how to post form data to URL in Objective-C - ios

Question

I have 3 UITextfield and 1 Button, when I button click 3 UITextfield data sent to the database using forms.
my code is send the data to database but it's show in null values in database.
<form action="//http://192.168.3.171:8090/RestWebService/rest/person" id="suggestions" method="post">
<input id="name" name="name" type="text" >
<input id="suggestion" name="suggestion" type="text">
<input id="submitsuggestion" name="submitsuggestion" type="text">
</form>
Viewcontroller.M
#import "ViewController.h"
#interface ViewController ()
{
NSMutableData *recievedData;
NSMutableData *webData;
NSURLConnection *connection;
NSMutableArray *array;
NSMutableString *first;
}
#end
#implementation ViewController
#synthesize webview;
#synthesize firstName;
#synthesize lastName;
#synthesize email;
- (void)viewDidLoad
{}
- (IBAction)send:(id)sender
{
NSString *name = firstName.text;
NSLog(#" name is %# ",name);
NSString *lastname = lastName.text;
NSLog(#" name is %# ",lastname);
NSString *emailname = email.text;
NSLog(#" name is %# ",emailname);
if (name.length == 0 || lastname.length == 0 || email.text==0) {
UIAlertView *alert=[[UIAlertView alloc]initWithTitle:#"Message!" message:#"plz enter 3 fields " delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
}else{
webData=[NSMutableData data];
NSURL *url = [NSURL URLWithString:#"http://192.168.3.128:8050/RestWebService/rest/person"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
NSData *requestData = [#"name=firstName&suggestion=lastName&submitsuggestion=email" dataUsingEncoding:NSUTF8StringEncoding];
NSLog(#"requestData%#",requestData);
[request setHTTPMethod:#"POST"];
[request setValue:#"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
//[request setValue:requestData forHTTPHeaderField:#"Content-Length"];
[request setValue:[NSString stringWithFormat:#"%d", [requestData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody: requestData];
NSLog(#"requestData*******:%#",requestData);
NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];
if(conn)
{
NSLog(#"Connection successfull");
NSLog(#"GOOD Day My data %#",webData);
}
else
{
NSLog(#"connection could not be made");
}
}
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[webData setLength:0];
NSLog(#"DidReceiveResponse");
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[webData appendData:data];
NSLog(#"DidReceiveData");
NSLog(#"DATA %#",data);
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
NSLog(#"Error is");
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(#"Succeeded! Received %d bytes of data",[webData length]);
NSLog(#"Data is %#",webData);
// NSLog(#"receivedData%#",_receivedData);
NSString *responseText = [[NSString alloc] initWithData:webData encoding: NSASCIIStringEncoding];
NSLog(#"Response: %#", responseText);//holds textfield entered value
NSLog(#"");
NSString *newLineStr = #"\n";
responseText = [responseText stringByReplacingOccurrencesOfString:#"<br />" withString:newLineStr];
NSLog(#"ResponesText %#",responseText);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
my UITextfield data will be stored in database but it's null.

Answer 1

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
self.appListData = [NSMutableData data]; // start off with new data
}
or
How to pass web service
NSString *post = [NSString stringWithFormat:#"first_name=%#&last_name=%#",firstName.text,lastName.text];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[post length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"http://localhost/promos/index.php"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:postData];
NSURLConnection *theConnection = [NSURLConnection connectionWithRequest:request delegate:self];
if( theConnection ){
// indicator.hidden = NO;
mutableData = [[NSMutableData alloc]init];
}
your PHP code
<?php
$first name = $_POST['first_name'];
$last name=$_POST['last_name'];
echo $username;
?>

Answer 2

Exact answer here for your above Question[FOR POSTING DATA IN YOUR URL(SERVER)]
//Here YOUR URL
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"http://192.168.3.128:8050/RestWebService/rest/person"]];
//create the Method "GET" or "POST"
[request setHTTPMethod:#"POST"];
//Pass The String to server(YOU SHOULD GIVE YOUR PARAMETERS INSTEAD OF MY PARAMETERS)
NSString *userUpdate =[NSString strin gWithFormat:#"user_email=%#&user_login=%#&user_pass=%#& last_upd_by=%#&user_registered=%#&",txtemail.text,txtuser1.text,txtpass1.text,txtuser1.text,datestr,nil];
//Check The Value what we passed
NSLog(#"the data Details is =%#", userUpdate);
//Convert the String to Data
NSData *data1 = [userUpdate dataUsingEncoding:NSUTF8StringEncoding];
//Apply the data to the body
[request setHTTPBody:data1];
//Create the response and Error
NSError *err;
NSURLResponse *response;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSString *resSrt = [[NSString alloc]initWithData:responseData encoding:NSASCIIStringEncoding];
//This is for Response
NSLog(#"got response==%#", resSrt);
if(resSrt)
{
NSLog(#"got response");
/* ViewController *view =[[ViewController alloc]initWithNibName:#"ViewController" bundle:NULL];
[self presentViewController:view animated:YES completion:nil];*/
}
else
{
NSLog(#"faield to connect");
}

Answer 3

Make life easy on yourself and use AFNetworking. Instructions for how to post form data are here: https://github.com/AFNetworking/AFNetworking