Send HTTP request in objective c - iphone

Question

I need to connect to a server without typing "http://". I have to get only the server name and port number from the user. With this, I should be able to connect to a particular server...

Answer 1

In its simplest form, it looks something like this:
- (void)loadHostName:(NSString *)hostName onPort:(NSInteger)portNumber {
responseData = [[NSMutableData alloc] init];
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"http://%#:%i", hostName, portNumber]];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection release];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[responseData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
NSLog(#"Oh noes! %#", [error localizedDescription]);
[responseData release];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
// Do something with the data, like load it in a web view.
[webView loadData:responseData MIMEType:#"text/html" textEncodingName:#"utf-8" baseURL:nil];
[responseData release];
}
In production code, you should handle cache requests, authentication challenges etc. (see the messages on NSURLConnection), but the above example will send an HTTP request and load it into a web view.

Answer 2

Try this,
NSURL *aUrl = [NSURL URLWithString:[NSString stringWithFormat:#"http://%#:%i", hostName, portNumber]];
NSURLRequest *request = [NSURLRequest requestWithURL:aUrl
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:60.0];
NSURLResponse *resp = nil;
NSError *err = nil;
NSData *response = [NSURLConnection sendSynchronousRequest: theRequest returningResponse: &resp error: &err];
NSString * theString = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
[resp release];
[err release];
NSLog(#"response: %#", theString);

Answer 3

well you can hardcode HTTP:// with the server name
example
NSString *serverName = "stackoverflow.com";
NSNumber *portNumber = 10;
NSString *finalYrl = [NSString StringWithFormat:#"HTTP://%#:%#",serverName , portNumber];