插入图片失败

问题描述：

插入图片失败，找不出原因，看报错部分图片名字是日期格式，应该访问到了后端，还报404，无法加载wangEditor.min.js.map。wangEditor有点不明白，设置了上传地址，上传图片参数，是editor.create();上传的吗？后端返回的result怎么接收呢，保存到哪里呢？好像没看到相关代码。

相关截图：

相关截图：

相关代码：

        showDialog(model, data) {
                this.dialogModel = model;
                if (model == "create") {
                    this.dialogTitle = "新增图书";
                    this.form.categoryId = "1";
                    this.form.bookName = "";
                    this.form.subTitle = "";
                    this.form.author = "";
                    this.form.description = "";
                    this.dialogFormVisible = true;
                } else if (model == "update") {
                    if (data != null) {
                        this.dialogTitle = "更新图书";
                        this.form = data;
                        this.form.categoryId = this.form.categoryId.toString();
                        this.dialogFormVisible = true;
                    }
                }
                //实例化wangEditor富文本编辑器
                editor = new wangEditor(this.$refs.editor);
                //设置上传图片的地址
                editor.customConfig.uploadImgServer = '/api/management/book/upload';//设置图片上传地址
                //默认上传时使用的参数名
                editor.customConfig.uploadFileName = 'img';//设置图片上传参数
                editor.create();//创建wangEditor
                //设置初始内容
                editor.txt.html(this.form.description);
            }

相关代码：

   @PostMapping("/upload")
    public Map upload(@RequestParam("img") MultipartFile file , HttpServletRequest request) throws IOException {
        //得到上传文件目录
        String uploadPath = request.getServletContext().getResource("/").getPath() + "/upload/";
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");
        String fileName = sdf.format(new Date());
        //abc.jpg
        String suffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
        //将文件上传到指定位置
        file.transferTo(new File(uploadPath + fileName + suffix));
        Map result = new LinkedHashMap();
        result.put("errno", 0);
        result.put("data", new String[]{"/upload/" + fileName + suffix});
        return result;
    }