Below is my code..
NSString *strResponce = [[NSString alloc] initWithData:JsonData encoding:NSASCIIStringEncoding];
here string has some data.
[JsonData release];
NSError *error;
SBJSON *json = [[SBJSON new] autorelease];
ArrayWebContent=[json objectWithString:strResponce error:&error];
But array is null.
any suggestion....
check your json data first put the content of the string strResponce in to the url
Checking json data are proper for parsing
if it gonna generate the parse error than you should check the content of the ws as it may content special charactor for which iphone can not support parsing
good luck
Try with below functions.
- (id) objectWithUrl:(NSURL *)url
{
SBJSON *jsonParser = [SBJSON new];
NSString *jsonString = [self stringWithUrl:url];
// Parse the JSON into an Object
return [jsonParser objectWithString:jsonString error:NULL];
}
- (NSString *)stringWithUrl:(NSURL *)url
{
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url
cachePolicy:NSURLRequestReturnCacheDataElseLoad
timeoutInterval:30];
// Fetch the JSON response
NSData *urlData;
NSURLResponse *response;
NSError *error;
// Make synchronous request
urlData = [NSURLConnection sendSynchronousRequest:urlRequest
returningResponse:&response
error:&error];
// Construct a String around the Data from the response
return [[NSString alloc] initWithData:urlData encoding:NSUTF8StringEncoding];
}
Let me know for any difficulty.
Related
Api Address：
http://suggest.taobao.com/sug?area=etao&code=utf-8&callback=KISSY.Suggest.callback&q=iphone
return：
KISSY.Suggest.callback({"result": [["iphone4s", "9809"], ["iphone5", "13312"], ["iphone4 手机", "69494400"], ["iphone5 港行", "14267"], ["iphone5三网", "2271160"], ["iphone4手机壳", "6199679"], ["iphone 5手机壳", "2527284"], ["iphone 5 保护壳", "5727586"], ["iphone 4贴膜", "147271"], ["iphone5壳", "2628540"]]})
NSURL * url = [NSURL URLWithString:#"http://suggest.taobao.com/sug?area=etao&code=utf-8&callback=KISSY.Suggest.callback&q=iphone"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSHTTPURLResponse* urlResponse = nil;
NSError * error = nil;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
NSData *date = [NSData alloc]init
SBJsonParser *jsonParser = [[SBJsonParser alloc] init];
// NSMutableArray *array=[NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableLeaves error:&error];
NSMutableArray *array = [jsonParser objectWithData:responseData];
NSLog(#"%#",array);
this array is null. i dont know the reason.
as i refer you request URL ,it has callback in it, if you keep it, it will not return you json as response, so remove "&callback=KISSY.Suggest.callback" from your URL
// Make sure you have include SBJSON files in your Project, as well you have imported header in your View Controller
#import "JSON.h"
// your request URL
NSURL * url = [NSURL URLWithString:#"http://suggest.taobao.com/sug?area=etao&code=utf-8&q=iphone"];
// URL Request
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSHTTPURLResponse* urlResponse = nil;
NSError * error = nil;
// initiate Request to get Data
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
// Encode your Response
NSString *content = [[NSString alloc] initWithBytes:[responseData bytes] length:[responseData length] encoding:NSUTF8StringEncoding];
// Now read a Dictionary from it using SBJSON Parser
NSDictionary *responseDict = [content JSONValue];
NSLog(#"Response [%#]",responseDict);
I'm not familiar with the SBJsonParser, but the format of the returned string looks like JSONP, not JSON. I would imagine simply cleaning out the wrapper call would get you what you are after.
Also, note that the 'root' of your response is a dictionary, not an array.
{"result": [[...
means that the code might should look like this:
NSDictionary *response = //... decode
NSArray *results = [response objectForKey:#"result"];
Edited
You just need to use http://suggest.taobao.com/sug?area=etao&code=utf-8&q=iphone instead of http://suggest.taobao.com/sug?area=etao&code=utf-8&callback=KISSY.Suggest.callback&q=iphone you own code will work..
I am new to iOS, so if any help it will be appreciated.
I am trying to get the longitude and latitude from address, earlier the code was working fine but now the JSON data are coming null.
Here my sample code,
url = [NSString stringWithFormat:#"http://maps.google.com/maps/api/geocode/json?address=%#&sensor=false",appDelegate.sAddress];
url=[url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(#"Address URL: %#",url);
//Formulate the string as a URL object.
NSURL *requestURL=[NSURL URLWithString:url];
NSData* data = [NSData dataWithContentsOfURL: requestURL];
NSString *returnString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"my Coordinate : %#",returnString);
NSError* error;
NSDictionary* json = [NSJSONSerialization
JSONObjectWithData:data
options:kNilOptions
error:&error];
But i am getting the output as null.
