使用RestKit iOS將POST對象發佈到MVC4 webapi看不到json對象

嘗試從iOS使用RestKit調用ASP.NET 4 Web API，但序列化的json對象在服務器命令中未得到識別。任何人都可以幫忙嗎？使用RestKit iOS將POST對象發佈到MVC4 webapi看不到json對象

obj C class;

#import "NoddyModel.h" 
@synthesize messageId; 
@synthesize message; 
@end

（以上爲NSString的）自MVC服務

當量C＃;

using Core.MessageDocuments; 

namespace WebApi.Models 
{ 
    [DataContract] 
    public class NoddysModel : List<NoddyModel> 
    { 
     [DataMember(IsRequired = true)] 
     public long NumberOfMessages 
     { 
      get { return Count; } 
     } 
    } 

    [DataContract] 
    public class NoddyModel 
    { 
     public NoddyModel(string MessageId, string Message) 
     { 
      MessageId = MessageId; 
      Message = Message; 
     } 

     [DataMember] 
     public string MessageId { get; set; } 
     [DataMember] 
     public string Message { get; set; } 
    } 
}

和mvc命令;

// POST api/Noddy 
[HttpPost] 
public MessagesPostResponse Post(NoddyModel noddy) 
{ 
    int count = 999; 
    try 
    { 
     count = noddy.Message.Length + 9000; 
    } 
    catch (Exception e) 
    { 
     FileStream traceLog = new FileStream("C:\\logs\\Traces.svclog", FileMode.Append); 
     TextWriterTraceListener myListener = new TextWriterTraceListener(traceLog); 
     Trace.Listeners.Add(myListener); 
     myListener.WriteLine("Exception in POST NoddyModel calc count = " + e.Message + " response = " + HttpContext.Current.Request.Params.ToString()); 
     Trace.Flush(); 
     myListener.Flush(); 
     traceLog.Close(); 

     return new MessagesPostResponse(false, 0); 
    } 
    try 
    { 
     FileStream traceLog = new FileStream("C:\\logs\\Traces.svclog", FileMode.Append); 
     TextWriterTraceListener myListener = new TextWriterTraceListener(traceLog); 
     Trace.Listeners.Add(myListener); 
     myListener.WriteLine("Sending trace information : Noddy = " + noddy); 
     Trace.Flush(); 
     myListener.Flush(); 
     traceLog.Close(); 

     return new MessagesPostResponse(true, count); 
    } 
    catch (Exception e) 
    { 
     FileStream traceLog = new FileStream("C:\\logs\\Traces.svclog", FileMode.Append); 
     TextWriterTraceListener myListener = new TextWriterTraceListener(traceLog); 
     Trace.Listeners.Add(myListener); 
     myListener.WriteLine("Exception in POST NoddyModel = " + e.Message); 
     Trace.Flush(); 
     myListener.Flush(); 
     traceLog.Close(); 

     return new MessagesPostResponse(false, 0); 
    } 
}

和Obj C函數;

RKURL *baseURL = [RKURL URLWithString: @"http://ServerX/cirrusdev/api"]; 
RKObjectManager *objectManager = [RKObjectManager objectManagerWithBaseURLString: @"http://ServerX/cirrusdev/api"]; 
objectManager.client.baseURL = baseURL; 
[objectManager setSerializationMIMEType:RKMIMETypeJSON]; 

RKObjectRouter *dynrouter = [RKObjectRouter new]; 
[dynrouter routeClass:[NoddyModel class] toResourcePath:@"/messages" forMethod:RKRequestMethodPOST]; 

objectManager.router = dynrouter; 


RKObjectMapping* pmsg = [RKObjectMapping mappingForClass:[NSMutableDictionary class]]; 

[pmsg mapKeyPath: @"MessageId"  toAttribute:@"messageId" ]; 
[pmsg mapKeyPath: @"Message"  toAttribute:@"message"  ]; 

