I checked my code but not getting what is wrong with my code..I am working on JSON Parsing using post method.this same code is working in Xcode 5 but it is not working in Xcode 6.Getting Bellow error in my JSONSerialization.
parsingResultLogin = {
"error_code" = "-1";
"error_message" = "";
}
My code is -
-(void)loginFromServer
{
NSString *strURL = [NSString stringWithFormat:#"%#login",GLOBALURLDOMAIN];
NSLog(#"strURL =%#",strURL);
NSData *dataPostLogin = nil;
NSDictionary *dicPostDataLogin = [ NSDictionary dictionaryWithObjectsAndKeys:#"qwertyuiopwqq",#"username",#"qwertyuiop",#"password",#"1234567890987654",#"device_token",#"ios",#"device_type", nil];
NSLog(#"%#",[dicPostDataLogin description]);
dataPostLogin = [NSJSONSerialization dataWithJSONObject:dicPostDataLogin options:NSJSONWritingPrettyPrinted error:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:strURL] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60];
NSLog(#"request = %#",request);
[request setHTTPBody:dataPostLogin];
[request setHTTPMethod:#"POST"];
[request setValue:[NSString stringWithFormat:#"%lu",(unsigned long)[dataPostLogin length]] forHTTPHeaderField:#"Content-Length"];
[request setValue:#"JSON/application" forHTTPHeaderField:#"Content-Type"];
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSLog(#"responsedata =%#",responseData);
if (responseData == NULL) {
AppDelegate *appdel = [[UIApplication sharedApplication]delegate];
[appdel alertError];
}
else
{
NSDictionary *parsingResultLogin = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:nil];
NSLog(#"parsingResultLogin = %#",parsingResultLogin);
//NSString *strParseDataResult = [parsingResultLogin objectForKey:#""];
}
}
Key/values in JSON are separated by ":", not "=". And there should be no semicolon at the end. So this isn't valid JSON and isn't going to parse with a JSON parser.
Related
i am using iMessage bubble to create chat view working fine
https://github.com/kerrygrover/iMessageBubble
When i call my web service in my inside method this at end
- (IBAction)sendMessage:(id)sender
here is my web method calling function which gives result out put success and send my chat to the server, but my view freeze.
NSError *errorReturned = nil;
NSString *urlString = #"https://url/methodname”;
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod: #"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
[dict setObject:employeeId forKey:#"employeeId"];
[dict setObject:employeename forKey:#"employeename"];
NSLog(#"dic=%#",dict);
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:kNilOptions error:&errorReturned];
[request setValue:[NSString stringWithFormat:#"%lu", (unsigned long)[jsonData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody: jsonData];
NSURLResponse *theResponse =[[NSURLResponse alloc]init];
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&theResponse error:&errorReturned];
if (errorReturned)
{
//...handle the error
}
else
{
NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"%#", responseString);
//...do something with the returned value
}
}
plz create a new queue not run this code on main queue . you are running the code on main queue plz use this
dispatch_queue_t myQueue = dispatch_queue_create("myQueue", NULL);
// execute a task on that queue asynchronously
dispatch_async(myQueue, ^{
NSError *errorReturned = nil;
NSString *urlString = #"https://url/methodname”;
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod: #"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
[dict setObject:employeeId forKey:#"employeeId"];
[dict setObject:employeename forKey:#"employeename"];
NSLog(#"dic=%#",dict);
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:kNilOptions error:&errorReturned];
[request setValue:[NSString stringWithFormat:#"%lu", (unsigned long)[jsonData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody: jsonData];
NSURLResponse *theResponse =[[NSURLResponse alloc]init];
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&theResponse error:&errorReturned];
if (errorReturned)
{
//...handle the error
}
else
{
NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"%#", responseString);
//...do something with the returned value
}
});
I am trying to post and JSON data to server.
My JSON is:
{
“username”:”sample”,
“password” : “password-1”
}
The way I am sending it to server is:
NSError *error;
NSString *data = [NSString stringWithFormat:#"{\"username\":\"%#\",\"password\":\"%#\"}",_textFieldUserName.text,_textFieldPasssword.text];
NSData *postData = [data dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSData *jsonData = [NSJSONSerialization JSONObjectWithData:postData options:0 error:&error];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:#"My URL"]];
[request setHTTPMethod:#"POST"];
[request setHTTPBody:jsonData];
NSURLResponse *requestResponse;
NSData *requestHandler = [NSURLConnection sendSynchronousRequest:request returningResponse:&requestResponse error:nil];
NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:requestHandler options:0 error:&error];
NSLog(#"resposne dicionary is %#",responseDictionary);
NSString *requestReply = [[NSString alloc] initWithBytes:[requestHandler bytes] length:[requestHandler length] encoding:NSASCIIStringEncoding];
NSLog(#"requestReply: %#", requestReply);
The JsonData that is created is a valid JSON accepted by the server.
