文件下载

/**
     * 下载文件
     * @param filePath 文件路径
     * @param fileName 文件名
     * @see [类、类#方法、类#成员]
     */
    public void downLoad(String filePath, String fileName)
    {
        ServletOutputStream out = null;
        BufferedInputStream bis = null;
        BufferedOutputStream bos = null;
        try
        {
            out = ServletActionContext.getResponse().getOutputStream();
            ServletActionContext.getResponse().setContentType("application/msexcel");
            ServletActionContext.getResponse().setHeader("Content-disposition", "attachment;filename=" + fileName);
            FileInputStream fin = new FileInputStream(filePath + File.separatorChar + fileName);
            bis = new BufferedInputStream(fin);
            bos = new BufferedOutputStream(out);
            byte buff[] = new byte[BUFFERSIZE];
            int bytesRead;
            while (-1 != (bytesRead = bis.read(buff, 0, buff.length)))
            {
                bos.write(buff, 0, bytesRead);
            }
        }
        catch (IOException e1)
        {
            UserLogger.error("downLoad IOException... [BaseAction.downLoad]", e1);
        }
        finally
        {
            try
            {
                if (bis != null)
                {
                    bis.close();
                }
                if (bos != null)
                {
                    bos.close();
                }
            }
            catch (IOException e)
            {
                UserLogger.error("downLoad close IOException... [BaseAction.downLoad]", e);
            }
            
        }
    }