java文件和文件夹复制、删除、移动操作

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.InputStream;
import java.io.PrintWriter;

public  class  CopyFile  {  
   public  CopyFile()  {  
   }  
 
   /**  
     *  新建目录  
     *  @param  folderPath  String  如  c:/fqf  
     *  @return  boolean  
     */  
   public  void  newFolder(String  folderPath)  {  
       try  {  
           String  filePath  =  folderPath;  
           filePath  =  filePath.toString();  
           java.io.File  myFilePath  =  new  java.io.File(filePath);  
           if  (!myFilePath.exists())  {  
               myFilePath.mkdir();  
           }  
       }  
       catch  (Exception  e)  {  
           System.out.println("新建目录操作出错");  
           e.printStackTrace();  
       }  
   }  
 
   /**  
     *  新建文件  
     *  @param  filePathAndName  String  文件路径及名称  如c:/fqf.txt  
     *  @param  fileContent  String  文件内容  
     *  @return  boolean  
     */  
   public  void  newFile(String  filePathAndName,  String  fileContent)  {  
 
       try  {  
           String  filePath  =  filePathAndName;  
           filePath  =  filePath.toString();  //取的路径及文件名
           File  myFilePath  =  new  File(filePath);  
           /**如果文件不存在就建一个新文件*/
           if  (!myFilePath.exists())  {  
               myFilePath.createNewFile();  
           }  
           FileWriter  resultFile  =  new  FileWriter(myFilePath);  //用来写入字符文件的便捷类, 在给出 File 对象的情况下构造一个 FileWriter 对象
           PrintWriter  myFile  =  new  PrintWriter(resultFile);  //向文本输出流打印对象的格式化表示形式,使用指定文件创建不具有自动行刷新的新 PrintWriter。
           String  strContent  =  fileContent;  
           myFile.println(strContent);  
           resultFile.close();  
 
       }  
       catch  (Exception  e)  {  
           System.out.println("新建文件操作出错");  
           e.printStackTrace();  
 
       }  
 
   }  
 
   /**  
     *  删除文件  
     *  @param  filePathAndName  String  文件路径及名称  如c:/fqf.txt  
     *  @param  fileContent  String  
     *  @return  boolean  
     */  
   public  void  delFile(String  filePathAndName)  {  
       try  {  
           String  filePath  =  filePathAndName;  
           filePath  =  filePath.toString();  
           java.io.File  myDelFile  =  new  java.io.File(filePath);  
           myDelFile.delete();  
 
       }  
       catch  (Exception  e)  {  
           System.out.println("删除文件操作出错");  
           e.printStackTrace();  
 
       }  
 
   }  
 
   /**  
     *  删除文件夹  
     *  @param  filePathAndName  String  文件夹路径及名称  如c:/fqf  
     *  @param  fileContent  String  
     *  @return  boolean  
     */  
   public  void  delFolder(String  folderPath)  {  
       try  {  
           delAllFile(folderPath);  //删除完里面所有内容  
           String  filePath  =  folderPath;  
           filePath  =  filePath.toString();  
           java.io.File  myFilePath  =  new  java.io.File(filePath);  
           myFilePath.delete();  //删除空文件夹  
 
       }  
       catch  (Exception  e)  {  
           System.out.println("删除文件夹操作出错");  
           e.printStackTrace();  
 
       }  
 
   }  
 
   /**  
     *  删除文件夹里面的所有文件  
     *  @param  path  String  文件夹路径  如  c:/fqf  
     */  
   public  void  delAllFile(String  path)  {  
       File  file  =  new  File(path);  
       if  (!file.exists())  {  
           return;  
       }  
       if  (!file.isDirectory())  {  
           return;  
       }  
       String[]  tempList  =  file.list();  
       File  temp  =  null;  
       for  (int  i  =  0;  i  <  tempList.length;  i++)  {  
           if  (path.endsWith(File.separator))  {  
               temp  =  new  File(path  +  tempList[i]);  
           }  
           else  {  
               temp  =  new  File(path  +  File.separator  +  tempList[i]);  
           }  
           if  (temp.isFile())  {  
               temp.delete();  
           }  
           if  (temp.isDirectory())  {  
               delAllFile(path+"/"+  tempList[i]);//先删除文件夹里面的文件  
               delFolder(path+"/"+  tempList[i]);//再删除空文件夹  
           }  
       }  
   }  
 
