java - 如何动态获取文件夹路径

Question

我正在尝试列出项目路径中文件夹下的文件，我正在处理java Servlet

我这样做 Filefolder = new File("D:/Vivek/Touchpoint/MirrorImage/WebContent/Image/"); ，我想得到这个动态路径，因为将来我要将其部署在其他系统上，所以必须采取该路径

我已经尝试过InputStream input = getServletContext().getResourceAsStream("D:/Vivek/Touchpoint/MirrorImage/WebContent/Image");，但是从InputStream开始，我无法在之后循环

我正在做这样的整个代码

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
             String DirectoryName="";
                File folder = new File("D:/Vivek/Touchpoint/MirrorImage/WebContent/Image/"); // Setting the path manually 
                File[] listOfFiles = folder.listFiles(); //creating an array to loop through
            //  System.out.println(folder);

                for (int i = 0; i < listOfFiles.length; i++) {
                  if (listOfFiles[i].isFile()) {
                 //   System.out.println("File " + listOfFiles[i].getName());
                  } else if (listOfFiles[i].isDirectory()) {
                     test=listOfFiles[i].getName();
                     System.out.println("Directory " + DirectoryName);
                  }

                }


}

我的项目结构是这样的

我已尝试 System.out.println(new File(".").getAbsolutePath()); 但它打印 C:\Windows\system32\.

Answer 1

您可以尝试以下操作:

String path = request.getServletContext().getRealPath("/Image");
File folder = new File(path);
...