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/*****************************************************************************
* *
* This file is part of the tna framework distribution. *
* Documentation and updates may be get from biaoping.yin the author of *
* this framework *
* *
* Sun Public License Notice: *
* *
* The contents of this file are subject to the Sun Public License Version *
* 1.0 (the "License"); you may not use this file except in compliance with *
* the License. A copy of the License is available at http://www.sun.com *
* *
* The Original Code is tag. The Initial Developer of the Original *
* Code is biaoping yin. Portions created by biaoping yin are Copyright *
* (C) 2000. All Rights Reserved. *
* *
* GNU Public License Notice: *
* *
* Alternatively, the contents of this file may be used under the terms of *
* the GNU Lesser General Public License (the "LGPL"), in which case the *
* provisions of LGPL are applicable instead of those above. If you wish to *
* allow use of your version of this file only under the terms of the LGPL *
* and not to allow others to use your version of this file under the SPL, *
* indicate your decision by deleting the provisions above and replace *
* them with the notice and other provisions required by the LGPL. If you *
* do not delete the provisions above, a recipient may use your version of *
* this file under either the SPL or the LGPL. *
* *
* biaoping.yin ([email protected]) *
* Author of Learning Java *
* *
*****************************************************************************/
package com.frameworkset.util;
/**
* @author biaoping.yin
* 文件处理实用类
*/
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileFilter;
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.io.Reader;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.net.URL;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.ListResourceBundle;
import java.util.Properties;
import java.util.Vector;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
import org.frameworkset.cache.FileContentCache;
import org.frameworkset.util.io.ClassPathResource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class FileUtil
{
private static Logger log = LoggerFactory.getLogger(FileContentCache.class);
private static final ListResourceBundle mimeTypes = new FileMIMETypes();
public static final String apppath;
static{
URL location = (FileUtil.class).getProtectionDomain().getCodeSource().getLocation();
File appDir = computeApplicationDir(location, new File("."));
apppath = appDir.getParentFile().getPath();
}
/**
* 获取页面类型
* @param fileName
* @return
*/
public static String getMimeType(String fileExt) {
try {
return mimeTypes.getString(fileExt);
} catch (Exception e) {
return "";
}
}
/**
* 获取页面类型
* @param fileName
* @return
*/
public static String getMimeTypeByleName(String fileName) {
try {
String fileExt = FileUtil.getFileExtByFileName(fileName);
return mimeTypes.getString(fileExt);
} catch (Exception e) {
return "";
}
}
/**
* determine the OS name
*
* @return The name of the OS
*/
public static final String getOS() {
return System.getProperty("os.name");
}
/**
* @return True if the OS is a Windows derivate.
*/
public static final boolean isWindows() {
return getOS().startsWith("Windows");
}
/**
* @return True if the OS is a Linux derivate.
*/
public static final boolean isLinux() {
return getOS().startsWith("Linux");
}
private static File computeApplicationDir(URL location, File defaultDir)
{
if (location == null)
{
System.out.println("Warning: Cannot locate the program directory. Assuming default.");
return defaultDir;
}
if (!"file".equalsIgnoreCase(location.getProtocol()))
{
System.out.println("Warning: Unrecognized location type. Assuming default.");
return new File(".");
}
String file = location.getFile();
if (!file.endsWith(".jar") && !file.endsWith(".zip"))
{
try
{
