < array.length(); i++) {
JSONObject object = array.getJSONObject(i);
mKey[i] = object.getString("key");
mValue[i] = object.getString("val");
}
I am developing the Android for Xively. I get the following text data and store into string.
{"id":111111177,"title":"G-sensor","private":"true","feed":"https://api.xively.com/v2/feeds/111111177.json","auto_feed_url":"https://api.xively.com/v2/feeds/111111177.json","status":"frozen","updated":"2014-08-05T07:14:29.783670Z","created":"2014-08-01T08:29:17.156043Z","creator":"https://xively.com/users/x22819","version":"1.0.0","datastreams":[{"id":"GPIO1","current_value":"1","at":"2014-08-05T07:14:18.991421Z","max_value":"1.0","min_value":"0.0","tags":["xyz"],"unit":{"type":"G","label":"watts"}},{"id":"GPIO2","current_value":"0","at":"2014-08-05T07:14:29.783670Z","max_value":"1.0","min_value":"0.0","tags":["xyz"],"unit":{"type":"G","label":"watts"}},{"id":"GPIO3","current_value":"1","at":"2014-08-05T06:51:08.165217Z","max_value":"1.0","min_value":"1.0"},{"id":"GPIO4","current_value":"0","at":"2014-08-05T06:51:13.029452Z","max_value":"0.0","min_value":"0.0"},{"id":"GPIO5","current_value":"1","at":"2014-08-05T06:51:20.679123Z","max_value":"1.0","min_value":"1.0"},{"id":"GPIO6","current_value":"0","at":"2014-08-05T06:51:27.057369Z","max_value":"0.0","min_value":"0.0"}],"location":{"domain":"physical"},"product_id":"w8tuBsYf835kYTjDFz9w","device_serial":"DWJAXD6N7VDZ"}
There has id and the current_value in the above data , and I want to get the data of id and the current_value from the above text like following text.
GPIO1 1
GPIO2 0
GPIO3 1
GPIO4 0
GPIO5 1
GPIO6 0
How do I capture the the data of id and the current_value from the above text ?
Can somebody teach me how to do ?
Thank in advance.
Try this:
String resultJSON = "datastreams":[{"id":"GPIO1","current_value":"1","at":"2014-08-05T07:14:18.991421Z","max_value":"1.0","min_value":"0.0","tags":["xyz"],"unit":{"type":"G","label":"watts"}},
{"id":"GPIO2","current_value":"0","at":"2014-08-05T07:14:29.783670Z","max_value":"1.0","min_value":"0.0","tags":["xyz"],"unit":{"type":"G","label":"watts"}},
{"id":"GPIO3","current_value":"1","at":"2014-08-05T06:51:08.165217Z","max_value":"1.0","min_value":"1.0"},
{"id":"GPIO4","current_value":"0","at":"2014-08-05T06:51:13.029452Z","max_value":"0.0","min_value":"0.0"},
{"id":"GPIO5","current_value":"1","at":"2014-08-05T06:51:20.679123Z","max_value":"1.0","min_value":"1.0"},
{"id":"GPIO6","current_value":"0","at":"2014-08-05T06:51:27.057369Z","max_value":"0.0","min_value":"0.0"}],"location":{"domain":"physical"},"product_id":"w8tuBsYf835kYTjDFz9w","device_serial":"DWJAXD6N7VDZ"};
JSONObject jsonRoot = new JSONObject(resultJSON);
JSONArray jsonData = jsonRoot.getJSONArray("Data");
for(int i=0; i<jsonData.lenght;i++) {
JSONObject jsonOBject = jsonData.getJSONObject(i);
Log.d(TAG, "json ("+i+") = "+jsonOBject.toString());
// do what you want with your JSONObject , i.e :add it to an ArrayList of paresed result
String ID = jsonOBject.getString("id");
}
Hope this may help you
dataList = new ArrayList<HashMap<String, String>>();
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
myarray = jsonObj.getJSONArray("datastreams");
// looping through All myarray
for (int i = 0; i < myarray.length(); i++) {
JSONObject c = myarray.getJSONObject(i);
String id = c.getString("id");
String date = c.getString("at");
// tmp hashmap for single data
HashMap<String, String> data = new HashMap<String, String>();
// adding each child node to HashMap key => value
data.put(TAG_ID, id);
data.put(TAG_DATE, date);
// adding data to data list
dataList.add(data);
}
The data you have is actually a JSON so you can simply parse it to java POJO. I would suggest to use one of 2 most popular open source parsers GSON or Jackson.
