RestKit：serializedObjectForMIMEType 失败并出现错误

Question

我正在尝试使用 RestKit 从我的自定义对象中获取 JSON 格式字符串。

这是我的代码：

@interface MyPhoneModel : NSObject

@property (nonatomic, copy) NSString *number;
@property (nonatomic, copy) NSString *tag;

@end

@interface MyContactModel : NSObject

@property (nonatomic, copy) NSString *name;
@property (nonatomic, copy) NSArray *phoneList;

@end

- (NSString *)jsonString:(MyContactModel *)contact
{
    RKObjectMapping *phoneMapping = [RKObjectMapping mappingForClass:[MyPhoneModel class]];
    [phoneMapping mapKeyPath:@"number" toAttribute:@"number"];
    [phoneMapping mapKeyPath:@"tag" toAttribute:@"tag"];

    RKObjectMapping *contactMapping = [RKObjectMapping mappingForClass:[MyContactModel class]];
    [contactMapping mapKeyPath:@"name" toAttribute:@"name"];
    [contactMapping mapKeyPath:@"phoneList" toRelationship:@"phoneList" withMapping:phoneMapping];

    NSError *error = nil;
    NSString *json = [[RKObjectSerializer serializerWithObject:contact mapping:contactMapping] serializedObjectForMIMEType:RKMIMETypeJSON error:&error];
    return json;
}

但是当我调用这个方法时，它失败并出现错误。 错误域=JKErrorDomain代码=-1“无法序列化对象类MyPhoneModel。” UserInfo=0x898c400 {NSLocalizedDescription=无法序列化对象类MyPhoneModel。

那么，如何解决这个问题呢？

Answer 1

我找到了这个链接：
使用示例

在每个示例中我都可以找到映射是用 [NSDictionary class] 或 [NSMutableDictionary class] 完成的

所以也许是这样的：

RKObjectMapping* phoneMapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class] ];
[phoneMapping  mapAttributes:@"number", @"tag", nil];

 RKObjectMapping *contactMapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[contactMapping mapKeyPath:@"name" toAttribute:@"name"];
[contactMapping mapKeyPath:@"phoneList" toRelationship:@"phoneList" withMapping:phoneMapping];

您想要这个序列化字符串与 RKClient 一起使用吗？