package io;

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

 

public class FileReadDemo {

 byte bytes [];
 InputStream fi;
 File[] files;
  public static void main(String[] args) {
   File file = new File("D:/CCshare/workplace/test");
   FileReadDemo fr = new FileReadDemo();
   fr.doDirectory(file);
    
 }
  
  /**
   * @param file 递归循环文件夹，如果是文件就输出
   */
  private void doDirectory(File file) {
   
    if (file.isFile()) {
     doFile(file);
    }else{
      files = file.listFiles(); 
                  for (File f : files) { 
        doDirectory(f);
          
                 } 
   }
  }
  
  private void doFile(File file) {
   try {
    fi = new FileInputStream(file);
    int len = fi.available();
    bytes = new byte[len];
    int j = fi.read(bytes);
    System.out.println(new String(bytes));
    
   } catch (FileNotFoundException e) {
    
    e.printStackTrace();
   } catch (IOException e) {
    
    e.printStackTrace();
   }

  }
   }