[英]IOS/Objective-C: Error Converting JSON to Object
I am trying to convert JSON array to object for display in table.我正在尝试将 JSON 数组转换为对象以在表中显示。 I am able to capture JSON.我能够捕获 JSON。 However, when I try to turn into object, I get error shown below.但是,当我尝试变成对象时,出现如下所示的错误。 There is definitely a property named "name" in object class.对象类中肯定有一个名为“name”的属性。
- (void)fetchedData:(NSData *)responseData {
NSError* error;
NSDictionary* json = [NSJSONSerialization JSONObjectWithData:responseData
options:kNilOptions
error:&error];
NSMutableArray* latestItems = nil;
latestItems = [[NSMutableArray alloc] init];
latestItems = [json objectForKey:@"items"];
[self.tableView reloadData];
for (int i = 0; i < latestItems.count; i++)
{
NSDictionary *itemElement = latestItems[i];
// Create a new l object and set its props to todoElement properties
IDItemFromServer *newItem = [[IDItemFromServer alloc] init];
//ERROR NEXT LINE THROWS FOLLOWING ERROR
//'NSUnknownKeyException', reason: '[<IDItemFromServer 0x14e88010> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key name.'
[newItem setValue:@"hi" forKey:@"name"];
[newItem setValue:itemElement[@"address"] forKey:@"address"];
// Add this new item to the array
[latestItems addObject:newItem];
}
Would appreciate any suggestions on how to fix error.将不胜感激有关如何修复错误的任何建议。
Edit:编辑:
//Object.h file
#import <Foundation/Foundation.h>
#import <CoreData/CoreData.h>
@interface IDItemFromServer : NSObject
@property (nonatomic, retain) NSNumber * iid;
@property (nonatomic, retain) NSString * name;
@property (nonatomic, retain) NSString * address;
@end
It says IDItemFromServer has no property name .它说IDItemFromServer没有属性name 。 add the name,address property like bellow code添加名称,地址属性,如波纹管代码
In IDItemFromServer.h file
#import <Foundation/Foundation.h>
@interface IDItemFromServer : NSObject
@property(nonatomic,strong) NSString name;
@property(nonatomic,strong) NSString address;
@end
In IDItemFromServer.m file在 IDItemFromServer.m 文件中
#import "IDItemFromServer.h"
@implementation IDItemFromServer
@synthesize name;
@synthesize address;
@end
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