java實現讀取、刪除文件夾下的文件
package test.com; import java.io.File;import java.io.FileNotFoundException;import java.io.IOException; public class ReadFile { public ReadFile() { } /** * 讀取某個文件夾下的所有文件*/ public static boolean readfile(String filepath) throws FileNotFoundException, IOException { try { File file = new File(filepath); if (!file.isDirectory()) {// System.out.println("文件");/ / System.out.println("path=" + file.getPath());// System.out.println("absolutepath=" + file.getAbsolutePath()); System.out.println(file.getName() ); } else if (file.isDirectory()) { String[] filelist = file.list(); for (int i = 0; i < filelist.length; i++) { File readfile = new File(filepath + "/ /" + filelist[i]); if (!readfile.isDirectory()) {// System.out.println("path=" + readfile.getPath());// System.out.println("absolutepath= "// + readfile.getAbsolutePath()); System.out.println(readfile.getName()); } else if (readfile.isDirectory()) { readfile(filepath + "//" + filelist[i]); } } } } catch (FileNotFoundException e) { System.out.println("readfile() Exception:" + e.getMessage()); } return true; } /** * 刪除某個文件夾下的所有文件夾和文件*/ /*public static boolean deletefile(String delpath) throws FileNotFoundException, IOException { try { File file = new File(delpath); if (!file.isDirectory()) { System.out.println("1") ; file.delete(); } else if (file.isDirectory()) { System.out.println("2"); String[] filelist = file.list(); for (int i = 0; i < filelist .length; i++) { File delfile = new File(delpath + "//" + filelist[i]); if (!delfile.isDirectory()) { System.out.println("path=" + delfile.getPath( )); System.out.println("absolutepath=" + delfile.getAbsolutePath()); System.out.println("name=" + delfile.getName()); delfile.delete(); System.out.println ("刪除文件成功"); } else if (delfile.isDirectory()) { deletefile(delpath + "//" + filelist[i]); } } file.delete(); } } catch (FileNotFoundException e) { System.out.println("deletefile() Exception:" + e.getMessage()); } return true; }*/ public static void main(String[] args) { try { readfile("C://Users/ /SW//Desktop//SKJ_H25正//004_RCAG//003_SKJ"); // deletefile("D:/file"); } catch (FileNotFoundException ex) { } catch (IOException ex) { } System.out.println ("ok"); } }方法二：
package otherstudy;import java.io.File;import java.io.FileNotFoundException;import java.io.IOException;/** * @ClassName: TestReadFile * @CreateTime: Aug 1, 2014 11:42:44 AM * @Author: mayi * @Description: 讀取和刪除文件夾下的所有文件* */public class TestReadFile {/** * 獲取工程的WebRoot的絕對路徑* @return */String getProjectPath(){//得到形如"/ d:/${workspace}/${projectName}/WebRoot/WEB-INF/classes/"的路徑String path=this.getClass().getResource("/").getPath(); //從路徑字符串中取出工程路徑path=path.substring(1, path.indexOf("WEB-INF/classes")); System.out.println("工程路徑："+path); return path;}/** * @ param args */public static void main(String[] args) {TestReadFile trf=new TestReadFile();String xmlPath = trf.getProjectPath()+ "testDocs";try {readAllFile(xmlPath);} catch (FileNotFoundException e) { e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}/** * 讀取指定路徑文件夾下的所有文件* @param filepath * @return * @throws FileNotFoundException * @throws IOException */public static boolean readAllFile(String filepath)throws FileNotFoundException, IOException {try {File file = new File(filepath);if (!file.isDirectory()) {System.out.println("/n文件信息：") ;System.out.println("/t相對路徑=" + file.getPath());System.out.println("/t絕對路徑=" + file.getAbsolutePath());System.out.println(" /t文件全名=" + file.getName());} else if (file.isDirectory()) {System.out.println("/n文件夾內文件列表信息：");File[] fileList = file.listFiles();for (int i = 0; i < fileList.length; i++) {File readfile = fileList[i];if (!readfile.isDirectory()) {System.out.println("/n/ t相對路徑=" + readfile.getPath());System.out.println("/t絕對路徑=" + readfile.getAbsolutePath());System.out.println("/t文件全名=" + readfile .getName());} else if (readfile.isDirectory()) {readAllFile(fileList[i].getPath());}}}} catch (FileNotFoundException e) {System.out.println("readfile() Exception :" + e.getMessage());}return true;}/** * 刪除某個文件夾下的所有文件夾和文件* @param delpath * @return * @throws FileNotFoundException * @throws IOException */public static boolean deleteFile(String delpath)throws FileNotFoundException, IOException {try {File file = new File(delpath);if (!file.isDirectory()) {System.out.println("1");file.delete();} else if (file.isDirectory()) {System.out.println("2");File[] fileList = file.listFiles();for (int i = 0; i < fileList.length; i++) {File delfile = fileList[i];if (!delfile.isDirectory()) {System.out.println("相對路徑=" + delfile.getPath());System.out.println("絕對路徑=" + delfile.getAbsolutePath ());System.out.println("文件全名=" + delfile.getName());delfile.delete();System.out.println("刪除文件成功");} else if (delfile.isDirectory ()) {deleteFile(fileList[i].getPath());}}file.delete();}} catch (FileNotFoundException e) {System.out.println("deletefile() Exception:" + e.getMessage( ));}return true;}}以上所述就是本文的全部內容了，希望大家能夠喜歡。