return (new File(URLDecoder.decode(location.getFile(), "UTF-8"))).getParentFile().getParentFile();
}
catch (UnsupportedEncodingException e)
{
}
System.out.println("Warning: Unrecognized location type. Assuming default.");
return new File(location.getFile());
}
else
{
try
{
File path = null;//new File(URLDecoder.decode(location.toExternalForm().substring(6), "UTF-8")).getParentFile();
if(!isLinux())
{
path = new File(URLDecoder.decode(location.toExternalForm().substring(6), "UTF-8")).getParentFile().getParentFile();
}
else
{
path = new File(URLDecoder.decode(location.toExternalForm().substring(5), "UTF-8")).getParentFile().getParentFile();
}
// System.out.println("path: " + path.getAbsolutePath());
// System.out.println("location: " + location.getPath());
// System.out.println("external from location: " + URLDecoder.decode(location.toExternalForm().substring(6), "UTF-8"));
// System.out.println("external from location + 6: " + URLDecoder.decode(location.toExternalForm(), "UTF-8"));
return path;
}
catch (UnsupportedEncodingException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
System.out.println("Warning: Unrecognized location type. Assuming default.");
return new File(location.getFile());
}
public FileUtil()
{
}
/**
* Description:读取文件的内容，将其保存在StringBuffer对象中返回，
*
* @param file
* @return StringBuffer
* @throws Exception
* StringBuffer
*/
public static StringBuffer read(String file) throws Exception
{
BufferedReader in = null;
StringBuffer sb = new StringBuffer();
String s = null;
StringBuffer stringbuffer;
try
{
in = new BufferedReader(new FileReader(file));
while ((s = in.readLine()) != null)
sb.append(s).append('\n');
stringbuffer = sb;
}
finally
{
if (in != null)
in.close();
}
return stringbuffer;
}
/**
* Description:获取属性文件的类容
*
* @param propsFile
* @return Properties
* @throws Exception
* Properties
*/
public static Properties getProperties(String propsFile) throws Exception
{
return getProperties(propsFile, false);
}
/**
* Description:获取属性文件的内容，并且根据addToSystemProps的值是否装载系统属性
*
* @param propsFile
* @param addToSystemProps
* true:装载系统属性，false不装载系统属性
* @return Properties
* @throws Exception
* Properties
*/
public static Properties getProperties(String propsFile, boolean addToSystemProps) throws Exception
{
FileInputStream fis = null;
Properties props = null;
try
{
fis = new FileInputStream(propsFile);
props = addToSystemProps ? new Properties(System.getProperties()) : new Properties();
props.load(fis);
fis.close();
}
finally
{
if (fis != null)
fis.close();
}
return props;
}
public static File createNewFile(String filePath)
{
File file = new File(filePath);
if (file.exists())
return file;
File dir = file.getParentFile();
if (!dir.exists())
dir.mkdirs();
try
{
file.createNewFile();
return file;
}
catch (IOException e)
{
e.printStackTrace();
}
return file;
}
public static File createNewFileOnExist(String filePath)
{
File file = new File(filePath);
if (file.exists())
file.delete();
File dir = file.getParentFile();
if (!dir.exists())
dir.mkdirs();
try
{
file.createNewFile();
return file;
}
catch (IOException e)
{
e.printStackTrace();
}
return file;
}
public static File createNewDirectory(String directorPath)
{
File dir = new File(directorPath);
if (dir.exists())
return dir;
dir.mkdirs();
return dir;
}
public static void copy(File sourceFile, String destinction) throws IOException
{
// File sourceFile = new File(source);
if (!sourceFile.exists())
return;
File dest_f = new File(destinction);
if (!dest_f.exists())
dest_f.mkdirs();
if (sourceFile.isDirectory())
{
java.io.File[] files = sourceFile.listFiles();
for (int i = 0; files != null && i < files.length; i++)
{
File temp = files[i];
if (temp.isDirectory())
{
String fileName = temp.getName();
copy(temp, destinction + "/" + fileName);
}
else
{
fileCopy(temp.getAbsolutePath(), destinction + "/" + temp.getName());
}
}
}
else
{
File destinctionFile = new File(destinction);
if (!destinctionFile.exists())
{
