文件工具类FileUtil

2018-08-10 11:16:27来源：博客园阅读 ()

package cn.itcast.util.file;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.List;

import cn.itcast.util.FormatStyle;
import cn.itcast.util.UtilFuns;

public class FileUtil {

/* ======================================== *
* Class Methods
* ======================================== */

public String getFileExt(String s){
String s1 = new String();
int i = 0;
int j = 0;
if(s == null)
return null;
i = s.lastIndexOf(46) + 1;
j = s.length();
s1 = s.substring(i, j);
if(s.lastIndexOf(46) > 0)
return s1.toLowerCase();
else
return "";
}

private String getNameWithoutExtension(String fileName){
return fileName.substring(0, fileName.lastIndexOf("."));
}

public boolean isImgFile(String file)
{
if(UtilFuns.isNotEmpty(file)){
String s1 = "."+this.getFileExt(file);
if(".jpg.jpeg.bmp.gif.png".indexOf(s1)>-1){
return true;
}
}
return false;
}

public String getFileName(String s){
try{
s = s.replaceAll("/", "\\\\");
int fileIndex= s.lastIndexOf("\\")+1;
return s.substring(fileIndex,s.length());
}catch(Exception e){
return "";
}
}

public String getFilePath(String s){
try{
s = s.replaceAll("/", "\\\\");
int fileIndex= s.lastIndexOf("\\");
return s.substring(0,fileIndex);
}catch(Exception e){
return "";
}
}

/* 目录下已经有同名文件,则文件重命名,增加文件序号 add by tony 20110712 */
public String newFile(String sPath, String sFile){
String newFileName = new String();
String withoutExt = new String();
File curFile = new File(sPath + "\\" + sFile);
if (curFile.exists()) {
for(int counter = 1; curFile.exists(); counter++){
withoutExt = this.getNameWithoutExtension(curFile.getName());
if(withoutExt.endsWith(counter-1 + ")")){
withoutExt = withoutExt.substring(0,withoutExt.indexOf("(")); //idea
}
newFileName = withoutExt + "(" + counter + ")" + "." + getFileExt(curFile.getName());
curFile = new File(sPath + "\\" + newFileName);
}
}else{
newFileName = curFile.getName();
}
return newFileName;
}

/* 只清空文件夹，不删除文件夹 */
public static synchronized void clearDir(String dir_path)
throws FileNotFoundException {

File file = new File(dir_path);
if (!file.exists()) {
throw new FileNotFoundException();
}
if (file.isDirectory()) {
File[] fe = file.listFiles();
for (int i = 0; i < fe.length; i++) {
deleteFiles(fe[i].toString());
fe[i].delete(); //删除已经是空的子目录
}
}
}

//ex: deleteDir(new File("c://aaa"));
/* 清空文件夹，并删除文件夹 */
public static synchronized void deleteDir(String dir_path)
throws FileNotFoundException,IOException {
deleteDir(new File(dir_path));
}

//ex: deleteDir(new File("c://aaa"));
/* 清空文件夹，并删除文件夹 */
public static synchronized void deleteDir(File f)
throws FileNotFoundException,IOException {

if(!f.exists()){//文件夹不存在不存在
throw new IOException("指定目录不存在:"+f.getName());
}
boolean rslt=true;//保存中间结果
if(!(rslt=f.delete())){//先尝试直接删除
//若文件夹非空。枚举、递归删除里面内容
File subs[] = f.listFiles();
for (int i = 0; i <= subs.length - 1; i++) {
if (subs[i].isDirectory())
deleteDir(subs[i]);//递归删除子文件夹内容
rslt = subs[i].delete();//删除子文件夹本身
}
rslt = f.delete();//删除此文件夹本身
}
//if(!rslt)
//　throw new IOException("无法删除:"+f.getName());
//return;
}

