我要评论session的基本设置：
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：
session.abandon();//清除全部session
//清除某个session
session["username"] = null;
session.remove("username");
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