windows10 -- mysql5.5 + python3.4 + django1.11 +pycharm2016.2 + PyMySQL(DB DRIVER) 环境搭建

环境介绍

2016-07-2513:32:26

name	value	comment
OS	win10	操作系统
python	python3.4	python主程序
IDE	pycharm:  201.2	python IDE集成开发环境
框架	django:  1.11	web开发框架，类似与Struts（JAVA）
DB	mysql: 5.5	(在centos 上使用二进制安装，你可以直接安装在win10上面)    ----- 一款nc的开源数据库
connector	PyMySQL	python connector

作者一路飘来的坑

这就是自己探索的代价，一个小问题都可能停滞1天，或者2天，或者一周

但是，这就是探索的乐趣所在

• pycharm 无法创建django project，只能创建pure python
  • 　　因为pycharm的community版本没有，需要下载professional版本，要注册码，自己百度搞定
• python死活连接不上mysql   ----  django内置了sqlite，无需安装，直接使用，但是生产环境一般还是使用mysql，所以这个问题必须解决
  • 　　需要再windows上下载一个DBdriver，我的理解就是一个客户端去驱动连接数据库，python不能直接连接，毕竟db认sql语言，不认识python对吧
  • 看介绍：可以安装mysqlclient,connector/python，其实都有问题，因为python3.4太新了(20160725)，使用pymysql代替

软件下载

1. python: python3.4      www.python.org  这个如果都找不到就不要学python了
2. pycharm:  2016.2        http://www.jetbrains.com/pycharm/download/#section=windows  这个注意，请下载 professional 版本
3. django:  1.11              https://www.djangoproject.com/download/      可以源码安装，也可以pip 安装
4. mysql: 5.5(在centos 上使用二进制安装，你可以直接安装在win10上面)
5. connector: PyMySQL    git clone https://github.com/PyMySQL/PyMySQL  如果不熟悉git，可以直接打开后面的网址在网页端下载

软件安装

python

　　下一步，下一步，一下到底，安装位置作者放在了   C:\Python34

pytharm

　　下一步，下一步，一下到底

django

　　方式1   将源代码解压，放到C盘下面吧-----win+r-----cmd---cd c:\dj  ---- python setup.py

　　方式2    ---win+r-----cmd-----pip install django=1.9.2   建议安装这个版本（20160725）

mysql5.5

　　方式1 下载windows版本的installer ,一下到底

　　方式2  使用centos6.5，然后下载bin版本的安装（作者采用的方式）

PyMySQL

　　安装方式和django差不多，进入windows的cmd界面，cd到软件解压目录，然后 python setup.py install

django和pymysql都会安装下面的目录

C:\Python34\Lib\site-packages

创建工程

..1 new---new project

建立好的工程目录类似这个样子

这里可以再多建立几个APP

到现在为止基本的矿机已经完成了，恭喜我自己

..2 让django跑起来

点击工具栏的run

然后在本地打开浏览器输入:    http://127.0.0.1:8000/admin

没错，你就成功了，这个系统已经跑起来了，并且你看见了django非常强大的自动生成的一个后台管理界面

..3 让django连接上数据库mysql

..3.1 常见数据库的model

 class UserInfo(models.Model):
     name = models.CharField(max_length=32)
     email = models.CharField(max_length=32)
     comment = models.CharField(max_length=32)
     age = models.IntegerField()
     password = models.CharField(max_length=32,default="")

     # def __str__(self):
     #     s = {"id": self.id, "name": self.name, "email": self.email}
     #     return s
     def __str__(self):
         return self.name

projectname/appname/models.py

..3.2 配置数据库连接

/projectname/settings.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'django_db',
        'USER':  'root',
        'PASSWORD': '',
        'HOST': '192.168.202.104',
        'PORT': '',
    }
}
..3.3 初始化安装你的app
注意后面一定要有逗号，app01 and app02 就是作者自己建立的两个app， 我使用app02,稍后你可以看见设置

