java、springboot 接口导出txt

就写两个方法。

@Log
    @ApiOperation(value = "导出单码/箱码",produces = "application/octet-stream")
    @GetMapping(value = "/export")
    public void exportExcel(TraceBatchPageQuery page HttpServletResponse response){
        Page<TraceBatchDto> pages = traceBatchService.pageByParam(page);
        if (page.getRecords().size()==0)
            throw new BusinessException("数据为空");
      
        for(TraceBatchDto dto:pages.getRecords()){
            if (type==0)
                text.append(dto.getQuantity());
            else
                text.append(dto.getPackQuantity());
            text.append("\r\n");//换行字符
        }
        //导出的文件存储目录
        ExportUtil.exportTxt(response,text.toString());
    }

  /* 导出txt文件
     * @author
     * @param	response
     * @param	text 导出的字符串
     * @return
     */
    public static void exportTxt(HttpServletResponse response, String text,String name){
        response.setCharacterEncoding("utf-8");
        //设置响应的内容类型
        response.setContentType("text/plain");
        //设置文件的名称和格式
        response.addHeader("Content-Disposition","attachment;filename="
                + "data.txt");
        BufferedOutputStream buff = null;
        ServletOutputStream outStr = null;
        try {
            outStr = response.getOutputStream();
            buff = new BufferedOutputStream(outStr);
            buff.write(text.getBytes("UTF-8"));
            buff.flush();
            buff.close();
        } catch (Exception e) {
            //LOGGER.error("导出文件文件出错:{}",e);
        } finally {try {
            buff.close();
            outStr.close();
        } catch (Exception e) {
            //LOGGER.error("关闭流对象出错 e:{}",e);
        }
        }
    }