java 读取文件 java读取某个文件夹下的所有文件实例代码

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.File;

public class ReadFile {
    public ReadFile() {
    }
    /**
     * 读取某个文件夹下的所有文件
     */
    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("name=" + file.getName());

            } else if (file.isDirectory()) {
                System.out.println("文件夹");
                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("name=" + readfile.getName());

                    } else if (readfile.isDirectory()) {
                        readfile(filepath + "\\" + filelist[i]);
                    }
                }

            }

        } catch (FileNotFoundException e) {
            System.out.println("readfile()  Exception:" + e.getMessage());
        }
        return true;
    }

    /**
     * 删除某个文件夹下的所有文件夹和文件
     */
    
    
    /*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("删除文件成功");
                    } 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("e:/videos");
            // deletefile("D:/file");
        } catch (FileNotFoundException ex) {
        } catch (IOException ex) {
        }
        System.out.println("ok");
    }

}