如何在 grails 控制器中找到我的 servlet 的当前目录位置？（或 java servlet）
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How can I find the current directory location of my servlet in grails controller? (or java servlet)
提问by Atharva Johri
I am running running a webapp in tomcat 7, and I am trying to upload images into the webapps/{webappname}/images folder via a grails controller (similar to a java servlet). How do I get the path of this images folder in the servlet so I can store the uploaded files there?
我正在 tomcat 7 中运行一个 webapp，我试图通过 grails 控制器（类似于 java servlet）将图像上传到 webapps/{webappname}/images 文件夹。如何在 servlet 中获取此图像文件夹的路径，以便将上传的文件存储在那里？
采纳答案by Vijay Agrawal
you can use:
servletContext().getRealPath("/");to get the physical path to your webapp base directory
您可以使用：
servletContext().getRealPath("/");获取您的 webapp 基本目录的物理路径
However, be careful uploading anything into it as that area can usually get wiped out by re-deployment. It is generally advisable to upload data to a separate data-specific directory outside your webapp or to a persistent store (DB)
但是，将任何内容上传到其中时要小心，因为该区域通常会因重新部署而消失。通常建议将数据上传到 web 应用程序之外的单独的特定于数据的目录或持久存储 (DB)
