django前端到后端一次完整请求实例

一、创建项目：
# django-admin startproject mysite
# cd mysite
# python manage.py startapp blog

目录结构：

　　

一、html文件:templates/userInfo.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<h1>数据提交：</h1>
<form action="/userInfo" method="post">
    <p>姓名<input type="text" name="username"></p>
    <p>性别<input type="text" name="sex"></p>
    <p>邮箱<input type="text" name="email"></p>
    <p><input type="submit" name="submit"></p>
</form>

<hr>
<h1>数据展示：</h1>
<table border="1">
        <tr>
            <td>姓名</td>
            <td>性别</td>
            <td>邮箱</td>
        </tr>
        {% for i in user_list %}
            <tr>
                <td> {{ i.username }} </td>
                <td>{{ i.sex }} </td>
                <td>{{ i.email }} </td>
            </tr>
        {% endfor %}

</table>
</body>
</html>

二、修改配置文件：settings.py

INSTALLED_APPS = [
    'blog',  # 增加一个app
]

MIDDLEWARE = [
    #'django.middleware.csrf.CsrfViewMiddleware',  # 涉及到表单提交，这里把csrf相关注释了
]
TEMPLATES 部分加入：

'DIRS': [os.path.join(BASE_DIR,"templates")],   # 存放HTML文件的地方

二、修改urls.py 文件：

from blog import views

urlpatterns = [
    url("userInfo",views.userInfo),
]

三、编写对应视图函数：views.py

from django.shortcuts import render,HttpResponse

from  blog import models
def userInfo(request):
    #return HttpResponse("<h1>xxx</h1>")
    if request.method == "POST":
        u = request.POST.get("username",None)
        s = request.POST.get("sex",None)
        e = request.POST.get("email",None)
        models.UserInfo.objects.create(
            username=u,
            sex = s ,
            email = e,
        )
    user_list=models.UserInfo.objects.all()
    return render(request,"userInfo.html",{"user_list":user_list})

四：编写models.py :

from django.db import models
class UserInfo(models.Model):
    username = models.CharField(max_length=64)
    sex = models.CharField(max_length=64)
    email = models.CharField(max_length=64)

#执行下面语句初始化数据库：
#python manage.py makemigrations
#python manage.py migrate

五、打开html访问：