//路径中的多层目录,如果不存在,则建立(mkdir－只可建最后一层目录)
public static synchronized void makeDir(String dirPath)
throws FileNotFoundException {
String s = "";

dirPath = dirPath.replaceAll("\\t","/t"); //replace tab key
dirPath = dirPath.replaceAll("\\\\","/");
String[] aPath = dirPath.split("/");
for (int i=0;i<aPath.length;i++){
s = s + aPath[i] + "/";
//System.out.println(s);
File d = new File(s);
if(!d.exists()){
d.mkdir();
}
}
}

//修改目录名称或文件名称 dir and file
public static synchronized void rename(String sOld,String sNew)
throws FileNotFoundException {
boolean b = false;
File d = new File(sOld);
if(d.exists()){
b = d.renameTo(new File(sNew));
}
}

public static synchronized String formulaDirName(String dirName){
dirName = dirName.replaceAll("/","\\\\");
return dirName;
}

public static synchronized String formulaPath(String dirName){
dirName = dirName.replaceAll("\\\\","/");
return dirName;
}

public static synchronized String lastDir(String dir_path){
if(dir_path.trim().compareTo("")==0){
return "";
}else{
//两个位置，谁后取谁。因为路径中常包含这两种标识
int i= dir_path.lastIndexOf("\\")>dir_path.lastIndexOf("/")?dir_path.lastIndexOf("\\"):dir_path.lastIndexOf("/");
if(i>0){
return dir_path.substring(i);
}else{
return "";
}
}
}

//删除给定的文件
public static void deleteFile(String FileName) {
File f2 = new File(FileName);
f2.delete(); //del file
f2 = null;
}

/*
*删除目录下的所有文件
**/
public static boolean deleteFiles(String dir) {
if(dir==null || "".equals(dir))
return true;

File f0 = new File(dir);
if( !f0.isDirectory() )
return false;
File[] files = f0.listFiles();
boolean status = true;
for(int i=0; i<files.length; i++) {
File f = files[i];
if( !f.isFile() )
continue;

boolean b = f.delete();
status = ( status && b );
}
return status;
}

/** Deletes each file in <tt>files</tt> which is under <tt>path</tt>.
* It does not delete directory.
*
* @param path
* @param files
* @return <tt>true</tt> if and only if all the files are successfully
* deleted; <tt>false</tt> otherwise.
*/
public static boolean deleteFiles(String path, String[] files) {
if(path==null || files==null)
return true;

boolean status = true;
for(int i=0; i<files.length; i++) {
File f = new File(path, files[i]);
if( !f.isFile() )
continue;
//? (f.getAbsoluteFile()).
boolean b = f.delete();
status = ( status && b );
}
return status;
}

public static boolean deleteFiles(List files) {

if(files==null || files.size()<=0)
return true;

String fileName = "";
boolean status = true;
for(int i=0; i<files.size(); i++) {
fileName = (String)files.get(i);
File f = new File(fileName);
if( !f.isFile() )
continue;
//? (f.getAbsoluteFile()).
boolean b = f.delete();
status = ( status && b );
}
return status;
}

/** Copies byte-content of <tt>f</tt> to <tt>os</tt>.
*
* @param f
* @param os
* @throws IOException
*/
public static void fileToOutputStream(File f, OutputStream os)
throws IOException {
//
InputStream is = new BufferedInputStream( new FileInputStream(f) );
byte[] barr = new byte[1024];
int count;
while(true) {
count = is.read(barr);
if(count == -1)
break;

os.write(barr, 0, count);
}
is.close();
return;
}
//读日志文件 "c:\\Log.txt"
//输入参数：sFile = Path + FileName 文件路径＋文件名称
public List<String> readTxtFile(String sFile) {
String str = "";
List<String> sList = new ArrayList<String>();
try {
FileReader fr = new FileReader(sFile);
BufferedReader bfr = new BufferedReader(fr);
while((str = bfr.readLine())!=null){
sList.add(str);
}
fr.close();
}catch (IOException ex){System.out.println("readTxtFile IOException Error."+ex.getMessage());
}catch (Exception ex) {System.out.println("readTxtFile Exception Error."+ex.getMessage());}
return sList;
}