But the app is crashing and the error is:
-[__NSCFDictionary length]: unrecognized selector sent to instance 0x1702654c0
what is wrong that i am doing here?
I always use this method in my apps to perform API calls. This is the post method. It is asynchronous so you can specify a callback to be called when the server answer.
-(void)placePostRequestWithURL:(NSString *)action withData:(NSDictionary *)dataToSend withHandler:(void (^)(NSURLResponse *response, NSData *data, NSError *error))ourBlock {
NSString *urlString = [NSString stringWithFormat:#"%#", action];
NSLog(#"%#", urlString);
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dataToSend options:0 error:&error];
NSString *jsonString;
if (! jsonData) {
NSLog(#"Got an error: %#", error);
} else {
jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSData *requestData = [NSData dataWithBytes:[jsonString UTF8String] length:[jsonString lengthOfBytesUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/json; charset=UTF-8" forHTTPHeaderField:#"Content-Type"];
[request setValue:[NSString stringWithFormat:#"%lu", (unsigned long)[requestData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody: requestData];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:ourBlock];
}
}
You can easily call it:
- (void) login:(NSDictionary *)data
calledBy:(id)calledBy
withSuccess:(SEL)successCallback
andFailure:(SEL)failureCallback{
[self placePostRequestWithURL:#"yourActionUrl"
withData:data
withHandler:^(NSURLResponse *response, NSData *rawData, NSError *error) {
NSString *string = [[NSString alloc] initWithData:rawData
encoding:NSUTF8StringEncoding];
NSHTTPURLResponse* httpResponse = (NSHTTPURLResponse*)response;
NSInteger code = [httpResponse statusCode];
NSLog(#"%ld", (long)code);
if (!(code >= 200 && code < 300)) {
NSLog(#"ERROR (%ld): %#", (long)code, string);
[calledBy performSelector:failureCallback withObject:string];
} else {
NSLog(#"OK");
NSDictionary *result = [NSDictionary dictionaryWithObjectsAndKeys:
string, #"id",
nil];
[calledBy performSelector:successCallback withObject:result];
}
}];
}
And finally, you invocation:
NSDictionary *dataToSend = [NSDictionary dictionaryWithObjectsAndKeys:
_textFieldUserName.text, #"username",
_textFieldPasssword.text, #"password", nil];
[self login:dataToSend
calledBy:self
withSuccess:#selector(loginDidEnd:)
andFailure:#selector(loginFailure:)];
Don't forget to define your callbacks:
- (void)loginDidEnd:(id)result{
NSLog(#"loginDidEnd:");
// Do your actions
}
- (void)loginFailure:(id)result{
NSLog(#"loginFailure:");
// Do your actions
}
First you create an NSString* that is supposed to contain JSON data. This doesn't work in general if the username and password contain any unusual characters. For example, I make sure that I have a quotation mark in my password to make sure that stupid software crashes.
You turn that string into an NSData* using ASCII encoding. So if my username contains any characters that are not in the ASCII character set, what you get is nonsense.
You then use the parser to turn this into a dictionary or array, but store the result into an NSData. Chances are that the parse fails and you get nil, otherwise you get an NSDictionary* or an NSArray*, but most definitely not an NSData*.
Here's how you do it properly: You create a dictionary, and then turn it into NSData.
NSDictionary* dict = #{ #"username": _textFieldUserName.text,
#"password": _textFieldPasssword.text };
NSError* error;
NSData* data = [NSJSONSerialization dataWithJSONObject:dict options:0 error:&error];
That's it.
