Java実装フォルダcopyとdelete

仕事のためjavaでフォルダのcopyとdeleteを実現し、後で検索するためにブログに置きます.

package com.founder.assets.util;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.commons.fileupload.util.Streams;


public class FolderUtil {

	/**
	 *       
	 *@param sourceDir     
	 *@param targetDir      
	 */
	public static void copyFolder(String sourceDir, String targetDir)  throws IOException {
		//          ，   
		if (!((new File(targetDir)).exists())) {
			(new File(targetDir)).mkdirs();
		}

		//                
		File[] file = (new File(sourceDir)).listFiles();
		if(file == null){
			return;
		}
		for (int i = 0; i < file.length; i++) {
			if (file[i].isFile()) {
				//    
				File sourceFile = file[i];
				//     
				File targetFile = new File(new File(targetDir).getAbsolutePath() + File.separator + file[i].getName());
				copyFile(sourceFile, targetFile);
			}
		}
	}

	/**
	 *        
	 *@param sourceFile     
	 *@param targetFile      
	 */
	public static void copyFile(File sourceFile, File targetFile) throws IOException {
		BufferedInputStream inBuff = null;
        BufferedOutputStream outBuff = null;
        try {
            //               
            inBuff = new BufferedInputStream(new FileInputStream(sourceFile));

            //               
            outBuff = new BufferedOutputStream(new FileOutputStream(targetFile));
            Streams.copy(inBuff, outBuff, false);
            outBuff.flush();
        } finally {
            //    
            if (inBuff != null)
                inBuff.close();
            if (outBuff != null)
                outBuff.close();
        }
	}
	
	public static void copyFile(String xmlFile, String destName) throws IOException {
		copyFile(new File(xmlFile), new File(destName));		
	}

	/**
	 *                ，      
	 *@param deletePath           
	 *@return        true，     false。
	 */
	public static boolean DeleteFolder(String deletePath) {
	    boolean flag = false;
	    File file = new File(deletePath);
	    //            
	    if (!file.exists()) {  //       false
	        return flag;
	    } else {
	        //        
	        if (file.isFile()) {  //             
	            return deleteFile(deletePath);
	        } else {  //             
	            return deleteDirectory(deletePath);
	        }
	    }
	}

	/**
	 *       
	 * @param   deletePath             
	 * @return           true，    false
	 */
	public static boolean deleteFile(String deletePath) {
		boolean flag = false;
	    File file = new File(deletePath);
	    //               
	    if (file.isFile() && file.exists()) {
	        file.delete();
	        flag = true;
	    }
	    return flag;
	}

	/**
	 *     （   ）        
	 * @param   sPath           
	 * @return          true，    false
	 */
	public static boolean deleteDirectory(String deletePath) {
	    //  deletePath         ，         
	    if (!deletePath.endsWith(File.separator)) {
	    	deletePath = deletePath + File.separator;
	    }
	    File dirFile = new File(deletePath);
	    //  dir        ，        ，   
	    if (!dirFile.exists() || !dirFile.isDirectory()) {
	        return false;
	    }
	    boolean flag = true;
	    //           (     )
	    File[] files = dirFile.listFiles();
	    for (int i = 0; i < files.length; i++) {
	        //     
	        if (files[i].isFile()) {
	            flag = deleteFile(files[i].getAbsolutePath());
	            if (!flag) break;
	        } //     
	        else {
	            flag = deleteDirectory(files[i].getAbsolutePath());
	            if (!flag) break;
	        }
	    }
	    if (!flag) return false;
	    //      
	    if (dirFile.delete()) {
	        return true;
	    } else {
	        return false;
	    }
	}

	/**
	 *            ，       
	 * @param   deletePath         
	 * @return
	 * @return          true，    false
	 */
	public static boolean cleanFolder(String cleanPath) {
	    //  cleanPath         ，         
	    if (!cleanPath.endsWith(File.separator)) {
	    	cleanPath = cleanPath + File.separator;
	    }
	    File dirFile = new File(cleanPath);
	    //  dir        ，        ，   
	    if (!dirFile.exists() || !dirFile.isDirectory()) {
	        return false;
	    }
	    boolean flag = true;
	    //           (     )
	    File[] files = dirFile.listFiles();
	    for (int i = 0; i < files.length; i++) {
	        //     
	        if (files[i].isFile()) {
	            flag = deleteFile(files[i].getAbsolutePath());
	            if (!flag) break;
	        } //     
	        else {
	            flag = deleteDirectory(files[i].getAbsolutePath());
	            if (!flag) break;
	        }
	    }
		return flag;
	}

	public static void main(String agrs[]) throws IOException {
		//String sourceDir = "D:\\foldercopyanddel\\sourcedir";
		//String targetDir = "D:\\foldercopyanddel\\targetdir";
		//copyFolder(sourceDir, targetDir);
		//System.out.print("copyFolder end!");

		//String targetDir = "D:\\foldercopyanddel\\targetdir";
		//DeleteFolder(targetDir);
		//System.out.print("deleteFolder end!");

		//String targetDir = "D:\\foldercopyanddel\\targetdir";
		//cleanFolder(targetDir);
		//System.out.print("cleanFolder end!");

		String sourceDir = "D:\\foldercopyanddel\\sourcedir\\booktest_stop.xml";
		deleteFile(sourceDir);
		System.out.print("deleteFile end!");
	 }

	
}