日期:2014-05-16 浏览次数:21198 次
package com.zzg.util;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.vfs.FileObject;
import org.apache.commons.vfs.FileSystemException;
import org.apache.commons.vfs.FileSystemManager;
import org.apache.commons.vfs.FileType;
import org.apache.commons.vfs.Selectors;
import org.apache.commons.vfs.VFS;
public class FileUtil {
private static FileSystemManager fsm = null;
static {
try {
fsm = VFS.getManager();
} catch (FileSystemException e) {
e.printStackTrace();
}
}
public static FileObject getFile(String path){
try {
return fsm.resolveFile(path);
} catch (FileSystemException e) {
e.printStackTrace();
return null;
}
}
public static void delete(String path) {
try {
FileObject fo = fsm.resolveFile(path);
fo.delete();
} catch (FileSystemException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static boolean isDirectory(String path) {
try {
FileObject fo = fsm.resolveFile(path);
return fo.getType().equals(FileType.FOLDER);
} catch (FileSystemException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return false;
}
public static InputStream getInputStream(String path){
try {
FileObject fo = fsm.resolveFile(path);
return fo.getContent().getInputStream();
} catch (FileSystemException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public static OutputStream getOutputStream(String path){
try {
FileObject fo = fsm.resolveFile(path);
return fo.getContent().getOutputStream();
} catch (FileSystemException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public static boolean isFile(String path) {
try {
FileObject fo = fsm.resolveFile(path);
return fo.getType().equals(FileType.FILE);
} catch (FileSystemException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return false;
}
/**
* 函数描述:根据传入的文件路径创建文件夹(包括各级父文件夹)。如果路径中有文件,会自动去掉文件名。 (文件的判断是
* 以最后一个"/"之后是否有"."为标识的,)
*
* @param path
* @return 如果创建成功,返回true;否则,返回false;
*/
public static boolean mkdirs(String path) {
String realPath = "";
path = path.replaceAll("\\\\", "/");
// 如果该路径已"/"结尾,则整个字符串都是路径
if (path.endsWith("/")) {
realPath = path;
} else {
int fileNamePoint = path.lastIndexOf("/");
// 获取真正的路径
if (fileNamePoint >= 0) {
realPath = path.substring(0, fileNamePoint);
}
// 读取文件名
String fileName = path.substring(fileNamePoint + 1);
// 如果读取的文件名中没有".",说明整个字符串都是路径
if (fileName.indexOf(".") < 0) {
realPath = path;
}
}
try {
FileObject fo = fsm.resolveFile(realPath);
fo.createFolder();
return true;
} catch (Exception e) {
return false;
}
}
/**
* 函数描述:对文件进行copy
*
* @param sourceFilePath
* 源文件的全部路径+文件名
* @param targetFilePath
* 目标文件的全部路径+文件名
* @param overWrite
* 如果目标文件存在,是否覆盖。true:覆盖;false:不覆盖(当源文件和目标文件都存在并且不覆盖时,返回true)。
* @return true:成功;false:失败; (当源文件和目标文件都存在并且不覆盖时,返回true)。
*/
public static boolean copyFile(String sourceFilePath, String targetFilePath, boolean overWrite) throws IOException {
if (StringUtils.isBlank(sourceFilePath) || StringUtils.isBlank(targetFilePath)) {
throw new IOException("源文件或者目标文件为空");
}
FileObject from = fsm.resolveFile(sourceFilePath);
FileObject to = fsm.resolveFile(targetFilePath);
if (to.exists()) {
if (to.getType() == FileType.FILE) {
if (overWrite && !to.delete()) {
throw new IOException("目标文件[" + targetFilePath + "]被保护,不能被覆盖!");
} else if (!overWrite) {
throw new IOException("目标文件[" + targetFilePath +