 INSTALLED_APPS = [
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'app01',
     'app02',
 ]

..3.4 在数据库中建表

manage.py这个时候可以登场了

使用pycharm提供的terminal

python manage.py makemigrations

python manage.py migrate

如果一切正常，你已经在数据库中建表格了，如果有意外，你可以在数据库中先建好db,然后使用这两条命令插入表

..3.5 编写代码对数据库进行增删改查，使用ORM

..3.5.1

 """first_django_project URL Configuration

 The `urlpatterns` list routes URLs to views. For more information please see:
     https://docs.djangoproject.com/en/dev/topics/http/urls/
 Examples:
 Function views
     1. Add an import:  from my_app import views
     2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
 Class-based views
     1. Add an import:  from other_app.views import Home
     2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
 Including another URLconf
     1. Import the include() function: from django.conf.urls import url, include
     2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
 """
 from django.conf.urls import url,include
 from django.contrib import admin
 from app01 import views

 urlpatterns = [
     url(r'^admin/', admin.site.urls),
     url(r'^info/', views.info),
     url(r'^home/(\d+)(.*)', views.handle_args),
     url(r'^home/', views.home),
     url(r'^app01/', include("app01.urls")),
     url(r'^app02/', include("app02.urls")),

 ]

全局的路由系统

 """first_django_project URL Configuration

 The `urlpatterns` list routes URLs to views. For more information please see:
     https://docs.djangoproject.com/en/dev/topics/http/urls/
 Examples:
 Function views
     1. Add an import:  from my_app import views
     2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
 Class-based views
     1. Add an import:  from other_app.views import Home
     2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
 Including another URLconf
     1. Import the include() function: from django.conf.urls import url, include
     2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
 """
 from django.conf.urls import url,include
 from django.contrib import admin
 from app02 import views

 urlpatterns = [
     url(r'^admin/', admin.site.urls),
     url(r'^info/', views.info),
     url(r'^home/(\d+)(.*)', views.handle_args),
     url(r'^home/', views.home),
     url(r'^db/add', views.db_add),
     url(r'^db/del', views.db_del),
     url(r'^db/update', views.db_update),
     url(r'^db/select', views.db_select),
     url(r'^db/login', views.db_login),

 ]

/projectname/appname/usrs.py

url会把一个url的请求给到一个view的方法里面

 from django.shortcuts import render
 # Create your views here.
 from django.shortcuts import HttpResponse, redirect
 from app02 import models
 from first_django_project import settings

 def home(request):
     return HttpResponse("app02.home")

 def handle_args(args):
     pass

 def info(request):
     pass

 def db_add(request):
     one_user = {"name":"dujuan1", "email":"dujuan.foxmail.com", "comment":"this is comment", "age":23}
     models.UserInfo.objects.create(**one_user)
     return HttpResponse("add ok")

 def db_del(request):
     models.UserInfo.objects.filter(name="dujuan1").delete()
     return HttpResponse("del ok")

 def db_update(request):
     models.UserInfo.objects.filter(name="dujuan1").update(age=25)
     return HttpResponse("update ok")

 def db_select(request):
     # ret = models.UserInfo(models.UserInfo.objects.all().first())
     # return HttpResponse(ret.name + "---" + ret.email + "-----" + ret.comment + "-----" + ret.age + "----" + "select ok")
     #add data to databas first
     if request.method == "POST":
         submit_data = request.POST
         print(submit_data,type(submit_data))
         models.UserInfo.objects.create(name = submit_data["name"],
                                        email = submit_data["email"],
                                        comment = submit_data["comment"],
                                        age = submit_data["age"]
                                        )
         print("insert into ok")
     ret_list = models.UserInfo.objects.all()
     # 探测是否获得了数据
     for line in ret_list:
         print(line.name)
     print("select ing ... ...")
     myrender = render(request, settings.BASE_DIR + "\\templates\\db_select.html", {"li": ret_list})
     return HttpResponse(myrender)

