FileUtilsツールクラス(byte[]Fileとの相互転送フォルダをクリアファイル名を取得)
3739 ワード
FileUtilsツールクラス(byte[]Fileとの相互転送フォルダをクリアファイル名を取得) package com.utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**
* file by CHENYB date 2019-08-19
*/
public class File{
private static final Logger logger = LoggerFactory.getLogger(File.class);
/**
* byte
*/
public static byte[] getBytes(String filePath){
byte[] buffer = null;
try {
File file = new File(filePath);
FileInputStream fis = new FileInputStream(file);
ByteArrayOutputStream bos = new ByteArrayOutputStream(8192);
byte[] b = new byte[8192];
int n;
while ((n = fis.read(b)) != -1) {
bos.write(b, 0, n);
}
fis.close();
bos.close();
buffer = bos.toByteArray();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return buffer;
}
/**
* byte ,
*/
public static void getFile(byte[] bfile, String filePath,String fileName) {
BufferedOutputStream bos = null;
FileOutputStream fos = null;
File file = null;
try {
File dir = new File(filePath);
if(!dir.exists()&&dir.isDirectory()){//
dir.mkdirs();
}
file = new File(filePath+"\\"+fileName);
fos = new FileOutputStream(file);
bos = new BufferedOutputStream(fos);
bos.write(bfile);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (bos != null) {
try {
bos.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
if (fos != null) {
try {
fos.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
/**
*
* @param path
* @return
*/
public static boolean delAllFile(String path) {
boolean flag = false;
File file = new File(path);
if (!file.exists()) {
return flag;
}
if (!file.isDirectory()) {
return flag;
}
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]);//
flag = true;
}
}
return flag;
}
/**
* .
*/
public static String getSuffixName(MultipartFile file){
String originalFilename = file.getOriginalFilename();
return originalFilename.substring( originalFilename.lastIndexOf( "." ),originalFilename.length() );
}
/**
*
*/
public static String getFileName(MultipartFile file){
String originalFilename = file.getOriginalFilename();
return originalFilename.substring( 0, originalFilename.lastIndexOf( "." ));
}
}
Mr.chenybエッセイ記録、自分で勉強しやすい
2019-08-19
package com.utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**
* file by CHENYB date 2019-08-19
*/
public class File{
private static final Logger logger = LoggerFactory.getLogger(File.class);
/**
* byte
*/
public static byte[] getBytes(String filePath){
byte[] buffer = null;
try {
File file = new File(filePath);
FileInputStream fis = new FileInputStream(file);
ByteArrayOutputStream bos = new ByteArrayOutputStream(8192);
byte[] b = new byte[8192];
int n;
while ((n = fis.read(b)) != -1) {
bos.write(b, 0, n);
}
fis.close();
bos.close();
buffer = bos.toByteArray();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return buffer;
}
/**
* byte ,
*/
public static void getFile(byte[] bfile, String filePath,String fileName) {
BufferedOutputStream bos = null;
FileOutputStream fos = null;
File file = null;
try {
File dir = new File(filePath);
if(!dir.exists()&&dir.isDirectory()){//
dir.mkdirs();
}
file = new File(filePath+"\\"+fileName);
fos = new FileOutputStream(file);
bos = new BufferedOutputStream(fos);
bos.write(bfile);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (bos != null) {
try {
bos.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
if (fos != null) {
try {
fos.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
/**
*
* @param path
* @return
*/
public static boolean delAllFile(String path) {
boolean flag = false;
File file = new File(path);
if (!file.exists()) {
return flag;
}
if (!file.isDirectory()) {
return flag;
}
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]);//
flag = true;
}
}
return flag;
}
/**
* .
*/
public static String getSuffixName(MultipartFile file){
String originalFilename = file.getOriginalFilename();
return originalFilename.substring( originalFilename.lastIndexOf( "." ),originalFilename.length() );
}
/**
*
*/
public static String getFileName(MultipartFile file){
String originalFilename = file.getOriginalFilename();
return originalFilename.substring( 0, originalFilename.lastIndexOf( "." ));
}
}