destinctionFile.mkdirs();
}
String dest = destinction + "/" + sourceFile.getName();
fileCopy(sourceFile, dest);
}
// File destinctionFile = new File(destinction);
// if (destinctionFile.exists())
// ;
}
/**
* 目录拷贝,用于对目录的所有文件和子目录进行递归拷贝
*
* @param source
* @param destinction
* 必须为目录
* @throws IOException
*/
public static void copy(String source, String destinction) throws IOException
{
File sourceFile = new File(source);
copy(sourceFile, destinction);
}
public static void makeFile(String destinctionFile)
{
File f = new File(destinctionFile);
File pf = f.getParentFile();
if (f.exists())
return;
if (!pf.exists())
{
pf.mkdirs();
}
try
{
f.createNewFile();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void fileCopy(String sourcefile, String destinctionFile) throws IOException
{
fileCopy(new File(sourcefile), destinctionFile);
}
public static void fileCopy(File sourcefile, String destinctionFile) throws IOException
{
FileInputStream stFileInputStream = null;
FileOutputStream stFileOutputStream = null;
try
{
makeFile(destinctionFile);
stFileInputStream = new FileInputStream(sourcefile);
stFileOutputStream = new FileOutputStream(destinctionFile);
int arraySize = 1024;
byte buffer[] = new byte[arraySize];
int bytesRead;
while ((bytesRead = stFileInputStream.read(buffer)) != -1)
{
stFileOutputStream.write(buffer, 0, bytesRead);
}
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
if (stFileInputStream != null)
try
{
stFileInputStream.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
if (stFileOutputStream != null)
try
{
stFileOutputStream.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public static void fileCopy(File sourcefile, File destinctionFile) throws IOException
{
FileInputStream stFileInputStream = null;
FileOutputStream stFileOutputStream = null;
try
{
// makeFile(destinctionFile);
stFileInputStream = new FileInputStream(sourcefile);
stFileOutputStream = new FileOutputStream(destinctionFile);
int arraySize = 1024;
byte buffer[] = new byte[arraySize];
int bytesRead;
while ((bytesRead = stFileInputStream.read(buffer)) != -1)
{
stFileOutputStream.write(buffer, 0, bytesRead);
}
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
if (stFileInputStream != null)
try
{
stFileInputStream.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
if (stFileOutputStream != null)
try
{
stFileOutputStream.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/**
* 获取文件得内容
*
* @param filePath
* 文件得物理路径
* @return
* @throws IOException
*/
public static String getFileContent(String filePath,String charSet) throws IOException
{
return getFileContent(new File( filePath),charSet);
}
/**
* 获取文件得内容
*
* @param filePath
* 文件得物理路径
* @return
* @throws IOException
*/
public static String getFileContent(File file,String charSet) throws IOException
{
ByteArrayOutputStream swriter = null;
OutputStream temp = null;
InputStream reader = null;
try
{
reader = new FileInputStream(file);
swriter = new ByteArrayOutputStream();
temp = new BufferedOutputStream(swriter);
int len = 0;
byte[] buffer = new byte[1024];
while ((len = reader.read(buffer)) > 0)
{
temp.write(buffer, 0, len);
}
temp.flush();
if(charSet != null && !charSet.equals(""))
return swriter.toString(charSet);
else
return swriter.toString();
}
catch (FileNotFoundException e)
{
log.error("Get File Content Error:", e);
return "";
}
catch (IOException e)
{
log.error("Get File Content Error:", e);
throw e;
}
finally
{
if (reader != null)
try
{
reader.close();
}
catch (IOException e)
{
}
if (swriter != null)
try
{
swriter.close();
}
catch (IOException e)
{
}
if (temp != null)
try
{
temp.close();
}
catch (IOException e)
{
}
}
}
/**
* 获取文件得内容
*
* @param filePath
* 文件得物理路径
* @return
* @throws IOException
*/
public static String getFileContent(InputStream reader,String charSet) throws IOException
{
ByteArrayOutputStream swriter = null;
OutputStream temp = null;
try
{
swriter = new ByteArrayOutputStream();
