java创建文件夹
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 isexists!");
}
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;
}
}
