ios上的RestKit 404错误

以下方法调用Rest API（http://128.199.186.47:8080/DenkoStationServer-1/denkoservice/price）。ios上的RestKit 404错误

- (void)displayInternetConnectivityMessage { 
    NetworkStatus netStatus = [self.internetReachability currentReachabilityStatus]; 

    if (netStatus == NotReachable)  { 
     if ([self isMyanmar]) 
      [self.view makeToast:@"tifwmeuf zGifhrxm;yg"]; 
     else 
      [self.view makeToast:@"No internet connection"];   
    } else { 
     NSURL *baseURL = [NSURL URLWithString:@"http://128.199.186.47:8080/DenkoStationServer-1/denkoservice"]; 
     NSURLRequest *request = [NSURLRequest requestWithURL:baseURL]; 

     RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[Price class]]; 
     [mapping addAttributeMappingsFromDictionary:@{@"id": @"ron95", @"ron95": @"ron92", @"dieselNormal": @"dieselNormal", @"dieselSpecial": @"dieselSpecial", @"postDate": @"postDate"}]; 

     RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:mapping method:RKRequestMethodGET pathPattern:nil keyPath:@"price" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]; 

     RKObjectRequestOperation *objectRequestOperation = [[RKObjectRequestOperation alloc] initWithRequest:request responseDescriptors:@[ responseDescriptor ]]; 
     [objectRequestOperation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) { 
      if ([self isMyanmar]) 
       [self.view makeToast:@"qmAmESifh csdwfqufjcif; atmifjrifonf"]; 
      else 
       [self.view makeToast:@"Server connection successful"]; 
      [self updateLocalPrice]; 
     } failure:^(RKObjectRequestOperation *operation, NSError *error) { 
      NSLog(@"error: %@", [error localizedDescription]); 
      if ([self isMyanmar]) 
       [self.view makeToast:@"qmAmESifh qufoG,fr&yg"]; 
      else 
       [self.view makeToast:@"Connection with server failed"]; 
     }]; 

     [objectRequestOperation start]; 
    } 
}

此调用应该像这样返回JSON：

[{"id":1,"ron95":700.0,"ron92":700.0,"dieselNormal":700.0,"dieselSpecial":700.0,"postDate":1435465383000}, 
{"id":2,"ron95":800.0,"ron92":730.0,"dieselNormal":700.0,"dieselSpecial":730.0,"postDate":1435819788000}]

