private sub class_initialize() path=request.servervariables("url") path=left(path,instrRev(path,"/")) end sub
private sub class_terminate() end sub
public property get blEmpty '是否為空 if isempty(obj) then blEmpty=true else blEmpty=false end if end property
public property get valid '是否可用(過期) if isempty(obj) or not isDate(expireTime) then valid=false elseif CDate(expireTime)now then valid=false else valid=true end if end property
public property let name(str) '設置cache名 cacheName=str path obj=application(cacheName) expireTimeName=str "expires" path expireTime=application(expireTimeName) end property
public property let expires(tm) '重設置過期時間 expireTime=tm application.lock application(expireTimeName)=expireTime application.unlock end property
public sub add(var,expire) '賦值 if isempty(var) or not isDate(expire) then exit sub end if obj=var expireTime=expire application.lock application(cacheName)=obj application(expireTimeName)=expireTime application.unlock end sub
public property get value '取值 if isempty(obj) or not isDate(expireTime) then value=null elseif CDate(expireTime)now then value=null else value=obj end if end property
public sub makeEmpty() '釋放application application.lock application(cacheName)=empty application(expireTimeName)=empty application.unlock obj=empty expireTime=empty end sub
public function equal(var2) '比較 if typename(obj)>typename(var2) then equal=false elseif typename(obj)="Object" then if obj is var2 then equal=true else equal=false end if elseif typename(obj)="Variant()" then if join(obj,"^")=join(var2,"^") then equal=true else equal=false end if else if obj=var2 then equal=true else equal=false end if end if end function
end class
dim content,myCache Set myCache = new Cache myCache.name="sofoisndoffo" '定義緩存名稱 if myCache.valid then '如果緩存有效 content=myCache.value '讀取緩存內容 else content="sosuo8.com測試" '大量內容，可以是非常耗時大量數(shù)據(jù)庫查詢記錄集 myCache.add content,dateadd("n",1000,now) '將內容賦值給緩存，并設置緩存有效期是當前時間＋1000分鐘 end if Response.Write(content) 'myCache.makeEmpty() set clsCache=nothing '釋放對象 %>
