Question

I m working on a Java application which I want to be available over the internet. However, some requirements put me in a difficult situation. That s why I would appreciate some input of experienced programmers. The situation is as follows:

I have a basic webhost, with

a mysql database
an open ftp-port (21)
an open http-port (80)

无

an open mysql-port (3306)
an open ssh-port (22)

现在,我想建立一个能够做到以下几点的申请(Java Webstart OR Javapurt):

Be available for multiple users over the internet
Communicate with mysql database
Exchange documents between local file system and webhost

现在你们看到了问题:

When running a Java Web Start application, it seems impossible to connect to the mysql-database because the mysql-port is closed.
When running a Java Applet, it seems I cannot get access to the files in the local file system.

是否有人提出这一问题?

提前感谢!

纽约总部

Answer 1

我不建议这种设想。

有了资料和网络开端,你就会向用户披露数据库用户名称和密码。你可以混淆这些内容,但可以改变这些内容。

相反,你应创建适当的网络服务,以调解数据库与客户的联系。

Answer 2

无论是网络启动还是果 Apple,都无法与数据库联系。事实上,如果这些申请可能非常糟糕,因为这样,这些申请就不得不包含亚洲开发银行的口号,而所有能够申请的人都可以从这些口号中提取这些口号,并给你的银行造成严重破坏。这可能是东道方不向互联网开放这一港口的原因。

为了使用该数据库,你不得不在网络厅管理某种中层网络服务。

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