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上一篇中有Json序列化相关问题得到了解决。
那么结果集为Json串时，如何将Json串转成C#对象呢？
现举例说明:
-现有如下字符串数据
string k = "{\"rings\":[" +"[[34995.513100000098,4304381.4231000002],[34988.120099999942,4304371.5420999993]," + "[34995.513100000098,4304381.4231000002],[34988.120099999942,4304371.5420999993]," + "[34995.513100000098,4304381.4231000002],[34988.120099999942,4304371.5420999993]]]," + "\"spatialReference\":";
-想将上面的数据转换成List<point>
public class point { public decimal x { get; set; } public decimal y { get; set; } }
步骤1：
-截取字符串
public string strCutOut(string str) { string str1 = str.Substring(str.IndexOf(":[[") + 3, str.IndexOf("]],") - 11); string str2 = str1.Replace("],[", "]$["); string str3 = str2.Replace("[", "{‘x‘:"); string str4 = str3.Replace("]", "}"); string str5 = str4.Replace(",", ",‘y‘:"); string str6 = str5.Replace("$", ","); string str7 = str6.Replace("‘", "\""); return str7; }
-得到如下字符串
"{\"x\":34995.513100000098,\"y\":4304381.4231000002},
{\"x\":34988.120099999942,\"y\":4304371.5420999993},
{\"x\":34995.513100000098,\"y\":4304381.4231000002},
{\"x\":34988.120099999942,\"y\":4304371.5420999993},
{\"x\":34995.513100000098,\"y\":4304381.4231000002},
{\"x\":34988.120099999942,\"y\":4304371.5420999993}"
步骤2：
-引用System.Runtime.Serialization.Json;
-反序列化字符串
public List<point> convertObject(string json) { MemoryStream stream2 = new MemoryStream(); DataContractJsonSerializer ser2 = new DataContractJsonSerializer(typeof(List<point>)); StreamWriter wr = new StreamWriter(stream2); wr.Write(json); wr.Flush(); stream2.Position = 0; Object obj = ser2.ReadObject(stream2); List<point> list = (List<point>)obj; return list; }
步骤3：
-调用字符串截取及反序列化字符串
public void readJson(){ string k = "{\"rings\":[" +"[[34995.513100000098,4304381.4231000002],[34988.120099999942,4304371.5420999993]," + "[34995.513100000098,4304381.4231000002],[34988.120099999942,4304371.5420999993]," + "[34995.513100000098,4304381.4231000002],[34988.120099999942,4304371.5420999993]]]," + "\"spatialReference\":"; string str = strCutOut(k); string json = "[" + str + "]"; List<point> ls = convertObject(json); }
*得到的结果集ls为:
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原文地址：http://www.cnblogs.com/zhenhong/p/4500605.html
