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Django-文件上传下载

Django中文件上传下载

上传

  • form表单上传
  • ajax上传
上传

上传可以分为form表单和ajax两种方式。

form表单上传

示例：

url.py配置

from django.conf.urls import url
from django.contrib import admin
from app01 import views

urlpatterns = [
　　　　url(r'^admin/', admin.site.urls),
　　　　url(r'^file_upload/', views.file_upload), 
]

views.py

def file_upload(request):
    """
    form表单上传文件
    :param request:
    :return:
    """
    if request.method == "POST":
        f1 = request.FILES.get("f1")
        with open(f1.name, "wb") as f:
            for i in f1.chunks():  # 一段一段去拿f1.chunks()
                f.write(i)
    return render(request, "form_upload.html")

form_upload.html

<div>
    <form action="" method="post" enctype="multipart/form-data">
        {% csrf_token %}
        <input type="file" name="f1">
        <input type="text" name="user">
        <input type="submit" value="提交">
    </form>
</div>

ajax上传文件

views.py

def file_upload(request):
    """
    文件上传
    :param request:
    :return:
    """
    if request.method == "POST":
        f1 = request.FILES.get("f1","")
        if f1:
            with open(f1.name,"wb") as f:
                for i in f1.chunks():
                    f.write(i)
            return JsonResponse({"status":True,"data":"上传成功"})
        return JsonResponse({"status":False,"data":"上传文件不能为空"})
    return render(request,"file_upload.html")
file_upload.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>ajax上传文件</title>
</head>
<body>
<input type="file" id="f1">
{% csrf_token %}
<button id="b1">上传</button>

<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
    $(function () {
        bindBtnClick();
    });
    function bindBtnClick(){
        $("#b1").click(function () {
            var form_boj = new  FormData(); # 实例化一个formdate对象
            form_boj.append("f1",$("#f1")[0].files[0]); # jquery获取文件对象
            form_boj.append("csrfmiddlewaretoken",$("[name='csrfmiddlewaretoken']").val()) # 处理csrftoken
            $.ajax({
                url:{% url 'file_upload' %},
                type:"post",
                data:form_boj,
                processData:false, # 不需要处理数据的编码格式
                contentType:false, # 不需要处理contentType的请求头
                success:function (res) {
                    console.log(res.data);
                    if (res){
                        alert(res.data)
                    }else{
                        alert(res.data)
                    }
                }
            })
        })
    }

</script>

</body>
</html>
下载

view.py

from django.utils.encoding import escape_uri_path  # 包含中文
from django.http import FileResponse

def download_case_report(request, pk):
    """下载用例的执行报告，pk是用例的pk"""
    # 下载数据库中存放的html报告
    api_obj = models.Api.objects.filter(pk=pk).first()
    # 下载
    response = FileResponse(api_obj.api_report)
    response['Content-Type'] = 'application/octet-stream'
    response['Content-Disposition'] = 'attachment;filename="{0}.{1}"'.format(escape_uri_path(api_obj.api_name), "html")
    return response


def download_local_file(request):
    """下载本地文件"""
    file = open("models.py", "rb")
    # 下载
    response = FileResponse(file)
    response['Content-Type'] = 'application/octet-stream'
    response['Content-Disposition'] = 'attachment;filename="{0}.py"'.format(escape_uri_path("中文"))
    return response

 

posted on 2021-02-24 09:47  赛兔子  阅读(135)  评论(0)  编辑  收藏  举报

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