iOS:一般从 NSObject 类序列化/反序列化复杂的 JSON

问题描述

有人知道如何基于 NSObject 类序列化嵌套的 JSON 吗?here 有一个关于序列化简单 JSON 的讨论，但它不是足够通用以应对复杂的嵌套 JSON.

Anyone have idea how to serialize nested JSON based on NSObject class? There is a discussion to serialize simple JSON here , but it is not generic enough to cater complex nested JSON.

想象一下这是 JSON 的结果:

Imagine this is the result of JSON:

{ "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 }
                  ]}

来自本课程:

@interface Person : NSObject{}
@property (nonatomic, strong) NSString *firstName;
@property (nonatomic, strong) NSString *lastName;
@property (nonatomic, strong) NSNumber *age;
@end

@interface Department : NSObject{}
@property (nonatomic, strong) NSMutableArray *accounting; //contain Person class
@property (nonatomic, strong) NSMutableArray *sales; //contain Person class
@end

一般如何基于类对它们进行序列化/反序列化?

How to serialize/deserialize them based on class generically?

编辑

目前我能够基于任何类生成这样的有效载荷:

Currently i'm able to generate payload like this based on any class:

NSMutableDictionary *Payload = [self serialize:objClass];

但它不适合嵌套的复杂 JSON.任何人都有更好的解决方案?这个库 C#基于对象类进行序列化/反序列化.我想基于 NSObject 重现相同的东西

But it does not cater nested complex JSON. Anyone have better solution for this? This library for C# cater serialize/deserialze based on object class. I want to reproduce something the same based on NSObject

推荐答案

最后我们可以使用 JSONModel 轻松解决这个问题.这是目前最好的方法.JSONModel 是一个基于 Class 对您的对象进行一般序列化/反序列化的库.您甚至可以使用基于非 nsobject 的属性，例如 int、short 和 float.它还可以满足嵌套复杂的 JSON.

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.

1) 反序列化示例.参考上面的例子，在头文件中:

1) Deserialize example. By referring to above 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

在实现文件中:

#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) 序列化示例.在实现文件中:

#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]);

这是来自序列化示例的 NSLog 结果:

And this is NSLog result from Serialize example:

{ "accounting" : [{ "firstName" : "Uee",  
                    "lastName"  : "Bae",
                    "age"       : 22 }
                 ],                            
  "sales"      : [{ "firstName" : "Sara", 
                    "lastName"  : "Jung",
                    "age"       : 20 }
                  ]}

这篇关于iOS:一般从 NSObject 类序列化/反序列化复杂的 JSON的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！