World、Excel利用流下载

/**
 * 下载excel
 * @param request
 * @param response
 * @param filePath
 * @param fileName
 */
public static void download(HttpServletRequest request, HttpServletResponse response, String filePath, String fileName) {
    response.setContentType("application/vnd.ms-excel");
    BufferedInputStream bis = null;
    BufferedOutputStream bos = null;
    try {
        String recommendedName = new String(fileName.getBytes(), "iso_8859_1");//设置文件名称的编码格式
        response.setHeader("Content-Disposition", "attachment; filename=" + recommendedName + ".xls");
        bis = new BufferedInputStream(new FileInputStream(filePath));
        bos = new BufferedOutputStream(response.getOutputStream());
        byte[] buff = new byte[2048];
        int bytesRead;
        while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
            bos.write(buff, 0, bytesRead);
        }
    } catch (Exception e) {
        System.out.println(e.getMessage());
    } finally {
        try {
            if (bis != null)
                bis.close();
            if (bos != null)
                bos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

/**
 * 下载word
 * @param request
 * @param response
 * @param filePath
 * @param fileName
 */
public void download(HttpServletRequest request, HttpServletResponse response, String filePath, String fileName) {
    response.setContentType("application/x-msdownload;charset=UTF-8");

    BufferedInputStream bis = null;
    BufferedOutputStream bos = null;

    try {
        response.setHeader("Content-disposition", "attachment; filename=" + new String(fileName.getBytes("gbk"), "ISO8859-1"));
        bis = new BufferedInputStream(new FileInputStream(filePath));
        bos = new BufferedOutputStream(response.getOutputStream());
        byte[] buff = new byte[2048];
        int bytesRead;
        while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
            bos.write(buff, 0, bytesRead);
        }
    } catch (Exception e) {
        System.out.println(e.getMessage());
    } finally {
        try {
            if (bis != null)
                bis.close();
            if (bos != null)
                bos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}