The method in an iOS application that sends an get request for HTTP and an HTTP asynchronous request

Http get request

//  combination 1 Search string 

    NSString *urlStr = [NSString stringWithFormat:@"http://www.baidu.com/s?wd=%@", @"php"];

    //  String to URL

    NSURL *url = [NSURL URLWithString:urlStr];

     

//    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];

//    [request setURL:url];

//    [request setHTTPMethod:@"POST"];

//    [request setTimeoutInterval:60];

//    [request setHTTPBody:_data];

//    [request setValue:@"ttt" forHTTPHeaderField:@"cookies"];

    

    // url into 1 A request 

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    //  State of the request 

    NSURLResponse *response;

    //  link 1 A request 

    NSData *resultData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:nil];

    //  Returns data as a string 

    NSData *dataString = [[NSString alloc] initWithData:resultData encoding:NSUTF8StringEncoding];

    NSLog(@"%@", dataString);

//  parsing json ! 

Http asynchronous request

- (void)viewDidLoad

{

    [super viewDidLoad];

    // Do any additional setup after loading the view.

     

    _data = [[NSMutableData alloc] init];

     

    //  combination 1 Search string 

    NSString *urlStr = [NSString stringWithFormat:@"http://www.baidu.com/s?wd=%@", @"php"];

    NSURL *url = [NSURL URLWithString:urlStr];

     

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

     

    // Initiate the request and define the proxy 

    [NSURLConnection connectionWithRequest:request delegate:self];

     

}

 

//  Batch return data 

- (void)connection:(NSURLConnection *) connection didReceiveData:(NSData *)data {

    [_data appendData:data];

    NSLog(@"%@", _data);

}

 

//  The data is fully returned 

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {

    NSString *dataString =  [[NSString alloc] initWithData:_data encoding:NSUTF8StringEncoding];

    NSLog(@"%@", dataString);

}