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我正在尝试使用 RESTKit 发布一些数据(具体来说是网站的身份验证令牌),但遇到了麻烦。每次我运行该方法时,我都会得到:

'NSInvalidArgumentException', reason: '`RKRequestDescriptor` objects must be initialized 
with a mapping whose target class is `NSMutableDictionary`, got 'Login' (see 
`[RKObjectMapping requestMapping]`)'

此外,代码中有许多“不兼容的指针类型”警告。

这是我的方法,它非常丑陋和糟糕,我需要一些帮助来解决。[self postToken]当按下按钮时,我在 IBAction 方法中执行一个操作。我从另一个文件中获取变量 userAuthToken,该文件是使用来自 POST 请求的 json 响应设置的,而不是使用 RESTKit。当我知道如何成功时,我最终会将该 POST 转换为 RESTKit。“userAuthTokenMethod”方法与“postToken”方法在同一个文件中,它允许我使用在 AppDelegate 中初始化的 userAuthToken 对象,因此它充当全局变量。

- (void)postToken
{        
    RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[Login class]];
    [mapping addAttributeMappingsFromDictionary:@{@"token": @"token"}];
    NSIndexSet *statusCodeSet = RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful);
    RKResponseDescriptor *tokenResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:mapping method:nil pathPattern:nil keyPath:nil statusCodes:statusCodeSet];
    RKRequestDescriptor *tokenRequestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:mapping objectClass:self rootKeyPath:nil method:nil];
    [[RKObjectManager sharedManager] addRequestDescriptor:tokenRequestDescriptor];
    RKObjectManager *tokenManager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:@"https://websitetest.com/doctors/find"]];
    [tokenManager addResponseDescriptor:tokenResponseDescriptor];
    [tokenManager addRequestDescriptor:tokenRequestDescriptor];
    [tokenManager postObject:[[self userAuthTokenMethod] userAuthToken] path:nil parameters:nil success:nil failure:nil];


    NSURL *tokenURL = [NSString stringWithFormat:@"https://websitetest.com/doctors/find?name=%@&location=%@",nameIDTextField.text, locationTextField.text];
    NSMutableURLRequest *tokenRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:tokenURL]];
    RKObjectManager *tokenObjectManager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:tokenURL]];
    [tokenObjectManager.HTTPClient setDefaultHeader:@"Auth-Token" value:[[self network360Edge] userAuthToken]];
    RKObjectRequestOperation *tokenOperation = [[RKObjectRequestOperation alloc] initWithRequest:tokenRequest responseDescriptors:@[tokenResponseDescriptor]];
    NSLog(@"Token being POSTed ==> %@", [[self userAuthTokenMethod] userAuthToken]);
    [tokenOperation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation, RKMappingResult *result){
        NSLog(@"Response for POST request with token ==> %@", [result array]);
    }failure:nil];
    [tokenOperation start];
}

这是我的映射提供程序文件 MappingProvider 的代码:

//MappingProvider.h
#import <Foundation/Foundation.h>
#import <RestKit/RestKit.h>

@interface MappingProvider : NSObject

+(RKMapping *)tokenMapping;

@end

//MappingProvider.m
#import "MappingProvider.h"
#import <RestKit/RestKit.h>
#import "Login.h"

@implementation MappingProvider

+(RKMapping *)tokenMapping
{
    RKObjectMapping *tokenMapping = [RKObjectMapping mappingForClass:[Login class]];
    [tokenMapping addAttributeMappingsFromArray:@[@"token"]];
    return tokenMapping;
}

@end

这是初始化“令牌”的登录文件的代码:

//Login.h
#import <Foundation/Foundation.h>

@interface Login : NSObject

@property (nonatomic, copy)NSString *token;

@end

我对 RESTKit 很陌生,对 Objective-C 也有些陌生(我已经在里面编码了大约一个月)。我将不胜感激修复我的代码的所有帮助。

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1 回答 1

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这个问题很老,但问题是请求应该使用没有类规范的映射,因为请求使用指定类的描述符(参见下面的 2 行),如下所示:

RKObjectMapping *requestMapping = [RKObjectMapping requestMapping];

可能你也有问题:

RKRequestDescriptor *tokenRequestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:mapping objectClass:self rootKeyPath:nil method:nil];

更具体地说,在objectClass:self中,它应该是objectClass:[self class]或包含令牌属性的所需类,如下所示:

RKRequestDescriptor *tokenRequestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:requestMapping objectClass:[self class] rootKeyPath:nil method:nil];

希望这可以帮助

于 2017-08-17T01:44:49.997 回答