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我正在學習RESTKit，並且我正在跟隨this教程，這是根據以前版本的RESTKit，並且很多已在v0.20.0中更改，所以我正在閱讀有關新版本和在教程中執行相同的任務。RESTKit的問題，無法正確映射
現在映射存在一個問題，我花了很多時間沒有成功。我得到的錯誤是：
error: Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No response descriptors match the response loaded." UserInfo=0x758d320 {NSErrorFailingURLStringKey=https://api.foursquare.com/v2/venues/search?client_id=<client id>&client_secret=KYHQHRYJ4PYFJYEG1F1IQVLQDM4G1HZ1STB2O1VUVUVQZBGS<client secret>&ll=37.33,-122.03&query=coffee&v=20120602, NSLocalizedFailureReason=A 200 response was loaded from the URL 'https://api.foursquare.com/v2/venues/search?client_id=<client id>&client_secret=<client secret>&ll=37.33,-122.03&query=coffee&v=20120602', which failed to match all (1) response descriptors:
<RKResponseDescriptor: 0x9566a60 baseURL=https://api.Foursquare.com/v2/ pathPattern=(null) statusCodes=200-299> failed to match: response URL 'https://api.foursquare.com/v2/venues/search?client_id=<client id>&client_secret=<client secret>&ll=37.33,-122.03&query=coffee&v=20120602' is not relative to the baseURL 'https://api.Foursquare.com/v2/'., NSLocalizedDescription=No response descriptors match the response loaded., keyPath=null, NSErrorFailingURLKey=https://api.foursquare.com/v2/venues/search?client_id=<client id>&client_secret=<client secret>&ll=37.33,-122.03&query=coffee&v=20120602, NSUnderlyingError=0x758d3a0 "No mappable object representations were found at the key paths searched."}
Venue.h是：
#import <Foundation/Foundation.h>
@interface Venue : NSObject
@property (strong, nonatomic) NSString *name;
@end
Venue.m是：
#import "Venue.h"
@implementation Venue
@synthesize name;
@end
，我在MasterViewController.m在ViewDidAppear方法做的一切，即：
- (void) viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
NSURL *baseURL = [NSURL URLWithString:@"https://api.Foursquare.com/v2"];
AFHTTPClient * client = [AFHTTPClient clientWithBaseURL:baseURL];
[client setDefaultHeader:@"Accept" value:RKMIMETypeJSON];
RKObjectManager *objectManager = [[RKObjectManager alloc] initWithHTTPClient:client];
RKObjectMapping *venueMapping = [RKObjectMapping mappingForClass:[Venue class]];
[venueMapping addAttributeMappingsFromDictionary:@{
@"name" : @"name"
}];
RKResponseDescriptor * responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:venueMapping
pathPattern:nil
keyPath:@"response.venues"
statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[objectManager addResponseDescriptor:responseDescriptor];
NSString *latLon = @"37.33,-122.03";
NSString *clientID = [NSString stringWithUTF8String:kCLIENTID];
NSString *clientSecret = [NSString stringWithUTF8String:kCLIENTSECRET];
NSDictionary *queryParams;
queryParams = [NSDictionary dictionaryWithObjectsAndKeys:latLon, @"ll", clientID, @"client_id", clientSecret, @"client_secret", @"coffee", @"query", @"20120602", @"v", nil];
//NSLog(@"object manager: %@ - %@", objectManager.baseURL, [[objectManager responseDescriptors] objectAtIndex:0]);
/*
RKRelationshipMapping* relationShipMapping = [RKRelationshipMapping relationshipMappingFromKeyPath:@"venues"
toKeyPath:@"venues"
withMapping:venueMapping];
[venueMapping addPropertyMapping:relationShipMapping]; */
[objectManager getObjectsAtPath:@"https://api.Foursquare.com/v2/venues/search"
parameters:queryParams
success:^(RKObjectRequestOperation * operaton, RKMappingResult *mappingResult)
{
NSLog(@"success: mappings: %@", mappingResult);
}
failure:^(RKObjectRequestOperation * operaton, NSError * error)
{
NSLog (@"failure: operation: %@ \n\nerror: %@", operaton, error);
}];
}
我hav e在瀏覽器中檢查了響應，並且沒問題，但出於某種原因，我做的任何事都沒有擺脫錯誤。我陷入了映射的第一步，無法前進。所有關於這個主題在互聯網上的例子和文件都過時了，沒有RESTkit的舊版本的經驗，我無法弄清楚。請告訴我做錯了什麼。
使用xcode 4.5和iOS6版本。
響應中心（在瀏覽器中選中）：
{"meta":{"code":200},"response":{"venues":[{"id":"4f482132e4b0f85d07c34cb5","name":"De Anza 3 Coffee Bar","contact":{},"location":{"address":"10500 De Anza Blvd","lat":37.329438,"lng":-122.03083,"distance":96,"postalCode":"95014","city":"Cupertino","state":"CA","country":"United States","cc":"US"},"canonicalUrl":"https:\/\/foursquare.com\/v\/de-anza-3-coffee-bar\/4f482132e4b0f85d07c34cb5","categories":[{"id":"4bf58dd8d48988d1e0931735","name":"Coffee Shop","pluralName":"Coffee Shops","shortName":"Coffee Shop","icon":{"prefix":"https:\/\/foursquare.com\/img\/categories\/food\/coffeeshop_","sizes":[32,44,64,88,256],"name":".png"},"primary":true}],"verified":false,"restricted":true,"stats":{"checkinsCount":1,"usersCount":1,"tipCount":0},"likes":{"count":0,"groups":[]},"specials":{"count":0,"items":[]},"hereNow":{"count":0,"groups":[]},"referralId":"v-1357121711"},{"id":"40ccea80f964a52019011fe3","name":"Coffee Society","contact":{"phone":"4087258091","formattedPhone":"(408) 725-8091"},"location":{"address":"21265 Stevens Creek Blvd","crossStreet":"at Oaks Shopping Center","lat":37.32330342,"lng":-122.047382,"distance":1709,"postalCode":"95014","city":"Cupertino","state":"CA","country":"United States","cc":"US"},"canonicalUrl":"https:\/\/foursquare.com\/v\/coffee-society\/40ccea80f964a52019011fe3","categories":[{"id":"4bf58dd8d48988d1e0931735","name":"Coffee Shop","pluralName":"Coffee Shops","shortName":"Coffee Shop","icon":{"prefix":"https:\/\/foursquare.com\/img\/categories\/food\/coffeeshop_","sizes":[32,44,64,88,256],"name":".png"},"primary":true}],"verified":false,"restricted":true,"stats":{"checkinsCount":2536,"usersCount":869,"tipCount":24},"likes":{"count":0,"groups":[]},"specials":{"count":0,"items":[]},"hereNow":{"count":0,"groups":[]},"referralId":"v-1357121711"}, .....
非常感謝，我從來沒有想到這會成爲問題，也感謝將教程轉換爲v0.20的努力！ – SpeedBirdNine
@Tilo我們在哪裏可以找到您的轉換教程？這會有所幫助。 – Danny