文件移动与下载

/**
     * 
     * 移动文件
     * @param oldFileName 旧文件的全路径 
     * @param newFilePath 目标文件夹
　　　* @param newFileName 新文件的全路径 　
     * @see [类、类#方法、类#成员]
     */
    public static void moveFile(String oldFileName, String newFilePath)
    {
        File oldFile = new File(oldFileName);
        File fnewpath = new File(newFilePath);
        if (!fnewpath.exists())
            fnewpath.mkdirs();
        File fnew = new File(new StringBuffer().append(newFilePath).append(oldFile.getName()).toString());
        oldFile.renameTo(fnew);
    }
    
    public static void moveFile(String oldFileName, String newFilePath,String newFileName)
    {
        File oldFile = new File(oldFileName);
        File fnewpath = new File(newFilePath);
        if (!fnewpath.exists())
            fnewpath.mkdirs();
        File fnew = new File(new StringBuffer().append(newFilePath).append(newFileName).toString());
        oldFile.renameTo(fnew);
    }

/**
     * 下载文件
     * @param urlString 文件地址
     * @param filename 保存文件名
     * @param savePath 保存文件夹
     * @throws Exception
     * @see [类、类#方法、类#成员]
     */
    public static void download(String urlString, String filename, String savePath)
        throws Exception
    {
        URL url = new URL(urlString);
        URLConnection con = url.openConnection();
        con.setConnectTimeout(5 * 1000);
        InputStream is = con.getInputStream();
        byte[] bs = new byte[1024];
        int len;
        File sf = new File(savePath);
        if (!sf.exists())
        {
            sf.mkdirs();
        }
        OutputStream os = new FileOutputStream(sf.getPath() + File.separator + filename);
        while ((len = is.read(bs)) != -1)
        {
            os.write(bs, 0, len);
        }
        os.close();
        is.close();
    }