I Have got this Response from WebService
{"d":"{"token":"b502645e-837f-4237-a6ff-d4323f2799dd","timestamp":"09/11/20147:46:43PM"}"}
I want to Parse this String so that i can get output like :
token = b502645e-837f-4237-a6ff-d4323f2799dd
timestamp = 09/11/20147:46:43PM
So that i can Store it into Database.
This is my Code
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
// The request is complete and data has been received
// You can parse the stuff in your instance variable now
/*
NSError *errorJson=nil;
NSString* OuterDict = [NSJSONSerialization JSONObjectWithData:receivedData options:kNilOptions error:&errorJson];
NSLog(#"Outer Dictionary %#",OuterDict);
*/
NSString *responseData = [[NSString alloc]initWithData:receivedData encoding:NSUTF8StringEncoding];
responseData = [responseData stringByReplacingOccurrencesOfString:#" " withString:#""];
responseData = [responseData stringByReplacingOccurrencesOfString:#"\\" withString:#""];
//NSString* encodedString = [responseData stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
//NSLog(#"%#",encodedString);
NSLog(#"Reponse data %#",responseData);
NSError *errorJson=nil;
NSData *jsonData = [responseData dataUsingEncoding:NSUTF8StringEncoding];
jsonData = [jsonData subdataWithRange:NSMakeRange(0, [jsonData length] - 1)];
NSDictionary* OuterDict = [NSJSONSerialization JSONObjectWithData:jsonData options:kNilOptions error:&errorJson];
NSLog(#"Outer Dict %#",OuterDict);
}
I am getting null as Output:
Outer Dict (null)
Can Anyone Help me With this.
Thanks In Advance.
Use following snippets at the top of your method. it will parse your JSON data and returns dictionary. You can perform any operations on Dictionary according to your need.
NSDictionary *dictResponse = [NSJSONSerialization JSONObjectWithData:receivedData options:NSJSONReadingAllowFragments error:&err];
NSLog(#"Response : %#", dictResponse);
Happy coding :)
json is:
{
"Title":"Kick", "Year":"2009", "Rated":"N/A", "Released":"08 May 2009",
"Runtime":"N/A", "Genre":"Comedy, Romance, Thriller", "Director":"Reddy Surender",
"Writer":"Abburi Ravi (dialogue), Reddy Surender (screenplay), Vakkantham Vamsi (story)",
"Actors":"Ravi Teja, Ileana, Shaam, Ali",
"Plot":"A guy with an abnormal lifestyle tries to find thrill and pleasure in every work he does and finally becomes a thief.",
"Language":"Telugu", "Country":"India", "Awards":"1 nomination.",
"Poster":"N/A","Metascore":"N/A",
"imdbRating":"7.6",
"imdbVotes":"736",
"imdvid":"tt1579592",
"Type":"movie",
"Response":"True"
}
The Code is:
-(void)parseData:(NSData *)data
{
NSString *responseString = [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding];
NSLog(#"responseString %#",responseString);
NSError *error;
NSArray *json = [NSJSONSerialization JSONObjectWithData:data
options:(kNilOptions)
error:&error];
NSLog(#"json data == %#", json);
NSMutableArray *response =[[NSMutableArray alloc]init];
for (int i = 0; i < json.count; i++)
{
response = [json valueForKey:#"imdbRating"];
User * userObj = [[User alloc]init];
userObj.movieRating = [json valueForKey:#"imdbRating"];
[response addObject:userObj];
}
[delegate getIMDBMovie_Rating:response];
}
How to save data in bussiness model object for key imdbRating
The Json you specified is not an array. This is an NSDictionary object. Also as this is a NSDictionary you don't need to use for loop.
Second thing you are doing wrong with your response variable.
you did:
response = [json valueForKey:#"imdbRating"];
User * userObj = [[User alloc]init];
userObj.movieRating = [json valueForKey:#"imdbRating"];
[response addObject:userObj];
here response variable is not an array even though you allocated it as NSMutableArray earlier. As you assign new value in response in the line: response = [json valueForKey:#"imdbRating"];
your variable type will be either NSNumber or NSString based on the type of [json valueForKey:#"imdbRating"].
So remove the line response = [json valueForKey:#"imdbRating"]; and it will work.
By doing this you will hv an array of User objects containing imdbRatings.
UPDATE
According to your comment your code has:
-(void)getIMDBMovie_Rating:(NSMutableArray*)retrievedData {
if (retrievedData.count > 0)
{
userObj = [retrievedData objectAtIndex:0];
NSLog(#"%#is the value",retrievedData);
iMDB_MovieRatingLabel.text=userObj.movieRating;
}
}
Problem is in your getIMDBMovie_Rating. as your method is accepting NSMutableArray as parameter. But when you supply value for your method is NSDictionay [delegate getIMDBMovie_Rating:response]; (you can check by NSLog(#"%#", [response class]);).
