Question

我想向服务器发送请求，带有以下请求标头的PUT请求：

Content-Type: application/json; charset=UTF-8

以下NSDictionary：

{"title": "Sumit"}

我正在使用reskit发出put请求，发出了put请求，但是提供了与header相关的错误。我想知道在向远程服务器发送请求时如何设置标头和字典。此外，对于此任务，哪种方法最适合RKObjectManager： -

方法1： -

- NSMutableURLRequest *request = [manager requestWithObject:newImage
                                                   method:RKRequestMethodPUT
                                                     path:[kImageUrl stringByAppendingString:imageUrl]
                                               parameters:jsonParameters];

方法2： -

- (NSMutableURLRequest *)multipartFormRequestWithObject:(id)object
                                                 method:(RKRequestMethod)method
                                                   path:(NSString *)path
                                             parameters:(NSDictionary *)parameters
                              constructingBodyWithBlock:(void (^)(id <AFMultipartFormData> formData))block;

我得到的错误： -

(400 Bad Request) [0.4221 s]: Error Domain=AFNetworkingErrorDomain Code=-1016 
"Expected content type {(
   "application/x-www-form-urlencoded",
   "application/json"
)}, got text/plain" UserInfo=0xa0951c0 {NSLocalizedRecoverySuggestion=Bad Request,
AFNetworkingOperationFailingURLRequestErrorKey=<NSMutableURLRequest  
http://staging.zoomdeck.com/api/image/c5ot31sxnh8v/>, 
NSErrorFailingURLKey=http://staging.zoomdeck.com/api/image/c5ot31sxnh8v/,  
NSLocalizedDescription=Expected content type {(
    "application/x-www-form-urlencoded",
    "application/json"
)}, got text/plain, AFNetworkingOperationFailingURLResponseErrorKey=<
NSHTTPURLResponse: 0xa194530>}
2013-01-16 17:19:43.860 Zoomdeck[2905:4a07] E 
restkit.network:RKObjectRequestOperation.m:285 Object request failed: 
Underlying HTTP request operation failed with error: Error 
Domain=AFNetworkingErrorDomain Code=-1016 "Expected content type {(
    "application/x-www-form-urlencoded",
    "application/json"
)}, got text/plain" UserInfo=0xa0951c0 {NSLocalizedRecoverySuggestion=Bad Request,  
AFNetworkingOperationFailingURLRequestErrorKey=<NSMutableURLRequest 
http://staging.zoomdeck.com/api/image/c5ot31sxnh8v/>, 
NSErrorFailingURLKey=http://staging.zoomdeck.com/api/image/c5ot31sxnh8v/, 
NSLocalizedDescription=Expected content type {(
    "application/x-www-form-urlencoded",
    "application/json"
)}, got text/plain, AFNetworkingOperationFailingURLResponseErrorKey=
<NSHTTPURLResponse: 0xa194530>}
2013-01-16 17:19:43.861 Zoomdeck[2905:c07] Expected content type {(
    "application/x-www-form-urlencoded",
    "application/json"
)}, got text/plain

Answer 1

您的休息服务需要内容类型

"application/x-www-form-urlencoded"

或

"application/json"

但它获取内容类型

text/plain

您必须为您的请求设置contentType，如下所示：

NSMutableURLRequest *request = [manager requestWithObject:newImage
                                               method:RKRequestMethodPUT
                                                 path:[kImageUrl stringByAppendingString:imageUrl]
                                           parameters:jsonParameters];



[request setValue:@"application/json" forHTTPHeaderField:@"content-type"];

使用RESTkit PUT请求，更改标头并保存核心数据中的响应

1 个答案: