JS使用文件流上传PDF,EXCEL,WORD等格式文件

const customRequest = async (option: any) => {

        const formData = new FormData();
        const type = option.file.type;
        if (!type.includes('pdf')) {
            message.warning('文件格式错误');
            return false;
        }
        formData.append('file', option.file)
        const req = await service({
            method: "POST",
            url: url,
            headers: {
                'Content-Type': 'multipart/form-data',

            },
            data: formData,
        });
        if (!req) {
            message.warning('上传失败');
            return false;
        }
        form.setFieldsValue({
            bmyj: req.data
        })
        message.success('上传成功，请保存数据');
        return true;

    }
     <Upload customRequest={customRequest} fileList={[]}  >
                                <Button icon={<UploadOutlined />}>附件上传</Button>
                            </Upload>