Question

我有以下JSON文本如下。我想将它合并到我的应用程序中，并且能够将其中的一部分分配给要使用的变量。很简单，我知道，但我无法弄清楚如何去做。

[{"id":"1","category":"1","fact":"Worldwide, around 1.2 trillion eggs are produced for eating every year, which means that average person on Earth consumes 173 eggs a year."},{"id":"3","category":"2","fact":"How to tell if you're going to throw up? -Your mouth starts to fill with saliva which is there to protect your mouth and teeth from the stomach acid mixed with the vomit."},{"id":"2","category":"2","fact":"Bone cells are constantly renew so every ten years you have a new skeleton."}]

Answer 1

您的文字看起来像一个数组。所以试试这样： -

NSError *err = nil;
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error: &err];

Answer 2

如果您的json文本是NSString，则需要将其转换为NSData，所以：

    NSString* jsonText = @"[{"id":"1","category":"1","fact":"Worldwide, around 1.2 trillion eggs are produced for eating every year, which means that average person on Earth consumes 173 eggs a year."},{"id":"3","category":"2","fact":"How to tell if you're going to throw up? -Your mouth starts to fill with saliva which is there to protect your mouth and teeth from the stomach acid mixed with the vomit."},{"id":"2","category":"2","fact":"Bone cells are constantly renew so every ten years you have a new skeleton."}]";
    NSData* data = [jsonText dataUsingEncoding:NSUTF8StringEncoding];

    NSError* error;
    NSDictionary* jsonDict = [NSJSONSerialization 
    JSONObjectWithData:responseData
    options:kNilOptions 
    error:&error];

现在您可以像字典一样访问元素。希望这会对你有所帮助。

如何在我的应用程序中使用此JSON文本？

2 个答案: