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django之创建第8-1个项目-数据库之增删改查/数据库数据显示在html页面

时间：2021-07-01 10:21:17 帮助过：3人阅读

-*- coding: UTF-8 -*- from django.conf.urls import patterns, include, url urlpatterns = patterns(‘blog.views‘, url(r‘^index/$‘, ‘index‘), url(r‘^time/$‘, ‘time‘), url(r‘^shengfen/$‘, ‘shengfen‘), #url(r‘^foo/(\d{4})/$‘, ‘foo‘), #表示接收4个数字,#\w+接收至少一个字母 url(r‘^foo/(\d{4})/(\w+)/$‘,"foo"), url(r‘^bar/(?P<id>\d{4})/(?P<name>\w+)/$‘,‘bar‘),#强制规定bar(request,id,name)处的参数必须为id和name url(r‘^student_list/$‘,‘student_list‘),#当浏览器打开此网址时，输出html页面的结果（html页面定义了从数据库抓取数据的代码） )

3、配置views.PY文件

# Create your views here.
#coding:utf-8
from django.http import HttpResponse
import datetime
#导入templates文件所需导入库
from django.template import loader,Context
#引入models模块中的Student等类
from blog.models import *


def student_list(request):
    t=loader.get_template("student_list.html")
    studentList = Student.objects.all()  # 等价于 select * from student
    c=Context({"studentList":studentList})
    return HttpResponse(t.render(c))

class Person():

    def __init__(self,name,age,sex):
        self.name=name
        self.age=age
        self.sex=sex

    def myMethod(self):
        return "get it"

def time(request):
    t = loader.get_template("time.html")
    myId = request.GET.get("id")
    myName = request.GET.get("name")#获取传递的name的value值
    user = {"today": datetime.datetime.now(),"id":myId,"name":myName}
    c = Context(user)
    return HttpResponse(t.render(c))

def foo(request,myID,myName):
    t = loader.get_template("foo.html")
    user = {"today": datetime.datetime.now(),"id":myID,"name":myName}
    c = Context(user)
    return HttpResponse(t.render(c))

def bar(request,id,name):
    t = loader.get_template("bar.html")
    user = {"today": datetime.datetime.now(),"id":id,"name":name}
    c = Context(user)
    return HttpResponse(t.render(c))

def shengfen(request):
    t = loader.get_template("shengfen.html")
    user = {"shengfen":"湖北省恩施市"}
    c = Context(user)
    return HttpResponse(t.render(c))

def index(request):
    #加载器，加载模板
    t=loader.get_template("index.html")

    # django之创建第4-1个项目-Dict形式
    user = {"name": "xiaodeng", "sex": "male", "age": 28,"today":datetime.datetime.now()}
    c = Context({"test": user})  # 在这里test位变量，user为变量的值
    return HttpResponse(t.render(c))

4、创建student_list.html文件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<li>遍历数据库student中的数据</li>
{% for student in studentList %}
    <li>{{student}}</li>  <!--Student objec-->
{% endfor %}

<br>
{% for student in studentList %}
    <li>{{student.name}},{{student.age}}</li>
{% endfor %}

</body>
</html>

5、启动服务器，manage.py runserver

6、打开 http://127.0.0.1:8000/blog/student_list/

7、百度云盘：django之创建第8-1个项目-数据库之增删改查/数据库数据显示在html页面

django之创建第8-1个项目-数据库之增删改查/数据库数据显示在html页面

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django之创建第8-1个项目-数据库之增删改查/数据库数据显示在html页面

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