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使用浏览器下载,自定义内容的txt文件

舟海君 2022-02-20 阅读 86
mavenspring
public void exportZip(HttpServletResponse response, UserInfo userInfo) throws Exception {
        response.setContentType("text/plain");// 一下两行关键的设置
        response.addHeader("Content-Disposition",
                "attachment;filename=test.txt");// filename指定默认的名字
        BufferedOutputStream buff = null;
        StringBuffer write = new StringBuffer();
        String enter = "\r\n";//换行
        ServletOutputStream outSTr = null;
        try {
            outSTr = response.getOutputStream();// 建立
            buff = new BufferedOutputStream(outSTr);
            String nowDate = nowDate("yyyy-MM-dd hh:mm:ss");
            for (int i = 0; i < userInfo.getNum(); i++) {
                write.append("当前时间:"+nowDate+enter);
                write.append(enter);
            }
            buff.write(write.toString().getBytes("UTF-8"));
            buff.flush();
            buff.close();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                buff.close();
                outSTr.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
    
    /**
     * 自定义格式时间
     * @param DATE_FORMAT
     * @return
     */
    public static String nowDate(String DATE_FORMAT) {
        SimpleDateFormat dft = new SimpleDateFormat(DATE_FORMAT);
        return dft.format(new Date());
    }
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