download：新版 Spring Boot 双版本 (1.5/2.1) 打造企业级微信点餐零碎
*
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*/
package datei.steuern;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
- @author s.watson
*/
public class FileTools {
public FileTools() {
}
/**
- formatPath 本义文件目录
* - @param path
- @return
*/
public static String formatPath(String path) {
return path.replaceAll("\\\\", "/");}
/**
- combainPath 文件门路合并
* - @param eins
- @param zwei
- @return
*/
private static String combainPath(String eins, String zwei) {
String dori = "";
eins = null == eins ? "" : formatPath(eins);
zwei = null == zwei ? "" : formatPath(zwei);
if (!eins.endsWith("/") && zwei.indexOf("/") != 0) {dori = eins + "/" + zwei;} else {dori = (eins + zwei).replaceAll("//", "/");
}
return dori;}
/**
- list2Array 列表转换数组
* - @param list
- @return
*/
private static String[] list2Array(List list) {
String array[] = (String[]) list.toArray(new String[list.size()]);
return array;}
/**
- cp 复制文件
* - @param source
- @param destination
- @param loop
- @return
*/
public static List<File> cp(String source, String destination, boolean loop) {
List<File> list = new ArrayList();
try {File srcFile = new File(source);
File desFile = new File(destination);
list.addAll(cp(srcFile, desFile, loop));
} catch (Exception ex) {j2log(null, null, ex);
}
return list;}
/**
- cp 复制文件
* - @param source
- @param destination
- @param loop
- @return
*/
public static List<File> cp(File source, File destination, boolean loop) {
List<File> list = new ArrayList();
try {if (!source.exists() || source.isDirectory()) {throw new FileNotFoundException();
}
list.add(cp(source, destination));
if (loop) {String[] subFile = source.list();
for (String subPath : subFile) {String src = combainPath(source.getPath(), subPath);// 子文件原文件门路
String des = combainPath(destination.getPath(), subPath);// 子文件指标门路
File subfile = new File(src);
if (subfile.isFile()) {list.add(cp(src, des));
} else if (subfile.isDirectory() && loop) {list.addAll(cp(src, des, loop));
}
}
}
} catch (Exception ex) {j2log(null, null, ex);
}
return list;}
/**
- cp 单文件复制文件
* - @param source
- @param destination
- @return
*/
public static File cp(String source, String destination) {
File desFile = null;
try {File srcFile = new File(source);
desFile = new File(destination);
desFile = cp(srcFile, desFile);
} catch (Exception ex) {j2log(null, null, ex);
}
return desFile;}
/**
- cp 单文件复制文件
* - @param source
- @param destination
- @return
*/
public static File cp(File source, File destination) {
FileInputStream in = null;
FileOutputStream out = null;
FileChannel inc = null;
FileChannel outc = null;
try {if (!source.exists() || source.isDirectory()) {throw new FileNotFoundException();
}
if (source.getPath().equals(destination.getPath())) {return source;}
long allbytes = du(source, false);
if (!destination.exists()) {destination.createNewFile();
}
in = new FileInputStream(source.getPath());
out = new FileOutputStream(destination);
inc = in.getChannel();
outc = out.getChannel();
ByteBuffer byteBuffer = null;
long length = 2097152;// 根本大小，默认 2M
long _2M = 2097152;
while (inc.position() < inc.size()) {if (allbytes > (64 * length)) {// 如果文件大小大于 128M 缓存改为 64M
length = 32 * _2M;
} else if (allbytes > (32 * length)) {// 如果文件大小大于 64M 缓存改为 32M
length = 16 * _2M;
} else if (allbytes > (16 * length)) {// 如果文件大小大于 32M 缓存改为 16M
length = 8 * _2M;
} else if (allbytes > (8 * length)) {// 如果文件大小大于 16M 缓存改为 8M
length = 4 * _2M;
} else if (allbytes > (4 * length)) {// 如果文件大小大于 8M 缓存改为 4M
length = 2 * _2M;
} else if (allbytes > (2 * length)) {// 如果文件大小大于 4M 缓存改为 2M
length = _2M;
} else if (allbytes > (length)) {// 如果文件大小大于 2M 缓存改为 1M
length = _2M / 2;
} else if (allbytes < length) {// 如果文件小于根本大小，间接输入
length = allbytes;
}
allbytes = inc.size() - inc.position();
byteBuffer = ByteBuffer.allocateDirect((int) length);
inc.read(byteBuffer);
byteBuffer.flip();
outc.write(byteBuffer);
outc.force(false);
}
} catch (Exception ex) {j2log(null, null, ex);
} finally {
try {if (null != inc) {inc.close();
}
if (null != outc) {outc.close();
}
if (null != in) {in.close();
}
if (null != out) {out.close();
}
} catch (Exception ex) {j2log(null, null, ex);
}
}
return destination;}
/**
- rename 文件重命名
* - @param filePath
- @param from
- @param to
