在 Grails 中放置文本文件的位置以及如何获取路径 [英] Where to put a text file in Grails, and how to get the path

问题描述

我需要将 .txt 文件读入一个 groovy 类，以便逐行查询它.但我不确定我把它放在我的 grails 应用程序中的哪个文件夹中，以及如何获取它的路径?

I need to read in a .txt file into a groovy class in order to interrogate it line by line. But I am not sure what folder I put it into in my grails app, and how to get the path to it?

到目前为止，我已经尝试将它放在 src 下以及一个新文件夹 web-app/txt

So far I have tried placing it under src and also in a new folder web-app/txt

我已经尝试了以下内容来阅读它

and I have tried the the following to read it in

fileIn = new File('/lexicon.txt').text 

和

fileIn = new File('txt/lexicon.txt').text

无济于事.

任何身体有任何指针?

推荐答案

Grails 是一个 Java Web 应用程序，所以它会被编译成一个单独的文件 .war，包含所有文件/类/等里面.大多数 Web 容器确实会解包 war，但没有任何保证，因此使用 File 将此文件作为文件访问并不是一个好主意.

Grails is a Java Web Application, so it will be compiled into a sigle file .war, with all files/classes/etc inside. Most Web containers do unpack war, but there are no any guaranteee, so it's not a good idea to use File to access this file as a file.

顺便说一句，你可以把你的文件放到grails-app/conf中，在这种情况下，它会被放到classpath中，你就可以访问它了通过使用:

Btw, you can place your file into grails-app/conf, at this case it will be placed into classpath, and you'll be able to access it by using:

InputStream lexicon = this.class.classLoader.getResourceAsStream('lexicon.txt')

您也可以将此文件放入一个子目录中，例如 grails-app/conf/data 并将其加载为 ***.getResourceAsStream('data/lexicon.txt')

You could also put this file into a subdirectory, like grails-app/conf/data and load it as ***.getResourceAsStream('data/lexicon.txt')

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