ios - 使用 NSJSONSerialization 解析具有多个数组的 JSON 字典不会导致 NSDictionary 或 NSArray

Question

我正在尝试以以下形式解析 JSON 字典:

{
"bible": {
    "book": [
        {
            "bookName": "Genesis",
            "chapter": [
                {
                    "chapterNum": "1",
                    "verse": [
                        {
                            "verse": "In the beginning God created the heaven and the earth.",
                            "verseNum": "1"
                        },
                        {
                            "verse": "And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.",
                            "verseNum": "2"
                        },

我在获取此结构中的正确数据时遇到困难。我的目标是创建一个 Verse 托管对象，该对象具有 verseNum、verse(文本)、chapterNum 和 bookName 属性。

我需要帮助创建对象。目前，当我使用 NSJSONSerialization 创建 NSDictionary 时，我只获得了一个字典，只有一个 NSCFString:

    NSError* err = nil;
    NSString* dataPath = [[NSBundle mainBundle] pathForResource:@"kjv"
                                                         ofType:@"json"];

    NSDictionary *bible = [NSJSONSerialization JSONObjectWithData:[NSData dataWithContentsOfFile:dataPath]
                                                          options:kNilOptions
                                                            error:&err];

    for (NSDictionary *book in [bible valueForKey:@"bible"]) {
        NSLog(@"%@", book);
    }

控制台输出只是:book

Answer 1

试试下面的代码:

NSError *error = nil;
id JSONResponse = [NSJSONSerialization JSONObjectWithData:self.responseData 
                                                  options:0 
                                                    error:&error];

if (error) {
    NSLog(@"JSON Error: %@", error);
    return;
}

// Should be an NSDictionary or NSArray
NSLog(@"JSON response: %@", [JSONResponse description]);

NSArray *books = [JSONResponse valueForKeyPath:@"bible.book"];

for (NSDictionary *book in books) {
    NSLog(@"%@", book);
    NSString *bookName = [book valueForKey:@"bookName"];
    NSArray *chapters = [book valueForKey:@"chapter"];
    // loop through the chapters
    ...
    NSArray *verses = [book valueForKey:@"verse"];
    // loop through the verses
    ...
}