java操作文件

 package usefile;

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

public class ReadFile {
public ReadFile() {}

/**
* 删除某个文件夹下的所有文件夹和文件
* @param delpath String
* @throws FileNotFoundException
* @throws IOException
* @return boolean
*/
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;
  }
  
  /**
  * 删除某个文件夹下的所有文件夹和文件
  * @param delpath String
  * @throws FileNotFoundException
  * @throws IOException
  * @return boolean
  */
  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;
  }
  
  public static void main(String[] args) {
  try {
  readfile("D:/file");
  //deletefile("D:/file");
  }
  catch (FileNotFoundException ex) {
  }
  catch (IOException ex) {
  }
  System.out.println("ok");
  }
  
  }