• 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    公众号

一个改进的ASP生成SQL命令字符串类的代码[已测]

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

复制代码 代码如下:

<%
class SQLString
'************************************
'变量定义
'************************************
'sTableName ---- 表名
'iSQLType ----SQL语句类型:0-增加,1-更新,2-删除,3-查询
'sWhere ---- 条件
'sOrder ---- 排序方式
'sSQL ----值
Private sTableName,iSQLType,sWhere,sOrder,sSQL
'************************************
'类初始化/结束
'************************************
Private Sub Class_Initialize()
sTableName=""
iSQLType=0
sWhere=""
sOrder=""
sSQL=""
End Sub
Private Sub Class_Terminate()
End Sub
'************************************
'属性
'************************************
'设置表名的属性
Public Property Let TableName(value)
sTableName=value
End Property
'设置条件
Public Property Let Where(value)
sWhere=value
End Property
'设置排序方式
Public Property Let Order(value)
sOrder=value
End Property
'设置查询语句的类型
Public property Let SQLType(value)
iSQLType=value
select case iSQLType
case 0
sSQL="insert into {&*#}0 ({&*#}1) values ({&*#}2)"
case 1
sSQL="update {&*#}0 set {&*#}1={&*#}2"
case 2
sSQL="delete from {&*#}0 "
case 3
sSQL="select {&*#}1 from {&*#}0 "
end select
End Property
'************************************
'函数
'************************************
'增加字段(字段名称,字段值)
Public Sub AddField(sFieldName,sValue)
select case iSQLType
case 0
sSQL=replace(sSQL,"{&*#}1",sFieldName & ",{&*#}1")
sSQL=replace(sSQL,"{&*#}2","" & sValue & ",{&*#}2")
case 1
sSQL=replace(sSQL,"{&*#}1",sFieldName)
sSQL=replace(sSQL,"{&*#}2","" & sValue & ",{&*#}1={&*#}2")
case 3
sSQL=replace(sSQL,"{&*#}1",sFieldName & ",{&*#}1")
End Select
End Sub
'修改的返回字符串值的函数
'返回SQL语句
Public Function ReturnSQL()
sSQL=replace(sSQL,"{&*#}0",sTableName)
select case iSQLType
case 0
sSQL=replace(sSQL,",{&*#}1","")
sSQL=replace(sSQL,",{&*#}2","")
case 1
sSQL=replace(sSQL,",{&*#}1={&*#}2","")
case 3
sSQL=replace(sSQL,",{&*#}1","")
end Select
if sWhere<>"" and iSQLType<>0 then
sSQL=sSQL & " where " & sWhere
end if
if sOrder<>"" and iSQLType<>0 then
sSQL=sSQL & " order by " & sOrder
end if
ReturnSQL=sSQL
End Function
'返回SQL语句
Public Function ReturnSQL1()
sSQL=replace(sSQL,"{&*#}0",sTableName)
select case iSQLType
case 0
sSQL=replace(sSQL,",{&*#}1","")
sSQL=replace(sSQL,",{&*#}2","")
case 1
sSQL=replace(sSQL,",{&*#}1={&*#}2","")
case 3
sSQL=replace(sSQL,",{&*#}1","")
end Select
if sWhere<>"" and iSQLType<>0 then
sSQL=sSQL & " where " & sWhere
end if
if sOrder<>"" and iSQLType<>0 then
sSQL=sSQL & " order by " & sOrder
end if
ReturnSQL=sSQL
End Function
'清空语句
Public Sub Clear()
sTableName=""
iSQLType=0
sWhere=""
sOrder=""
sSQL=""
End Sub
End class
%>
调用例子:
<%
set a =new SQLString '创建类对象
a.TableName=" message " '设置表名为message
'a.where=" issend =9"
'a.order=" issend desc"
a.SQLType=0 '设置查询类型为增加记录
a.AddField " incept", "'2'"
a.AddField " sender ", "'%3%' "
a.AddField " title ", "#"&now&"#"
a.AddField " sender ", "5 "
a.AddField " content ", " 6 "
a.AddField " sendtime ", "7"
a.AddField " flag", 8
a.AddField " issend ", 9
Response.Write a.ReturnSQl
set a=nothing
%>
<%
set a =new SQLString '创建类对象
a.TableName=" message " '设置表名为message
'a.where=" issend =9"
'a.order=" issend desc"
a.SQLType=0 '设置查询类型为增加记录
a.AddField " incept", "'2'"
a.AddField " sender ", "'%3%' "
a.AddField " title ", "#"&now&"#"
a.AddField " sender ", "5 "
a.AddField " content ", " 6 "
a.AddField " sendtime ", "7"
a.AddField " flag", 8
a.AddField " issend ", 9
Response.Write a.ReturnSQl
set a=nothing
%>
<%
set a =new SQLString '创建类对象
a.TableName=" message " '设置表名为message
'a.where=" issend =9"
'a.order=" issend desc"
a.SQLType=0 '设置查询类型为增加记录
a.AddField " incept", "'2'"
a.AddField " sender ", "'%3%' "
a.AddField " title ", "#"&now&"#"
a.AddField " sender ", "5 "
a.AddField " content ", " 6 "
a.AddField " sendtime ", "7"
a.AddField " flag", 8
a.AddField " issend ", 9
Response.Write a.ReturnSQl
set a=nothing
%>


鲜花

握手

雷人

路过

鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
上一篇:
asp在服务器把 XML 转换为 XHTML的实现代码发布时间:2022-02-05
下一篇:
Asp限制IP访问 阻止某一个IP段禁止访问本站的代码发布时间:2022-02-05
热门推荐
热门话题
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服(服务时间 9:00~18:00)

在线QQ客服
地址:深圳市南山区西丽大学城创智工业园
电邮:jeky_zhao#qq.com
移动电话:139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap