1 public class SessionHelper
2 {
3 /// <summary>
4 /// 根据session名获取session对象
5 /// </summary>
6 /// <param name="name"></param>
7 /// <returns></returns>
8 public static object GetSession(string name)
9 {
10 return HttpContext.Current.Session[name];
11 }
12 /// <summary>
13 /// 设置session
14 /// </summary>
15 /// <param name="name">session 名</param>
16 /// <param name="val">session 值</param>
17 public static void SetSession(string name, object val)
18 {
19 HttpContext.Current.Session.Remove(name);
20 HttpContext.Current.Session.Add(name, val);
21 }
22 /// <summary>
23 /// 添加Session，调动有效期为20分钟
24 /// </summary>
25 /// <param name="strSessionName">Session对象名称</param>
26 /// <param name="strValue">Session值</param>
27 public static void Add(string strSessionName, string strValue)
28 {
29 HttpContext.Current.Session[strSessionName] = strValue;
30 HttpContext.Current.Session.Timeout = 20;
31 }
32
33 /// <summary>
34 /// 添加Session，调动有效期为20分钟
35 /// </summary>
36 /// <param name="strSessionName">Session对象名称</param>
37 /// <param name="strValues">Session值数组</param>
38 public static void Adds(string strSessionName, string[] strValues)
39 {
40 HttpContext.Current.Session[strSessionName] = strValues;
41 HttpContext.Current.Session.Timeout = 20;
42 }
43
44 /// <summary>
45 /// 添加Session
46 /// </summary>
47 /// <param name="strSessionName">Session对象名称</param>
48 /// <param name="strValue">Session值</param>
49 /// <param name="iExpires">调动有效期（分钟）</param>
50 public static void Add(string strSessionName, string strValue, int iExpires)
51 {
52 HttpContext.Current.Session[strSessionName] = strValue;
53 HttpContext.Current.Session.Timeout = iExpires;
54 }
55
56 /// <summary>
57 /// 添加Session
58 /// </summary>
59 /// <param name="strSessionName">Session对象名称</param>
60 /// <param name="strValues">Session值数组</param>
61 /// <param name="iExpires">调动有效期（分钟）</param>
62 public static void Adds(string strSessionName, string[] strValues, int iExpires)
63 {
64 HttpContext.Current.Session[strSessionName] = strValues;
65 HttpContext.Current.Session.Timeout = iExpires;
66 }
67
68 /// <summary>
69 /// 读取某个Session对象值
70 /// </summary>
71 /// <param name="strSessionName">Session对象名称</param>
72 /// <returns>Session对象值</returns>
73 public static string Get(string strSessionName)
74 {
75 if (HttpContext.Current.Session[strSessionName] == null)
76 {
77 return null;
78 }
79 else
80 {
81 return HttpContext.Current.Session[strSessionName].ToString();
82 }
83 }
84
85 public static void Set<T>(string strSessionName, T value) where T : class , new()
86 {
87 HttpContext.Current.Session[strSessionName] = value;
88 HttpContext.Current.Session.Timeout = 24 * 60;
89 }
90
91 /// <summary>
92 /// 读取某个Session对象值
93 /// </summary>
94 /// <param name="strSessionName">Session对象名称</param>
95 /// <returns>Session对象值</returns>
96 public static T Get<T>(string strSessionName) where T : class , new()
97 {
98 if (HttpContext.Current == null || HttpContext.Current.Session == null || HttpContext.Current.Session[strSessionName] == null)
99 {
100 return null;
101 }
102 else
103 {
104 return HttpContext.Current.Session[strSessionName] as T;
105 }
106 }
107
108 /// <summary>
109 /// 读取某个Session对象值数组
110 /// </summary>
111 /// <param name="strSessionName">Session对象名称</param>
112 /// <returns>Session对象值数组</returns>
113 public static string[] Gets(string strSessionName)
114 {
115 if (HttpContext.Current.Session[strSessionName] == null)
116 {
117 return null;
118 }
119 else
120 {
121 return (string[])HttpContext.Current.Session[strSessionName];
122 }
123 }
124
125 /// <summary>
126 /// 删除某个Session对象
127 /// </summary>
128 /// <param name="strSessionName">Session对象名称</param>
129 public static void Del(string strSessionName)
130 {
131 HttpContext.Current.Session[strSessionName] = null;
132 }
133 }
