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1.需求场景

浏览器下载服务器上的文本文件,避免浏览器直接打开

2.项目环境

Spring spring mvc mybatis

3.实现方法

/**
	 *
	 * TODO 下载文件
	 * 
	 * @param param
	 *
	 */
	@ResponseBody
	@RequestMapping("download")
	public void download(String path, HttpServletRequest request,
			HttpServletResponse response) {
		try {
			String fileName ="/data/dbmonitor/"+path;
			  //设置响应类型
			response.setContentType("application/force-download");//应用程序强制下载
		    //读取文件
		    InputStream in = new FileInputStream(fileName);
		    //设置响应头,对文件进行url编码
		    exelog = URLEncoder.encode(exelog, "UTF-8");
		    response.setHeader("Content-Disposition", "attachment;filename="+path);   
		    response.setContentLength(in.available());
		    OutputStream out = response.getOutputStream();
		    byte[] b = new byte[1024];
		    int len = 0;
		    while((len = in.read(b))!=-1){
		      out.write(b, 0, len);
		    }
		    out.flush();
		    out.close();
		    in.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

本文标签: 文本文件浏览器项目web