python-django文件上传和分页功能笔记

文件上传：
    1.配置路径
        文件上传时，文件数据存储在request.FILES属性中
        一般文件都存储到服务器的static目录下的upfile文件夹下

        在setting.py文件中配置路径：
            #静态文件目录
            STATICFILES_DIRS=[
                os.path.join(BASE_DIR,'static')
            ]
            #文件上传目录
            MDEIA_ROOT=os.path.join(BASE_DIR,r'static\upfile')
    2.定义文件跳转路径
        在前台的urls.py文件中配置请求路径：
             path('upfile/',views.upfile),
             path('saveFile/',views.saveFile),
    3.定义upfile.html文件
        <!DOCTYPE html>
        <html lang="en">
        <head>
            <meta charset="UTF-8">
            <title>文件上传</title>
        </head>
        <body>
            <form action="/saveFile/" method="post" enctype="multipart/form-data">
                {% csrf_token %}
                文件：<input type="file" name="file"/>
                <input type="submit" name="sbt" value="上传"/>
            </form>
        </body>
        </html>
    4.在views.py文件中定义跳转和上传方法
        def upfile(request):
            return render(request,"front/upfile.html")
        import os
        from django.conf import settings
        def saveFile(request):
            if request.method == 'POST':
                f = request.FILES['file']
                filePath = os.path.join(settings.MDEIA_ROOT,f.name)
                with open(filePath,'wb') as fp:
                    for info in f.chunks():
                        fp.write(info)
                return HttpResponse("上传成功！")
            else:
                return HttpResponse("上传失败！")
#分页功能
    1.定义urls.py
          path('userList/<pageNum>/',views.userList),
    2.定义views.py
        from .models import UserInfo
        from django.core.paginator import Paginator
        def userList(request,pageNum):
            #获取所有用户
            allList = UserInfo.objects.all()
            #获取分页对象(总数，每页条数)
            paginator = Paginator(allList,2)
            page = paginator.page(pageNum)
            return render(request,"front/userList.html",{"userinfos":page})
    3.定义userList.html页面
        <!DOCTYPE html>
        <html lang="en">
        <head>
            <meta charset="UTF-8">
            <title>分页功能</title>
            <style>
                table{
                    width:300px;
                    height:200px;
                    border:1px solid grey;
                    border-collapse:collapse;
                }
                table td{
                    width:50px;
                    border:1px solid grey;
                    border-collapse:collapse;
                }
                ul li{
                    float:left;
                    list-style:none;
                    margin-right:10px;
                }
            </style>
        </head>
        <body>
            <table>
                {% for user in userinfos %}
                    <tr>
                        <td>{{ user.id }}</td>
                        <td>{{ user.username }}</td>
                        <td>{{ user.password }}</td>
                        <td>{{ user.sex }}</td>
                        <td>{{ user.age }}</td>
                        <td>{{ user.isDelete }}</td>
                    </tr>
                {% endfor %}
            </table>
            <ul>
                {% for index in userinfos.paginator.page_range %}
                <li>
                    <a href="/userList/{{index}}/">{{index}}</a>
                </li>
                {% endfor %}
            </ul>
        </body>
        </html>
python-django文件上传和分页功能笔记

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