public String WriteTxt(String sPath,String sFile,String sContent) {
String s = "";
File d=new File(sPath);//建立代表Sub目录的File对象，并得到它的一个引用
if(!d.exists()){//检查Sub目录是否存在
d.mkdir();//建立Sub目录
}

try {
FileWriter fw = new FileWriter(sPath + "\\" + sFile,true);
BufferedWriter bfw = new BufferedWriter(fw);
bfw.write(sContent);
bfw.flush();
fw.close();
}catch (IOException ex){ s = "WriteTxt IOException Error.";
}catch (Exception ex) { s = "WriteTxt Exception Error.";}

return s;
}

/* 创建新文本文件，如果文件已经存在则覆盖 */
public String createTxt(String sPathFile,String sContent) throws FileNotFoundException {
String s = "";
String sPath = this.getFilePath(sPathFile);
String sFile = this.getFileName(sPathFile);

File d=new File(sPath); //建立代表Sub目录的File对象，并得到它的一个引用
if(!d.exists()){ //检查Sub目录是否存在
this.makeDir(sPath); //建立Sub目录
}

try {
FileWriter fw = new FileWriter(sPath + "\\" + sFile,false);
BufferedWriter bfw = new BufferedWriter(fw);
bfw.write(sContent);
bfw.flush();
fw.close();
}catch (IOException ex){ s = "createTxt IOException Error.";
}catch (Exception ex) { s = "createTxt Exception Error.";}

return s;
}

/* 创建新文本文件，如果文件已经存在则覆盖 */
public String createTxt(String sPath,String sFile,String sContent) throws FileNotFoundException {
String s = "";
File d=new File(sPath); //建立代表Sub目录的File对象，并得到它的一个引用
if(!d.exists()){ //检查Sub目录是否存在
this.makeDir(sPath); //建立Sub目录
}

try {
FileWriter fw = new FileWriter(sPath + "\\" + sFile,false);
BufferedWriter bfw = new BufferedWriter(fw);
bfw.write(sContent);
bfw.flush();
fw.close();
}catch (IOException ex){ s = "createTxt IOException Error.";
}catch (Exception ex) { s = "createTxt Exception Error.";}

return s;
}

/* 创建新文本文件，如果文件已经存在则覆盖，在文件后追加内容文件格式：encode:UTF-8 add by tony 20100118 */
public String createTxt(String sPath,String sFile,String sContent,String enCoding) throws FileNotFoundException {
String s = "";
File d=new File(sPath); //建立代表Sub目录的File对象，并得到它的一个引用
if(!d.exists()){ //检查Sub目录是否存在
this.makeDir(sPath); //建立Sub目录
}

try {
OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(sPath + "\\" + sFile), enCoding);
out.write(sContent);
out.flush();
out.close();
}catch (IOException ex){ s = "createTxt IOException Error.";
}catch (Exception ex) { s = "createTxt Exception Error."; }

return s;
}

/* 创建新文本文件，如果文件已经存在则覆盖，只覆盖不追加文件格式：encode:UTF-8 add by tony 20100118 */
public String newTxt(String sPath,String sFile,String sContent,String enCoding) throws FileNotFoundException {
String s = "";
File d=new File(sPath); //建立代表Sub目录的File对象，并得到它的一个引用
if(!d.exists()){ //检查Sub目录是否存在
this.makeDir(sPath); //建立Sub目录
}

try {
OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(sPath + "\\" + sFile, false), enCoding);
out.write(sContent);
out.flush();
out.close();
}catch (IOException ex){ s = "createTxt IOException Error.";
}catch (Exception ex) { s = "createTxt Exception Error."; }

return s;
}

/*

s = "c:\\ex.txt";
String[] aTitle = null; //表示没有标题
String[] aContent = {"a","b","c","a1","a2","a3"};

sMsg = fileUtil.WriteTxt(s,aTitle,aContent,"\t",3); //\t TAB键

*/
public String WriteTxt(String sFile,String[] aTitle,String[] aContent,String sSplitFlag,int iColumns) {
String sMsg = "";
long lTime = System.currentTimeMillis();
try {
if (aTitle!=null){
if (aTitle.length!=iColumns){
throw new Exception("Title Length is not right!");
}
}

File f = new File(sFile);
if(f.exists())
{
f.delete(); //if exist then delete()
}

FileWriter fw = new FileWriter(sFile,true);
BufferedWriter bfw = new BufferedWriter(fw);

//write Title
if (aTitle!=null){
for(int i=0;i<aTitle.length;i++){
bfw.write(aTitle[i] + sSplitFlag);
}
bfw.newLine(); //插入换行符号
}

//write content
for(int i=0;i<aContent.length;i++){
bfw.write(aContent[i] + sSplitFlag);

if ((i+1)%iColumns==0){
bfw.newLine(); //插入换行符号
}
}
bfw.flush(); //将缓冲区内的数据写入文件中
fw.close();
}catch (IOException ex){
sMsg = "WriteTxt IOException Error."+ex.getMessage();
}catch (Exception ex) {
sMsg = "WriteTxt Exception Error."+ex.getMessage();
}
return sMsg;
}

//边生成边写XML文件对单表结构
public String WriteXML(String sFile,String indent,String root,String[] aTrunk,String[] aLeaf,String[] aContent) {
int i=0,j=0,k=0;
String sIndent = "";
String[] aTrunkSuffix = new String[aTrunk.length];
String[] aLeafSuffix = new String[aLeaf.length];

String sMsg = "";
long lTime = System.currentTimeMillis();

try {

File f = new File(sFile);
if(f.exists())
{
f.delete(); //if exist then delete()
}

//inital array
for(i=0;i<aTrunk.length;i++){
for(j=0;j<i;j++){
sIndent = indent + sIndent; //add space
}
aTrunk[i] = sIndent + "<" + aTrunk[i] + ">";
aTrunkSuffix[i] = aTrunk[i].replaceFirst("<","</");
//System.out.println(i + " " + aTrunk[i]+aTrunkSuffix[i]);
}

sIndent = indent + sIndent; //add space
for(i=0;i<aLeaf.length;i++){
aLeafSuffix[i] = "</" + aLeaf[i] + ">";
aLeaf[i] = sIndent + "<" + aLeaf[i] + ">";
}

FileWriter fw = new FileWriter(sFile,true);
BufferedWriter bfw = new BufferedWriter(fw);

bfw.write("<?xml version=\"1.0\" ?>");bfw.newLine();
if(root.length()>0){
bfw.write("<"+root+">");bfw.newLine();
}

while(k<aContent.length){
for(i=0;i<aTrunk.length;i++){
bfw.write(aTrunk[i]);bfw.newLine();
}
for(i=0;i<aLeaf.length;i++){
bfw.write(aLeaf[i] + aContent[k++] + aLeafSuffix[i]);bfw.newLine();
}

for(i=aTrunkSuffix.length-1;i>-1;i--){
bfw.write(aTrunkSuffix[i]);bfw.newLine();
}
}//end while

if(root.length()>0){
bfw.write("</"+root+">");bfw.newLine();
}

bfw.flush(); //将缓冲区内的数据写入文件中
fw.close();
}catch (IOException ex){
sMsg = this.getClass().getName()+ " WriteXML IOException Error."+ex.getMessage();
}catch (Exception ex) {
sMsg = this.getClass().getName()+ " WriteXML Exception Error."+ex.getMessage();
}
return sMsg;
}

//create xml lines to ArrayList
public ArrayList CreateXML(String StartIndent,String indent,String[] aTrunk,String[] aLeaf,String[] aContent) {

ArrayList aList = new ArrayList();

int i=0,j=0,k=0;
String sIndent = StartIndent;
String[] aTrunkSuffix = new String[aTrunk.length];
String[] aLeafSuffix = new String[aLeaf.length];

