如何用jsp实现对文件的删除，拷贝，和剪切？

Question

用jsp File browser,
http://www.vonloesch.de/jspbrowser.html

Answer 1

java里面的File类可以实现的，嵌到jsp就可以

Answer 2

public class DeliveryUtil
{
    public DeliveryUtil()
    {
    }    public static final String OctalHexNoZero =  "(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[1-9])";
    public static final String OctalHex = "(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])";    /**
     * Copy file to another place.
     * @param sourceFilePath String
     * @param destFilePath String
     */
    private static boolean CopyFile(String sourceFilePath, String destFilePath)
    {
        File sourceFile = new File(sourceFilePath);
        BufferedInputStream fin = null;
        BufferedOutputStream fout = null;        try
        {
            fin = new BufferedInputStream(new FileInputStream(sourceFile));
            fout = new BufferedOutputStream(new FileOutputStream(destFilePath));
            byte[] b = new byte[1024];
            int len = 0;
            while ( (len = fin.read(b)) != -1)
            {
                fout.write(b, 0, len);
            }
        }
        catch (IOException ex)
        {
            ex.printStackTrace();
            return false;
        }
        finally
        {
            try
            {
                fin.close();
                fout.close();
            }
            catch (IOException ex)
            {
                return false;
            }
        }
      return true;
    }    /**
     * Copy file to another place.
     * @param sourceFilePath String
     * @param destFilePath String
     * @throws IOException
     */
    public static boolean XCopyDir(String sourceDir, String destDir)
    {
        File source = new File(sourceDir);
        File dest = new File(destDir);        if(!source.isDirectory())
        {
            throw new IllegalArgumentException("invalid source directory path,path="+sourceDir);
        }
        if(!dest.exists()&&!dest.mkdirs())
        {
            UspLog.error("create dir error,dir="+dest);
            return false;
        }
        File[] files = source.listFiles();
        String destPath = null;
        for(int i=0;i<files.length;i++)
        {
            destPath = destDir+"\\"+files[i].getName();
            boolean isExists = new File(destPath).exists();
            if(files[i].isFile()&&!isExists)
            {
                if(!CopyFile(files[i].getPath(), destPath))
                {
                    UspLog.error("copy file error,file="+files[i].getPath()+",destpath="+destPath);
                    return false;
                }
            }
            else if(files[i].isDirectory()&&!isExists)
            {
                if(!XCopyDir(files[i].getPath(),destPath))
                    return false;
            }
        }
        return true;
    }    /**
     * Copy file to another place.
     * @param sourceFilePath String
     * @param destFilePath String
     * @throws IOException
     */
    private static boolean XCopyDirWithCMD(String sourceDirPath, String destDirPath)
    {        String command = "xcopy " + sourceDirPath + " " + destDirPath + " /e /s /i";
        try
        {
            Process proc = Runtime.getRuntime().exec(command);
            /* Causes the current thread to wait, if necessary,
             until the process represented by this Process object has terminated.
             */            if (proc.waitFor() != 0)
            {
                // Return the exit value for the process,the value 0 indicates normal
                //  termination.                if ( (proc.exitValue()) != 0)
                {
                    return false;
                }
            }
        }
        catch (Exception ex)
        {
            return false;
        }
        return true;
    }    private static boolean DeleteFile(String filePath)
    {
        File file = new File(filePath);
        if (file.exists())
        {
            return file.delete();
        }
        else
        {
            return false;
        }
    }    public static boolean XDeleteDir(String dirPath)
    {
        File dir = new File(dirPath);
        if(!dir.isDirectory())
        {
            return false;
        }
        File[] files = dir.listFiles();        for(int i=0;i<files.length;i++)
        {
            if(files[i].isFile())
            {
                if(!files[i].delete())
                {
                    UspLog.error("delete file error,file="+files[i]);
                    return false;
                }
            }
            else if(files[i].isDirectory())
            {
                if(!XDeleteDir(files[i].getPath()))
                    return false;
            }
        }
        return dir.delete();
    }
}