一、项目预览：（关于喜羊羊与灰太狼简介项目）

二、功能介绍

1、主要用户可以进行注册账号，登录信息进入首页当中，修改密码，修改个人信息及个人头像。（数据库信息）。

2、观看喜羊羊与灰太狼的简单的介绍信息。

三、项目前期配置

1、创建一个django项目。

2、在 yangcun项目中创建一个app （在工具栏中选中Run manage.py Task...）在框中输入 startapp (app名)  创建app。

3、注册app（在settings.py配置文件中找到INSTALLED_APPS在里面注册app），以及配置settings文件。

4、创建文件夹。

       在users app中创建一个static文件夹，以及templates文件夹、把views.py文件删除，创建views文件夹、创建一个urls.py文件。在yangcun文件夹中创建一个media文件夹。

 5、打开yangcun文件夹中的urls.py文件，在里面输入如下代码：

yangcun>urls.py:

from django.urls import path,include,re_path
from django.views.static import serve
from django.conf import settings
from django.conf.urls.static import static


urlpatterns = [
    path('user/', include("users.urls")),
    re_path('^media/(?P<path>.*)$', serve, {'document_root' : settings.MEDIA_ROOT}),
] + static(settings.MEDIA_URL,document_root=settings.MEDIA_ROOT)

四、后端完整代码

在users>models.py中:

from django.db import models

# Create your models here.


# 用户表
class User(models.Model):
    name = models.CharField(verbose_name="用户名",max_length=64)
    account = models.CharField(verbose_name="账号",max_length=64)
    password = models.CharField(verbose_name="密码",max_length=64)
    img = models.ImageField(verbose_name="头像",max_length=255,upload_to="imgs",null=True)
    age = models.IntegerField(verbose_name="年龄",null=True)
    sex = models.CharField(verbose_name="性别",max_length=11,null=True)  # True 是 男生   False 是女生
    phone = models.CharField(verbose_name="联系方式",max_length=11,null=True)
    introduction = models.TextField(verbose_name="个人简介",null=True)
    time = models.DateTimeField(verbose_name="注册时间",auto_now=True)

然后执行：python3 manage.py makemigrations 和 Python3 manage.py migrate

在users>urls.py中：

"""yangcun URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.2/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.urls import path
from users.views import login,index

urlpatterns = [
    # 登录
    path('login/',login.login,name="login"),            # 登录
    path('logout/',login.logout,name="logout"),         # 注销
    path('register/',login.register,name="register"),   # 注册
    path('password/',login.password,name="password"),   # 忘记密码

    # 首页
    path('index/',index.index,name="index"),            # 首页
    path('center/',index.center,name="center"),         # 个人中心
    path('works/',index.works,name="works"),            # 作品简介
    path('role/',index.role,name="role"),               # 角色简介
]

在users>views>index.py中:    (vindex.py需要自己创建)

from django.shortcuts import render,HttpResponse,redirect
from users import models
from users.models import User
# Create your views here.
# 首页
def index(request):
    print(request.session.get("account"))
    print(request.session.get("name"))
    return render(request,"index.html")

# 个人中心
def center(request):
    if request.method == "GET":
        account = request.session.get("account")    # 账号
        print(account)
        user_info = models.User.objects.filter(account=account).first()
        print(user_info.sex)
        print(user_info.img)
        print(request.session.get("img"))
        return render(request,"center.html",{"user_info":user_info})
    account = request.POST["account"]   # 账号
    name = request.POST["name"]         # 用户名
    img_file = request.FILES.get("img") # 头像
    age = request.POST["age"]           # 年龄

    sex = request.POST["sex"]           # 性别

    phone = request.POST["phone"]       # 联系方式
    introduction = request.POST["introduction"]     # 个人简介
    print(account)
    print(img_file)
    user_info = models.User.objects.exclude(account=account)
    for i in user_info:
        if i.phone == phone:
            err = "联系方式错误或重复！"
            return render(request,"center.html",{"err":err})
    # 修改

    info = User.objects.get(account=account)
    info.name = name
    if img_file == None:
        pass
    else:
        info.img = img_file
    info.age = age
    if sex == "男":
        info.sex = "男"
    elif sex == "女":
        info.sex = "女"
    else:
        err = "性别输入错误，请重新输入！"
        return render(request,"center.html",{"err":err})
    info.phone = phone
    info.introduction = introduction
    info.save()
    request.session['account'] = account  # 账号
    request.session['name'] = name  # 用户名
    user_info = models.User.objects.filter(account=account).first()
    request.session['img'] = str(user_info.img)   # 头像路径
    request.session['qx'] = 1  # 权限
    return redirect("/user/center/")


# 作品简介
def works(request):
    return render(request,"works.html")

# 角色简介
def role(request):
    return render(request,"role.html")

在users>views>login.py中：        （login.py需要自己创建）

from django.shortcuts import render,HttpResponse,redirect
from users import models
from users.models import User
# Create your views here.


# 注销
def logout(request):
    request.session.clear()
    return redirect("/user/login/")

# 登录页面
def login(request):
    if request.method == "GET":
        return render(request,'login.html')
    account = request.POST["account"]
    password = request.POST["password"]
    user_info = models.User.objects.all()
    for i in user_info:
        if account == i.account and password == i.password:
            request.session['account'] = i.account  # 账号
            request.session['name'] = i.name        # 用户名
            request.session['img'] = str(i.img)     # 头像
            request.session['qx'] = 1   #   权限
            return redirect("/user/index/")
    err = "账号或者密码错误请重新输入！"
    return render(request,'login.html',{"err":err})


# 注册页面
def register(request):
    if request.method == "GET":
        return render(request,'register.html')
    name = request.POST['name']             # 用户名
    account = request.POST['account']       # 账号
    password1 = request.POST['password1']   # 密码1
    password2 = request.POST['password2']   # 密码2
    user_info = models.User.objects.all()   # 用户信息
    err = ""    # 错误信息
    flag = 1
    for i in user_info:
        # 用户登录
        if account == i.account:
            err = "账号重复请重输！"
            flag = 0
        elif password1 != password2:
            err = "密码不一致请重输！"
            flag = 0
    if flag == 1:
        info = User()
        info.name = name
        info.account = account
        info.password = password1
        info.save()
        print("保存成功!")

        return redirect("/user/login/")
    else:
        return render(request,'register.html',{"err":err})


# 忘记密码
def password(request):
    if request.method == "GET":
        return render(request,'password.html')
    account = request.POST["account"]       # 账号
    password = request.POST["password1"]    # 原密码
    new_password = request.POST["password2"]# 新密码
    user_info = models.User.objects.all()   # 用户信息
    for i in user_info:
        if account == i.account and password == i.password:
            info = User.objects.get(account=account)
            info.password = new_password
            info.save()
            return redirect("/user/login/")
    err = "账号和密码错误请重输！"
    return render(request,'password.html',{"err":err})