iphone - ASIHttprequest 用于登录认证

Question

我正在使用 ASIHttprequest 进行登录身份验证 Here is the deme code

我正在尝试的代码是:

[self setRequest:[ASIHTTPRequest requestWithURL:url1]];
[_request setUseKeychainPersistence:[useKeychain isOn]];
[_request setDelegate:self];
[_request setShouldPresentAuthenticationDialog:[useBuiltInDialog isOn]];
[_request setDidFinishSelector:@selector(topSecretFetchComplete:)];
[_request setDidFailSelector:@selector(topSecretFetchFailed:)];
[_request startAsynchronous];
[request setValidatesSecureCertificate:NO];
[_request setValidatesSecureCertificate:NO];

请求失败和请求完成方法

- (IBAction)topSecretFetchFailed:(ASIHTTPRequest *)theRequest{
   [responseField setText:[[request error] localizedDescription]];
   [responseField setFont:[UIFont boldSystemFontOfSize:12]];
}

- (IBAction)topSecretFetchComplete:(ASIHTTPRequest *)theRequest{
   [responseField setText:[request responseString]];
   [responseField setFont:[UIFont boldSystemFontOfSize:12]];
   NSLog(@"Response :%@",[request responseString]);

- (void)authenticationNeededForRequest:(ASIHTTPRequest *)theRequest{
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Please Login" message:[request authenticationRealm] delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK",nil];

[alertView addTextFieldWithValue:@"" label:@"Username"];
[alertView addTextFieldWithValue:@"" label:@"Password"];
[alertView show];

我是 ios 的新手所以请......
在此演示中，当我走钟时会弹出一个警报，但是当我使用我的网络服务时，它会给出这样的响应

Response :ASIHTTPRequest: 0xa846400

但不要弹出输入用户名和密码的警告 View

如果有任何其他更好的方法来验证登录，请建议我

我想以rootview登录，成功登录后可以进入应用

谢谢...

Answer 1

有时会出现空格、特殊字符和换行符在响应中的情况，因此首先修剪该字符串，然后像下面这样打印响应。

NSString *strResponse = [[theRequest responseString] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
NSLog(@"Response :%@",strResponse);

更新:

- (NSString *)flattenHTML:(NSString *)html {

    NSScanner *theScanner;
    NSString *text = nil;
    theScanner = [NSScanner scannerWithString:html];

    while ([theScanner isAtEnd] == NO) {

        [theScanner scanUpToString:@"<" intoString:NULL] ; 

        [theScanner scanUpToString:@">" intoString:&text] ;

        html = [html stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@"%@>", text] withString:@""];
    }
    //
    html = [html stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

    return html;
}

像下面这样使用这个方法..

 NSString *strResponse = [[theRequest responseString] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
 NSString *strFinal = [self flattenHTML:strResponse];
 NSLog(@"Response :%@",strFinal);