String sMsg = "";
long lTime = System.currentTimeMillis();

try {

//inital array
for(i=0;i<aTrunk.length;i++){
for(j=0;j<i;j++){
sIndent = indent + sIndent; //add space
}
aTrunk[i] = sIndent + "<" + aTrunk[i] + ">";
aTrunkSuffix[i] = aTrunk[i].replaceFirst("<","</");
}

sIndent = indent + sIndent; //add space
for(i=0;i<aLeaf.length;i++){
aLeafSuffix[i] = "</" + aLeaf[i] + ">";
aLeaf[i] = sIndent + "<" + aLeaf[i] + ">";
}

while(k<aContent.length){
for(i=0;i<aTrunk.length;i++){
aList.add(aTrunk[i]);
}
for(i=0;i<aLeaf.length;i++){
aList.add(aLeaf[i] + aContent[k++] + aLeafSuffix[i]);
}

for(i=aTrunkSuffix.length-1;i>-1;i--){
aList.add(aTrunkSuffix[i]);
}
}//end while

return aList;
}catch (Exception ex) {
sMsg = this.getClass().getName()+ " CreateXML Exception Error."+ex.getMessage();
}
return null;
}

//边生成边写XML文件
public String WriteXML(String sFile,String sXmlVer,String root,ArrayList aList) {

String sMsg = "";
long lTime = System.currentTimeMillis();
try {

File f = new File(sFile);
if(f.exists())
{
f.delete(); //if exist then delete()
}

FileWriter fw = new FileWriter(sFile,true);
BufferedWriter bfw = new BufferedWriter(fw);

bfw.write("<?"+sXmlVer+"?>");bfw.newLine();

if(root.length()>0){
bfw.write("<"+root+">");bfw.newLine();
}

//write txt
for(int i=0;i<aList.size();i++){
bfw.write((String)aList.get(i));bfw.newLine();
}

if(root.length()>0){
//去掉元素后面的属性
bfw.write("</"+root.substring(0,root.indexOf(" "))+">");
}

bfw.flush(); //将缓冲区内的数据写入文件中
fw.close();
}catch (IOException ex){
sMsg = this.getClass().getName()+ " WriteXML IOException Error."+ex.getMessage();
}catch (Exception ex) {
sMsg = this.getClass().getName()+ " WriteXML Exception Error."+ex.getMessage();
}
return sMsg;
}

public boolean isExist(String filename){
try{
File file = new File(filename);
if(!file.exists()){
return false;
}else{
return true;
}
}catch(Exception e){
return false;
}
}

//用于判断是绝对路径还是相对路径 add by tony 20100413
public boolean isAbsolutePath(String path){
if(path.indexOf(":")>0){
return true;
}
return false;
}

/** * 功能:利用nio来快速复制文件 */
public void copyFile(String srcFile, String destFile)
throws java.io.FileNotFoundException, java.io.IOException {
FileInputStream fis = new FileInputStream(srcFile);
FileOutputStream fos = new FileOutputStream(destFile);
FileChannel fcin = fis.getChannel();
FileChannel fcout = fos.getChannel();
fcin.transferTo(0, fcin.size(), fcout);
fcin.close();
fcout.close();
fis.close();
fos.close();
}

/** 忽略拷贝文件时发生的错误，可能是文件不存在 */
public boolean copyFileIgnore(String file1,String file2){
try{
File file_in = new File(file1);
File file_out = new File(file2);
FileInputStream in1 = new FileInputStream(file_in);
FileOutputStream out1 = new FileOutputStream(file_out);
byte[] bytes = new byte[1024];
int c;
while((c=in1.read(bytes))!=-1){
out1.write(bytes,0,c);
}
in1.close();
out1.close();
return true; //if sucess then return true
}catch(Exception e){
return false; //if fail then return false
}

}

/* create by czs 2006-08-08 */
public void copyDir(String dir1,String dir2) throws java.io.FileNotFoundException, IOException{
(new File(dir2)).mkdir();
File[] file = (new File(dir1)).listFiles();

for(int i=0;i<file.length;i++){

if(file[i].getName().compareTo("Thumbs.db")!=0){
if(file[i].isFile()){
copyFile(dir1+"\\"+file[i].getName(),dir2+"\\"+file[i].getName());
}else if(file[i].isDirectory()){
copyDir(dir1+"\\"+file[i].getName(),dir2+"\\"+file[i].getName());
}
}
}
}

