Analysis of the principle of the FS EXTRA framework in the Java library

The FS EXTRA framework is a Java class library for providing additional functions and tools for file systems.In this article, we will analyze the working principle of the FS Extra framework and provide some Java code examples. The FS EXTRA framework is based on the functional construction of the native file system of Java. By packaging and expanding these functions, it provides more convenient methods and functions to simplify the file system operation. The core principle of the framework is to perform various operations by calling the Java file system API.Below are analysis of the functions and principles of some common FS Extra frameworks: 1. File operation: The FS EXTRA framework provides rich file operation methods, such as copying, moving, renamed, deleting files, etc.The principle of these operations is to call the Java file system API. By providing more concise interfaces and parameters, the file operation is more convenient. // Use FS EXTRA framework to copy files import fs.extra.*; try { Fse.copy (SourceFile, DestinationFile); // Copy file to the target path } catch (IOException e) { e.printStackTrace(); } 2. Folder operation: The FS EXTRA framework provides many operations for folders, such as creating folders, deleting folders, and obtaining folder content.These operations provide a convenient way to operate files by encapsulating the Java file system API. // Use the FS Extra framework to create a folder import fs.extra.*; try { Fse.createDirectory (DirectoryPath); // Create a folder } catch (IOException e) { e.printStackTrace(); } 3. File search: The FS EXTRA framework also provides the function of file search. Users can search in the file system according to the specified conditions.This function traverses the file tree by recursively and is implemented according to the conditions. // Use the FS EXTRA framework to search for files import fs.extra.*; List <file> MATCHEDFILES = FSE.SEARCHFILES (RootDirectory, FileEXTENSION); // Search for files that specify the patience name. for (File file : matchedFiles) { System.out.println(file.getAbsolutePath()); } 4. File information acquisition: The FS EXTRA framework also provides the function of obtaining files and folder information, such as obtaining file size, obtaining the final modification time, etc.These features provide a convenient method to obtain file information by calling the Java file system API. // Use the FS Extra framework to get the file size import fs.extra.*; try { long filesize = fse.getFilesize (filepath); // Get the file size System.out.println ("File size:" + Filesize + "byte"); } catch (IOException e) { e.printStackTrace(); } In summary, the FS Extra framework provides a more convenient and efficient file system operation method by packaging and expanding the file system function of the Java.By calling related APIs, users can easily perform the operation, search and information acquisition of files and folders.At the same time, the framework also has good scalability and can be customized and expanded according to specific needs.