temp = new BufferedOutputStream(swriter);
int len = 0;
byte[] buffer = new byte[1024];
while ((len = reader.read(buffer)) > 0)
{
temp.write(buffer, 0, len);
}
temp.flush();
if(charSet != null && !charSet.equals(""))
return swriter.toString(charSet);
else
return swriter.toString();
}
catch (FileNotFoundException e)
{
log.error("Get File Content Error:", e);
return "";
}
catch (IOException e)
{
log.error("Get File Content Error:", e);
throw e;
}
finally
{
if (reader != null)
try
{
reader.close();
}
catch (IOException e)
{
}
if (swriter != null)
try
{
swriter.close();
}
catch (IOException e)
{
}
if (temp != null)
try
{
temp.close();
}
catch (IOException e)
{
}
}
}
/**
* 获取文件得内容
* 对应得文件路径如果带file:则表示文件是物理路径，例如:file:/opt/aaa.txt
* 如果不带，则表示classpath类路径下的文件路径
*
* @param file
* 文件得物理路径
* @return
* @throws IOException
*/
public static String getContent(String file,String charSet) throws IOException
{
InputStream input = null;
String content = null;
if(!file.startsWith("file:"))
{
ClassPathResource resource = new ClassPathResource(file);
input = resource.getInputStream();
content = getFileContent(input, charSet);
}
else
{
content = getFileContent(file.substring(5), charSet);
}
return content;
}
public static void main(String[] args)
{
try {
System.out.println(FileUtil.getFileContent("D:\\workspace\\bbossgroup-2.0-RC2\\bboss-mvc/WebRoot/jsp/databind/table.jsp","UTF-8"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private static final int EOF = -1;
// 获取指定路径和文件后缀名的文件名列表
public Vector getFileNames(String pathName, String suffix) throws Exception
{
Vector v = new Vector();
String[] fileNames = null;
File file = new File(pathName);
fileNames = file.list();
if (fileNames == null)
throw new Exception();
for (int i = 0; i < fileNames.length; i++)
{
if (suffix.equals("*") || fileNames[i].toLowerCase().endsWith(suffix.toLowerCase()))
v.addElement(fileNames[i]);
}
return v;
}
/**
* 删除文件目录下的所有子文件和子目录，操作一定要小心
*
* @param publishTemppath
*/
public static void deleteFile(String path)
{
deleteFile(new File(path));
}
/**
* 删除文件目录下的所有子文件和子目录，操作一定要小心
*
* @param publishTemppath
*/
public static void deleteFile(File file)
{
if (!file.exists() || file.isFile())
return;
if (file.isDirectory())
deleteSubfiles(file.getAbsolutePath());
file.delete();
}
/**
* 删除文件目录下的所有子文件和子目录，操作一定要小心
*
* @param publishTemppath
*/
public static void removeFileOrDirectory(String path)
{
removeFileOrDirectory(new File (path));
}
/**
* 删除文件目录下的所有子文件和子目录，操作一定要小心
*
* @param publishTemppath
*/
public static void removeFileOrDirectory(File file)
{
if (!file.exists())
return;
if (file.isDirectory())
deleteSubfiles(file.getAbsolutePath());
file.delete();
}
/**
* 只删除目标文件
*
* @param path
* 文件绝对路径
* @author da.wei200710171007
*/
public static void deleteFileOnly(String path)
{
File file = new File(path);
if (file.exists() && file.isFile())
{
file.delete();
}
}
/**
* 移动文件
*/
public static void moveFile(String sourceFileName, String destPath) throws Exception
{
File src = new File(sourceFileName);
// File dest = new File(destPath );
if (!src.exists())
{
throw new Exception("save file[" + sourceFileName + "] to file[" + destPath + "] failed:" + sourceFileName
+ " not exist.");
}
// if (dest.exists()) {
// if (!dest.delete())
// {
// System.out.println("delete dest file failed:" +
// dest.getAbsolutePath()
// + " the file is read= " + dest.canRead()
// + " the file is write= " + dest.canWrite());
// }
// // throw new FileMoveException(
// // "Dest file already exists,delete fail!");
// }
// src = null;
// dest = null;
try
{
FileUtil.fileCopy(sourceFileName, destPath);
}
catch (Exception e)
{
// TODO Auto-generated catch block
System.out.println("save file[" + sourceFileName + "] to file[" + destPath + "]" + e.getMessage());
e.printStackTrace();
}
// if (!src.renameTo(dest))
// {
// try {
// System.setOut(new java.io.PrintStream(new
// java.io.FileOutputStream(new File("d:/test.log"))));
// } catch (FileNotFoundException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
//
// System.out.println("src.getAbsolutePath():" + src.getAbsolutePath());
// System.out.println("src.exist():" + src.exists());
// System.out.println("dest.getAbsolutePath():" +
// dest.getAbsolutePath());
// System.out.println("dest.exist():" + dest.exists());
// // Runtime.getRuntime().halt(1);
//
// throw new FileMoveException("Move file fail!");
// }
}
/**
* 重命名文件，原来的文件会被删除
* @param source
* @param dest
*/
public static void renameFile(String source,String dest)
{
File file = new File(source);
file.renameTo(new File(dest));
}
/**
* 重命名文件，原来的文件会被删除
* @param source
* @param dest
*/
public static void renameFile(File source,File dest)
{
source.renameTo(dest);
}
/**
* 备份文件，删除原来的文件
* @param source
* @param dest
* @throws IOException
*/
public static void bakFile(String source, String dest) throws IOException{
File file = new File(source);
boolean state = file.renameTo(new File(dest));
if(!state){
//将文件source拷贝到dest
fileCopy(source,dest);
//删除source文件
deleteFileOnly(source);
}
}
public static void moveSubFiles(String sourceFileName, String destPath)
{
File src = new File(sourceFileName);
File dest = new File(destPath);
if (!dest.exists())
dest.mkdirs();
if (src.isFile())
return;
else
{
File[] files = src.listFiles();
String destFile = null;
for (int i = 0; files != null && i < files.length; i++)
{
if (files[i].isDirectory())
{
String temp_name = files[i].getName();
try
{
moveSubFiles(files[i].getAbsolutePath(), destPath + "/" + temp_name);
}
catch (Exception e)
{
e.printStackTrace();
continue;
}
}
else
{
destFile = destPath + "/" + files[i].getName();
try
{
moveFile(files[i].getAbsolutePath(), destFile);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
}
}
public static List upzip(ZipInputStream zip, String destPath) throws ZipException, IOException
{
List fileNames = new ArrayList();
ZipEntry azipfile = null;
while ((azipfile = zip.getNextEntry()) != null)
{
// String name = new
// String(azipfile.getName().getBytes("UTF-8"),"GBK");
String name = azipfile.getName();
fileNames.add(name);
if (!azipfile.isDirectory())
{
File targetFile = new File(destPath, name);
targetFile.getParentFile().mkdirs();
if (targetFile.exists())
{
targetFile.delete();
}
targetFile.createNewFile();
BufferedOutputStream diskfile = null;
FileOutputStream out = null;
try
{
out = new FileOutputStream(targetFile);
diskfile = new BufferedOutputStream(out);
byte[] buffer = new byte[1024];
int read;
while ((read = zip.read(buffer)) != -1)
{
diskfile.write(buffer, 0, read);
}
diskfile.flush();
}
catch(Exception e)
{
e.printStackTrace();
}
finally
{
try {
if(out != null)
out.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
if(diskfile != null)
diskfile.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
return fileNames;
}
/**
* 将zip文件解压到destPath路径下面
*
* @param sourceFileName
* @param destPath
* @return
* @throws ZipException
* @throws IOException
* FileUtil.java
* @author: ge.tao
*/
public static void unzip(String sourceFileName, String destPath) throws ZipException, IOException
{
ZipFile zf = null;
// if (sourceFileName.endsWith(".zip") || sourceFileName.endsWith(".war"))
try
{
zf = new ZipFile(sourceFileName);
Enumeration en = zf.entries();
while (en.hasMoreElements())
{
ZipEntry zipEnt = (ZipEntry) en.nextElement();
saveEntry(destPath, zipEnt, zf);
}
}
finally
{
if(zf != null)
zf.close();
}
}
public static void saveEntry(String destPath, ZipEntry target, ZipFile zf) throws ZipException, IOException
{
InputStream is = null;
BufferedInputStream bis = null;
FileOutputStream fos = null;
BufferedOutputStream bos = null;
try
{
File file = new File(destPath + "/" + target.getName());
if (target.isDirectory())
{
file.mkdirs();
}
else
{
is = zf.getInputStream(target);
bis = new BufferedInputStream(is);
File dir = new File(file.getParent());
dir.mkdirs();
