Finally we can solve this problem easily using JSONModel. This is the best method so far. JSONModel is a library that generically serialize/deserialize your object based on Class. You can even use non-nsobject based for property like int, short and float. It can also cater nested-complex JSON.
Considering this JSON example:
{ "accounting" : [{ "firstName" : "John",
"lastName" : "Doe",
"age" : 23 },
{ "firstName" : "Mary",
"lastName" : "Smith",
"age" : 32 }
],
"sales" : [{ "firstName" : "Sally",
"lastName" : "Green",
"age" : 27 },
{ "firstName" : "Jim",
"lastName" : "Galley",
"age" : 41 }
]}
1) Deserialize example. in header file:
#import "JSONModel.h"
@interface Person : JSONModel
@property (nonatomic, strong) NSString *firstName;
@property (nonatomic, strong) NSString *lastName;
@property (nonatomic, strong) NSNumber *age;
@end
@protocol Person;
@interface Department : JSONModel
@property (nonatomic, strong) NSMutableArray<Person> *accounting;
@property (nonatomic, strong) NSMutableArray<Person> *sales;
@end
in implementation file:
#import "JSONModelLib.h"
#import "myJSONClass.h"
NSString *responseJSON = /*from example*/;
Department *department = [[Department alloc] initWithString:responseJSON error:&err];
if (!err)
{
for (Person *person in department.accounting) {
NSLog(@"%@", person.firstName);
NSLog(@"%@", person.lastName);
NSLog(@"%@", person.age);
}
for (Person *person in department.sales) {
NSLog(@"%@", person.firstName);
NSLog(@"%@", person.lastName);
NSLog(@"%@", person.age);
}
}
2) Serialize Example. In implementation file:
#import "JSONModelLib.h"
#import "myJSONClass.h"
Department *department = [[Department alloc] init];
Person *personAcc1 = [[Person alloc] init];
personAcc1.firstName = @"Uee";
personAcc1.lastName = @"Bae";
personAcc1.age = [NSNumber numberWithInt:22];
[department.accounting addOject:personAcc1];
Person *personSales1 = [[Person alloc] init];
personSales1.firstName = @"Sara";
personSales1.lastName = @"Jung";
personSales1.age = [NSNumber numberWithInt:20];
[department.sales addOject:personSales1];
NSLog(@"%@", [department toJSONString]);
And this is NSLog result from Serialize example:
{ "accounting" : [{ "firstName" : "Uee",
"lastName" : "Bae",
"age" : 22 }
],
"sales" : [{ "firstName" : "Sara",
"lastName" : "Jung",
"age" : 20 }
]}
