DELPHI的趋势!DELPHI连JAVA中间键,在通过中间键连接DB2数据库!是否能够实现,请大家来交流交流,要求斑主把该话题放入专题!来者有分!!!^-^

ddvboy 2002-10-31 09:36:24

具体的说是用DELPHI做界面,连JAVA中间键,再通过JAVA中间键连接后台数据库!
我个人认为可以实现但速度会慢!
请大家提供资料或交流具体如何实现!
可以另外开贴给分!
有资料的请发到yueqingfen@163.com

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lb26 2002-12-20

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内存泄漏 2002-12-20

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Web Service 必将成为未来的趋势。

wjlsmail 2002-12-18

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Study

stevenpeng 2002-12-16

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黑夜中最亮的星是菩提 2002-12-16

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学习！关注

angui147 2002-12-15

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endure 2002-12-11

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当然可以实现.
用CORBA/J2EE/WEBSERVICES都可以做，要不然自己做个中间件也可以做，呵呵。
我的项目就是Delphi+VisiBroker/BES(corba/j2ee技术）+JB+Oracle+linux.
目前项目一期已经将近结束。
欢迎对分布式对象计算技术感兴趣的人与我联系laisz2002@163.com。

xuchunqiang 2002-11-23

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mrfanghansheng 2002-11-21

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论题很好！！帮你顶一下……

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sunseawf 2002-11-21

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UP,个人认为，是可行的！

badtou 2002-11-21

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ningzuoyun 2002-11-21

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我现在也在想用delphi做前台，weblogic做中间层服务器，数据库用oracle，我不知道如何让delphi连接weblogic ，我只知道用jbuilder + weblogic +oracle 的方案，

jshao 2002-11-17

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学习

KingVan 2002-11-16

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我就用Weblogic和Delphi作了一个Web Service的系统；
还可以！

tms68 2002-11-11

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http://www.kylecordes.com/story-103-windows-clients-java-servers.html

Possible Solutions:
Solution #1: Talk JRMP from Delphi
Implement the Java RMI JRMP protocol in Delphi. This will be nearly impossible, since it is built on Java object serialization. So there are various approaches you could take.

Solution #2: Java on the Client, use JNI
Run Java on the client as well, and use JNI to communicate between Delphi and Java, then Java to do the client side RMI. This defeated the goal of keeping the client lean, though... a Delphi thin client can run well on an old, slow machine with 32 meg of RAM, Java can't.

Solution #3: RMI-IIOP / CORBA
Some Java application servers can seamlessly (?) expose Java services (like EJBs) as CORBA objects. Borland has CORBA support available for Delphi. This will avoid the overhead of Java on the client, but is too vendor-specific for my tastes.

Solution #4: A Proxy on the server
Use a non-RMI way to communicate between the Delphi client and an extra "tier" at the server; this piece of middleware would communicate with Delphi using any of a number of methods, even a proprietary protocol. Then use JNI or other means to access the Java services on the same (server) machine. This could be done using ASTA or MIDAS, among others.

Solution #5: Web Services with SOAP
Expose the server-side services as web services via SOAP. Choose an application server which will automatically expose your EJBs this way, if possible. Then use any available way to make a Delphi client talk SOAP. PureSOAP and Microsoft's SOAP support are two possible ways. (This is really the most appealing choice to me, as of 2001.)

Solution #6: Homegrown web services
It's really not all that hard to write wrapper code that exposes your server services via HTTP requests with parameters, via XML strings, etc. Such a thing would not be language specific, so the server could be on one language, the client in another. This solution has some appeal in cases where you want the pieces to be tightly "wrapped up" and not exposes in anything as standard as SOAP for some reason.

wbw88 2002-11-11