Question

我在保存来自POST请求的响应时遇到问题。基于AFnetworking documentation和NSScreencast tutorial我创建了自己的AFHTTPRequestOperationManager子类，但我不确定为什么没有保存响应。

我怎么知道，答案没有保存？因为控制台中的there is an error:(null)消息和我的方法不执行segue。

我知道我正在获取值，因为我放置的断点NSURLSessionDataTask

但我不知道为什么这些值没有保存，我收到一条错误信息。我感谢任何帮助。

APIClient /经理

AuthAPIManager.h

#import "AFHTTPSessionManager.h"

    @interface AuthAPIManager : AFHTTPSessionManager
    +(AuthAPIManager *)sharedManager;
    -(NSURLSessionDataTask *)initializeLogin:(NSString *)username completion:(void(^)(NSDictionary *results, NSError *error))completion;

    //for login
    @property (nonatomic,readonly,retain)NSString *StoreIdentifierForVendor;
    @property(nonatomic,copy)NSString *devicetype;
    @end

AuthAPIManager.m

#import "AuthAPIManager.h"
#import "LoginInfo.h"
#import "CredentialStore.h"
static AuthAPIManager *sharedManager =nil;
static dispatch_once_t onceToken;
@implementation AuthAPIManager

+(AuthAPIManager *)sharedManager
{
        dispatch_once(&onceToken, ^{
            sharedManager = [[AuthAPIManager alloc] initWithBaseURL:[NSURL URLWithString:BASE_URL]];
            sharedManager.responseSerializer=[AFJSONResponseSerializer serializer];
            sharedManager.requestSerializer = [AFJSONRequestSerializer serializer];
        });

    return sharedManager;
}

-(id)initWithBaseURL:(NSURL *)url
{
    self = [super initWithBaseURL:url];
    if (self) {
    }
    return self;
}
-(NSURLSessionDataTask *)initializeLogin:(NSString *)username completion:(void (^)(NSDictionary *, NSError *))completion
{
    _devicetype = @"ios";
    _StoreIdentifierForVendor = [[[UIDevice currentDevice]identifierForVendor]UUIDString];

    id loginParameters =@{@"AccountId":username,
                          @"DeviceType":_devicetype
                          };




    NSURLSessionDataTask *task =[self POST:@"/Accn" parameters:loginParameters
                                   success:^(NSURLSessionDataTask *task, id responseObject)
                                   {
                                       NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)task.response;
                                       if (httpResponse.statusCode == 200) {
                                         LoginInfo *loginInfo =[[LoginInfo alloc]initWithDictionary:responseObject];
                                           CredentialStore *credStore =[CredentialStore sharedStore];
                                           credStore.loginInfo =loginInfo;
                                           completion(responseObject,nil);
                                           loginInfo = responseObject;



                                       } else {
                                           dispatch_async(dispatch_get_main_queue(), ^{
                                               completion(nil, nil);
                                           });
                                           NSLog(@"Received: %@", responseObject);
                                           NSLog(@"Received HTTP %d", httpResponse.statusCode);
                                       }

                                   } failure:^(NSURLSessionDataTask *task, NSError *error) {
                                       dispatch_async(dispatch_get_main_queue(), ^{
                                           completion(nil, error);
                                       });
                                   }];
    return task;
}
@end

这就是我在视图控制器中调用方法的方法

- (IBAction)login:(id)sender
{
 [_usernameTextField resignFirstResponder];
    [SVProgressHUD show];
 NSURLSessionDataTask *task = [[AuthAPIManager sharedManager] initializeLogin:self.usernameTextField.text completion:^(NSDictionary *results, NSError *error)
                                  {
                                      if (results) {
                                          LoginInfo *loginInfo = [[LoginInfo alloc]initWithDictionary:results];
                                          CredentialStore *credStore =[ CredentialStore sharedStore];
                                          credStore.loginInfo =loginInfo;
                                          [self performSegueWithIdentifier:@"welcomeViewSegue" sender:self];
                                      }

                                      else
                                      {
                                          NSLog(@"there is an error:%@",error);
                                      }
                                  }];
    [SVProgressHUD dismiss];
}

Answer 1

正在调用您的成功阻止，但您的状态代码不是200。

你正在调用你的完成块：

completion(nil, nil);

所以这段代码：

if (results) {
   [snip]
}

else
{
    NSLog(@"there is an error:%@",error);
}

传递nil结果对象。

在if (httpResponse.statusCode == 200)上设置断点并检查调试器中的httpResponse，看看为什么它不符合您的预期。（您可能会获得不同的成功代码，例如204。）
使用结果而不是nil调用完成功能块。

邮件请求响应未保存在afnetworking 2.0中

1 个答案: