java创建文件夹

public boolean delete() {
File delfile = new File("e:/vp/file/文档管理/基准数据/");
File[] files = delfile.listFiles();
for (int i = 0; i < files.length; i++) {
System.out.println(files[i].getName());
if (files[i].getName().lastIndexOf(".xls") != -1) {
files[i].delete();
}
}
return false;

}


java创建文件夹
主要是程序红色部分
用java建立文件夹
package test;
public class muluTest
{
public static void main(String[] args)
{
  muluTest mulutest = new muluTest();
  mulutest.newFolder("D:\\abcds");
}
public   void   newFolder(String   folderPath)
{
  String   filePath   =   folderPath;
  filePath   =   filePath.toString();   
  java.io.File   myFilePath   =   new   java.io.File(filePath);
  try
  {
   if(myFilePath.isDirectory())
   {
    System.out.println("the directory is exists!");
   }
   else
   {
    myFilePath.mkdir();
    System.out.println("新建目录成功");
   }
  }
  catch   (Exception   e)
  {
   System.out.println("新建目录操作出错");
   e.printStackTrace();
  }
}
}


java创建文件夹，文件；删除文件夹，文件
package  ifpre.web;

import  gxdmif.GXStringUtil;

import  java.io.DataOutputStream;
import  java.io.File;
import  java.io.FileOutputStream;
import  java.io.InputStream;

import  org.springframework.web.multipart.MultipartFile;

public   class  SaveFile   {
     public   boolean  save(String path, MultipartFile file)  throws  Exception   {
        GXStringUtil gx  =   new  GXStringUtil();
         boolean  result  =   false ;
        File dirFile  = null ;
         try  {
            dirFile  =   new  File(path);
             if ( ! (dirFile.exists())  &&   ! (dirFile.isDirectory()))  {
                 boolean  creadok  =  dirFile.mkdirs();
                 if (creadok)  {
                    System.out.println( " ok:创建文件夹成功！ " );
                } else  {
                    System.out.println( " err:创建文件夹失败！ " );                   
                }
            }
         } catch (Exception e)  {
            e.printStackTrace();
            System.out.println(e);
             return   false ;
        }
          if  (file  !=   null   &&   ! file.isEmpty())   {
            String fullPath  =  path  +  System.getProperty( " file.separator " )
                     +  gx.netStringToGBK(file.getOriginalFilename());
            DataOutputStream out  =   null ;
            InputStream is  =   null ;
             try    {
                out  =   new  DataOutputStream( new  FileOutputStream(fullPath));
                is  =  file.getInputStream();
                 byte [] buffer  =   new   byte [ 1024 ];
                 while  (is.read(buffer)  >   0 )   {
                    out.write(buffer);
                }
             }   finally    {
                 if  (is  !=   null )   {
                    is.close();
                }
                  if  (out  !=   null )   {
                    out.close();
                }
            }
            result  =   true ;
        }
         return  result;
    }

      public   boolean  delete(String path, MultipartFile file)  throws  Exception   {
        GXStringUtil gx  =   new  GXStringUtil();
         boolean  result  =   false ;
         if  (file  !=   null   &&   ! file.isEmpty())   {
            String fullPath  =  path  +  System.getProperty( " file.separator " )
                     +  gx.netStringToGBK(file.getOriginalFilename());
             try    {
                File file2  =   new  File(fullPath);
                file2.delete();
                result  =   true ;
            }   catch  (Exception e)   {
                e.printStackTrace();
                result  =   false ;
            }
        }
         return  result;
    }
   
     public     boolean    deleteFolder(File   folder)     { 
         boolean  result  =   false ;
         try  {
              String   childs[]    =    folder.list(); 
               if    (childs    ==     null     ||    childs.length    <=     0 )     { 
                         if (folder.delete())  {
                            result  =   true ;
                        }
               }   else  {
                   for    ( int    i    =     0 ;   i    <    childs.length;   i ++ )     { 
                          String   childName    =    childs[i]; 
                          String   childPath    =  
                              folder.getPath()    +    File.separator    +    childName; 
                          File   filePath    =     new    File(childPath); 
                           if    (filePath.exists()    &&    filePath.isFile())     {
                                 if (filePath.delete())  {
                                    result  =   true ;
                                } else  {
                                    result  =   false ;
                                     break ;
                                }
                          }  
                           else     if    (filePath.exists()    &&    filePath.isDirectory())     { 
                                 if (deleteFolder(filePath))  {
                                    result  =   true ;
                                } else  {
                                    result  =   false ;
                                     break ;
                                }
                          }  
                  }
                }
      
              folder.delete(); 
          } catch (Exception e)  {
              e.printStackTrace();
              result  =   false ;
          }
         return  result;
    }
}