C# 对象与JSON字符串互相转换的几种方式

淩亂°似流年 2022-02-18 07:56 388阅读 0赞

# [C\# 对象与JSON字符串互相转换的几种方式][C_ _JSON] #

出自：http://blog.csdn.net/testcs\_dn/article/details/78150046?locationNum=6&fps=1

目录[(?)][Link 1][\[-\]][Link 1]

1.  [方法一DoNet20 需要借助于NewtonsoftJsondll][DoNet20 _NewtonsoftJsondll]
2.  [方法二DataContractJsonSerializer][DataContractJsonSerializer]
3.  [方法三JavaScriptSerializer][JavaScriptSerializer]
4.  [功能对比][Link 2]
5.  [性能对比][Link 3]
    
    1.  [JSON转C实体类][JSON_C]
6.  [相关参考][Link 4]
7.  [c json数据解析将字符串json格式数据转换成对象][c json_json]
8.  [Jsonnet实现方便的Json转Cdynamic动态类型对象][Jsonnet_Json_Cdynamic]
9.  [C JSON和对象之间互相转换][C JSON]
    
    1.  [C 对象与JSON串互相转换][C _JSON]

随着 Rest 风格 API 的应用越来越广泛，对象与JSON字符串互相转换的功能也用的越来越多。这里介绍三种方法，期中两种为DotNet Framework .NET 3.5 及后续版本自带的 DataContractJsonSerializer、 JavaScriptSerializer，另一种为 [Newtonsoft.Json.dll][] ，我选择它的原因是因为它支持 DotNet Framework .NET 2.0。

# 方法一、DoNet2.0 需要借助于[Newtonsoft.Json.dll][] #

我使用的版本是：Version 10.0.3

**\[csharp\]**  [view plain][Link 1]   [copy][Link 1]

// 从一个对象信息生成Json串
            public static string ObjectToJson(object obj)
            {
                return JsonConvert.SerializeObject(obj);
            }
            // 从一个Json串生成对象信息
            public static object JsonToObject(string jsonString, object obj)
            {
                return JsonConvert.DeserializeObject(jsonString, obj.GetType());
            }

# 方法二、DataContractJsonSerializer #

**\[csharp\]**  [view plain][Link 1]   [copy][Link 1]

/// <summary>
            /// Json转换成对象
            /// </summary>
            /// <typeparam name="T"></typeparam>
            /// <param name="jsonText"></param>
            /// <returns></returns>
            public static T JsonToObject<T>(string jsonText)
            {
                // Framework 2.0 不支持
                DataContractJsonSerializer s = new DataContractJsonSerializer(typeof(T));
                MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonText));
                T obj = (T)s.ReadObject(ms);
                ms.Dispose();
                return obj;
    
    
            }
    
    
            /// <summary>
            /// 对象转换成JSON
            /// </summary>
            /// <typeparam name="T"></typeparam>
            /// <param name="obj"></param>
            /// <returns></returns>
            public static string ObjectToJSON<T>(T obj)
            {
                // Framework 2.0 不支持
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
                string result = string.Empty;
                using (MemoryStream ms = new MemoryStream())
                {
                    serializer.WriteObject(ms, obj);
                    ms.Position = 0;
    
                    using (StreamReader read = new StreamReader(ms))
                    {
                        result = read.ReadToEnd();
                    }
                }
                return result;
            }

**\[csharp\]**  [view plain][Link 1]   [copy][Link 1]

# 方法三、JavaScriptSerializer #

**\[csharp\]**  [view plain][Link 1]   [copy][Link 1]

public static void JsonMy(string json)
            {              　　　　　　 
                JavaScriptSerializer js = new JavaScriptSerializer();   //实例化一个能够序列化数据的类
                ToJsonMy list = js.Deserialize<ToJsonMy>(json);    //将json数据转化为对象类型并赋值给list
                string result = list.result;
                string res_info = list.res_info;
                string queryorder_info = list.res_info;
            }
    
            public static void JsonMy4(string json)
            {
                JavaScriptSerializer js = new JavaScriptSerializer();   //实例化一个能够序列化数据的类
                ToJsonMy3 list = js.Deserialize<ToJsonMy3>(json);    //将json数据转化为对象类型并赋值给list
                string result = list.result;
                string res_info = list.res_info;
                string order_num = list.queryorder_info.order_num;
                List<orderdetail> orderdetail = list.queryorder_info.orderdetail;
                string CFTUin = orderdetail[0].CFTUin;
                string HotelName = orderdetail[0].HotelName;
                string ListID = orderdetail[1].ListID;
                string State = orderdetail[2].State;
            }

posted @ 2018-01-30 17:33 [波霸38][38] 阅读( ...) 评论( ...) [编辑][Link 5] 收藏

[C_ _JSON]: https://www.cnblogs.com/sharing1986687846/p/8386231.html
[Link 1]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#
[DoNet20 _NewtonsoftJsondll]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t0
[DataContractJsonSerializer]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t1
[JavaScriptSerializer]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t2
[Link 2]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t3
[Link 3]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t4
[JSON_C]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t5
[Link 4]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t6
[c json_json]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t7
[Jsonnet_Json_Cdynamic]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t8
[C JSON]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t9
[C _JSON]: http://blog.csdn.net/testcs_dn/article/details/78150046?locationNum=6&fps=1#t10
[Newtonsoft.Json.dll]: https://www.newtonsoft.com/json
[38]: https://www.cnblogs.com/sharing1986687846/
[Link 5]: https://i.cnblogs.com/EditPosts.aspx?postid=8386231