So in your getIMDBMovie_Rating method you are accessing [retrievedData objectAtIndex:0];. objectAtIndex is not available with NSDictionay that's why your app get crash.
Try like this,
-(void)parseData:(NSData *)data
{
NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"responseString %#",responseString);
NSError *error;
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:(kNilOptions) error:&error];
NSLog(#"json data == %#", json);
NSMutableArray *response =[[NSMutableArray alloc]init];
NSArray *aArray = [json valueForKey:#"imbdRating"];
for (NSDictionary *dictionary in aArray)
{
/* Create a initWithData method in your User Model class and pass the dictionary object to it like,
- (id) initWithData:(NSDictionary *) jsonDictionary
{
self=[super init];
if(self)
{
self.movieRating =[json valueForKey:#"imdbRating"];
} */
User * userObj = [[User alloc]initWithData:dictionary];
[response addObject:userObj];
}
[delegate getIMDBMovie_Rating:response];
}
I am trying to parse JSON without keys.
It looks like this one:
{
"somestring": [
"otherstring1",
float],
"somestring2": [
"somestring3",
float],
"full":integer
}
How I am suppose to parse the first value for each object?
So, when you parse that, you will have a NSDictionary with for which the first two keys have a value which is an NSArray:
NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
if (error)
NSLog(#"JSONObjectWithData error: %#", error);
NSArray *array = dictionary[#"22398f2"];
NSString *firstArrayItem = array[0]; // #"CBW32"
NSString *secondArrayItem = array[1]; // #50.1083
Or, if you want all of the first items, you could do something like:
NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
if (error)
NSLog(#"JSONObjectWithData error: %#", error);
[dictionary enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
NSArray *array = obj;
if ([obj isKindOfClass:[NSArray class]])
NSLog(#"first item = %#", array[0]);
else
NSLog(#"The value associated with key '%#' is not array", key);
}];
This is my string:
[{"id":"1","nome":"Adriatik"},{"id":"2","nome":"Ard"},{"id":"3","nome":"Albana"},{"id":"4","nome":"Adriana"}]
I would like to parse all 'name' of the JSON string into a NSMutableArray.
Sorry for my english!
Whenever I have to handle some JSON code, the first thing I like to do is create a class based on the JSON text. So, for example if your JSON is representing a U.S. state, create a "State" class.
There's a cool little product that you can use for this. It's called Objectify and costs about $15. No doubt people can advise on other free stuff that might do something similar.
For the actual Json parsing, I use SBJson. There's quite a few Json parsing frameworks out there for Objective-C so definitely have a look around to see what takes your fancy.
Next, with SBJson, do the actual parsing:
-(NSDictionary *)parseJsonFromUrl
{
NSAssert(mUrl, #"Must set a url before invoking %#", __PRETTY_FUNCTION__);
// Create new SBJSON parser object
SBJsonParser *parser = [[SBJsonParser alloc] init];
// Prepare URL request to download JSON
NSURLRequest *request = [NSURLRequest requestWithURL:mUrl];
// Perform request and get JSON back as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
// Get JSON as a NSString from NSData response
NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
// parse the JSON response into an object
// Here we're using NSArray since we're parsing an array of JSON status objects
return [parser objectWithString:json_string error:nil];
}
That returns a NSDictionary. You know have to look through that dictionary to set the values of your model class. Here's how to do that whilst at the same time loading the values into the NSMutableArray:
-(void)downloadJsonData
{
NSDictionary *statesDict = [self parseJsonFromUrl];
NSMutableArray *statesArray = [NSMutableArray arrayWithCapacity:[statesDict count]];
for (NSDictionary *stateDict in stateDict)
{
State *aState = [[[State alloc] init] autorelease];
aState.stateId = [stateDict valueForKey:#"id"];
aState.name = [stateDict valueForKey:#"name"];
[statesArray addObject:aState];
}
}
Note that I use a property name of stateId not id so as not to clash with the Objective-C object pointer type.
