Question

我是iOS应用程序开发的新手。我将使用AFNetworking 3.0。在我进入手机号码的第一个视图。然后单击提交按钮然后它与服务器连接，我从服务器得到以下响应：

-(void)serverconnection

{

    NSString *Loginurl = [NSString stringWithFormat:@"https://24x7tracker.com/busservices/School/DriverPreLogin"];


NSDictionary *params = @{@"mobile":self.phonenumber.text,

                         @"archive":@"schooldb1"

                         };


AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];


manager.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];


manager.responseSerializer = [AFHTTPResponseSerializer serializer];

AFSecurityPolicy* policy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeCertificate];

[policy setValidatesDomainName:NO];

[policy setAllowInvalidCertificates:YES];

manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/html", nil];

manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/html",nil];



manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/plain",nil];


[manager POST:Loginurl parameters:params progress:nil success:^(NSURLSessionTask *task, id responseObject) {


    NSLog(@"Json: %@", [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding]);

    [self getdata:responseObject];


    NSString *str = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
    NSLog(@"responseData: %@", str);

    [self performSegueWithIdentifier:@"loginsegue" sender:self];

}
      failure:^(NSURLSessionTask *operation, NSError *error)

{

    NSLog(@"Error: %@", error);

    UIAlertController *Erroralert=   [UIAlertController

                                      alertControllerWithTitle:@" Network Connection Failed!!"

                                      message:@"Please try again"

                                      preferredStyle:UIAlertControllerStyleAlert];

    [self presentViewController:Erroralert animated:YES completion:nil];





    UIAlertAction* yesButton = [UIAlertAction

                                actionWithTitle:@"Ok"

                                style:UIAlertActionStyleDefault

                                handler:^(UIAlertAction * action)

                                {
                                    [self resignFirstResponder];

                                    [Erroralert dismissViewControllerAnimated:YES completion:nil];



                                }];

    [Erroralert addAction: yesButton];


}];


}

-(void)getdata:(NSData *)data

{}

现在我的问题是，如何从responseData中仅获取该令牌并从下一个视图将其发送到服务器。请帮帮我。

注意：每当我们每次调用服务令牌时都会改变。

我的代码是：

  var dt = [{"text":"DC=test,DC=in","children":[;
                var cnt = spl.length - 1;
                for (q = 0; q < cnt; q++) {
                    if (spl[q].startsWith(","))
                        dt += {"text":" + spl[q].split(",")[1] + "},;
                    else
                        dt += {"text":" + spl[q].split(",")[0] + "},;
                }
                dt += ]}];

Answer 1

你可以用两种方式做到这一点

<强> NSUserDefault

// NSArray *temp = (NSArray *)responseObject;

NSError *error;
NSArray *temp = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:&error];

[[NSUserDefaults standardUserDefaults] setObject:[[temp objectAtIndex:0] valueForKey:@"token"] forKey:@"token"];
[self performSegueWithIdentifier:@"loginsegue" sender:self];

<强>提取

用于检索String中的NSUserDefaults，您可以直接使用objectForKey

NSString *token = [[NSUserDefaults standardUserDefaults]objectForKey:@"token"];

将字符串传递给第二页，如

第一页创建一个全局值，用于将对象存储在字符串

@property (strong, nonatomic)          NSString *tokenString;

对响应对象进行serilize并将其存储在您需要的全局值中

                   NSError *error;
 NSArray *temp = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:&error];

     // in this line we assingn the current value to global value
     tokenString = [[temp objectAtIndex:0] valueForKey:@"token"];
      [self performSegueWithIdentifier:@"loginsegue" sender:self];

在该目标视图控制器上创建一个全局值以传递当前字符串

@property (strong, nonatomic)          NSString *fetchtokenString;

在第一个VC上，prepareForSegue方法将全球化值传递给第二页

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{

secondViewController *vc = segue.destinationViewController;
// pass the current object to second page value
vc.fetchtokenString = tokenString;

最后第二个VC你可以在viewDidload页面上获得值

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
 NSLog (@"token value ==%@",fetchtokenString);
}

Answer 2

您可以按照以下操作

像这样解析你的回复

variable

将您的令牌放在一个全局NSString *token = [json objectForkey:@"token"];假设

中

UIViewController

当您按下UIViewController时，请将此值设置为下一个property的属性。为此，您需要在下一个NSString中创建一个UIViewController类型@property(nonatomic, copy) NSString *token;，例如：

UIViewController

首先在UIViewControler中访问该属性。在推送下一个sectionViewControllerObject.token = token //variable of first UIViewController

之前，您必须添加以下行

import bs4
import requests
source = requests.get('https://www.youtube.com/feed/subscriptions')
sourceSoup = bs4.BeautifulSoup(source.text,'html.parser')
sourceSoup.select('#grid-319397 > li:nth-child(1) > div > div.yt-lockup-dismissable > div.yt-lockup-content > h3')
[]

Answer 3

@ Anbu.Karthik如果您想将第一个视图控制器中的值发送到第二个视图控制器，那么您可以通过多种方式使用segue或delegate或{{1} }。

我正在使用 swift 进行只获取令牌数据，只需使用目标C尝试此操作。

NSnotification

使用AFNetworking 3.0从下一个视图控制器发送响应服务器的特定参数？

3 个答案: