objective c - How I know the the posting data goes correctly -

-(ibaction)clicked:(id)sender{     nsstring *cidstring = cid.text;      nsurl *url = [nsurl urlwithstring:@"http://localhost:8080/test/?"];     nsstring *postdata = [nsstring stringwithformat:@"companyid=%@",cidstring];      nsmutableurlrequest *request = [nsmutableurlrequest requestwithurl:[url standardizedurl]                                                            cachepolicy:nsurlrequestreloadignoringlocalcachedata timeoutinterval:60];      [request sethttpmethod:@"post"];     [request setvalue:@"application/x-www-form-urlencoded; charset=utf-8" forhttpheaderfield:@"content-type"];     [request sethttpbody:[postdata datausingencoding:nsutf8stringencoding]];      [self startconnection:(nsmutableurlrequest *)request];      if([self.result isequaltostring:@"new alert"])     {         cid.text = @"scuess";     }  } 

where startconnection method follows

- (void)startconnection:(nsmutableurlrequest *)request {      [self.connection cancel];      nsmutabledata *data = [[nsmutabledata alloc] init];     self.receiveddata = data;     self.result = [[nsstring alloc] initwithdata:data encoding:nsasciistringencoding];     nslog(@"receiveddata: %@", [[nsstring alloc] initwithdata:receiveddata encoding:nsasciistringencoding]);       self.connection = [[nsurlconnection alloc] initwithrequest:request delegate:self];      if (self.networkerroralert) {         nslog(@"connection fail");      }      [self.connection start]; } 

when typing localhost string in browser im getting data in browser want in code

you need implement delegate:

- (void)connection:(nsurlconnection *)connection didreceiveresponse:(nsurlresponse *)response {     nslog(@"received response: %@", [response url]); //give url.        [receiveddata setlength:0]; } 

when server has provided sufficient data create nsurlresponse object, delegate receives connection:didreceiveresponse: message. delegate method can examine provided nsurlresponse , determine expected content length of data, mime type, suggested filename , other metadata provided server.

edit:

   //if want more...you need :     nsstring *contenttypevalue = nil;     (nsstring *headerkey in [[(nshttpurlresponse*)response allheaderfields] allkeys] ) {         if([@"content-type" caseinsensitivecompare:headerkey] == nsorderedsame ) {             contenttypevalue = [[(nshttpurlresponse*)response allheaderfields] valueforkey:headerkey];         }      }      nslog(@"===>%@",contenttypevalue);