上传图片

<form action="add" method="post" enctype="multipart/form-data">
    日期：<input type="date" name="date" value=""><br>
    类型：<select name="t_id">
        <c:forEach items="${types}" var="t">
            <option value="${t.t_id}">${t.type}
        </c:forEach>
    </select>
    <br>
    题目：<input type="text" name="title" onblur="ti()" value="">
    <br>
    图片：<input type="file" name="myfile" value="">
    <br>
    <button>提交</button>
</form>

@SuppressWarnings("deprecation")
    @RequestMapping("add")
    public Object add(MultipartFile myfile,HttpServletRequest request,Car car) throws IllegalStateException, IOException {
        String string = UUID.randomUUID().toString();
        String realPath = request.getRealPath("/load/");
        File file = new File(realPath+string);
        myfile.transferTo(file);
        car.setVivo(string);
        service.save(car);
        redisTemplate.opsForValue().set("car", car);
        System.err.println("保存入redis中");
        kafkaTemplate.send("car", "car");
        System.err.println("发送至卡夫卡");
        return "redirect:findAll";
    }