RKObjectMapping* pmsgSerializeMapping = [pmsg inverseMapping]; 
[objectManager.mappingProvider setSerializationMapping:pmsgSerializeMapping forClass:[NoddyModel class]]; 


NoddyModel *msg = [[NoddyModel alloc]init]; 
msg.messageId [email protected]"abc999"; 
msg.message = @"Hello Cirrus"; 

[objectManager postObject:msg delegate:self];

和來自RestKit的日誌;

> 2012-10-31 15:28:26.851 ELOI[74400:c07] D 
> restkit.network:RKClient.m:437 Reachability to host '0.0.0.0' 
> determined for client <RKClient: 0x76dda50>, unsuspending queue 
> <RKRequestQueue: 0x76ddb90 name=(null) suspended=YES requestCount=1 
> loadingCount=0/5> 2012-10-31 15:28:26.851 ELOI[74400:c07] D 
> restkit.network:RKRequest.m:437 Sending asynchronous POST request to 
> URL `http://ServerX/cirrusdev/api/messages`. 2012-10-31 15:28:26.852 
> ELOI[74400:c07] D restkit.network:RKObjectLoader.m:374 POST or PUT 
> request for source object <NoddyModel: 0x7696ba0>, serializing to MIME 
> Type application/json for transport... 2012-10-31 15:28:26.853 
> ELOI[74400:c07] T restkit.network:RKRequest.m:399 Prepared POST 
> URLRequest '<NSMutableURLRequest 
> http://ServerX/cirrusdev/api/messages>'. HTTP Headers: { 
>  Accept = "application/json"; 
>  "Content-Length" = 47; 
>  "Content-Type" = "application/json"; }. HTTP Body: {"MessageId":"abc999","Message":"Hello Cirrus"}. 2012-10-31 
> 15:28:26.855 ELOI[74400:c07] D restkit.network:RKResponse.m:198 
> Proceeding with request to <NSURLRequest 
> http://ServerX/cirrusdev/api/messages> 2012-10-31 15:28:31.224 
> ELOI[74400:c07] D restkit.network:RKResponse.m:219 NSHTTPURLResponse 
> Status Code: 200 2012-10-31 15:28:31.224 ELOI[74400:c07] D 
> restkit.network:RKResponse.m:220 Headers: { 
>  "Cache-Control" = "no-cache"; 
>  "Content-Length" = 74; 
>  "Content-Type" = "application/json; charset=utf-8"; 
>  Date = "Wed, 31 Oct 2012 15:28:30 GMT"; 
>  Expires = "-1"; 
>  Pragma = "no-cache"; 
>  Server = "Microsoft-IIS/7.5"; 
>  "X-AspNet-Version" = "4.0.30319"; 
>  "X-Powered-By" = "ASP.NET"; } 2012-10-31 15:28:31.225 ELOI[74400:c07] T restkit.network:RKResponse.m:231 Read response body: 
> {"Successful":false,"Message":"We have received 0 
> message(s)","Data":null}

PS我手動編輯服務器名稱，以便如果不同，請忽略

來源

2012-10-31 stan4th

您在服務器上進行了哪些調試？哪些代碼塊從Web服務返回？究竟是什麼問題？ –

嗨，目前它不可能讓我得到服務器跟蹤文件。但它告訴我的是，它進入Post操作，它嘗試下面的代碼（第一位）嘗試 count = noddy.Message.Length + 9000; }但報告noddy沒有實例化 - 所以我們可以看到它沒有將json數據轉移到對象中NoddyModel – stan4th

只是爲了通知您我已經解決了這個問題，明天我會發佈一個解決方案 - 當我可以確保確切的細節。 – stan4th

有很多事情我需要通過試錯嘗試 - 最後一點是，ASP.NET的Web API動作無法實例化Noddy對象，因爲它需要一個無參數初始值設定項。

來源

2012-11-06 16:20:22 stan4th

使用RestKit iOS將POST對象發佈到MVC4 webapi看不到json對象

回答

相關問題