ios - NSJSONSerialization 崩溃的应用程序

Question

我有一本字典，当我登录时它会显示...

{
    Date = "2013-04-30 17:17:18 +0000";
    Description = Kb;
    EventID = "92193e58-c04a-4233-9a6c-1332bc056b20";
    Title = Keyboard;
}

我正在尝试将其转换为 NSData 以用于像这样的 JSON Web 服务...

- (NSData *)JSONRepresentation
{
    NSDictionary *dictionary = [self dictionaryObject];

    NSError *jsonError;

    NSData *JSONData = [NSJSONSerialization dataWithJSONObject:dictionary
                                                       options:0
                                                         error:&jsonError];  //This is where the error occurs.

    return JSONData;
}

但每次我运行它时，应用程序都会崩溃。

字典的格式正确，应用程序只是在这一行崩溃。

在 AppCode 中我得到崩溃报告...

EXC_BREAKPOINT (code=EXC_ARM_BREAKPOINT, subcode=0xdefe))

在 Xcode 中，应用程序刚刚停止，如果我尝试继续它会停止并出现错误...

EXC_BAD_ACCESS (code=1, address=0x0)

Answer 1

您的键是转换为 JSON 的无效对象。 From the docs :

An object that may be converted to JSON must have the following properties:

The top level object is an NSArray or NSDictionary. All objects are instances of NSString, NSNumber, NSArray, NSDictionary, or NSNull. All dictionary keys are instances of NSString. Numbers are not NaN or infinity.