ORACLE+Midas的远程数据模块配置过程[2004年4月18日 10:17]

王朝oracle·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ 服务端

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\1.Oracle中创建表

登陆system/manager

Create table Customer(

CustID integer,

CustName varchar(20),

Memo varchar(200)

);

2.BCB中File/New/Multitier

CoClassName:CustInfoSvr

3.控件Data Access/DataBase

DataBaseName: CUSTINFO

DriverName:ORACLE

LoginPrompt:false

Params:

SERVER NAME=ORCL

USER NAME=SYSTEM

PASSWORD=MANAGER

4.控件Data Access/UpdateSQL:

Name:CustInfoUpdateSQL

DeleteSQL:delete Customer where CustID=:old_CustID

InsertSQL:insert into Customer values (:CustID,:CustName,:Memo)

ModifySQL:update Customer set

CustID=:CustID, CustName=:CustNamename,Memo=:Memo where

CustID=:old_CustID

5.控件Data Access/TQuery:

Name:CustInfoQuery

UpdateObject:CustInfoUpdateSQL

UpdateMode:UpdateWhereKeyOnly

DatabaseName:CUSTINFO

6.控件Midas/DataSetProvider:

Name:CustInfoProvider

Options<

DataSet:CustInfoQuery

UpdateMode:upWhereKeyOnly

7.Main窗体中构造函数

CustInfoSvr = new TCustInfoSvr (Application);

if (FindWindow (NULL, "Borland Socket Server") == NULL)

WinExec (AnsiString (ExtractFilePath(Application->ExeName)

+ "Scktsrvr.exe").c_str(), SW_SHOW);

打开Borland Socket Server并添加端口27241

程序将通过BCB的Socket Server在这个端口发布服务

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ 客户端

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\1.File\New\Data Modules

Name:CustInfoData

2.Midas/SocketConnection

Name:CustInfoConnection

Address:127.0.0.1

Port:27241

ServerName:DataModuleSvr.CustInfoSvr

//注:需打开客户端和Socket Server才能选择ServerName

3.Midas/ClientDataSet

Name:CustInfoCds

RemoteServer:CustInfoConnection

ProviderName:CustInfoProvider

4.Data Access/DataSource

Name:CustInfoSource

DataSet:CustInfoCds

5.MainForm构造函数

try

{

CustInfoData->CustInfoCds->Open();

DataSource = CustInfoData->CustInfoSource;

DBGrid1->DataSource = CustInfoData->CustInfoSource;

}

catch(Exception &e)

{

ShowMessage(e.Message);

}

//配置结束

这个程序主要通过DataSetProvider来提供服务

还没有深入了解DCOM,不过我想这应该就是DCOM的一个应用

DataSetProvider只要提供一个数据集就可以提供远程调用

 
 
 
免责声明:本文为网络用户发布,其观点仅代表作者个人观点,与本站无关,本站仅提供信息存储服务。文中陈述内容未经本站证实,其真实性、完整性、及时性本站不作任何保证或承诺,请读者仅作参考,并请自行核实相关内容。
 
 
© 2005- 王朝網路 版權所有 導航