So please help me out.
Thanks!
Thanks for your replies that all make me learn a lots.
As one of my friend just tell me the solution so i am sharing with you.
Here is the code,
url = [NSString stringWithFormat:#"http://maps.google.com/maps/api/geocode/json?address=%#&sensor=false",appDelegate.sAddress];
url=[url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(#"Address URL: %#",url);
//Formulate the string as a URL object.
NSURL *requestURL=[NSURL URLWithString:url];
NSData* data = [NSData dataWithContentsOfURL: requestURL];
NSString *returnString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
SBJSON *parser = [[SBJSON alloc] init];
NSDictionary *locationResult = [parser objectWithString:returnString];
//[reverseGeoString copy]`
And its working fine.
But still there is a question that why this happen.As earlier that code is working fine but it suddenly stopped working.
You must construct your returnString in the following method that actually receives the data:
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
Check out this for additional information on how to use NSURLConnection and the delegate methods.
I would say you're missing the all-important "REQUEST"...
This is what I do. Hope it helps:
NSString *encodedAddress = (__bridge_transfer NSString *) CFURLCreateStringByAddingPercentEscapes(NULL, (__bridge_retained CFStringRef)searchBar.text, NULL, (CFStringRef) #"!*'();:#&=+$,/?%#[]",kCFStringEncodingUTF8 );
NSString* searchURL = [NSString stringWithFormat:#"http://maps.googleapis.com/maps/api/geocode/json?address=%#&sensor=true",encodedAddress];
NSError* error = nil;
NSURLResponse* response = nil;
NSMutableURLRequest* request = [[NSMutableURLRequest alloc] init];
NSURL* URL = [NSURL URLWithString:searchURL];
[request setURL:URL];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setTimeoutInterval:30];
NSData* data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
if (error){
NSLog(#"Error performing request %#", searchURL);
return;
}
NSString *jsonString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
if (jsonString!=nil){
NSLog(#"%#",jsonString);
}
Hi I would like to know how I can go about sending data from 4 UITextField's to a PHP script on a website using NSURLConnection or JSon. Whatever is easier, how can I do this exactly?
Thanks in advance!
Easiest way (synchronous)
NSString strForTextField1 = textField1.text;
NSString strForTextField2 = textField1.text;
NSString strForTextField3 = textField1.text;
NSString strForTextField4 = textField1.text;
//Build the request
NSString *stringOfRequest = [NSString stringWithFormat:#"www.yourserver.com?var1=%#&var2=%#&var3=%#&var4=%#", strForTextField1, strForTextField2, strForTextField3, strForTextField4];
NSURL *url = [NSURL URLWithString:stringOfRequest];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
NSURLResponse *response;
NSError *error;
//send it synchronous
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
if(!error)
{
//log response
NSLog(#"Response from server = %#", responseString);
}
I have a EMR app and i want that i may send the data which i have collected like images and voice to server. in data base so how can i do this . Is there any way to send these data to server through post method.
Here is an example of a HTTP Post request
// define your form fields here:
NSString *content = #"field1=42&field2=Hello";
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"http://www.example.com/form.php"]];
[urlRequest setHTTPMethod:#"POST"];
[urlRequest setHTTPBody:[content dataUsingEncoding:NSISOLatin1StringEncoding]];
// generates an autoreleased NSURLConnection
[NSURLConnection connectionWithRequest:request delegate:self];
Might want to reference http://developer.apple.com/library/ios/#documentation/cocoa/reference/foundation/Classes/NSURLConnection_Class/Reference/Reference.html
This tutorial is also helpful http://www.raywenderlich.com/2965/how-to-write-an-ios-app-that-uses-a-web-service
In that case, you can do follow two ways:
1. if you strictly like to using POST (i like), u can using cocoahttpserver project:
https://github.com/robbiehanson/CocoaHTTPServer
In iphone app, you can do this code to send POST request:
-(NSDictionary *) getJSONAnswerForFunctionVersionTwo:(NSString *)function
withJSONRequest:(NSMutableDictionary *)request;
{
[self updateUIwithMessage:#"server download is started" withObjectID:nil withLatestMessage:NO error:NO];
NSDictionary *finalResultAlloc = [[NSMutableDictionary alloc] init];
#autoreleasepool {
NSError *error = nil;
