4
뉴스 항목을 제공하는 웹 서비스와 통신하기 위해 RestKit을 사용하려고합니다. 나는 내가 다음과 같은 로그 출력keyPath에 대한 객체 매핑을 찾을 수 없습니다 : ''
2011-10-10 15:57:40.807 App[94979:207] Retrieved JSON: {"news_posts":[{"title":"test title","body":"test body","image":"/uploads/post/image/1/app_iPhone.png","date":"10/10 2011"}]}
2011-10-10 15:57:40.808 App[94979:7507] W restkit.object_mapping:RKObjectMapper.m:74 Adding mapping error: Could not find an object mapping for keyPath: ''
2011-10-10 15:57:40.809 App[94979:7507] E restkit.network:RKObjectLoader.m:190 Encountered errors during mapping: Could not find an object mapping for keyPath: ''
2011-10-10 15:57:40.809 App[94979:7507] Ett problem uppstod vid hämtning av nyheter
그러나 그것은 나에게 많은 이해가되지 않습니다를 얻을이 코드
//
// NewsViewController_iPhone.m
#import "NewsViewController_iPhone.h"
#import <RestKit/RestKit.h>
#import <RestKit/CoreData/CoreData.h>
#import "NewsPost.h"
@implementation NewsViewController_iPhone
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
RKObjectManager* manager = [RKObjectManager objectManagerWithBaseURL:@"http://192.168.0.197:3000"];
RKObjectMapping* newsPostMapping = [RKObjectMapping mappingForClass:[NewsPost class]];
[newsPostMapping mapKeyPath:@"title" toAttribute:@"title"];
[newsPostMapping mapKeyPath:@"body" toAttribute:@"body"];
[newsPostMapping mapKeyPath:@"image" toAttribute:@"image"];
[newsPostMapping mapKeyPath:@"date" toAttribute:@"date"];
[manager.mappingProvider setMapping:newsPostMapping forKeyPath:@"news_items"];
[manager loadObjectsAtResourcePath:@"/news.json"delegate:self];
}
return self;
}
- (void)dealloc
{
[super dealloc];
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (void)objectLoader:(RKObjectLoader *)objectLoader didFailWithError:(NSError *)error
{
NSString *stringError = @"Ett problem uppstod vid hämtning av nyheter";
NSLog(stringError);
/*UIAlertView *alert = [[UIAlertView alloc] initWithTitle:stringError];
[alert show];
[alert release];*/
}
- (void)request:(RKRequest*)request didLoadResponse:
(RKResponse*)response {
if ([request isGET]) {
if ([response isOK]) {
NSLog(@"Retrieved JSON: %@", [response bodyAsString]);
}
} else if ([request isPOST]) {
if ([response isJSON]) {
NSLog(@"Got a JSON response back from our POST!");
}
}
}
- (void)objectLoader:(RKObjectLoader *)objectLoader didLoadObjects:(NSArray *)objects
{
NSLog(@"%@", objects);
}
에게 서면에 문서의 this piece을 공부하고 기반으로했습니다. 문제가 무엇인지 알 수 있습니까?
이것은 매우 당황 스럽습니다. 정말 고맙습니다. 문자열의 수정 내 문제를 해결. –