不是接收JSON的，电话将返回以下错误：

2015-07-19 17:54:19.334 DenkoStation[35344:1002137] I restkit:RKLog.m:49 RestKit logging initialized... 
2015-07-19 17:54:19.836 DenkoStation[35344:1002137] Presenting view controllers on detached view controllers is discouraged <RootViewController: 0x7fc042f31eb0>. 
2015-07-19 17:54:19.848 DenkoStation[35344:1002137] Reachability Flag Status: -R -----l- networkStatusForFlags 
2015-07-19 17:54:19.883 DenkoStation[35344:1002137] h=568 
2015-07-19 17:54:19.883 DenkoStation[35344:1002137] scale=2.000000 
2015-07-19 17:54:19.919 DenkoStation[35344:1002137] I restkit.network:RKObjectRequestOperation.m:150 GET 'http://128.199.186.47:8080/DenkoStationServer-1/denkoservice' 
2015-07-19 17:54:21.992 DenkoStation[35344:1002218] E restkit.network:RKObjectRequestOperation.m:551 Object request failed: Underlying HTTP request operation failed with error: Error Domain=org.restkit.RestKit.ErrorDomain Code=-1011 "Expected status code in (200-299), got 404" UserInfo=0x7fc042d8dbb0 {NSLocalizedRecoverySuggestion=<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/> 
<title>Error 404 Not Found</title> 
</head> 
<body><h2>HTTP ERROR 404</h2> 
<p>Problem accessing /DenkoStationServer-1/denkoservice. Reason: 
<pre> Not Found</pre></p><hr /><i><small>Powered by Jetty://</small></i><br/>             
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</body> 
</html> 
, NSErrorFailingURLKey=http://128.199.186.47:8080/DenkoStationServer-1/denkoservice, AFNetworkingOperationFailingURLRequestErrorKey=<NSURLRequest: 0x7fc042d80430> { URL: http://128.199.186.47:8080/DenkoStationServer-1/denkoservice }, AFNetworkingOperationFailingURLResponseErrorKey=<NSHTTPURLResponse: 0x7fc042c34300> { URL: http://128.199.186.47:8080/DenkoStationServer-1/denkoservice } { status code: 404, headers { 
    "Cache-Control" = "must-revalidate,no-cache,no-store"; 
    "Content-Length" = 1398; 
    "Content-Type" = "text/html;charset=ISO-8859-1"; 
    Date = "Sun, 19 Jul 2015 11:24:21 GMT"; 
    Server = "Jetty(8.1.17.v20150415)"; 
} }, NSLocalizedDescription=Expected status code in (200-299), got 404} 
2015-07-19 17:54:21.993 DenkoStation[35344:1002217] E restkit.network:RKObjectRequestOperation.m:215 GET 'http://128.199.186.47:8080/DenkoStationServer-1/denkoservice' (404 Not Found/0 objects) [request=2.0702s mapping=0.0000s total=2.1423s]: Error Domain=org.restkit.RestKit.ErrorDomain Code=-1011 "Expected status code in (200-299), got 404" UserInfo=0x7fc042d8dbb0 {NSLocalizedRecoverySuggestion=<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/> 
<title>Error 404 Not Found</title> 
</head> 
<body><h2>HTTP ERROR 404</h2> 
<p>Problem accessing /DenkoStationServer-1/denkoservice. Reason: 
<pre> Not Found</pre></p><hr /><i><small>Powered by Jetty://</small></i><br/>             
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</body> 
</html> 
, NSErrorFailingURLKey=http://128.199.186.47:8080/DenkoStationServer-1/denkoservice, AFNetworkingOperationFailingURLRequestErrorKey=<NSURLRequest: 0x7fc042d80430> { URL: http://128.199.186.47:8080/DenkoStationServer-1/denkoservice }, AFNetworkingOperationFailingURLResponseErrorKey=<NSHTTPURLResponse: 0x7fc042c34300> { URL: http://128.199.186.47:8080/DenkoStationServer-1/denkoservice } { status code: 404, headers { 
    "Cache-Control" = "must-revalidate,no-cache,no-store"; 
    "Content-Length" = 1398; 
    "Content-Type" = "text/html;charset=ISO-8859-1"; 
    Date = "Sun, 19 Jul 2015 11:24:21 GMT"; 
    Server = "Jetty(8.1.17.v20150415)"; 
} }, NSLocalizedDescription=Expected status code in (200-299), got 404} 
2015-07-19 17:54:21.994 DenkoStation[35344:1002137] error: Expected status code in (200-299), got 404

它看起来像一个服务器错误，但该服务可以从其他设备调用。我在调用服务的代码中犯了什么错误？

来源

2015-07-19 Sandah Aung

变化

NSURL *baseURL = [NSURL URLWithString:@"http://128.199.186.47:8080/DenkoStationServer-1/denkoservice"];

到

NSURL *baseURL = [NSURL URLWithString:@"http://128.199.186.47:8080/DenkoStationServer-1/denkoservice/price"];

和

RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:mapping method:RKRequestMethodGET pathPattern:nil keyPath:@"price" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

到

RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:mapping method:RKRequestMethodGET pathPattern:nil keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

来源

2015-07-19 11:58:32

你的代码似乎工作。 –

状态404我这绝对不是服务器错误。例如，你应该真的去维基百科，并且阅读所有http状态代码的含义，否则你将永远失去。

对于初学者来说，这不是一个错误。这是一种状态。它没有说出了什么问题，它告诉你发生了什么事。 404意味着：找不到资源。你问了一个资源，服务器完全理解你在找什么，并且发现无论你在找什么东西都不在那里。如果数据在那里，它会发现它，但它不在那里。没有提示服务器错误。

现在显然你可能犯了一个错误，而你并没有寻找你想要的东西。这是你的错。

来源

2015-07-19 12:18:59 gnasher729

即使问题的原因未找到资源，Jetty似乎也会抛出404错误。也许这就是@Sandah Aung感到困惑的原因。 – 2015-07-19 12:36:20

ios上的RestKit 404错误

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