Django实现图片上传

男娘i 2022-10-22 11:55 281阅读 0赞

# 前言 #

最近开发图片上传，只是上传到项目根目录下面的一个文件夹里

--------------------

# 代码实现 #

*  1.首先在项目settings

MEDIA_URL = '/media/'
    MEDIA_ROOT = os.path.join(BASE_DIR, 'media')

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70 1]

from django.contrib.staticfiles.urls import staticfiles_urlpatterns
    from django.contrib import staticfiles
    from django.contrib.staticfiles.urls import static
    from . import settings
    
    urlpatterns += staticfiles_urlpatterns()
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

*  具体方法实现：

# 接收前端传递图片
    @csrf_exempt
    def get_jpg(request):
        if request.method == 'POST':
            fp = request.FILES.get('image', None)
            if fp:
                try:
                    print('======')
                    file = 'image'
                    path = settings.MEDIA_ROOT
                    pic_path = path + '/' + file
                    isExists = os.path.exists(pic_path)  # 路径存在则返回true，不存在则返回false
                    if isExists:
                        print("目录已存在")
                    else:
                        os.mkdir(pic_path)
                    img_url = pic_path + '/' + fp.name
                    with open(img_url, 'wb') as f:  # 将图片以二进制的形式写入
                        for data in fp.chunks():
                            f.write(data)
                    pic_data = 'http://127.0.0.1:8080/media' + '/' + 'image' + '/' + fp.name
                    # 调用算法模型：
                    cv2img = getNdarraybyInMemoryUploadedFile(fp)
                    title_science_report = get_title_science_report(cv2img)
                except BaseException:
                    cv2img =0
            openid = request.POST.get('openid')
            if openid is not None:
                try:
                    obj = models.RequestUser.objects.get(oppend_id=openid)
                except Exception:
                    obj = None
                if obj is not None:
                    obj.update_time = timezone.now()
                    obj.update_user = '生成报告'
                    obj.score = cv2img
                    obj.report = title_science_report[2]
                    obj.science = title_science_report[1]
                    obj.title = title_science_report[0]
                    obj.save()
            if title_science_report is not None:
                return JsonResponse({ 
                    'result': 200,
                    'score': cv2img
                })
            return JsonResponse({ 
                'result': 200,
                'score': 23
            })

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70]: /images/20221022/0bf815e44ef345afb2ae4aef2f2d09f4.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70 1]: /images/20221022/bb3872adffbf444a9ce9e41b471de972.png