JavaWeb之Response文件下载(中文编码问题)

很久以前遇到过这样的问题，最近再次遇到，做个记录。

核心代码如下(这里采用Excel导出是EasyPoi):

@RequestMapping("/downloadPost")
   public void downloadPost(HttpServletResponse response) {
       try {
           Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams("博客园文章数据", "博客园文章数据"),
                   PostExcelEntity.class, postService.selectBasePostDataList());
           // 指定下载的文件名--设置响应头
           response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode("博客园文章数据.xls", "UTF-8"));
           response.setContentType("application/vnd.ms-excel;charset=UTF-8");
           response.setHeader("Pragma", "no-cache");
           response.setHeader("Cache-Control", "no-cache");
           response.setDateHeader("Expires", 0);
           // 写出数据输出流到页面
           OutputStream output = response.getOutputStream();
           BufferedOutputStream bufferedOutPut = new BufferedOutputStream(output);
           workbook.write(bufferedOutPut);
           bufferedOutPut.flush();
           bufferedOutPut.close();
           output.close();
       } catch (IOException e) {
           e.printStackTrace();
       }
   }