C#指定获取Json对象里的指定值 .net framework mvc示例

C#中C#指定获取Json对象里的指定值

https://www.cnblogs.com/sky6699/p/6889762.html

 获取的json数据类型样式

{
    "status": 0,
    "msg": "",
    "data": [
        {
            "id": "63802f4ca7e2fb779a1c3734",
            "pid": "63773f07d8a85aba9b539f2a",
            "name": "高三12月听力试音材料.mp3",
            "type": "audio",
            "size": 39650244,
            "create_time": 1669345100,
            "sample_rate": 44100,
            "duration": 1239.070125,
            "bit_rate": 256000,
            "title": "�����ۺ����������⣨һ��",
            "artist": "09",
            "album": "",
            "track": 0,
            "channels": 2,
            "genre": "Blues"
        },
        {
            "id": "63802ddba7e2fb779a1c36f6",
            "pid": "63773f07d8a85aba9b539f2a",
            "name": "gaosan.mp3",
            "type": "audio",
            "size": 39650244,
            "create_time": 1669344731,
            "sample_rate": 44100,
            "duration": 1239.070125,
            "bit_rate": 256000,
            "title": "�����ۺ����������⣨һ��",
            "artist": "09",
            "album": "",
            "track": 0,
            "channels": 2,
            "genre": "Blues"
        },
        {
            "id": "63802d06a7e2fb779a1c36cd",
            "pid": "63773f07d8a85aba9b539f2a",
            "name": "李常超（Lao乾妈） - 一身孤注掷温柔.mp3",
            "type": "audio",
            "size": 3357427,
            "create_time": 1669344518,
            "sample_rate": 44100,
            "duration": 206.889796,
            "bit_rate": 129824,
            "title": "一身孤注掷温柔",
            "artist": "李常超（Lao乾妈）",
            "album": "一身孤注掷温柔",
            "track": 1,
            "channels": 2,
            "genre": "Blues"
        },
        {
            "id": "63802cf4a7e2fb779a1c36c1",
            "pid": "63773f07d8a85aba9b539f2a",
            "name": "汪峰 - 信仰在空中飘扬.mp3",
            "type": "audio",
            "size": 7059084,
            "create_time": 1669344500,
            "sample_rate": 44100,
            "duration": 438.465306,
            "bit_rate": 128796,
            "title": "信仰在空中飘扬",
            "artist": "汪峰",
            "album": "信仰在空中飘扬",
            "track": 13,
            "channels": 2,
            "genre": "Blues"
        },
        {
            "id": "638027b4d54830242ab7d6c0",
            "pid": "63773f07d8a85aba9b539f2a",
            "name": "汪峰11 - 信仰在空中飘扬 - 副本.mp3",
            "type": "audio",
            "size": 7059084,
            "create_time": 1669343156,
            "sample_rate": 44100,
            "duration": 438.465306,
            "bit_rate": 128796,
            "title": "信仰在空中飘扬",
            "artist": "汪峰",
            "album": "信仰在空中飘扬",
            "track": 13,
            "channels": 2,
            "genre": "Blues"
        }
    ]
}

 获取的json数据中data中的指定数据

   //获取json指定数据参数
    public class getJsonVal
    {
        /// <summary>
        /// T::Json字符串数据::0:0:*:1
        /// </summary>
        public string Jsonstr { get; set; }  
        public string search1{ get; set; }  //条件字段参数1
        public string search2 { get; set; } //条件字段参数2
        public string getsearch1 { get; set; }//取值字段参数1
        public string getsearch2 { get; set; }//取值字段参数2
        public string searchval1 { get; set; }//条件值1
        public string searchval2 { get; set; }//条件值2
    }

       /// 获取一个json的指定属性值
        /// </summary>
        /// <param name="info">json字符串</param>
        /// <param name="info1">获取json指定属性值 譬如:取出其中的id</param>
        /// <param name="info2">获取json指定属性值 譬如:取出其中的name</param>
        /// <param name="val1">返回数据1</param>
        /// <param name="val2">返回数据2</param>
        public static void GetPropertyValue(getJsonVal f, out string returnval1,out string returnval2)
        {
            JObject obj = Newtonsoft.Json.Linq.JObject.Parse(f.Jsonstr);
            var jsobj = obj["data"];
            returnval1 = "";
            returnval2 = "";
            if (!string.IsNullOrEmpty(jsobj.ToString()))
            {
                for (var i = 0; i < jsobj.Count(); i++)
                {
                    if (!string.IsNullOrEmpty(f.search1) && !string.IsNullOrEmpty(f.search2))
                    {
                        if (jsobj[i][f.search1].ToString() == f.searchval1 && jsobj[i][f.search2].ToString() == f.searchval2)
                        {
                            if (!string.IsNullOrEmpty(f.getsearch1) && !string.IsNullOrEmpty(f.getsearch2))
                            {
                                returnval1 = jsobj[i][f.getsearch1].ToString();
                                returnval2 = jsobj[i][f.getsearch2].ToString();
                                break;
                            }
                            if (!string.IsNullOrEmpty(f.getsearch1))
                            {
                                returnval1 = jsobj[i][f.getsearch1].ToString();
                                break;
                            }
                            if (!string.IsNullOrEmpty(f.getsearch2))
                            {
                                returnval2 = jsobj[i][f.getsearch2].ToString();
                                break;
                            }
                        }
                        continue;
                    }
                    if (!string.IsNullOrEmpty(f.search1))
                    {
                        if (jsobj[i][f.search1].ToString() == f.searchval1)
                        {
                            returnval1 = jsobj[i][f.getsearch1].ToString();
                            break;
                        }
                        continue;
                    }
                    if (!string.IsNullOrEmpty(f.search2))
                    {
                        if (jsobj[i][f.search2].ToString() == f.searchval2)
                        {
                            returnval2 = jsobj[i][f.getsearch2].ToString();
                            break;
                        }
                        continue;
                    }
                }
            }       
        }

方法使用  --用pid和name做条件，查询获取json串中满足这两个条件的数据id（如果还要获取name，name加一个getsearch2="name"）

　　　　　　　　out返回要的数据(当前方法限定两个，多个的话可自定义加)