iOS URL请求不起作用

时间:2015-05-12 09:55:20

标签: ios objective-c nsurlconnection nsurlrequest

我正在尝试将数据发送到PHP网页(已经知道如何处理接收URL)。单击特定按钮后,我的应用程序应该发送URL请求,但事实并非如此。我正在使用“NSURLConnectionDelegate”,但我没有实现任何方法,我是否正确地符合它?我有以下代码:

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)buttonClicked:(id)sender {

    NSString *temp = [NSString stringWithFormat:@"www.private.com/recievedata.php?name=%@&address=%@&longitude=%@&latitude=%@",_nameLabel.text,_addressLabel.text,_longitudeLabel.text,_latitudeLabel.text];

    NSURL *url = [NSURL URLWithString:temp];
    NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url];

    [NSURLConnection connectionWithRequest:request delegate:self];
}
@end

2 个答案:

答案 0 :(得分:1)

这是获得所需内容的最简单方法:

[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)
{
    //Handle here
}];

这是非常有限的,因为您无法取消此连接,如果需要更复杂的SSL挑战,则无法提供。但似乎这对你来说已经足够了。

更新:从iOS 9开始,不推荐使用NSURLConnection。相反,请使用NSURLSession。以上与上面相同,使用新API实现:

[[[NSURLSession sharedSession] dataTaskWithRequest:request
                               completionHandler:^(NSData *data, NSURLResponse *response, NSError *error)
{
    //Handle here
}] resume];

答案 1 :(得分:0)

使用以下代码代替 [NSURLConnection connectionWithRequest:request delegate:self];

[NSURLConnection sendAsynchronousRequest:urlRequest queue:
[[NSOperationQueue alloc] init] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)
 {
    if (error)
    {  
        //error message    
    }
    else
    {
       dispatch_async(dispatch_get_main_queue(), ^{

        //handle server's response here...

    });
    }
}];

希望它会对你有所帮助。谢谢。