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关于客户端用ASP参生报表（高级篇）
发表于：2007-06-30来源：作者：点击数：
标签：
上回曾贴一篇较简单的用ASP＋RDS客户端参生报表 此回贴一篇较复杂的用ASP＋RDS＋组件客户端参生报表 错误说明：(若提示ActiveX 元件无法参生 RDS.DataSpace) IE需设置 安全 选项 操作：菜单工具-INTERNET选项-安全性-自定义 设置：起始但ActiveX不标示为安全-
上回曾贴一篇较简单的用ASP＋RDS客户端参生报表
此回贴一篇较复杂的用ASP＋RDS＋组件客户端参生报表
错误说明：(若提示ActiveX 元件无法参生 RDS.DataSpace)
IE需设置安全选项
操作：菜单工具->INTERNET选项->安全性->自定义
设置：起始但ActiveX不标示为安全->开启
原理说明：
客户端直接用RDS产生RecordSet安全性不够，使用了
middle-tier Automation components 后可大大增加安全性！
请看下文：
编写注册元件：
ActiveX Dll project:iacrdsobj.vbp
Class Module name:RsOp
Public Function ReturnRs(strDB As Variant, strSQL As Variant) As ADODB.Recordset
@#Returns an ADODB recordset.
On Error GoTo ehGetRecordset
Dim cn As New ADODB.Connection
Dim rs As New ADODB.Recordset
Dim strConnect As String
strConnect = "Provider=SQLOLEDB;Server=server name ;uid=sa;pwd=; Database=" & strDB & ";"
cn.Open strConnect
@#These are not listed in the typelib.
rs.CursorLocation = adUseClient
@#Using the Unspecified parameters, an ADO/R recordset is returned.
rs.Open strSQL, cn, adOpenUnspecified, adLockUnspecified, adCmdUnspecified
Set ReturnRs = rs
Exit Function
ehGetRecordset:
Err.Raise Err.Number, Err.Source, Err.Description
End Function
然后 MAKE iacrdsobj.dll
若有错，请设置VB菜单PROJECT－REFREENCE
增加 MicroSoft ActiveX Data Object 2.6 Library(当然数字要高一点)
然后 注册iacrdsobj.dll到数据库server(为安全，最好更改数据库uid最好不为sa)！
好，接下来看asp
long1.asp
<html>
<head>
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<title>client use rds produce excel report</title>
</head>
<body bgColor=skyblue topMargin=5 leftMargin="20" oncontextmenu="return false" rightMargin=0 bottomMargin="0">
<div align="center"><center>
<table border="1" bgcolor="#ffe4b5" style="HEIGHT: 1px; TOP: 0px" bordercolor="#0000ff">
<tr>
<td align="middle" bgcolor="#ffffff" bordercolor="#000080">
<font color="#000080" size="3">
client use rds produce excel report
</font>
</td>
</tr>
</table>
</div>
<form action="long1.asp" method="post" name="myform">
<DIV align=left>
<input type="button" value="Query Data" name="query" language="vbscript" onclick="fun_excel(1)" style="HEIGHT: 32px; WIDTH: 90px">
<input type="button" value="Clear Data" name="Clear" language="vbscript" onclick="fun_excel(2)" style="HEIGHT: 32px; WIDTH: 90px">
<input type="button" value="Excel Report" name="report" language="vbscript" onclick="fun_excel(3)" style="HEIGHT: 32px; WIDTH: 90px">
</div>
<DIV id="adddata"></div>
</form>
</body>
</html>
<script language="vbscript">
sub fun_excel(t)
Dim rds,rs,df,ServerStr
dim strSQL,StrRs
Dim xlApp, xlBook, xlSheet1
ServerStr="http://Sql Server Name" @#the sql server name of register iacRDSObj.dll
@#use rds to produce client recordset
set rds = CreateObject("RDS.DataSpace",ServerStr)
@#eg:set rds = CreateObject("RDS.DataSpace","http://iac_fa") @#iac_fa is the LAN sql server name
@#eg:set rds = CreateObject("RDS.DataSpace","http://10.150.254.102") @#10.150.254.102 is the LAN sql server IP Address
@#the register com
Set df = rds.CreateObject("iacRDSObj.rsop", ServerStr)
@#the query string of sql
strSQL = "Select top 8 * from jobs order by job_id"
@#the recordset
Set rs = df.ReturnRs("pubs",strSQL)
if t=1 then
if not rs.eof then
StrRs="<table border=1><tr><td>job_id</td><td>job_desc</td><td>max_lvl</td><td>min_lvl</td></tr><tr><td>"+ rs.GetString(,,"</td><td>","</td></tr><tr><td>"," ") +"</td></tr></table>"
adddata.innerHTML=StrRs
StrRs=""
else
msgbox "No data in the table!"
end if
elseif t=2 then
StrRs=""
adddata.innerHTML=StrRs
elseif t=3 then
Set xlApp = CreateObject("EXCEL.APPLICATION")
Set xlBook = xlApp.Workbooks.Add
Set xlSheet1 = xlBook.Worksheets(1)
xlSheet1.cells(1,1).value ="the job table "
xlSheet1.range("A1:D1").merge
xlSheet1.cells(2,1).value = "job_id"
xlSheet1.cells(2,2).value = "job_desc"
xlSheet1.cells(2,3).value = "max_lvl"
xlSheet1.cells(2,4).value = "min_lvl"
cnt = 3
@#adapt to office 97 and 2000
do while not rs.eof
xlSheet1.cells(cnt,1).value = rs("job_id")
xlSheet1.cells(cnt,2).value = rs("job_desc")
xlSheet1.cells(cnt,3).value = rs("max_lvl")
xlSheet1.cells(cnt,4).value = rs("min_lvl")
rs.movenext
cnt = cint(cnt) + 1
loop
xlSheet1.Application.Visible = True
@#adapt to office 2000 only
@#xlSheet1.Range("A3").CopyFromRecordset rs
@#xlSheet1.Application.Visible = True
end if
rs.close
set rs=nothing
end sub
</script>
