How To Use NSURLConnection In Objective C

NSURLConnection In Objective C

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
           [self.webResponseData setLength:0];
}

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
         [self.webResponseData appendData:data];
}

-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
         NSLog(@"%@",error);
}

-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
        NSString *theXML = [[NSString alloc] initWithBytes:

       [_webResponseData mutableBytes] length:[_webResponseData length]    encoding:NSUTF8StringEncoding];
       NSLog(@"theXML : %@",theXML);
       NSData *myData = [theXML dataUsingEncoding:NSUTF8StringEncoding];
       NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithData:myData];
       xmlParser.delegate = self;

// Run the parser
@try
{
        BOOL parsingResult = [xmlParser parse];
        NSLog(@"parsing result = %d",parsingResult);
}

@catch (NSException* exception)
{
       NSLog(@"%@",exception);

   return;
}
}