Persons.json文件
[ { "name": "Chris", "age": 18, "city": "Shanghai", "job": "iOS" }, { "name": "Ada", "age": 16, "city": "Beijing", "job": "student" }, { "name": "Rita", "age": 17, "city": "Xiamen", "job": "HR" } ]
Model.h类
1 #import <Foundation/Foundation.h> 2 3 @interface PersonModel : NSObject 4 5 @property (nonatomic, copy) NSString *name; 6 @property (nonatomic, assign) NSInteger age; 7 @property (nonatomic, copy) NSString *city; 8 @property (nonatomic, copy) NSString *job; 9 @property (nonatomic, copy) NSString *sex; 10 11 - (instancetype)initWithNSDictionary:(NSDictionary *)dict; 12 13 @end
Model.m类
1 #import "PersonModel.h" 2 #import <objc/runtime.h> 3 4 @implementation PersonModel 5 6 - (instancetype)initWithNSDictionary:(NSDictionary *)dict { 7 self = [super init]; 8 if (self) { 9 [self prepareModel:dict]; 10 } 11 return self; 12 } 13 14 - (void)prepareModel:(NSDictionary *)dict { 15 NSMutableArray *keys = [[NSMutableArray alloc] init]; 16 17 u_int count = 0; 18 objc_property_t *properties = class_copyPropertyList([self class], &count); 19 for (int i = 0; i < count; i++) { 20 objc_property_t property = properties[i]; 21 const char *propertyCString = property_getName(property); 22 NSString *propertyName = [NSString stringWithCString:propertyCString encoding:NSUTF8StringEncoding]; 23 [keys addObject:propertyName]; 24 } 25 free(properties); 26 27 for (NSString *key in keys) { 28 if ([dict valueForKey:key]) { 29 [self setValue:[dict valueForKey:key] forKey:key]; 30 } 31 } 32 } 33 34 @end
调用
1 NSString *file = [[NSBundle mainBundle] pathForResource:@"Persons" ofType:@"json"]; 2 NSData *data = [NSData dataWithContentsOfFile:file]; 3 NSMutableArray *array = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; 4 5 for (NSDictionary *model in array) { 6 PersonModel *person = [[PersonModel alloc] initWithNSDictionary:model]; 7 NSLog(@"%@, %ld, %@, %@", person.name, (long)person.age, person.city, person.job); 8 }
打印结果: