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  • Django实例(3)-用户连数据库登入系统

    App01--->urls.py

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

    urlpatterns = [
        url(r'^login/', views.login),
        url(r'^index/', views.index),
        url(r'^user_info/', views.user_info),
        url(r'^userdetail-(?P<nid>d+)/', views.user_detail),
        url(r'^userdel-(?P<nid>d+)/', views.user_del),
        url(r'^useredit-(?P<nid>d+)/', views.user_edit),
        url(r'^orm/', views.orm),
    ]

    Urls.py
    from django.contrib import admin
    from django.conf.urls import url,include

    urlpatterns = [
        url(r'^cmdb/',include('app01.urls')),
        # url(r'^monitor/',include('app02.urls')),
    ]

    App--->Views.py

    from django.shortcuts import render,HttpResponse,redirect
    from app01 import models
    def orm(reqbuest):
        # 创建表
        # models.UserInfo.objects.create(username='root',password='123')
        # dic={'username':'eric','password':'666666'}
        # models.UserInfo.objects.create(**dic)
        # obj=models.UserInfo(username='root1',password='123456')
        # obj.save()

        # 查询表
        # result= models.UserInfo.objects.all()
        # result,QuerySet =>Django=>[]
        #[obj(id,username,password),obj(id,username,password),obj(id,username,password)]
        # result = models.UserInfo.objects.filter(username='root',password='123')
        # for row in result:
        #     print(row.id,row.username,row.password)

        #删除
        # models.UserInfo.objects.filter(id='2').delete()

        # 更改
        models.UserInfo.objects.filter(id='3').update(password='666666')
        return HttpResponse('orm')

    def login(request):
        if request.method=="GET":
            return render(request,'login.html')

        elif request.method=="POST":
            # 数据库中执行 select * from user where username='x' and password='x'
            u=request.POST.get('user')
            p=request.POST.get('pwd')
            obj= models.UserInfo.objects.filter(username=u,password=p).first()
            # count = models.UserInfo.objects.filter(username=u, password=p).count()
            if obj:
                return redirect('/cmdb/index/')
            else:
                return render(request,'login.html')

        else:
            return redirect('/index/')

    def index(request):
        return render(request,'index.html')

    def user_info(request):
        if request.method=="GET":
            user_list= models.UserInfo.objects.all()
            # print(user_list.query)
            # QuerySet [obj,obj]
            return render(request,'user_info.html',{'User_List':user_list})
        elif request.method=="POST":
            u=request.POST.get('user')
            p=request.POST.get('pwd')
            models.UserInfo.objects.create(username=u,password=p)

            return redirect('/cmdb/user_info/')

    def user_detail(request,nid):
        obj=models.UserInfo.objects.filter(id=nid).first()
        # models.UserInfo.objects.get(id=nid) 如果没有数据会报错
        return render(request,'user_detail.html',{'OBJ':obj})

    def user_del(request,nid):
        models.UserInfo.objects.filter(id=nid).delete()
        return redirect('/cmdb/user_info/')

    def user_edit(request,nid):
        if request.method=="GET":
            obj=models.UserInfo.objects.filter(id=nid).first()
            return render(request,'user_edit.html',{'OBJ':obj})
        elif request.method=="POST":
            nid=request.POST.get('id')
            u=request.POST.get('username')
            p=request.POST.get('password')
            models.UserInfo.objects.filter(id=nid).update(username=u,password=p)
            return redirect('/cmdb/user_info/')

    App01--->models.py

    from django.db import models

    #app01_userinfo
    class UserInfo(models.Model):
        # id列,自增,主键
        # 用户名列,字符串类型,指定长度
        username=models.CharField(max_length=64)
        password=models.CharField(max_length=64)

    Tempalte--->login.html

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        <form action="/cmdb/login/" method="post" enctype="multipart/form-data">
            <p>
                <input type="text" name="user" placeholder="用户名">
            </p>
            <p>
                <input type="password" name="pwd" placeholder="密码">
            </p>
            <p>
                <input type="submit" value="提交">
            </p>
        </form>
    </body>
    </html>

    Templates--->index.html

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style>
            body{
                margin:0;
            }
            .menu{
                display: block;
                padding: 5px;
            }
        </style>
    </head>
    <body>
        <div style="height: 48px;background-color: black;color: white;">
            
        </div>
        <div>
            <div style="position: absolute;top:48px;bottom: 0;left: 0;width: 500px;background-color: brown">
                <a class="menu" href="/cmdb/user_info/">用户管理</a>
                <a class="menu" href="/cmdb/user_group/">用户组管理</a>
            </div>
            <div style="position: absolute;top:48px;left:520px;bottom: 0;right: 0;overflow: auto">
                
            </div>
        </div>
        
    </body>
    </html>

    Templates--->user_info.html

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style>
            body{
                margin:0;
            }
            .menu{
                display: block;
                padding: 5px;
            }
        </style>
    </head>
    <body>
        <div style="height: 48px;background-color: black;color: white;">

        </div>
        <div>
            <div style="position: absolute;top:48px;bottom: 0;left: 0;width: 500px;background-color: brown">
                <a class="menu" href="/cmdb/user_info/">用户管理</a>
                <a class="menu" href="/cmdb/user_group/">用户组管理</a>
            </div>
            <div style="position: absolute;top:48px;left: 520px;bottom: 0;right: 0;overflow: auto">
                <h3>添加用户</h3>
                <form method="POST" action="/cmdb/user_info/">
                    <input type="text" name="user">
                    <input type="text" name="pwd">
                    <input type="submit" value="添加">
                </form>
                <h3>用户列表</h3>
                <ul>
                    {% for row in User_List %}
                        <li><a href="/cmdb/userdetail-{{ row.id }}/">{{ row.username }}</a> |
                            <a href="/cmdb/userdel-{{ row.id }}/">删除</a> |
                            <a href="/cmdb/useredit-{{ row.id }}/">编辑</a> |
                        </li>
                    {% endfor %}
                </ul>
                <ul>

                </ul>


            </div>
        </div>

    </body>
    </html>

    Templates--->user_edit.html

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style>
            body{
                margin:0;
            }
            .menu{
                display: block;
                padding: 5px;
            }
        </style>
    </head>
    <body>
        <div style="height: 48px;background-color: black;color: white;">

        </div>
        <div>
            <div style="position: absolute;top:48px;bottom: 0;left: 0;width: 500px;background-color: brown">
                <a class="menu" href="/cmdb/user_info/">用户管理</a>
                <a class="menu" href="/cmdb/user_group/">用户组管理</a>
    {#            <a class="menu"></a>#}
            </div>
            <div style="position: absolute;top:48px;left:520px;bottom: 0;right: 0;overflow: auto">
                <h1>编辑用户</h1>
                    <form method="post" action="/cmdb/useredit-{{ OBJ.id }}/">
                        <input style="display: none" type="text" name="id" value="{{ OBJ.id }}"/>
                        <input type="text" name="username" value="{{ OBJ.username }}"/>
                        <input type="text" name="password" value="{{ OBJ.password }}"/>
                        <input type="submit" value="提交">
                    </form>
            </div>
        </div>

    </body>
    </html>

    Templates--->user_detail.html

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style>
            body{
                margin:0;
            }
            .menu{
                display: block;
                padding: 5px;
            }
        </style>
    </head>
    <body>
        <div style="height: 48px;background-color: black;color: white;">

        </div>
        <div>
            <div style="position: absolute;top:48px;bottom: 0;left: 0;width: 500px;background-color: brown">
                <a class="menu" href="/cmdb/user_info/">用户管理</a>
                <a class="menu" href="/cmdb/user_group/">用户组管理</a>
            </div>
            <div style="position: absolute;top:48px;left: 520px;bottom: 0;right: 0;overflow: auto">
                <h1>用户详细信息</h1>
                <h5>id: {{ OBJ.id }}</h5>
                <h5>username: {{ OBJ.username }}</h5>
                <h5>password: {{ OBJ.password }}</h5>
            </div>
        </div>

    </body>

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  • 原文地址:https://www.cnblogs.com/leiwenbin627/p/10993654.html
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