Java在实现导出时，可设置响应头的内容，来设置响应的编码格式、响应类型、以及中文乱码问题等

public static HttpServletResponse setResponse(HttpServletResponse response, String fileName, String fileType) {
        if (StringUtils.isBlank(fileName)) {
            throw new RuntimeException("请设置导出的文件名");
        }
        // 设置响应类型
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        // 设置编码格式
        response.setCharacterEncoding("UTF-8");
        // 设置URLEncoder.encode 防止中文乱码
        try {
            fileName = URLEncoder.encode(fileName, "UTF-8").replace("\\+", "%20");
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }
        // 设置响应头
        // 1、下面请求头 浏览器下载正常，但是postman下载文件名称乱码
        response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + fileType);
        // response.setHeader("Content-disposition", "attachment;filename=utf-8" + fileName + ".xlsx");
        return response;
    }