fos = new FileOutputStream(file);
bos = new BufferedOutputStream(fos);
int c;
while ((c = bis.read()) != EOF)
{
bos.write((byte) c);
}
bos.flush();
}
}
catch (ZipException e)
{
throw e;
}
catch (IOException e)
{
throw e;
}
finally
{
try {
if(bis != null)
bis.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
if(is != null)
is.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
if(bos != null)
bos.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
if(fos != null)
fos.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
// 创建目录
public static boolean createDir(String dirName)
{
File file = new File(dirName);
if (!file.exists())
return file.mkdir();
return true;
}
//
public static void createFile(String fileName) throws IOException
{
File file = new File(fileName);
if (!file.exists())
{
if (!file.createNewFile())
throw new IOException("Create file fail!");
}
}
public static void writeFile(String fileName, String text) throws IOException
{
FileWriter fw = new FileWriter(fileName, true);
try
{
fw.write(text, 0, text.length());
}
catch (IOException ioe)
{
throw new IOException("Write text to " + fileName + " fail!");
}
finally
{
fw.close();
}
}
public static void writeFile(String fileName, String text,String encode) throws IOException
{
writeFile(new File( fileName), text,encode);
}
public static void writeFile(File file, String text,String encode) throws IOException
{
Writer fw = null;
java.io.OutputStream out = null;
try
{
out = new FileOutputStream(file);
fw = new BufferedWriter(new OutputStreamWriter(out,encode == null?"UTF-8":encode));
fw.write(text, 0, text.length());
fw.flush();
}
catch (IOException ioe)
{
throw new IOException("Write text to " + file.getPath() + " fail!");
}
finally
{
try {
out.close();
} catch (Exception e) {
}
try {
fw.close();
} catch (Exception e) {
}
}
}
public static void writeFile(String fileName, String text, boolean isAppend) throws IOException
{
FileWriter fw = new FileWriter(fileName, isAppend);
try
{
fw.write(text, 0, text.length());
}
catch (IOException ioe)
{
throw new IOException("Write text to " + fileName + " fail!");
}
finally
{
fw.close();
}
}
/**
* 删除文件目录下的所有子文件和子目录，操作一定要小心
*
* @param publishTemppath
*/
public static void deleteSubfiles(String publishTemppath)
{
File file = new File(publishTemppath);
if (!file.exists() || file.isFile())
return;
File[] files = file.listFiles();
for (int i = 0; files != null && i < files.length; i++)
{
File temp = files[i];
if (temp.isDirectory())
{
deleteSubfiles(temp.getAbsolutePath());
}
temp.delete();
}
}
public static String getFileExtByFileName(String fileName)
{
if (fileName == null)
return "";
else
{
int idx = fileName.lastIndexOf(".");
if (idx != -1)
return fileName.substring(idx + 1);
else return "";
}
}
/**
* 获取文件得内容
*
* @param filePath
* 文件得物理路径
* @return
* @throws IOException
*/
public static String getFileContent(String filePath) throws IOException
{
Writer swriter = null;
Reader reader = null;
try
{
reader = new FileReader(filePath);
swriter = new StringWriter();
int len = 0;
char[] buffer = new char[1024];
while ((len = reader.read(buffer)) != -1)
{
swriter.write(buffer, 0, len);
}
return swriter.toString();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
return "";
}
catch (IOException e)
{
e.printStackTrace();
throw e;
}
finally
{
if (reader != null)
try
{
reader.close();
}
catch (IOException e)
{
}
if (swriter != null)
try
{
swriter.close();
}
catch (IOException e)
{
}
}
}
/**
*
* @param path
* @return
*/
public static boolean hasSubDirectory(String path, String uri)
{
File file = null;
if (uri == null || uri.trim().length() == 0)
{
file = new File(path);
}
else
{
file = new File(path, uri);
}
if (!file.exists() || file.isFile())
return false;
File[] subFiles = file.listFiles(new FileFilter()
{
public boolean accept(File pathname)
{
if (pathname.isDirectory())
return true;
else return false;
}
});
return subFiles.length > 0;