   /**  
     *  复制单个文件  
     *  @param  oldPath  String  原文件路径  如：c:/fqf.txt  
     *  @param  newPath  String  复制后路径  如：f:/fqf.txt  
     *  @return  boolean  
     */  
   public  void  copyFile(String  oldPath,  String  newPath)  {  
       try  {  
//           int  bytesum  =  0;  
           int  byteread  =  0;  
           File  oldfile  =  new  File(oldPath);  
           if  (oldfile.exists())  {  //文件存在时  
               InputStream  inStream  =  new  FileInputStream(oldPath);  //读入原文件 
               FileOutputStream  fs  =  new  FileOutputStream(newPath);  
               byte[]  buffer  =  new  byte[1444];  
//               int  length;  
               while  (  (byteread  =  inStream.read(buffer))  !=  -1)  {  
//                   bytesum  +=  byteread;  //字节数  文件大小  
//                   System.out.println(bytesum);  
                   fs.write(buffer,  0,  byteread);  
               }  
               inStream.close();  
           }  
       }  
       catch  (Exception  e)  {  
           System.out.println("复制单个文件操作出错");  
           e.printStackTrace();  
 
       }  
 
   }  
 
   /**  
     *  复制整个文件夹内容  
     *  @param  oldPath  String  原文件路径  如：c:/fqf  
     *  @param  newPath  String  复制后路径  如：f:/fqf/ff  
     *  @return  boolean  
     */  
   public  void  copyFolder(String  oldPath,  String  newPath)  {  
 
       try  {  
           (new  File(newPath)).mkdirs();  //如果文件夹不存在  则建立新文件夹  
           File  a=new  File(oldPath);  
           String[]  file=a.list();  
           File  temp=null;  
           for  (int  i  =  0;  i  <  file.length;  i++)  {  
               if(oldPath.endsWith(File.separator)){  
                   temp=new  File(oldPath+file[i]);  
               }  
               else{  
                   temp=new  File(oldPath+File.separator+file[i]);  
               }  
 
               if(temp.isFile()){  
                   FileInputStream  input  =  new  FileInputStream(temp);  
                   FileOutputStream  output  =  new  FileOutputStream(newPath  +  "/"  + 
                           (temp.getName()).toString());  
                   byte[]  b  =  new  byte[1024  *  5];  
                   int  len;  
                   while  (  (len  =  input.read(b))  !=  -1)  {  
                       output.write(b,  0,  len);  
                   }  
                   output.flush();  
                   output.close();  
                   input.close();  
               }  
               if(temp.isDirectory()){//如果是子文件夹  
                   copyFolder(oldPath+"/"+file[i],newPath+"/"+file[i]);  
               }  
           }  
       }  
       catch  (Exception  e)  {  
           System.out.println("复制整个文件夹内容操作出错");  
           e.printStackTrace();  
 
       }  
 
   }  
 
   /**  
     *  移动文件到指定目录  
     *  @param  oldPath  String  如：c:/fqf.txt  
     *  @param  newPath  String  如：d:/fqf.txt  
     */  
   public  void  moveFile(String  oldPath,  String  newPath)  {  
       copyFile(oldPath,  newPath);  
       delFile(oldPath);  
 
   }  
 
   /**  
     *  移动文件到指定目录  
     *  @param  oldPath  String  如：c:/fqf.txt  
     *  @param  newPath  String  如：d:/fqf.txt  
     */  
   public  void  moveFolder(String  oldPath,  String  newPath)  {  
       copyFolder(oldPath,  newPath);  
       delFolder(oldPath);  
 
   }  
   public static void main(String[] args){
    CopyFile file = new CopyFile();
//    file.newFolder("newFolder22222");
    file.delAllFile("E:/1");
   }
// 拷贝文件
   private void copyFile2(String source, String dest) {
   try {
   File in = new File(source);
   File out = new File(dest);
   FileInputStream inFile = new FileInputStream(in);
   FileOutputStream outFile = new FileOutputStream(out);
   byte[] buffer = new byte[10240];
   int i = 0;
   while ((i = inFile.read(buffer)) != -1) {
   outFile.write(buffer, 0, i);
   }//end while
   inFile.close();
   outFile.close();
   }//end try
   catch (Exception e) {

   }//end catch
   }//end copyFile

}