Newtonsoft.Json 复杂结构类型的取值

由于项目中需要取网页上的数据，但是数据时JSON格式的，于是听同事介绍了一个Newtonsoft.Json.dll文件

具体操作如下：

我的字符串类型为：

string str = "{ 'root':{ 'items': [{'Warehouse': '219410','City_St': 'Morrow,GA','Bales': '264'},{'Warehouse': '240124','City_St': 'climax,'Bales': '88'},{'Warehouse': '266405','City_St': 'Funston,'Bales': '176'},{'Warehouse': '297005','City_St': 'Meigs,{'Warehouse': '710527','City_St': 'Greenville,SC','Bales': '440'}] }} " ;

需要循环取出Warehouse的值，这里我们使用了类构造函数

先定义所需要的类类型

publicclassMyList

{

Warehouse { get ; set ; }

City_St { ; }

}

Items

{

public IList<MyList> items { ; }

}

Root

{

Items root { ; }

}

然后就可以使用DecodeObject对象转换了

        string str = "{ 'root':{ 'items': [{'Warehouse': '219410','Bales': '440'}] }} ";
        Root T = Utility.JsonUtility.DecodeObject<Root>(str);
        for (int i = 0; i < T.root.items.Count; i++)
        {
            Response.Write(T.root.items[i].Warehouse+\n);
        }

输出结果如下图

完整代码如下:

 1 using System;
 2  System.Collections.Generic;
 3  System.Linq;
 4  System.Web;
 5  System.Web.UI;
 6  System.Web.UI.WebControls;
 7  Newtonsoft.Json;
 8  Newtonsoft.Json.Converters;
 9  System.IO;
10 
11 public partial class _Default : System.Web.UI.Page
12 {
13     protected void Page_Load(object sender,EventArgs e)
14     {
15         ;
16         Root T = Utility.JsonUtility.DecodeObject<Root>(str);
17         )
18         {
19             Response.Write(T.root.items[i].Warehouse+);
20         }
21     }
22 
23      MyList
24 25         string Warehouse { get; set; }
26         string City_St { 27 28      Items
29 30         public IList<MyList> items { 31 32      Root
33 34         public Items root { 35 36 
37     private static string StringFormat(string str,Type type)
38 39         if (type == typeof())
40 41             str = String2Json(str);
42             str = \"" + str + 43 44         else typeof(DateTime))
45 46             str = 47 48         bool49 50             str = str.ToLower();
51 52         return str;
53     } 
54 
55 }

