Java返回PDF到浏览器，设置文件返回名称 原创

Java返回PDF到浏览器，设置文件返回名称

复制收展Java/**
     * @Description:回写数据流到页面,用于pdf预览
     * @param bytes
     * @param fileName
     * @author luolei
     * @since 2022-03-31
     */
    protected void responsePdf(byte[] bytes, String fileName) {
        HttpServletResponse response = ContextUtils.getHttpContext().getResponse();
        OutputStream outputStream = null;
        try {
            response.reset();
            response.setContentType("application/pdf; name="+java.net.URLEncoder.encode(fileName, "UTF-8"));
            response.setHeader("Content-Disposition","inline; filename="+ java.net.URLEncoder.encode(fileName, "UTF-8"));
            response.setContentLength(bytes.length);
            outputStream = response.getOutputStream();
            outputStream.write(bytes, 0, bytes.length);
            outputStream.flush();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (outputStream != null)
                try {
                    outputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
        }
    }
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