当前位置: 首页 > 图文教程 > 网络编程 > ASP > 关于客户端用ASP参生报表(高级篇)

ASP
用asp执行DTC
利用ADODB.Stream使用浏览器下载服务器文件
应用数据库的唯一性约束并在asp中捕捉数据库的错误
用ASP编程控制在IIS建立Web站点
asp实现k线图(在线)
在ASP中用EasyMailObject组件处理Exchange邮件源代码(7)
在ASP中用EasyMailObject组件处理Exchange邮件源代码(6)
在ASP中用EasyMailObject组件处理Exchange邮件源代码(5)
在ASP中用EasyMailObject组件处理Exchange邮件源代码(4)
在ASP中用EasyMailObject组件处理Exchange邮件源代码(3)
在ASP中用EasyMailObject组件处理Exchange邮件源代码(2)
在ASP中用EasyMailObject组件处理Exchange邮件源代码(1)
用文本+ASP打造新闻发布系统。几点补充
用文本+ASP打造新闻发布系统(五)新闻修改
用文本+ASP打造新闻发布系统(四)新闻删除
用文本+ASP打造新闻发布系统(三)新闻列表显示
用文本+ASP打造新闻发布系统(二)新闻添加
ASP作的剪包锤游戏
ASP注册表项目修改
构建稳定的服务器端组件的七个步骤

关于客户端用ASP参生报表(高级篇)


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 27 ::
收藏到网摘: n/a

  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="<