}
/**
*
* @param path
* @return
*/
public static boolean hasSubDirectory(String path)
{
return hasSubDirectory(path, null);
}
/**
*
* @param path
* @return
*/
public static boolean hasSubFiles(String path, String uri)
{
File file = new File(path, uri);
if (!file.exists() || file.isFile())
return false;
File[] subFiles = file.listFiles(new FileFilter()
{
public boolean accept(File pathname)
{
if (!pathname.isDirectory())
return true;
else return false;
}
});
return subFiles.length > 0;
}
/**
*
* @param path
* @return
*/
public static boolean hasSubFiles(String path)
{
File file = new File(path);
if (!file.exists() || file.isFile())
return false;
File[] subFiles = file.listFiles(new FileFilter()
{
public boolean accept(File pathname)
{
if (!pathname.isDirectory())
return true;
else return false;
}
});
return subFiles.length > 0;
}
public static File[] getSubDirectories(String parentpath, String uri)
{
File file = null;
if (uri == null || uri.trim().length() == 0)
{
file = new File(parentpath);
}
else
{
file = new File(parentpath, uri);
}
if (!file.exists() || file.isFile())
return null;
File[] subFiles = file.listFiles(new FileFilter()
{
public boolean accept(File pathname)
{
if (pathname.isDirectory())
return true;
else return false;
}
});
return subFiles;
}
public static File[] getSubDirectories(String parentpath)
{
return getSubDirectories(parentpath, null);
}
/**
* 获取某个路径下的所有文件(不包括文件夹)
*/
public static File[] getSubFiles(String parentpath)
{
return getSubFiles(parentpath, (String) null);
}
/**
* 获取某个路径下的所有文件(不包括文件夹)
*/
public static File[] getSubFiles(String parentpath, String uri)
{
File file = null;
if (uri == null || uri.trim().length() == 0)
{
file = new File(parentpath);
}
else
{
file = new File(parentpath, uri);
}
if (!file.exists() || file.isFile())
return null;
File[] subFiles = file.listFiles(new FileFilter()
{
public boolean accept(File pathname)
{
if (pathname.isFile())
return true;
else return false;
}
});
return subFiles;
}
public static File[] getSubFiles(String parentpath, FileFilter fileFilter)
{
return getSubFiles(parentpath, null, fileFilter);
}
public static File[] getSubFiles(String parentpath, String uri, FileFilter fileFilter)
{
File file = null;
if (uri == null || uri.trim().length() == 0)
{
file = new File(parentpath);
}
else
{
file = new File(parentpath, uri);
}
if (!file.exists() || file.isFile())
return null;
File[] files = null;
if (fileFilter != null)
{
files = file.listFiles(fileFilter);
}
else
{
files = file.listFiles();
}
// 预防传递进来的FileFilter没有把文件过滤掉
int rLen = 0;
for (int i = 0; files != null && i < files.length; i++)
{
if (files[i].isFile())
{
files[rLen] = files[i];
rLen++;
}
}
File[] r = new File[rLen];
System.arraycopy(files, 0, r, 0, rLen);
return r;
}
/**
* 参考getSubDirectorieAndFiles(String parentpath,String uri,FileFilter
* fileFilter)方法
*/
public static File[] getSubDirectorieAndFiles(String parentpath)
{
return getSubDirectorieAndFiles(parentpath, null, null);
}
/**
* 参考getSubDirectorieAndFiles(String parentpath,String uri,FileFilter
* fileFilter)方法
*/
public static File[] getSubDirectorieAndFiles(String parentpath, String uri)
{
return getSubDirectorieAndFiles(parentpath, uri, null);
}
/**
* 参考getSubDirectorieAndFiles(String parentpath,String uri,FileFilter
* fileFilter)方法
*/
public static File[] getSubDirectorieAndFiles(String parentpath, FileFilter fileFilter)
{
return getSubDirectorieAndFiles(parentpath, null, fileFilter);
}
/**
* 获取某个路径下的文件
*
* @param parentpath
* 绝对路径
* @param uri
* 相对与 parentpath的相对路径
* @param fileFilter
* 过滤某些文件,这个权力交给了使用该方法的用户
* @return
*/
public static File[] getSubDirectorieAndFiles(String parentpath, String uri, FileFilter fileFilter)
{
File file = null;
if (uri == null || uri.trim().length() == 0)
{
file = new File(parentpath);
}
else
{
file = new File(parentpath, uri);
}
if (!file.exists() || file.isFile())
return null;
if (fileFilter != null)
