OStack程序员社区-中国程序员成长平台

标题: ios - RestKit 映射错误的对象 [打印本页]

---

作者: 菜鸟教程小白    时间: 2022-12-12 17:57
标题: ios - RestKit 映射错误的对象

我正在使用 RestKit，这就是我初始化它并添加路由和描述符的方式:

 - (void)initRestClient
 {
     NSURL *baseURL = [NSURL URLWithString:kSomeBaseURL];
     self.manager = [RKObjectManager managerWithBaseURL:baseURL];
     [self.manager setRequestSerializationMIMEType:RKMIMETypeJSON];
     [self.manager setAcceptHeaderWithMIMEType:RKMIMETypeJSON];
     [self.manager addResponseDescriptorsFromArray:[RKObjectManager sharedManager].responseDescriptors];
     [self.manager addRequestDescriptorsFromArray:[RKObjectManager sharedManager].requestDescriptors];
     [self.manager.HTTPClient.operationQueue setMaxConcurrentOperationCount:5];
     [RKObjectManager setSharedManager:self.manager];

     //    AFHTTPClient *client = [RKObjectManager sharedManager].HTTPClient;

     [self initRoutes];
     [self initMappingObjectsAndDiscriptors];
 }

 - (void)initRoutes
 {    
     RKRoute *bannersRoute = [RKRoute routeWithClass:[RKBanner class] pathPattern"Banners?categoryID=:categoryID" method:RKRequestMethodGET];
     bannersRoute.shouldEscapePath = YES;
     [self.manager.router.routeSet addRoute:bannersRoute];

     RKRoute *branchesRoute = [RKRoute routeWithClass:[RKBranches class] pathPattern"Branches?city=:city&type=:type" method:RKRequestMethodGET];
     branchesRoute.shouldEscapePath = YES;
     [self.manager.router.routeSet addRoute:branchesRoute];

     RKRoute *shortTokenRoute = [RKRoute routeWithClass:[RKShortToken class] pathPattern"users/login/quick/shortToken?phone=:phone&extraCode=:extraCode" method:RKRequestMethodGET];
     shortTokenRoute.shouldEscapePath = YES;
     [self.manager.router.routeSet addRoute:shortTokenRoute];

     RKRoute *longTokenRoute = [RKRoute routeWithClass:[RKLongToken class] pathPattern"users/login/quick/userDetails?shortToken=:shortToken" method:RKRequestMethodGET];
     longTokenRoute.shouldEscapePath = YES;
     [self.manager.router.routeSet addRoute:longTokenRoute];
 }

- (void)initMappingObjectsAndDiscriptors
{
    RKObjectMapping *bannerMapping = [RKObjectMapping mappingForClass:[RKBanner class]];
    [bannerMapping addAttributeMappingsFromDictionary:[RKBanner getAttributes]];
    RKResponseDescriptor *bannerDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:bannerMapping method:RKRequestMethodAny pathPattern:nil keyPath"Banners" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

    RKObjectMapping *branchesMapping = [RKObjectMapping mappingForClass:[RKBranches class]];
    [branchesMapping addAttributeMappingsFromDictionary:[RKBranches getAttributes]];
    RKResponseDescriptor *branchesDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:branchesMapping method:RKRequestMethodGET pathPattern:nil keyPath"Branches" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

    RKObjectMapping *shortTokenMapping = [RKObjectMapping mappingForClass:[RKShortToken class]];
    [shortTokenMapping addAttributeMappingsFromDictionary:[RKShortToken getAttributes]];
    RKResponseDescriptor *shortTokenDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:shortTokenMapping method:RKRequestMethodGET pathPattern:nil keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

    RKObjectMapping *longTokenMapping = [RKObjectMapping mappingForClass:[RKLongToken class]];
    [longTokenMapping addAttributeMappingsFromDictionary:[RKLongToken getAttributes]];
    //    longTokenMapping.setDefaultValueForMissingAttributes = YES;
    //    longTokenMapping.setNilForMissingRelationships = YES;
    RKResponseDescriptor *longTokenDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:longTokenMapping method:RKRequestMethodGET pathPattern:nil keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

   [self.manager addResponseDescriptorsFromArray[bannerDescriptor, branchesDescriptor, shortTokenDescriptor, longTokenDescriptor]];

}

这是每个类的构建方式:

@interface RKBanner : NSObject
@property (strong, nonatomic) NSNumber *idNum;
@property (strong, nonatomic) NSString *name;
@property (strong, nonatomic) NSString *addressURL;
@property (strong, nonatomic) NSString *bannerPosition;
@property (strong, nonatomic) NSString *imageALT;
@property (strong, nonatomic) NSNumber *imageHeight;
@property (strong, nonatomic) NSString *imageURL;
@property (strong, nonatomic) NSNumber *imageWidth;
@property (strong, nonatomic) NSString *subtitle;
@property (strong, nonatomic) NSString *targetURL;
@property (strong, nonatomic) NSString *textURL;
@property (strong, nonatomic) NSString *title;
+ (NSDictionary*)getAttributes;
@end

@implementation RKBanner
+ (NSDictionary*)getAttributes
{
    return [NSDictionary dictionaryWithObjects[@"idNum", @"name", @"addressURL", @"bannerPosition", @"imageALT", @"imageHeight",
                                                 @"imageURL", @"imageWidth", @"subtitle", @"targetURL", @"textURL", @"title"]
                                       forKeys[@"ID", @"Name", @"AddressURL", @"BannerPosition", @"ImageALT", @"ImageHeight",
                                                 @"ImageURL", @"ImageWidth", @"SubTitle", @"TargetURL", @"TextURL", @"Title"]];
}
@end

