JsonHelper

public class JsonHelper

 {

 /// <summary> /// 。net对象序列化为Json对象 /// </summary> /// <typeparam name="T">。net对象类型</typeparam> /// <param name="obj">需要序列化的。net对象</param> /// <returns>Json对象</returns> public static string ToJson<T>(T obj)

 {

 System.Web.Script.Serialization.JavaScriptSerializer script = new System.Web.Script.Serialization.JavaScriptSerializer();

 return script.Serialize(obj);

 }

 /// <summary> /// 反序列化Json对象 /// </summary> /// <typeparam name="T">需要转换成的对象</typeparam> /// <param name="sJson">Json串</param> /// <returns>。net对象</returns> public static T Deserialize<T>(string sJson) where T : class

 {

 System.Web.Script.Serialization.JavaScriptSerializer script = new System.Web.Script.Serialization.JavaScriptSerializer();

 return script.Deserialize<T>(sJson);

 }

 /// <summary> /// List数组对象序列化 /// </summary> /// <typeparam name="T">对象类型</typeparam> /// <param name="obj">List对象值</param> /// <returns>Json串</returns> public static String ToString<T>(List<T> obj)

 {

 string str = string.Empty;

 foreach (object o in obj)

 {

 str = str + o.ToString() + "\r\n";

 }

 return str;

 }

 // 将datatable转换为json public static string Dtb2Json(DataTable dtb)

 {

 System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();

 System.Collections.ArrayList dic = new System.Collections.ArrayList();

 foreach (DataRow dr in dtb.Rows)

 {

 System.Collections.Generic.Dictionary<string, object> drow = new System.Collections.Generic.Dictionary<string, object>();

 foreach (DataColumn dc in dtb.Columns)

 {

 drow.Add(dc.ColumnName, dr[dc.ColumnName]);

 }

 dic.Add(drow);

  

}

 //序列化 return jss.Serialize(dic);

 }

 /// <summary> /// Model 转换为Json /// </summary> /// <typeparam name="T">数据类型</typeparam> /// <param name="obj">数据对象</param> /// <returns></returns> public static string ObjectToJson<T>(T o)

 {

 StringBuilder Json = new StringBuilder();

 T obj = Activator.CreateInstance<T>();

 Type type = obj.GetType();

 PropertyInfo[] Pi = type.GetProperties();

 Json.Append("{");

 for (int i = 0; i < Pi.Length; i++)

 {

 Json.Append("\"" + Pi[i].Name.ToString() + "\":\"" + ChangeString(StringHelper.SetString(Pi[i].GetValue(o, null))) + "\"");

 if (i < Pi.Length - 1)

 {

 Json.Append(",");

 }

 }

 Json.Append("}");

 return Json.ToString();

 }

 /// <summary> /// 把含有html标签的元素进行转换 /// </summary> /// <param name="str"></param> /// <returns></returns> private static string ChangeString(string str)

 {

 //str含有HTML标签的文本 str = str.Replace("<", "&lt;");

 str = str.Replace(">", ">");

 str = str.Replace(" ", " ");

 str = str.Replace("\n", "<br>");

 str = str.Replace("&", "&");

 return str;

 }

 }