try this:
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:#"My URL"];
if (!request) NSLog(#"Error creating the URL Request");
[request setHTTPMethod:#"POST"];
[request setHTTPBody:[data dataUsingEncoding:NSUTF8StringEncoding]];
[request setValue:#"text/json" forHTTPHeaderField:#"Content-Type"];
NSLog(#"will create connection");
// Send a synchronous request
NSURLResponse * response = nil;
NSError * NSURLRequestError = nil;
NSData * responseData = [NSURLConnection sendSynchronousRequest:request
returningResponse:&response
error:&NSURLRequestError];
I need to Parse below string to POST method in iOS
"jsonData":{"empId":"cxvd","password":"sfsd"}
But I m getting the error as
Res: Tomcat Error
HTTP Status 400 - Required String parameter 'jsonData' is not present
//------ Method I have used to Parse is ---------- //
+(void) requestToServerForLogin:(NSString*)userName andPassward: (NSString*)password onCompletion:(RequestCompletionHandler) handler
{
NSString *url = [Ip stringByAppendingString:#"login"];
NSString *jsonString = [NSString stringWithFormat:#"\"jsonData\":{\"empId\":\"%#\",\"password\":\"%#\"}",
userName,
password ];
NSURL *nsurl = [NSURL URLWithString:url];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:nsurl];
[urlRequest setTimeoutInterval:60.0f];
[urlRequest setHTTPMethod:#"POST"];
[urlRequest setValue:#"application/json"
forHTTPHeaderField:#"Content-type"];
NSString *body = jsonString1;
[urlRequest setHTTPBody:[body dataUsingEncoding:NSUTF8StringEncoding]];
NSLog(#"urlRequest :%#",[body dataUsingEncoding:NSUTF8StringEncoding]);
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection sendAsynchronousRequest:urlRequest
queue:queue
completionHandler:^(NSURLResponse *response,
NSData *data1, NSError *error)
{
NSString *res = [[NSString alloc] initWithData:data1 encoding:NSUTF8StringEncoding];
if(handler) handler(res,error);
}];
}
Thanks in advance
There is way to much code. The substringToIndex and substringFromIndex are wrong, should not be in the code.
Use the literal syntax for the dictionaries:
NSDictionary *jsonDict = #{#"jsonData":#{#"password":password, #"empId":userName}};
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:jsonDict options:0 error:&error];
I tried to 1)POST image to URL and 2)get Image fro URL.
Posting worked :-
-(void)Send:(id)sender
{
NSData *imageData = UIImagePNGRepresentation(myImageView.image);
myString = [Base64 encode:imageData];
NSString *post =[NSString stringWithFormat:#"?&image=%#",
myString];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d",[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:#"http://192.168.3.125:8090/SaveDollar/rest/classifieds/addTestImages"]]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Current-Type"];
[request setHTTPBody:postData];
con3 = [[NSURLConnection alloc]initWithRequest:request delegate:self];
if(con3)
{ webData3=[NSMutableData data];
NSLog(#"Connection successfull");
NSLog(#"GOOD Day My data %#",webData3);
}
else
{
NSLog(#"connection could not be made");
}
}
But When I Get Image for JSON i got error:-
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{if (connection==con2)
{
al=[NSJSONSerialization JSONObjectWithData:webData2 options:0 error:nil];
for (NSDictionary *diction in al)
{
NSString *geting =[diction valueForKey:#"image"];
NSLog(#"geting is %#",geting);
getdata = [NSData dataFromBase64String:geting ];
//getdata = [Base64 decode:geting ];
NSLog(#"getdata is %#",getdata);
dataimages=[UIImage imageWithData:getdata];
NSLog(#"dataImaeg is %#",dataimages);
//[imagearray addObject:dataimages];
myImageView.image=dataimages;
}
}
}
but When i getting image on JSON Data it's not worked. I got This error
Nov 10 14:25:35 Sricharans-iMac.local onlyGeting[3729] : ImageIO: PNG Q[10]U[1E]: invalid chunk type
Nov 10 14:25:35 Sricharans-iMac.local onlyGeting[3729] : ImageIO: PNG Q[10]U[1E]: invalid chunk type
Please tell me What wrong in my code .And Give me any Idea about my problem, image not getting.
Thanks in Advanced.
Is your image getting uploaded? If it doesn't check out for codes of image posting, and also check out if the server backend is working properly
I am attempting to connect to a web page and return a JSON string. This string simply needs to be parsed in JSON and returned into an NSArray that I have waiting for it. The problem is that JSON doesn't always return the results. Sometimes, it works well. Sometimes, it returns (null), citing the error below.
self.accounts = nil; // Clear the NSArray
NSString *post = [NSString stringWithFormat:#"username=%#", username.text];
NSData *postData = [NSData dataWithBytes: [post UTF8String] length: [post length]];
// Submit login data
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString: #"http://###.#####.###/app/getaccts.php"]];
[request setHTTPMethod: #"POST"];
[request setValue: #"application/x-www-form-urlencoded" forHTTPHeaderField: #"Content-Type"];
[request setHTTPBody: postData];
// Retreive server response
NSURLResponse *response;
NSError *err;
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSString *content = [NSString stringWithUTF8String:[returnData bytes]];
accounts = [[content JSONValue] allValues]; // Parse JSON string into the array
NSLog(#"Array: %#", accounts);
The page I am submitting to returns this:
{"1":"856069060", "2":"856056407"}
JSON logs the following error:
-JSONValue failed. Error is: Illegal start of token [r]
Can I get a little more info ... specifically, I'd like you to check the return value of your sendSynchronousRequest so can you make this change and rerun your test:
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
if (returnData == nil) {
NSLog(#"ERROR: %#", err);
} else {
NSLog(#"DATA: %#", returnData);
}