NSString *jsonStringForReturn = [request JSONStringWithOptions:JKSerializeOptionNone serializeUnsupportedClassesUsingBlock:nil error:&error];
if (error) NSLog(#"CLIENT CONTROLLER: json decoding error:%# in function:%#",[error localizedDescription],function);
NSData *bodyData = [jsonStringForReturn dataUsingEncoding:NSUTF8StringEncoding];
NSData *dataForBody = [[[NSData alloc] initWithData:bodyData] autorelease];
//NSLog(#"CLIENT CONTROLLER: string lenght is:%# bytes",[NSNumber numberWithUnsignedInteger:[dataForBody length]]);
NSString *functionString = [NSString stringWithFormat:#"/%#",function];
NSURL *urlForRequest = [NSURL URLWithString:functionString relativeToURL:mainServer];
NSMutableURLRequest *requestToServer = [NSMutableURLRequest requestWithURL:urlForRequest];
[requestToServer setHTTPMethod:#"POST"];
[requestToServer setHTTPBody:dataForBody];
[requestToServer setTimeoutInterval:600];
[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[urlForRequest host]];
NSData *receivedResult = [NSURLConnection sendSynchronousRequest:requestToServer returningResponse:nil error:&error];
if (error) {
NSLog(#"CLIENT CONTROLLER: getJSON answer error download:%#",[error localizedDescription]);
[self updateUIwithMessage:[error localizedDescription] withObjectID:nil withLatestMessage:YES error:NO];
[finalResultAlloc release];
return nil;
}
NSString *answer = [[NSString alloc] initWithData:receivedResult encoding:NSUTF8StringEncoding];
JSONDecoder *jkitDecoder = [JSONDecoder decoder];
NSDictionary *finalResult = [jkitDecoder objectWithUTF8String:(const unsigned char *)[answer UTF8String] length:[answer length] error:&error];
[finalResultAlloc setValuesForKeysWithDictionary:finalResult];
[answer release];
[self updateUIwithMessage:#"server download is finished" withObjectID:nil withLatestMessage:NO error:NO];
if (error) NSLog(#"CLIENT CONTROLLER: getJSON answer failed to decode answer with error:%#",[error localizedDescription]);
}
NSDictionary *finalResultToReturn = [NSDictionary dictionaryWithDictionary:finalResultAlloc];
[finalResultAlloc release];
return finalResultToReturn;
}
Don't forget to pack attributes with images to base64.
Finally, if u don't like to keep data, which u send in you mac app, u can send to u database using any database C api. I recommend to using core data to save receive data.
I read both iPhone and Google Map for iPhone EULA and want to implement a static driving direction map in my iPhone application (native).
I am finding a simple way to get route data and display with build-in route display feature in iOS 4 SDK' Mapkit.
Is there any programmer implement a feature like this with Google Map and Bing Map? Since Bing Map provided routing data in SOAP web service, it's seem easier to programming driving direction with Bing's service.
I found the solution for this. Just use a JSON parser to got google map API
For example:
NSDictionary *testJsondata = [self testJson:GoogleMapXMLDirectionQueryString];
NSLog(#"Here is the title of the response: %#", [testJsondata valueForKey:#"status"]);
for (id key in testJsondata) {
NSLog(#"key: %#, value: %#", key, [testJsondata objectForKey:key]);
}
}
- (NSDictionary *) testJson : (NSString*) url
{
id response = [self objectWithUrl:[NSURL URLWithString:url]];
NSDictionary *feed = (NSDictionary *)response;
return feed;
}
- (id) objectWithUrl:(NSURL *)url
{
SBJsonParser *jsonParser = [SBJsonParser new];
NSString *jsonString = [self stringWithUrl:url];
// Parse the JSON into an Object
return [jsonParser objectWithString:jsonString error:NULL];
}
- (NSString *)stringWithUrl:(NSURL *)url
{
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url
cachePolicy:NSURLRequestReturnCacheDataElseLoad
timeoutInterval:30];
// Fetch the JSON response
NSData *urlData;
NSURLResponse *response;
NSError *error;
// Make synchronous request
urlData = [NSURLConnection sendSynchronousRequest:urlRequest
returningResponse: &response
error: &error];
// Construct a String around the Data from the response
return [[NSString alloc] initWithData:urlData encoding:NSUTF8StringEncoding];
}
- (NSString *)getDirectionInXML:(NSString *)GoogleMapXMLDirectionQueryString
{
NSError *error;
NSURLResponse *response;
NSData *dataReply;
NSString *stringReply;
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:
[NSURL URLWithString: [NSString stringWithFormat:GoogleMapXMLDirectionQueryString]]];
[request setHTTPMethod: #"GET"];
dataReply = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
stringReply = [[NSString alloc] initWithData:dataReply encoding:NSUTF8StringEncoding];
return stringReply;
}