Question

我尝试使用名称和密码进行登录并将其传递给Url，但我的连接失败并给我这个错误。我做错了什么？

连接失败！错误 - 不支持的网址proyecto.lavidapirata.es/main/validate_credentials /

这是我的方法：

-(IBAction)login:(id)sender{

    NSString *uName = userName.text;
    NSString *uPass = userPass.text;

    if([userName.text isEqualToString:@""] || [userPass.text isEqualToString:@""])
    {
        greeting.text = @"Input Your Value";
        //[userName resignFirstResponder];
        //[userPass resignFirstResponder];
        return;
    }

    NSString *post =
    [[NSString alloc] initWithFormat:@"uname=%@&pwd=%@",uName,uPass];

    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding
                         allowLossyConversion: YES];

    NSString *postLength = [NSString stringWithFormat:@
                            "%d",[postData length]];


    //Parte de la petición
    NSURL *url =
    [NSURL URLWithString:@"http://proyecto.lavidapirata.es"];
    //proyecto.lavidapirata.es/main/validate_credentials
    NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
    [theRequest setHTTPMethod:@"POST"];
    [theRequest setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [theRequest setHTTPBody:postData];

    NSURLConnection *theConnection = [[NSURLConnection alloc]
                                      initWithRequest:theRequest delegate:self];

    if(theConnection)
    {
        webData = [[NSMutableData data] retain];
    }
    else 
    {

    }

    //[userName resignFirstResponder];
    //[userPass resignFirstResponder];
    userName.text = nil;
    userPass.text = nil;    


}

这是我的控制台：

2011-05-26 11：50：32.856 PruebaPush [764：207] - [NSCFString setLength：]：无法识别的选择器发送到实例0x4bac460 2011-05-26 11：50：32.861 PruebaPush [764：207] *由于未捕获的异常'NSInvalidArgumentException'终止应用程序，原因：' - [NSCFString setLength：]：无法识别的选择器发送到实例0x4bac460' * 在第一次投掷时调用堆栈：（ 0 CoreFoundation 0x00dcb5a9 exceptionPreprocess + 185 1 libobjc.A.dylib 0x00f1f313 objc_exception_throw + 44 2 CoreFoundation 0x00dcd0bb - [NSObject（NSObject）doesNotRecognizeSelector：] + 187 3 CoreFoundation 0x00d3c966 __ 转发 + 966 4 CoreFoundation 0x00d3c522 _CF_forwarding_prep_0 + 50 5 PruebaPush 0x00003320 - [FirstViewController连接：didReceiveResponse：] + 111 6基础0x0005c3d0 - [NSURLConnection（NSURLConnectionReallyInternal）sendDidReceiveResponse：] + 143 7基金会0x0005c306 _NSURLConnectionDidReceiveResponse + 146 8 CFNetwork 0x013730cc _ZN19URLConnectionClient29_clientSendDidReceiveResponseEP14_CFURLResponsePNS_26ClientConnectionEventQueueE + 46 9 CFNetwork 0x0143f7ec _ZN19URLConnectionClient26ClientConnectionEventQueue33processAllEventsAndConsumePayloadEP20XConnectionEventInfoI12XClientEvent18XClientEventParamsEl + 560 10 CFNetwork 0x0143f9cf _ZN19URLConnectionClient26ClientConnectionEventQueue33processAllEventsAndConsumePayloadEP20XConnectionEventInfoI12XClientEvent18XClientEventParamsEl + 1043 11 CFNetwork 0x0136ac84 _ZN19URLConnectionClient13processEventsEv + 100 12 CFNetwork 0x0136aad3 _ZN17MultiplexerSource7performEv + 251 13 CoreFoundation 0x00dac8ff CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 15 14 CoreFoundation 0x00d0a88b __CFRunLoopDoSources0 + 571 15 CoreFoundation 0x00d09d86 __CFRunLoopRun + 470 16 CoreFoundation 0x00d09840 CFRunLoopRunSpecific + 208 17 CoreFoundation 0x00d09761 CFRunLoopRunInMode + 97 18 GraphicsServices 0x017221c4 GSEventRunModal + 217 19 GraphicsServices 0x01722289 GSEventRun + 115 20 UIKit 0x002c9c93 UIApplicationMain + 1160 21 PruebaPush 0x00002778 main + 102 22 PruebaPush 0x00002709 start + 53 ）抛出'NSException'实例后调用终止

Answer 1

错误表示正在使用的网址错误。请检查您的网址

连接失败！错误 - 不支持的URL

1 个答案: