用java建立文件夾

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 isexists!");

}

else

{myFilePath.mkdir();System.out.println("新建目錄成功");

}

}

catch?? (Exception?? e)

{

System.out.println("新建目錄操作出錯");

e.printStackTrace();

}

}

}

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:創建文件夾成功！" );

} else? {

System.out.println( "err:創建文件夾失敗！" );

}

}

} 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???

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;

}

}

總結

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