内容

• 字典转字符串 Dictionary To String
• 字符串转字典 String To Dictionary

字典转字符串 Dictionary To String

工具类：

// MARK: 字典转字符串
   func dicValueString(_ dic:[String : Any]) -> String?{
        let data = try? JSONSerialization.data(withJSONObject: dic, options: [])
        let str = String(data: data!, encoding: String.Encoding.utf8)
        return str
    }

或者做成扩展：

// MARK: 字典转字符串
extension Dictionary {
    
    func toJsonString() -> String? {
        guard let data = try? JSONSerialization.data(withJSONObject: self,
                                                     options: []) else {
            return nil
        }
        guard let str = String(data: data, encoding: .utf8) else {
            return nil
        }
        return str
     }
    
}

字符串转字典 String To Dictionary

工具类

// MARK: 字符串转字典
func stringValueDic(_ str: String) -> [String : Any]?{
    let data = str.data(using: String.Encoding.utf8)
    if let dict = try? JSONSerialization.jsonObject(with: data!,
                    options: .mutableContainers) as? [String : Any] {
        return dict
    }

    return nil
}

或者做成扩展

// MARK: 字符串转字典
extension String {
    
    func toDictionary() -> [String : Any] {
        
        var result = [String : Any]()
        guard !self.isEmpty else { return result }
        
        guard let dataSelf = self.data(using: .utf8) else {
            return result
        }
        
        if let dic = try? JSONSerialization.jsonObject(with: dataSelf,
                           options: .mutableContainers) as? [String : Any] {
            result = dic
        }
        return result
    
    }
    
}