/** * 功能:利用nio快速复制目录 */
public void copyDirectory(String srcDirectory, String destDirectory)
throws java.io.FileNotFoundException, java.io.IOException { // 得到目录下的文件和目录数组

File srcDir = new File(srcDirectory);
File[] fileList = srcDir.listFiles();
// 循环处理数组

if(fileList==null){
throw new java.io.FileNotFoundException();
}

(new File(destDirectory)).mkdir();

for (int i = 0; i < fileList.length; i++) {
if (fileList[i].isFile()) {
// 数组中的对象为文件
// 如果目标目录不存在，创建目标目录
File descDir = new File(destDirectory);
if (!descDir.exists()) {
descDir.mkdir();
} // 复制文件到目标目录
if(fileList[i].getName().compareTo("Thumbs.db")!=0){ //windows bug
copyFile(srcDirectory + "/" + fileList[i].getName(),
destDirectory + "/" + fileList[i].getName());
}
} else {
// 数组中的对象为目录
// 如果该子目录不存在就创建（其中也包含了对多级目录的处理）
File subDir = new File(destDirectory + "/"
+ fileList[i].getName());
if (!subDir.exists()) {
subDir.mkdir();
}
// 递归处理子目录
copyDirectory(srcDirectory + "/" + fileList[i].getName(),
destDirectory + "/" + fileList[i].getName());

}
}
}

/* 列出目录下的所有文件 */
public List fileList(String dir){
File f = new File(dir);
File[] files = f.listFiles();
if (files==null){
return null;
}
int count = files.length;
List list = new ArrayList(count);
for (int i=0;i<count;i++){
if (!files[i].isDirectory()){
list.add(files[i]);
}
}
return list;
}

/* 列出目录下的所有文件，去除prefix路径~虚拟路径 */
public List fileList(String dir, String prefix){
FormatStyle formatStyle = new FormatStyle();
File f = new File(dir);
File[] files = f.listFiles();
if (files==null){
return null;
}
int count = files.length;
List list = new ArrayList(count);
for (int i=0;i<count;i++){
if (!files[i].isDirectory()){
list.add(String.valueOf(files[i]).substring(prefix.length()));
list.add(formatStyle.fileSize(String.valueOf(files[i].length())));
}
}
return list;
}

/* 列出目录下前缀为prefix，后缀为suffix的文件 by tony 20110930 */
public List<String> fileList(String dir, String prefix, String suffix){
FormatStyle formatStyle = new FormatStyle();
File f = new File(dir);
File[] files = f.listFiles();
if (files==null){
return null;
}
int count = files.length;
List _list = new ArrayList(count);
for (int i=0;i<count;i++){
if (!files[i].isDirectory()){
if(files[i].getName().startsWith(prefix) && files[i].getName().endsWith(suffix)){
_list.add(dir+"/"+files[i].getName());
}
}
}
return _list;
}

/* 列出目录下的所有目录 */
public List fileDir(String dir){
File f = new File(dir);
File[] files = f.listFiles();
if (files==null){
return null;
}
int count = files.length;
List list = new ArrayList(count);
for (int i=0;i<count;i++){
if (files[i].isDirectory()){
list.add(files[i]);
}
}
return list;
}

/* 列出目录下的所有目录，去除prefix路径~虚拟路径 */
public List fileDir(String dir, String prefix){
FormatStyle formatStyle = new FormatStyle();
File f = new File(dir);
File[] files = f.listFiles();
if (files==null){
return null;
}
int count = files.length;
List list = new ArrayList(count);
for (int i=0;i<count;i++){
if (files[i].isDirectory()){
list.add(String.valueOf(files[i]).substring(prefix.length()));
list.add(String.valueOf(files[i].listFiles().length));
}
}
return list;
}

public List dirfileList(String dir){
File f = new File(dir);
File[] files = f.listFiles();
if (files==null){
return null;
}
int count = files.length;
List list = new ArrayList(count);
for (int i=0;i<count;i++){
list.add(files[i]);
}
return list;
}