What you have to do is:
Create java POJOs for chosen parser. To make it easier use this online tool http://www.jsonschema2pojo.org/
Copy generated java classes to your project.
Use JSON parser e.g. GSON
Let's say you named your main class as Example, with GSON you can parse it like this:
Gson gson = new Gson();
String data = ....//your JSON data
Example example = gson.fromJson(data, Example.class);
Data you would like to get will have own Java representation and will be available through getter method, e.g.:
List<Datastream> datastreams = example.getDatastreamList();
for (DataStream data : datastreams) {
String id = data.getId();
String currentValue = data.getCurrentValue();
}
Then you can do whatever you like. Please know that GSON can also read streams, so if you already parse stream to string you can skip it and pass that stream to Gson object directly.
If you don't want redundant POJOs or their parameters, you can remove them. GSON will handle it and simply ignore these values. Just make sure that data you are interested in keep the generated structure.
That's how I would do it.
I try parsing a single json object and i have a problem.
this is my object :
{"id":"16","nickname":"vvvv","country":"Albania","date":"2013-03-25 21:08:40","best":"8","updateDate":"1364243187.162"}
i use this code:
JSONObject object = (JSONObject) new JSONTokener(responce).nextValue();
String query = object.getString("nickname");
i get java.langClassCastExeption java.jangBoolean
simply create an JSONObject from given string and then extract all values from jsonObject as :
//create json object form responce string
JSONObject object = new JSONObject(responce);
//get nickname
String query = object.getString("nickname");
///.... get other value for object
and also use JSONObject.has(String name) for checking is current json object contain mapping for given name or not
I am taking result of a json webservice in JSONObject. While printing this jsonObject it is printing exact result. I got problem at the time of fetching values in this result because i am reading a complex response that is in the form of
{"FoodMenuRS"
:{"Status":"Success",
"TotalResults":2,
"Results":{"Items":
{"Item":[
{"#Id":"6","#Name":"Tea"},
{"#Id":"4","#Name":"Coffee"}
]}}}}
Here i am reading through,
JSONArray jsonArray = json.getJSONArray("Item");
Here i am getting error "No Value for Item"
Where as i got fetched value while calling another service which is simple in format,
{"earthquakes":
[{"eqid":"c0001xgp","magnitude":8.8,"lng":142.369,"src":"us","datetime":"2011-03-11 04:46:23","depth":24.4,"lat":38.322},
{"eqid":"2010xkbv","magnitude":7.5,"lng":91.9379,"src":"us","datetime":"2010-06-12 17:26:50","depth":35,"lat":7.7477}]}
I called it using,
JSONArray earthquakes = json.getJSONArray("earthquakes");
Please help how to fetch this type of Json response. Thanks in advance.
ya it is very complex but i refer you to use Gson library to parse Json as it is parse in structural manner example
check this:
http://www.androidcompetencycenter.com/2009/10/json-parsing-in-android/
Done with
JSONObject menuObject = jObject.getJSONObject("menu");
String attributeValue = menuObject.getString("value");
private String jString = "{\"menu\": {\"id\": \"file\", \"value\": \"File\", \"popup\": { \"menuitem\": [ {\"value\": \"New\", \"onclick\": \"CreateNewDoc()\"}, {\"value\": \"Open\", \"onclick\": \"OpenDoc()\"}, {\"value\": \"Close\", \"onclick\": \"CloseDoc()\"}]}}}";
JSONObject menuObject = jObject.getJSONObject("menu");
String attributeId = menuObject.getString("id");
String attributeValue = menuObject.getString("value");
JSONObject popupObject = menuObject.getJSONObject("popup");
JSONArray menuitemArray = popupObject.getJSONArray("menuitem");
With every new curley braces call getJSONObjectand for child call getString.
Or you can follow Gson concept to fetch response.