注：项目中的Newtonsoft是有3个版本的.NET2.0 、3.5、 4.0 要引用对应的版本才能找到名称空间；

Utility.cs完整代码如下:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260

using System; System.Collections.Generic; System.Linq; System.Text; Newtonsoft.Json.Converters; Newtonsoft.Json; System.IO; /// <summary> ///JsonUtility 的摘要说明 /// </summary> Utility { /// <summary> /// Json工具类 /// </summary> static JsonUtility { /// <summary> /// 添加时间转换器 /// </summary> /// <param name="serializer"></param> private void AddisoDateTimeConverter(JsonSerializer serializer) { IsoDateTimeConverter idtc = new IsoDateTimeConverter(); //定义时间转化格式 idtc.DateTimeFormat = "yyyy-MM-dd HH:mm:ss" ; //idtc.DateTimeFormat = "yyyy-MM-dd"; serializer.Converters.Add(idtc); } /// <summary> /// Json转换配置 /// </summary> /// <param name="serializer"></param> SerializerSetting(JsonSerializer serializer) { serializer.ReferenceLoopHandling = ReferenceLoopHandling.Ignore; //serializer.NullValueHandling = NullValueHandling.Ignore; //serializer.MissingMemberHandling = MissingMemberHandling.Ignore; //serializer.DefaultValueHandling = DefaultValueHandling.Ignore; } /// <summary> /// 返回结果消息编码 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="sucess"></param> /// <param name="message"></param> /// <param name="exMessage"></param> /// <param name="data"></param> /// <returns></returns> ReturnMessage( bool sucess, int total,monospace!important; min-height:inherit!important">message,monospace!important; min-height:inherit!important">exMessage,monospace!important; min-height:inherit!important">data) { message = message.Replace( "'" , "" ).Replace( "\"" "<" ">" ); exMessage = exMessage.Replace( ); return .Format( "{{success:{0},total:{1},data:{2},message:\"{3}\",exMessage:\"{4}\"}}" ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.8em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas, sucess.ToString().ToLower(),total,data,message,exMessage); } /// <summary> /// 返回失败信息 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="message"></param> /// <param name="exMessage"></param> /// <returns></returns> ReturnFailureMessage( exMessage) { return false "[]" ); } /// <summary> /// 返回失败信息 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="message"></param> /// <param name="exMessage"></param> /// <returns></returns> ReturnFailureMessagetouch( exMessage) { return "{\"success\":\"false\",\"msg\":\"" + exMessage + "\"}" ; } /// <summary> /// 返回成功信息 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="total"></param> /// <param name="message"></param> /// <param name="exMessage"></param> /// <param name="objList"></param> /// <returns></returns> ReturnSuccessMessage<T>( ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.8em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,List<T> objList) { data = ListToJson<T>(objList); true ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.8em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,data); } ReturnSuccessMessagetouch<T>(T obj) { data = ObjectToJson<T>(obj); data; } /// <summary> /// 返回成功信息 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="total"></param> /// <param name="message"></param> /// <param name="exMessage"></param> /// <param name="objList"></param> /// <returns></returns> ReturnSuccessMessage( exMessage) { ); } /// <summary> /// 返回成功信息 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="total"></param> /// <param name="message"></param> /// <param name="exMessage"></param> /// <param name="objList"></param> /// <returns></returns> ReturnSuccessMessagetouch( exMessage) { "{\"success\":\"true\",monospace!important; min-height:inherit!important">+ message + ; } /// <summary> /// 返回成功信息 /// </summary> /// <param name="message"></param> /// <param name="exMessage"></param> /// <param name="data">JSON 对象</param> /// <returns></returns> data) { "[" + data + "]" ); } /// <summary> /// 返回成功消息 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="total"></param> /// <param name="message"></param> /// <param name="exMessage"></param> /// <param name="obj"></param> /// <returns></returns> ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.8em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,T obj) { data = ObjectToJson<T>(obj); } /// <summary> /// 把对象列表编码为Json数据 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="objList"></param> /// <returns></returns> ListToJson<T>(List<T> objList) { JsonSerializer serializer = JsonSerializer(); SerializerSetting(serializer); AddisoDateTimeConverter(serializer); (TextWriter sw = StringWriter()) (JsonWriter writer = JsonTextWriter(sw)) { serializer.Serialize(writer,objList); sw.ToString(); } } /// <summary> /// 把一个对象编码为Json数据 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="obj"></param> /// <returns></returns> ObjectToJson<T>(T obj) { JsonSerializer(); SerializerSetting(serializer); AddisoDateTimeConverter(serializer); StringWriter()) JsonTextWriter(sw)) { sw.ToString(); } } /// <summary> /// 根据传入的Json数据，解码为对象(一个) /// </summary> /// <typeparam name="T"></typeparam> /// <param name="data"></param> /// <returns></returns> static T DecodeObject<T>( data) { JsonSerializer(); serializer.MissingMemberHandling = MissingMemberHandling.Ignore; AddisoDateTimeConverter(serializer); StringReader sr = StringReader(data); (T)serializer.Deserialize(sr,255)!important">typeof (T)); } /// <summary> /// 功能同DecodeObject /// </summary> /// <typeparam name="T"></typeparam> /// <param name="data"></param> /// <returns></returns> List<T> DecodeObjectList<T>( data) { JsonSerializer(); serializer.MissingMemberHandling = MissingMemberHandling.Ignore; AddisoDateTimeConverter(serializer); StringReader(data); (List<T>)serializer.Deserialize(sr,monospace!important; min-height:inherit!important">(List<T>)); } EncodeAjaxResponseJson( jsonString,monospace!important; min-height:inherit!important">callback) { String responseString = ; //判断是否jsonp调用 if (!String.IsNullOrEmpty(callback)) { //jsonp调用，需要封装回调函数，并返回 responseString = callback + "(" + jsonString + ")" ; } else { //普通ajax调用，直接返回Json数据 responseString = jsonString; } responseString; } ExtGridSortInfo( property,monospace!important; min-height:inherit!important">direction) { "[{{\"property\":\"{0}\",\"direction\":\"{1}\"}}]" ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.8em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,property,direction); } } }