日期:2014-05-16 浏览次数:21039 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 +