C#程序中session的基本設置示例及清除session的方法

session的基本設置：

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 using System; using System.Collections.Generic; using System.Text; using System.Web; using System.Web.SessionState; namespace OAFrameWork { public class CSession { public static object Get(string Key) { return HttpContext.Current.Session[Key]; } public static string GetString(string Key) { object obj = HttpContext.Current.Session[Key]; if (obj == null) return ""; else return obj.ToString(); } public static object Get(string Key,object DefaultValue) { if (HttpContext.Current.Session[Key] == null) return DefaultValue; else return HttpContext.Current.Session[Key]; } public static object Get(string Key, object DefaultValue,Boolean CanAdd) { if (HttpContext.Current.Session[Key] == null) { if(CanAdd==true) HttpContext.Current.Session.Add(Key, DefaultValue); return DefaultValue; } else return HttpContext.Current.Session[Key]; } public static Boolean Set(string Key,object Value) { try { if (Value == null && HttpContext.Current.Session[Key] != null) { HttpContext.Current.Session.Remove(Key); } else if (HttpContext.Current.Session[Key] == null) { HttpContext.Current.Session.Add(Key, Value); } else { HttpContext.Current.Session[Key] = Value; } return true; } catch (Exception ex) { CMsgBox.Show(ex.Message); return false; } } } }

清除Session：

? 1 2 3 4 Session.Abandon();//清除全部Session //清除某個Session Session["UserName"] = null; Session.Remove("UserName");