我需要根据某些变量( 文件名、 坏文件名、 装入表格等) 创建一个控制文件( 用于 SQLLoader ) 。
现在,我有一个在 java 中创建文件并运行良好的方法。 当我必须修改控制文件的结构时, 我的问题就会出现。 我需要改变这个在 java 源代码中的代码, 编译, 取消前一个应用程序, 部署新的应用程序, 仅仅为了改变控制文件的结构 。
我在想,我是否有办法来制作一个模板, 在那里我只是通过变量(如上所述), 但在 Java之外,让我们说某种xml之类的东西, 所以我只是换个“模板”和我的应用程序, 填充变量。
In one of our applications we generate the control file from code (in our case C#, but that doesn t matter) Create the file from a template (outside of your app), fill in the variables and have your application copy it to the place where SQLLoader expects it. Only thing you need is for your java app to have permission to write to that directory.
如果这是一个 Java 网络应用程序, 这有点棘手, 因为从 Webap 写入文件可能会带来安全风险 。
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