@interface RKBranches : NSObject
@property (strong, nonatomic) NSNumber *idNum;
@property (strong, nonatomic) NSString *branchTitle;
@property (strong, nonatomic) NSString *address;
@property (strong, nonatomic) NSNumber *branchType;
@property (strong, nonatomic) NSString *city;
@property (strong, nonatomic) NSString *fax;
@property (assign, nonatomic) BOOL isCanOrder;
@property (assign, nonatomic) BOOL isMe;
@property (strong, nonatomic) NSString *openHours;
@property (strong, nonatomic) NSString *orderCode;
@property (strong, nonatomic) NSString *phone;
@property (strong, nonatomic) NSString *remarks;
+ (NSDictionary*)getAttributes;
@end

@implementation RKBranches
+ (NSDictionary*)getAttributes
{
    return [NSDictionary dictionaryWithObjects[@"idNum", @"branchTitle", @"address", @"branchType", @"city", @"fax",
                                                 @"isCanOrder", @"isMe", @"openHours", @"orderCode", @"phone", @"remarks"]
                                       forKeys:@[@"ID", @"Name", @"Address", @"BranchType", @"City", @"Fax",
                                                 @"IsCanOrder", @"IsMe", @"OpenHours", @"OrderCode", @"hone", @"Remarks"]];
}
@end

@interface RKShortToken : NSObject
@property (strong, nonatomic) NSString *responseError;
@property (strong, nonatomic) NSString *shortToken;
+ (NSDictionary*)getAttributes;
@end

@implementation RKShortToken
+ (NSDictionary*)getAttributes
{
    return [NSDictionary dictionaryWithObjects:@[@"responseError", @"shortToken"]
                                       forKeys:@[@"responseError", @"shortToken"]];
}
@end

@interface RKLongToken : NSObject
@property (strong, nonatomic) NSString *responseError;
@property (strong, nonatomic) NSString *responseMessage;
@property (strong, nonatomic) NSString *responseHttpCode;
@property (strong, nonatomic) NSString *responseUserMessage;
@property (strong, nonatomic) NSString *abroadInd;
@property (strong, nonatomic) NSString *accountType;
@property (strong, nonatomic) NSString *customerID;
@property (strong, nonatomic) NSString *longToken;
+ (NSDictionary*)getAttributes;
@end

@implementation RKLongToken
+ (NSDictionary*)getAttributes
{
    return [NSDictionary dictionaryWithObjects:@[@"responseError", @"responseMessage", @"responseHttpCode", @"responseUserMessage",
                                                 @"abroadInd", @"accountType", @"customerID", @"longToken"]
                                       forKeys:@[@"responseError", @"responseError.DeveloperMessage", @"responseError.HttpCode", @"responseError.UserMessage",
                                                 @"abroadInd", @"accountType", @"customerId", @"longToken"]];
}
@end

当我尝试调用 RKShortToken 时，我得到了很好的响应，但是我得到的对象是 RKLongToken:

- (void)quickLoginWithTelephoneNSString*)telephone extraCodeNSString *)extraCode completionBlockquickLoginExtraCodeCompletionBlock)success
{
    NSDictionary *params = @{ @"phone" : telephone, @"extraCode" : extraCode };
    [[RKObjectManager sharedManager] getObjectsAtPath:@"users/login/quick/shortToken?"
                                           parameters:params
                                              success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
                                                  NSLog(@"%@", operation.HTTPRequestOperation.responseString);
                                                  NSLog(@"%@", mappingResult.array);
                                                  success(YES);
                                              } failure:^(RKObjectRequestOperation *operation, NSError *error) {
                                                  NSLog(@"Error occurred.");
                                              }];
}

这是日志:

2014-01-06 15:46:01.428 Online[8796:60b] I restkit.network:RKObjectRequestOperation.m:180 GET 'http://10.174.10.35/service/service.svc/users/login/quick/shortToken?&extraCode=null&phone=0505717596'

 2014-01-06 15:50:03.999 Online[8796:60b] {"responseError":null,"shortToken":"I55933325601458654742"}
2014-01-06 15:46:01.577 Online[8796:60b] (
     "<RKLongToken: 0x14dd3a50>"
)

2014-01-06 15:46:04.490 Online[8796:1403] I restkit.network:RKObjectRequestOperation.m:250 GET 'http://10.174.10.35/service/service.svc/users/login/quick/shortToken?&extraCode=null&phone=0505717596' (200 OK / 1 objects) [request=3.0587s mapping=0.0030s total=3.1129s]

这里似乎有什么问题？

更新:

我已按照@Wain 告诉我的那样将 pathPattern 添加到描述符中，但现在我遇到了错误。它看起来像这样:

"No mappable object representations were found at the key paths searched."

NSLocalizedFailureReason=The mapping operation was unable to find any nested object representations at the key paths searched: Banners, Branches, BranchTypes, Cities, MenuList
The representation inputted to the mapper was found to contain nested object representations at the following key paths: responseError, shortToken
This likely indicates that you have misconfigured the key paths for your mappings., NSLocalizedDescription=No mappable object representations were found at the key paths searched., keyPath=null}`

---

Best Answer-推荐答案

您的所有响应描述符都有 pathPattern:nil，因此 RestKit 无法过滤并将应用所有这些描述符并查看会发生什么。因此，对于所有 JSON，您将获得多个对象，其中仅包含与 JSON 匹配的每个映射的部分。

要解决此问题，请添加路径模式以允许 RestKit 确定哪个响应描述符与您的每个请求匹配。

关于ios - RestKit 映射错误的对象，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20951445/

---

欢迎光临 OStack程序员社区-中国程序员成长平台 (https://ostack.cn/)

Powered by Discuz! X3.4