javaWeb后端下载磁盘文件

Posted 2023-02-26 张文琪2022

@RequestMapping(value = "/download")
    public void queryByDictType(HttpServletRequest request, HttpServletResponse response) 
        String pathStr = request.getParameter("path")//文件路径
        response.addHeader("Content-type", "appllication/octet-stream");//下载标识
		response.addHeader("Content-Disposition", "attachment;filename="+pathStr);下载标识

        try (InputStream in = new FileInputStream(fileName);
             OutputStream out = response.getOutputStream())         
            int i;
            while ((i = in.read()) != -1) 
                out.write(i);
            
           
         catch (Exception e)