使用本文中的JSONConvert类可将任意JSON字符串转化为JSONObject或JSONArray对象，并获取需要的值，克服了.NET自带JSON类反序列化时需知道并引用序列化时使用的类的缺点。当然，也可以使用JSONConvert类进行序列化，构造出JSON字符串。
JSON解析类
//using System.Collections.Generic;
//using System.Text;
//using System.Text.RegularExpressions;
/// <summary>
/// 类 名：JSONConvert
/// 描 述：JSON解析类
/// 编 写：dnawo
/// 站 点：http://www.mzwu.com/
/// 日 期：2010-01-06
/// 版 本：1.1.0
/// </summary>
public static class JSONConvert
{
#region 全局变量private static JSONObject _json = new JSONObject();//寄存器
private static readonly string _SEMICOLON = "@semicolon";//分号转义符
private static readonly string _COMMA = "@comma"; //逗号转义符
#endregion#region 字符串转义
/// <summary>
/// 字符串转义,将双引号内的:和,分别转成_SEMICOLON和_COMMA
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
private static string StrEncode(string text)
{
MatchCollection matches = Regex.Matches(text, "\\\"[^\\\"]+\\\"");
foreach (Match match in matches)
{
text = text.Replace(match.Value, match.Value.Replace(":", _SEMICOLON).Replace(",", _COMMA));
}return text;
}/// <summary>
/// 字符串转义,将_SEMICOLON和_COMMA分别转成:和,
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
private static string StrDecode(string text)
{
return text.Replace(_SEMICOLON, ":").Replace(_COMMA, ",");
}#endregion#region JSON最小单元解析/// <summary>
/// 最小对象转为JSONObject
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
private static JSONObject DeserializeSingletonObject(string text)
{
JSONObject jsonObject = new JSONObject();
MatchCollection matches
= Regex.Matches(text, "(\\\"(?<key>[^\\\"]+)\\\":\\\"(?<value>[^,\\\"]+)\\\")|(\\\"(?<key>[^\\\"]+)\\\":(?<value>[^,\\\"\\}]+))");
foreach (Match match in matches)
{
string value = match.Groups["value"].Value;
jsonObject.Add(match.Groups["key"].Value, _json.ContainsKey(value) ? _json[value] : StrDecode(value));
}return jsonObject;
}/// <summary>
/// 最小数组转为JSONArray
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
private static JSONArray DeserializeSingletonArray(string text)
{
JSONArray jsonArray = new JSONArray(); MatchCollection matches
= Regex.Matches(text, "(\\\"(?<value>[^,\\\"]+)\")|(?<value>[^,\\[\\]]+)");
foreach (Match match in matches)
{
string value = match.Groups["value"].Value;
jsonArray.Add(_json.ContainsKey(value) ? _json[value] : StrDecode(value));
}return jsonArray;
}/// <summary>
/// 反序列化
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
private static string Deserialize(string text)
{
text = StrEncode(text);//转义;和,
int count = 0;
string key = string.Empty;
string pattern = "(\\{[^\\[\\]\\{\\}]+\\})|(\\[[^\\[\\]\\{\\}]+\\])";while (Regex.IsMatch(text, pattern))
{
MatchCollection matches = Regex.Matches(text, pattern);
foreach (Match match in matches)
{
key = "___key" + count + "___";if (match.Value.Substring(0, 1) == "{")
_json.Add(key, DeserializeSingletonObject(match.Value));
else
_json.Add(key, DeserializeSingletonArray(match.Value)); text
= text.Replace(match.Value, key); count
++;
}
}
return text;
}#endregion#region 公共接口/// <summary>
/// 序列化JSONObject对象
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public static JSONObject DeserializeObject(string text)
{
return _json[Deserialize(text)] as JSONObject;
}/// <summary>
/// 序列化JSONArray对象
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public static JSONArray DeserializeArray(string text)
{
return _json[Deserialize(text)] as JSONArray;
}
/// <summary>
/// 反序列化JSONObject对象
/// </summary>
/// <param name="jsonObject"></param>
/// <returns></returns>
public static string SerializeObject(JSONObject jsonObject)
{
StringBuilder sb = new StringBuilder();
sb.Append("{");
foreach (KeyValuePair<string, object> kvp in jsonObject)
{
if (kvp.Value is JSONObject)
{
sb.Append(string.Format("\"{0}\":{1},", kvp.Key, SerializeObject((JSONObject)kvp.Value)));
}
else if (kvp.Value is JSONArray)
{
sb.Append(string.Format("\"{0}\":{1},", kvp.Key, SerializeArray((JSONArray)kvp.Value)));
}
else if (kvp.Value is String)
{
sb.Append(string.Format("\"{0}\":\"{1}\",", kvp.Key, kvp.Value));
}
else
{
sb.Append(string.Format("\"{0}\":\"{1}\",", kvp.Key, ""));
}
}
if (sb.Length > 1)
sb.Remove(sb.Length - 1, 1);
sb.Append("}");
return sb.ToString();
}
/// <summary>
/// 反序列化JSONArray对象
/// </summary>
/// <param name="jsonArray"></param>
/// <returns></returns>
public static string SerializeArray(JSONArray jsonArray)
{
StringBuilder sb = new StringBuilder();
sb.Append("[");
for (int i = 0; i < jsonArray.Count; i++)
{
if (jsonArray[i] is JSONObject)
{
sb.Append(string.Format("{0},", SerializeObject((JSONObject)jsonArray[i])));
}
else if (jsonArray[i] is JSONArray)
{
sb.Append(string.Format("{0},", SerializeArray((JSONArray)jsonArray[i])));
}
else if (jsonArray[i] is String)
{
sb.Append(string.Format("\"{0}\",", jsonArray[i]));
}
else
{
sb.Append(string.Format("\"{0}\",", ""));
} }
if (sb.Length > 1)
sb.Remove(sb.Length - 1, 1);
sb.Append("]");
return sb.ToString();
}
#endregion
}/// <summary>
/// 类 名：JSONObject
/// 描 述：JSON对象类
/// 编 写：dnawo
/// 站 点：http://www.mzwu.com/
/// 日 期：2010-01-06
/// 版 本：1.1.0
/// 更新历史：
/// 2010-01-06 继承Dictionary<TKey, TValue>代替this[]
/// </summary>
public class JSONObject : Dictionary<string, object>
{}/// <summary>
/// 类 名：JSONArray
/// 描 述：JSON数组类
/// 编 写：dnawo
/// 站 点：http://www.mzwu.com/
/// 日 期：2010-01-06
/// 版 本：1.1.0
/// 更新历史：
/// 2010-01-06 继承List<T>代替this[]
/// </summary>
public class JSONArray : List<object>
{} 调用示例
调用示例
//序列化
JSONArray jsonArray = new JSONArray();
jsonArray.Add("2006");
jsonArray.Add("2007");
jsonArray.Add("2008");
jsonArray.Add("2009");
jsonArray.Add("2010");
JSONObject jsonObject
= new JSONObject();
jsonObject.Add("domain", "mzwu.com");
jsonObject.Add("years", jsonArray);Console.WriteLine(JSONConvert.SerializeObject(jsonObject));
//反序列化
JSONObject json = JSONConvert.DeserializeObject("{\"domain\":\"mzwu.com\",\"years\":[2006,2007,2008,2009,2010]}");
if (json != null)
{
Console.WriteLine(json["domain"]);
Console.WriteLine(((JSONArray)json["years"])[3]);
} 