- @return
*/
public static File rename(String filePath, String from, String to) {
File newFile = null;
try {File oldFile = new File(combainPath(filePath, from));
newFile = new File(combainPath(filePath, to));
rename(newFile, oldFile);
} catch (Exception ex) {j2log(null, null, ex);
}
return newFile;}
/**
- rename 文件重命名
* - @param to
- @param from
- @return
*/
public static File rename(File from, File to) {
try {String newPath = to.getPath();
String oldPath = from.getPath();
if (!oldPath.equals(newPath)) {if (!to.exists()) {from.renameTo(to);
}
}
} catch (Exception ex) {j2log(null, null, ex);
}
return to;}
/**
- mv 挪动文件
* - @param fileName
- @param source
- @param destination
- @param cover
*/
public static void mv(String fileName, String source, String destination, boolean cover) {
try {if (!source.equals(destination)) {File oldFile = new File(combainPath(source, fileName));
File newFile = new File(combainPath(destination, fileName));
mv(oldFile, newFile, cover);
}
} catch (Exception ex) {j2log(null, null, ex);
}}
/**
- mv 挪动文件
* - @param source
- @param destination
- @param cover
*/
public static void mv(String source, String destination, boolean cover) {
try {if (!source.equals(destination)) {File oldFile = new File(source);
File newFile = new File(destination);
mv(oldFile, newFile, cover);
}
} catch (Exception ex) {j2log(null, null, ex);
}}
/**
- mv 挪动文件
* - @param source
- @param destination
- @param cover
*/
public static void mv(File source, File destination, boolean cover) {
try {if (!source.exists()) {throw new FileNotFoundException();
}
StringBuilder fileName = new StringBuilder(source.getName());
if (!cover && source.getPath().equals(destination.getPath())) {if (fileName.indexOf(".") > 0) {fileName.insert(fileName.lastIndexOf("."), "_正本");
} else {fileName.append("_正本");
}
cp(source, new File(combainPath(source.getParent(), fileName.toString())));
} else {source.renameTo(destination);
}
} catch (Exception ex) {j2log(null, null, ex);
}}
/**
- extensions 获取文件扩展名信息
* - @param filePath
- @param fileName
- @return
*/
private static String[] extensions(String filePath, String fileName) {
String[] extension = {};
try {String fullPath = combainPath(filePath, fileName);
File file = new File(fullPath);
extensions(file);
} catch (Exception ex) {j2log(null, null, ex);
}
return extension;}
/**
- extensions 获取文件扩展名信息
* - @param fullPath
- @return
*/
private static String[] extensions(String fullPath) {
String[] extension = {};
try {File file = new File(fullPath);
extensions(file);
} catch (Exception ex) {j2log(null, null, ex);
}
return extension;}
/**
- extensions 获取文件扩展名信息
* - @param file
- @return
*/
private static String[] extensions(File file) {
String[] extension = {};
try {if (file.isFile()) {String fileName = file.getName();
if (fileName.lastIndexOf(".") >= 0) {int lastIndex = fileName.lastIndexOf(".");
extension[0] = String.valueOf(lastIndex);// 扩展名的“.”的索引
extension[1] = fileName.substring(lastIndex + 1);// 扩展名
extension[2] = fileName.substring(0, lastIndex);// 文件名
}
}
} catch (Exception ex) {j2log(null, null, ex);
}
return extension;}
/**
- ls 遍历文件
* - @param filePath
- @param loop
- @return
*/
public static List<File> ls(String filePath, boolean loop) {
List<File> list = new ArrayList();
try {File file = new File(filePath);
list.addAll(ls(file, loop));
} catch (Exception ex) {j2log(null, null, ex);
}
return list;}
/**
- ls 遍历文件
* - @param file
- @param loop
- @return
*/
public static List<File> ls(File file, boolean loop) {
List<File> list = new ArrayList();
try {list.add(file);
if (!file.isDirectory()) {list.add(file);
} else if (file.isDirectory()) {File[] subList = file.listFiles();
subList = filesSort(subList, true);
for (File subFile : subList) {if (subFile.isDirectory() && loop) {list.addAll(ls(subFile.getPath(), loop));
} else {list.add(subFile);
}
}
}
} catch (Exception ex) {j2log(null, null, ex);
}
return list;}
/**
- filesSort 文件排序（默认升序）
* - @param parentPath
- @param subList
- @return
*/
private static File[] filesSort(File[] inFiles, boolean asc) {
List<String> files = new ArrayList();
List<String> dirs = new ArrayList();
for (File subFile : inFiles) {if (subFile.isDirectory()) {dirs.add(subFile.getPath());
} else if (subFile.isFile()) {files.add(subFile.getPath());
}
}