{
return file.listFiles(fileFilter);
}
else
{
return file.listFiles();
}
}
public static String getFileContent(File file)
{
Writer swriter = null;
Reader reader = null;
try
{
reader = new FileReader(file);
swriter = new StringWriter();
int len = 0;
char[] buffer = new char[1024];
while ((len = reader.read(buffer)) > 0)
{
swriter.write(buffer, 0, len);
}
swriter.flush();
return swriter.toString();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
return "";
}
catch (IOException e)
{
e.printStackTrace();
return "";
}
finally
{
if (reader != null)
try
{
reader.close();
}
catch (IOException e)
{
}
if (swriter != null)
try
{
swriter.close();
}
catch (IOException e)
{
}
}
}
/**
* 从输入流中读取字节数组
*
* @param in
* @return
* @throws IOException
*/
public static byte[] readFully(InputStream in) throws IOException
{
if (in instanceof ByteArrayInputStream)
{
// content can be read in one pass
int size = in.available();
byte[] bytes = new byte[size];
// read in the bytes
int offset = 0;
int numRead = 0;
while (offset < size)
{
numRead = in.read(bytes, offset, size - offset);
if (numRead >= 0)
{
offset += numRead;
}
else
{
break;
}
}
return bytes;
}
// copy buffer
byte[] xfer = new byte[2048];
// output buffer
ByteArrayOutputStream out = new ByteArrayOutputStream(xfer.length);
// transfer data from input to output in xfer-sized chunks.
for (int bytesRead = in.read(xfer, 0, xfer.length); bytesRead >= 0; bytesRead = in.read(xfer, 0, xfer.length))
{
if (bytesRead > 0)
{
out.write(xfer, 0, bytesRead);
}
}
in.close();
out.close();
return out.toByteArray();
}
// private static final Category cat;
//
// static
// {
// cat = Category.getInstance(com.pow2.util.FileUtil.class);
// }
private static void zipFile(File source, String basePath, ZipOutputStream zos) throws IOException {
File[] files = null;
if (source.isDirectory()) {
files = source.listFiles();
} else {
files = new File[1];
files[0] = source;
}
String pathName;
byte[] buf = new byte[1024];
int length = 0;
try {
for (File file : files) {
if (file.isDirectory()) {
pathName = file.getPath().substring(basePath.length() + 1) + "/";
zos.putNextEntry(new ZipEntry(pathName));
zipFile(file, basePath, zos);
} else {
pathName = file.getPath().substring(basePath.length() + 1);
BufferedInputStream bis = null;
InputStream is = null;
try
{
is = new FileInputStream(file);
bis = new BufferedInputStream(is);
zos.putNextEntry(new ZipEntry(pathName));
while ((length = bis.read(buf)) > 0) {
zos.write(buf, 0, length);
}
}
finally
{
if (is != null) {
try {
is.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (bis != null) {
try {
bis.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
} finally {
}
}
public static File zip(File f,File destfile)
{
java.io.BufferedOutputStream out = null;
ZipOutputStream zipOut = null;
try {
out = new BufferedOutputStream(new FileOutputStream(
destfile));
zipOut = new ZipOutputStream(out);
String basePath;
if(f.isDirectory())
basePath = f.getPath();
else
basePath = f.getParent();
zipFile(f, basePath, zipOut);
return destfile;
} catch (IOException e) {
return null;
}
finally
{
if(zipOut != null)
try {
zipOut.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(out != null)
try {
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public static File zip(File f,String destfile)
{
java.io.BufferedOutputStream out = null;
ZipOutputStream zipOut = null;
try {
File ret = new File(destfile);
out = new BufferedOutputStream(new FileOutputStream(
ret));
zipOut = new ZipOutputStream(out);
String basePath;
if(f.isDirectory())
basePath = f.getPath();
else
basePath = f.getParent();
zipFile(f, basePath, zipOut);
return ret;
} catch (IOException e) {
return null;
}
finally
{
if(zipOut != null)
try {
zipOut.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(out != null)
try {
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
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