首页 > 代码库 > JsonHelper

JsonHelper

2024-07-28 15:27:33   219人阅读

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(">", "&gt;");
 str = str.Replace(" ", "&nbsp;");
 str = str.Replace("\n", "<br>");
 str = str.Replace("&", "&amp;");
 return str;
 }
 }

 

JsonHelper


联系
我们