利用.NET 3.5以後的擴充套件方法重寫JSON序列化和反序列化，在程式碼可讀性和可維護性上更加加強了。

首先是不使用擴充套件方法的寫法

定義部分：

  1. /// <summary> 
  2. /// JSON序列化反序列化工具 
  3. /// </summary> 
  4. public class JSONControl 
  5. { 
  6. /// <summary> 
  7. /// JSON序列化 
  8. /// </summary> 
  9. /// <typeparam name="T"></typeparam> 
  10. /// <param name="_Object"></param> 
  11. /// <returns></returns> 
  12. public static String JsonSerializer<T>(T _Object) 
  13. { 
  14. using (MemoryStream TempMemoryStream = new MemoryStream()) 
  15. { 
  16. String MySerializationString = String.Empty; 
  17. DataContractJsonSerializer MyDataContractJsonSerializer = new DataContractJsonSerializer(typeof(T)); 
  18. MyDataContractJsonSerializer.WriteObject(TempMemoryStream, _Object); 
  19. MySerializationString = Encoding.UTF8.GetString(TempMemoryStream.ToArray()); 
  20. return MySerializationString; 
  21. } 
  23. } 
  25. /// <summary> 
  26. /// 反序列化 
  27. /// </summary> 
  28. /// <typeparam name="T"></typeparam> 
  29. /// <param name="_JsonString"></param> 
  30. /// <returns></returns> 
  31. public static T JsonDeserializer<T>(String _JsonString) 
  32. { 
  33. using (MemoryStream TempMemoryStream = new MemoryStream(Encoding.UTF8.GetBytes(_JsonString))) 
  34. { 
  35. DataContractJsonSerializer MyDataContractJsonSerializer = new DataContractJsonSerializer(typeof(T)); 
  36. return (T)MyDataContractJsonSerializer.ReadObject(TempMemoryStream); 
  37. } 
  38. } 
  39. }

使用部分：

  1. /// <summary> 
  2. /// 場景控制物件 
  3. /// </summary> 
  4. public class SceneControl 
  5. { 
  6. /// <summary> 
  7. /// 臨時序列化物件 
  8. /// </summary> 
  9. [DataContract] 
  10. public class TempClass 
  11. { 
  12. /// <summary> 
  13. /// 屬性1 
  14. /// </summary> 
  15. [DataMember(Name = "Property1")] 
  16. public String Property1 { get; set; } 
  18. /// <summary> 
  19. /// 屬性2 
  20. /// </summary> 
  21. [DataMember(Name = "Property2")] 
  22. public String Property2 { get; set; } 
  23. } 
  25. /// <summary> 
  26. /// 測試 
  27. /// </summary> 
  28. public void Test() 
  29. { 
  30. String JsonString = "{'Property1':'111','Property2':'2'}"; 
  31. TempClass MyTempClass = JSONControl.JsonDeserializer<TempClass>(JsonString); 
  32. } 
  33. }

然後是使用擴充套件方法的寫法

定義部分：

  1. /// <summary> 
  2. /// JSON序列化反序列化工具 
  3. /// </summary> 
  4. public static class JSONControl 
  5. { 
  6. /// <summary> 
  7. /// JSON序列化 
  8. /// </summary> 
  9. /// <typeparam name="T"></typeparam> 
  10. /// <param name="_Object"></param> 
  11. /// <returns></returns> 
  12. public static String ObjectToJson<T>(this T _Object) 
  13. { 
  14. using (MemoryStream TempMemoryStream = new MemoryStream()) 
  15. { 
  16. String MySerializationString = String.Empty; 
  17. DataContractJsonSerializer MyDataContractJsonSerializer = new DataContractJsonSerializer(typeof(T)); 
  18. MyDataContractJsonSerializer.WriteObject(TempMemoryStream, _Object); 
  19. MySerializationString = Encoding.UTF8.GetString(TempMemoryStream.ToArray()); 
  20. return MySerializationString; 
  21. } 
  23. } 
  25. /// <summary> 
  26. /// JSON反序列化 
  27. /// </summary> 
  28. /// <typeparam name="T"></typeparam> 
  29. /// <param name="_JsonString"></param> 
  30. /// <returns></returns> 
  31. public static T JsonToObject<T>(this String _JsonString) 
  32. { 
  33. using (MemoryStream TempMemoryStream = new MemoryStream(Encoding.UTF8.GetBytes(_JsonString))) 
  34. { 
  35. DataContractJsonSerializer MyDataContractJsonSerializer = new DataContractJsonSerializer(typeof(T)); 
  36. return (T)MyDataContractJsonSerializer.ReadObject(TempMemoryStream); 
  37. } 
  38. } 
  39. }

使用部分：

  1. /// <summary> 
  2. /// 場景控制物件 
  3. /// </summary> 
  4. public class SceneControl 
  5. { 
  6. /// <summary> 
  7. /// 臨時序列化物件 
  8. /// </summary> 
  9. [DataContract] 
  10. public class TempClass 
  11. { 
  12. /// <summary> 
  13. /// 屬性1 
  14. /// </summary> 
  15. [DataMember(Name = "Property1")] 
  16. public String Property1 { get; set; } 
  18. /// <summary> 
  19. /// 屬性2 
  20. /// </summary> 
  21. [DataMember(Name = "Property2")] 
  22. public String Property2 { get; set; } 
  23. } 
  25. /// <summary> 
  26. /// 測試 
  27. /// </summary> 
  28. public void Test() 
  29. { 
  30. String JsonString = "{'Property1':'111','Property2':'2'}"; 
  31. TempClass MyTempClass = JsonString.JsonToObject<TempClass>(); 
  32. } 
  33. }

原文地址：http://zhangrou.net/post/2014/06/23/利用擴充套件方法重寫JSON序列化和反序列化.aspx