Question

我试图解析这样的json，其中使用了很多数组和对象如何解析它。

[
    {
        "MusicData": [
            {
                "user_music_id": "199",
                "music_id": "2",
                "music_name": "Country"
            },
            {
                "user_music_id": "200",
                "music_id": "2",
                "music_name": "Country"
            }
        ]
    },
    {
        "SportData": [
            {
                "user_sport_id": "179",
                "sport_id": "4",
                "sport_name": "Hockey"
            }
        ]
    },
    {
        "HobbyData": []
    },
    {
        "RelationData": []
    },
    {
        "MovieData": [
            {
                "user_movie_id": "144",
                "movie_id": "6",
                "movie_name": "Drama"
            }
        ]
    },
    {
        "BookData": []
    },
    {
        "CarrerData": [
            {
                "user_carrer_id": "186",
                "carrer_id": "7",
                "carrer_name": "Marketing"
            },
            {
                "user_carrer_id": "187",
                "carrer_id": "8",
                "carrer_name": "Sales"
            }
        ]
    }
]

MyMusic是一个字典，它有一个有很多索引的数组。

如何逐个解析其数据？使用标签MyMusic，SportData等。

我试图使用以下代码从这个json解析CarrerData：

musicTemp._id = [NSString stringWithFormat:@"%@",[[[responseDict objectAtIndex:0] valueForKey:@"MusicData"] valueForKey:@"user_music_id"]];

Answer 1

您似乎正在跳过一个数组，请尝试：

musicTemp._id = [NSString stringWithFormat:@"%@",[[[[responseDict objectAtIndex:0] valueForKey:@"MusicData"] objectAtIndex:0] valueForKey:@"user_music_id"]];`

“{}”代表字典
“[]”表示数组

所以迭代你可以做的对象：

 NSArray* array=[[responseDict objectAtIndex:0] valueForKey:@"MusicData"]; 
   for (NSDictionary *dict in array) {
        NSString *userMusicID=[dict objectForKey:@"user_music_id"];
        NSString *musicID=[dict objectForKey:@"music_id"];
        //etc 
    }

您可以对其他元素执行相同的操作。

在ios中解析嵌套对象和Array json

1 个答案: