json解析

#import <Foundation/Foundation.h>

@interface BRGroupModel : NSObject

/** 分组ID */

@property (nonatomic,copy) NSString *groupId;

/** 分组名称 */

@property (nonatomic,copy) NSString *groupName;

/** 分组类型(1表示未分组, 2表示自定义分组) */

@property (nonatomic,assign) NSInteger groupType;

/** 成员个数(患者个数) */

@property (nonatomic,assign) NSInteger memberNum;

/** 分组下的好友列表 */

@property (nonatomic,strong) NSArray *contacts;

@end

#import "BRGroupModel.h"

#import <MJExtension.h>

#import "BRContactsModel.h"

@implementation BRGroupModel

#pragma mark - 驼峰属性转成下划线key去字典中取值

+ (id)mj_replacedKeyFromPropertyName121:(NSString *)propertyName {

    return [propertyNamemj_underlineFromCamel];

}

#pragma mark - 属性为数组类型时，要指定数组元素对应的模型类(解析类)

+ (NSDictionary *)mj_objectClassInArray {

    return@{@"contacts": [BRContactsModelclass]};

}

model2

#import <Foundation/Foundation.h>

@interface BRContactsModel : NSObject

/** 用户ID */

@property (nonatomic,copy) NSString *ID;

/** 头像 */

@property (nonatomic,copy) NSString *headImg;

/** 姓名 */

@property (nonatomic,copy) NSString *name;

/** 描述 */

@property (nonatomic,copy) NSString *desc;

/** 活动时间(表示与该联系人的最后交流时间) */

@property (nonatomic,copy) NSString *activeTime;

@end

#import "BRContactsModel.h"

#import <MJExtension.h>

@implementation BRContactsModel

#pragma mark - 将属性名换为其他key去字典中取值（避免属性名为系统关键字）

+ (NSDictionary *)mj_replacedKeyFromPropertyName {

    return@{

                @"ID" :@"id",

                @"desc" :@"description"

            };

}

#pragma mark - 驼峰属性转成下划线key去字典中取值

+ (id)mj_replacedKeyFromPropertyName121:(NSString *)propertyName {

    return [propertyNamemj_underlineFromCamel];

}

@end