技巧文章:实用的ASP连接数据库的函数
细心的开发人员有时会想到,我们在一个需要读写数据库的页面里包含类似!-- #include file="conn.asp" --的代码时,实际上,当你没有进行任何读写数据库操作时,这个数据库连接仍然是打开的,仍然在消耗着服务器的资源。 那么,我们有没有办法让数据库连接仅
细心的开发人员有时会想到,我们在一个需要读写数据库的页面里包含类似的代码时,实际上,当你没有进行任何读写数据库操作时,这个数据库连接仍然是打开的,仍然在消耗着服务器的资源。
那么,我们有没有办法让数据库连接仅在需要读取数据库时才打开,不读取时就没有任何动作呢,以下即提供这种思路,以求抛砖引玉。
这种思路即是将数据库连接代码封装在函数里,在需要读取时调用这个函数。
以下是SQL连接代码:
Function Open_conn()
dim Conn,Strconn
set Conn=server.createobject("adodb.connection")
Strconn = "Provider = Sqloledb; User ID = 数据库登录帐号; Password = 数据库登录密码; Initial Catalog = 数据库名称; Data Source = (local);"
Conn.open Strconn
set Open_conn=Conn
If Err Then
err.Clear
Conn.close:set Conn=nothing
Response.Write "对不起,数据库连接出错。"
Response.End
End If
End Function
调用方法:
将原来的
rs.open sql,conn
改成
rs.open sql,Open_conn()
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