Swift Object Encodable

对对象类型进行encod

extension Encodable {
    func asDictionary() throws -> [String:Any] {
        let data = try JSONEncoder().encode(self)
        guard let dictionary = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as? [String:Any] else {
            throw NSError()
        }
        return dictionary
    }
}

其他类遵循Encodable协议使用asDictionary()方法即可实现将对象进行encode。