Use SBJson classes and call -JSONValue method
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
// NSLog(#" Response String %#", responseString);
//converted response json string to a simple NSdictionary
NSMutableArray *results = [responseString JSONValue];
So i have this JSON:
{"Curs":[{"ID":"AED","Name":"Dirhamul Emiratelor Arabe","Curs":"0.8013","Multiplier":"1","Data":"2011-03-21"},{"ID":"AUD","Name":"Dolarul australian","Curs":"2.9611","Multiplier":"1","Data":"2011-03-21"},{"ID":"BGN","Name":"Leva bulgareasc","Curs":"2.1314","Multiplier":"1","Data":"2011-03-21"},{"ID":"BRL","Name":"Realul brazilian","Curs":"1.7636","Multiplier":"1","Data":"2011-03-21"},{"ID":"CAD","Name":"Dolarul canadian","Curs":"3.0137","Multiplier":"1","Data":"2011-03-21"},{"ID":"CHF","Name":"Francul elvetian","Curs":"3.2484","Multiplier":"1","Data":"2011-03-21"},{"ID":"CNY","Name":"Renminbi-ul chinezesc","Curs":"0.4483","Multiplier":"1","Data":"2011-03-21"},{"ID":"CZK","Name":"Coroana ceha","Curs":"0.1707","Multiplier":"1","Data":"2011-03-21"},{"ID":"DKK","Name":"Coroana daneza","Curs":"0.559","Multiplier":"1","Data":"2011-03-21"},{"ID":"EGP","Name":"Lira egipteana","Curs":"0.4959","Multiplier":"1","Data":"2011-03-21"},{"ID":"EUR","Name":"Euro","Curs":"4.1685","Multiplier":"1","Data":"2011-03-21"},{"ID":"GBP","Name":"Lira sterlina","Curs":"4.7864","Multiplier":"1","Data":"2011-03-21"},{"ID":"HUF","Name":"100 Forinti maghiari","Curs":"1.5354","Multiplier":"100","Data":"2011-03-21"},{"ID":"INR","Name":"Rupia indiana","Curs":"0.0653","Multiplier":"1","Data":"2011-03-21"},{"ID":"JPY","Name":"100 Yeni japonezi","Curs":"3.6213","Multiplier":"100","Data":"2011-03-21"},{"ID":"KRW","Name":"100 Woni sud-coreeni","Curs":"0.2623","Multiplier":"100","Data":"2011-03-21"},{"ID":"MDL","Name":"Leul moldovenesc","Curs":"0.2507","Multiplier":"1","Data":"2011-03-21"},{"ID":"MXN","Name":"Peso-ul mexican\t","Curs":"0.2452","Multiplier":"1","Data":"2011-03-21"},{"ID":"NOK","Name":"Coroana norvegiana","Curs":"0.5286","Multiplier":"1","Data":"2011-03-21"},{"ID":"NZD","Name":"Dolarul neo-zeelandez","Curs":"2.164","Multiplier":"1","Data":"2011-03-21"},{"ID":"PLN","Name":"Zlotul polonez","Curs":"1.0299","Multiplier":"1","Data":"2011-03-21"},{"ID":"RSD","Name":null,"Curs":"0.0404","Multiplier":"1","Data":"2011-03-21"},{"ID":"RUB","Name":"Rubla ruseasca","Curs":"0.1039","Multiplier":"1","Data":"2011-03-21"},{"ID":"SEK","Name":"Coroana suedeza","Curs":"0.4697","Multiplier":"1","Data":"2011-03-21"},{"ID":"TRY","Name":"Lira turceasca","Curs":"1.8665","Multiplier":"1","Data":"2011-03-21"},{"ID":"UAH","Name":"Hryvna ucraineana","Curs":"0.3699","Multiplier":"1","Data":"2011-03-21"},{"ID":"USD","Name":"Dolarul american","Curs":"2.9428","Multiplier":"1","Data":"2011-03-21"},{"ID":"XAU","Name":"Gramul de aur","Curs":"135.0844","Multiplier":"1","Data":"2011-03-21"},{"ID":"XDR","Name":"DST","Curs":"4.678","Multiplier":"1","Data":"2011-03-21"},{"ID":"ZAR","Name":"Randul sud-african ","Curs":"0.4233","Multiplier":"1","Data":"2011-03-21"}]}
And i want to parse it but i am new to this and don't know how. For example how could i get the values from ID.
Here is my code:
#import "DownloadData.h"
#import "JSON.h"
#implementation DownloadData
-(void) connection
{
// Create new SBJSON parser object
SBJsonParser *parser = [[SBJsonParser alloc] init];
// Prepare URL request to download statuses from Twitter
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://source"]];
// Perform request and get JSON back as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
// Get JSON as a NSString from NSData response
NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
//NSLog(json_string);
// parse the JSON response into an object
// Here we're using NSArray since we're parsing an array of JSON status objects
NSArray *statuses = [parser objectWithString:json_string error:nil];
// Each element in statuses is a single status
// represented as a NSDictionary
//NSLog([json_string description]);
//NSLog([json_string objectForKey:#"Curs"]);
/*
for (NSDictionary *status in statuses)
{
// You can retrieve individual values using objectForKey on the status NSDictionary
// This will print the tweet and username to the console
NSLog(#"%# - %#",[status objectForKey:#"Curs"]);
}
*/
NSLog(#"test");
//jsondownload=[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
#end
Do:
NSDictionary *responseObj = [parser objectWithString:json_string error:nil];
NSArray *statuses = [responseObj objectForKey:#"Curs"];
for (id anUpdate in statuses) {
NSLog(#"ID: %#", [(NSDictionary*)anUpdate objectForKey:#"ID"]);
}