/**
* Moving a File to Another Directory
* @param srcFile eg: c:\windows\abc.txt
* @param destPath eg: c:\temp
* @return success
*/
public boolean moveFile(String srcFile, String destPath){
// File (or directory) to be moved
File file = new File(srcFile);

// Destination directory
File dir = new File(destPath);

// Move file to new directory
boolean success = file.renameTo(new File(dir, file.getName()));

return success;
}

/* ======================================== *
* Tests Methods
* ======================================== */

public static void main(String[] args) throws IOException {
FileUtil fu = new FileUtil();

//fu.copyDir("E:\\WorkSpace\\java\\pan\\userstyle\\one","E:\\WorkSpace\\java\\pan\\user\\test");
fu.rename("c:\\t","c:\\a");
//fu.fileList("E:\\WorkSpace\\java\\pan\\21pan");

//fu.copyDirectory("c:\\123","c:\\456");
//String dir = "D:\tmp\t/t";
//makeDir(dir);

/** FileUtil fu = new FileUtil();
boolean copy_ok=fu.copyFile("E://WorkSpace//java//eCargo//comm//uploadfile//do_upload.jsp","E://WorkSpace//java//eCargo//comm//uploadfile//hello_backup.jsp");
System.out.print(copy_ok);

fu.copyDir("c:/eclog","c:/ec");

String path = "d:/tmp";
String f1 = "links.txt";
boolean b = deleteFiles(path, new String[]{f1});
System.out.println(b);

FileUtil fileUtil = new FileUtil();
String[] aTrunk = {"gaosin","ex"};
String[] aLeaf = {"编号","姓名","标题","价格"};
String[] aContent = {"a","b","c","d","a1","a2","a3","a4"};
//String[] aContent = sqlDAO.CNRecordToStrings(sql);

String sMsg = fileUtil.WriteXML("c:\\ex.xml"," ","gaosin-info",aTrunk,aLeaf,aContent);
System.out.print(sMsg);

try{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder=factory.newDocumentBuilder();
Document doc=builder.parse("links.xml");
doc.normalize();
//---取得变量----
String text="Wudong's Homepage";
String url="www.wudong.com";
String author="Wudong Liu";
String discription="A site from Wudong Liu, give u lots of suprise!!!";
//-------------
Text textseg;
Element link=doc.createElement("link");

Element linktext=doc.createElement("text");
textseg=doc.createTextNode(text);
linktext.appendChild(textseg);
link.appendChild(linktext);

Element linkurl=doc.createElement("url");
textseg=doc.createTextNode(url);
linkurl.appendChild(textseg);
link.appendChild(linkurl);

Element linkauthor=doc.createElement("author");
textseg=doc.createTextNode(author);
linkauthor.appendChild(textseg);
link.appendChild(linkauthor);

java.util.Calendar rightNow = java.util.Calendar.getInstance();
String day=Integer.toString(rightNow.get(java.util.Calendar.DAY_OF_MONTH));
String month=Integer.toString(rightNow.get(java.util.Calendar.MONTH));
String year=Integer.toString(rightNow.get(java.util.Calendar.YEAR));
Element linkdate=doc.createElement("date");

Element linkdateday=doc.createElement("day");
textseg=doc.createTextNode(day);
linkdateday.appendChild(textseg);

Element linkdatemonth=doc.createElement("month");
textseg=doc.createTextNode(month);
linkdatemonth.appendChild(textseg);

Element linkdateyear=doc.createElement("year");
textseg=doc.createTextNode(year);
linkdateyear.appendChild(textseg);

linkdate.appendChild(linkdateday);
linkdate.appendChild(linkdatemonth);
linkdate.appendChild(linkdateyear);
link.appendChild(linkdate);

Element linkdiscription=doc.createElement("description");
textseg=doc.createTextNode(discription);
linkdiscription.appendChild(textseg);
link.appendChild(linkdiscription);

doc.getDocumentElement().appendChild(link);

TransformerFactory tFactory =TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new java.io.File("links.xml"));
transformer.transform(source, result);
}catch(Exception e){
e.printStackTrace();
}
*/
}