WebApp中的Java Maven参考文件 [英] Java Maven reference files in WebApp

问题描述

我正在尝试引用Java应用程序中的一些文件，这些文件将被复制到WAR中.

I'm trying to reference some files in a Java application that will be copied into a WAR.

我是Maven的新手，但基本上文件是

I'm new to Maven, but basically the files are

• 主要
  • Java
    • 包装
      • 课程----从这里开始
      • Main
        • Java
          • package
            • Class ---- FROM HERE
            • 资源
              • 文件夹----到这里
              • resources
                • folder ---- TO HERE

                我尝试了相对路径，例如

                I've tried a relative paths such as

                    File source = new File("../../../webapp/resources/folder");
                

                但是永远不能从类中访问该文件夹.

                But can never access that folder from the class.

                是否有替代方法?

                推荐答案

                始终记住，Maven的策略是convention over configuration.
                话虽如此，在您使用Maven的情况下，您需要遵循 Maven标准目录结构.
                创建一个像src/main/java这样的目录结构，并将您的包放在java文件夹中.
                对于任何资源，创建一个类似于src/main/resources的文件夹结构，然后将您的资源放在resources文件夹中.
                完成此操作后，假设在src/main/resources目录中有一个名为readme.txt的文件，那么您可以使用以下命令简单地访问此文件:
                File file = new File("readme.txt");
                Maven将始终将src/main/resources视为任何资源的根.
                另一个示例是，假设您在src/main/resources/somefolder/hello.txt中具有文件名hello.txt，然后可以使用以下文件进行访问:
                File file = new File("somefolder/readme.txt");

                Always remember that Maven's policy is convention over configuration.
                That being said, in your case, while using Maven, you need to follow the Maven Standard Directory Structure.
                Create a directory structure like src/main/java and put your package(s) in the java folder.
                For any resources, create a folder structure like src/main/resources and put your resources in the resources folder.
                After you do this, lets say that there is a file named readme.txt inside src/main/resources directory, then you can simple access this file using:
                File file = new File("readme.txt");
                Maven will always treat src/main/resources as the root for any resources.
                Another example is lets say you have a a file name hello.txt in src/main/resources/somefolder/hello.txt then you can access it using:
                File file = new File("somefolder/readme.txt");

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