Request with NSURLRequest
ios, nsurlconnection, nsurlrequest, objective-c
Solution
try this:
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL
URLWithString:@"http://localhost:8888/testNSURL/index.php"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:60.0];
[request setHTTPMethod:@"POST"];
NSString *postString = @"myVariable=Hello world !";
[request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:request delegate:self];
if (theConnection) {
receiveData = [NSMutableData data];
}
seen here https://stackoverflow.com/a/6149088/1317080
Problem
I'm trying do to an app which uses a database (actually in my localhost), I tried with ASIHTTPRequest but having so much troubles with iOS 5 (I learnt how to use ASIHTTPRequest form there : http://www.raywenderlich.com/2965/how-to-write-an-ios-app-that-uses-a-web-service Now i'm trying with the API provided by Apple : NSURLRequest / NSURLConnection etc,... I read the Apple online guide and make this first code : ``` - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://localhost:8888/testNSURL/index.php"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; [request setValue:@"Hello world !" forKey:@"myVariable"]; NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:request delegate:self]; if (theConnection) { receiveData = [NSMutableData data]; } } ``` I added the delegates needed by the API ``` - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data - (void)connection:(NSURLConnection *)connection - (void)connectionDidFinishLoading:(NSURLConnection *)connection ``` Here is my php code : ``` <?php if(isset($_REQUEST["myVariable"])) { echo $_REQUEST["myVariable"]; } else echo '$_REQUEST["myVariable"] not found'; ?> ``` So what is wrong? When I start the app, it will immediately crash with this output : ** ``` **> 2012-04-09 22:52:16.630 NSURLconnextion[819:f803] *** Terminating app > due to uncaught exception 'NSUnknownKeyException', reason: > '[<NSURLRequest 0x6b32bd0> setValue:forUndefinedKey:]: this class is > not key value coding-compliant for the key myVariable.' > *** First throw call stack: (0x13c8022 0x1559cd6 0x13c7ee1 0x9c0022 0x931f6b 0x931edb 0x2d20 0xd9a1e 0x38401 0x38670 0x38836 0x3f72a > 0x10596 0x11274 0x20183 0x20c38 0x14634 0x12b2ef5 0x139c195 0x1300ff2 > 0x12ff8da 0x12fed84 0x12fec9b 0x10c65 0x12626 0x29dd 0x2945) terminate > called throwing an exception** ``` ** I guess, it means that somethings is wrong with this line : ``` [request setValue:@"Hello world !" forKey:@"myVariable"]; ``` It actually works if I comment this line. My question is : How can I send datas to a PHP API, using NSURLRequest and NSURLConnexion? Thank you for helping. P.S. By the way, I have poor knowledges about server, PHP ect,...