All file names in the Java scan folder.

All file names in the Java scan folder.

MIS content project system, based on document Resource Management, needs to scan all the files under a folder, the required code implementation.

Package q. test. filepath; import java. io. file; import java. util. arrayList; import java. util. using list; import q. test. filepath. exception. scanFilesException;/*** @ author */public class folderfile={ private static ArrayList <Object> scanFiles = new ArrayList <Object> (); /** implement the secure list **/private static secure list <File> queueFiles = new secure list <File> ();/*** TODO: recursively scans the specified files in the specified folder *@ Return ArrayList <Object> * @ author * @ time November 3, 2017 */public static ArrayList <Object> ** scanFilesWithRecursion ** (String folderPath) throws ScanFilesException {ArrayList <String> dirctorys = new ArrayList <String> (); File directory = new File (folderPath); if (! Directory. isDirectory () {throw new ScanFilesException ('"' + folderPath + '"' + "input path is not a Directory, please input the right path of the Directory. ^_^... cmd_^ ");} if (directory. isDirectory () {File [] filelist = directory. listFiles (); for (int I = 0; I <filelist. length; I ++) {/** if it is a folder, go to the recursive scan folder **/if (filelist [I]. isDirectory () {// absolute path name string dirctorys. add (filelist [I]. getAbsolutePath ()); /** Recursively scan the following folder **/** scanFilesWithRecursion ** (filelist [I]. getAbsolutePath ();}/** non-Folder **/else {scanFiles. add (filelist [I]. getAbsolutePath () ;}} return scanFiles;}/***** TODO: scan all files under a specified folder in non-recursive mode * @ return ArrayList <Object> * @ param folderPath: folder path to be scanned * @ author * @ time November 3, 2017 */public static ArrayList <Object> scanFilesWithNoRecursion (String folderPath) throws ScanFilesException {F Ile directory = new File (folderPath); if (! Directory. isDirectory () {throw new ScanFilesException ('"' + folderPath + '"' + "input path is not a Directory, please input the right path of the Directory. ^_^... pai_^ ");} else {// first scan the first directory again File [] files = directory. listFiles (); // traverse the scanned file array. If it is a folder, put it into the sorted list and process it later for (int I = 0; I <files. length; I ++) {if (files [I]. isDirectory () {queueFiles. add (files [I]);} else {// temporarily put the file name in scanFiles for scan Files. add (files [I]. getAbsolutePath () ;}// if the program list is not empty, traverse the program list while (! QueueFiles. isEmpty () {// remove the first File headDirectory = queueFiles from the queue list. removeFirst (); File [] currentFiles = headDirectory. listFiles (); for (int j = 0; j <currentFiles. length; j ++) {if (currentFiles [j]. isDirectory () {// if it is still a folder, put it into the queue list queueFiles. add (currentFiles [j]);} else {scanFiles. add (currentFiles [j]. getAbsolutePath () ;}}} return scanFiles ;}}

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