 def db_login(request):
     # login_page_fp = open(settings.BASE_DIR + "\\templates\\app02_login.html", "r", encoding="utf-8")
     # login_page_str = str(login_page_fp)
     # login_page_fp.close()
     if request.method == "POST":
         print("-----li------request.method == post")
         submit_data = request.POST
         submit_data_name = submit_data["name"]
         submit_data_email = submit_data["email"]
         query_data = models.UserInfo.objects.filter(name=submit_data_name)
         # print(query_data,type(query_data))
         for item in query_data:
             print(item,type(item))
             print(item.name)
             print(item.email)
             cur_email = item.email
             if cur_email == submit_data_email:
                 print("----li----authentication success")
                 data_list = models.UserInfo.objects.all()
                 ret_render = render(request, settings.BASE_DIR + "\\templates\\db_select.html", {"li": data_list})
                 return HttpResponse(ret_render)

     ret_render = render(request, settings.BASE_DIR + "\\templates\\app02_login.html", context=None)
     return HttpResponse(ret_render)

/projectname/appnaem/views.py

views会去models里面去取数据

 from django.db import models

 # Create your models here.

 class UserInfo(models.Model):
     name = models.CharField(max_length=32)
     email = models.CharField(max_length=32)
     comment = models.CharField(max_length=32)
     age = models.IntegerField()
     password = models.CharField(max_length=32,default="")

     # def __str__(self):
     #     s = {"id": self.id, "name": self.name, "email": self.email}
     #     return s
     def __str__(self):
         return self.name

 class Reporter(models.Model):
     name = models.CharField(max_length=32)

     def __str__(self):
         return self.name

 class Article(models.Model):
     pub_date = models.DateField()
     headline = models.CharField(max_length=32)
     content = models.TextField()
     reporter = models.ForeignKey(Reporter)

     def __str__(self):
         return self.headline

/projectname/appname/models.py

views 还回去templates里面那html样式

 <!DOCTYPE html>
 <html lang="en">
 <head>
     <meta charset="UTF-8">
     <title>user info</title>
 </head>
 <body>
 <center>
     <table border="">
         <thead>
             <tr>
                 <td>name</td>
                 <td>email</td>
                 <td>comment</td>
                 <td>age</td>
             </tr>
         </thead>
         <tbody>
             {% for line in li %}
             <tr>
                 <td>{{ line.name }}</td>
                 <td>{{ line.email }}</td>
                 <td>{{ line.comment }}</td>
                 <td>{{ line.age }}</td>
             </tr>
             {% endfor %}
         </tbody>
     </table>
     <br>
     <hr style="height:3px;border:none;border-top:3px double red;" />
     <form action="/app02/db/select" method="post">
         <table>
             <thead>
                 <tr>
                     <td>name</td>
                     <td>value</td>
                 </tr>
             </thead>
             <tbody>
                 <tr>
                     <td>name</td>
                     <td><input type="text" name="name" value=""></td>
                 </tr>
                 <tr>
                     <td>email</td>
                     <td><input type="text" name="email" value=""></td>
                 </tr>
                 <tr>
                     <td>comment</td>
                     <td><input type="text" name="comment" value=""></td>
                 </tr>
                 <tr>
                     <td>age</td>
                     <td><input type="text" name="age" value=""></td>
                 </tr>
                 <tr>
                     <td><input type="submit" name="add" value="add"></td>
                 </tr>
             </tbody>
         </table>
     </form>
 </center>
 </body>
 </html>

/templates/db_select.html

好了，现在运行吧

在浏览器里面输入

http://127.0.0.1:8000/app02/db/select

后台查出来的数据也是这个

特别感谢

　　http://www.maiziedu.com/article/8579/   -----  让我知道了PyMySQL

　　http://python.usyiyi.cn/django/intro/overview.html     ---- dango1.8的中文文档，作者英语不是很好，中英文结合看吧

如果有疑问，可以联系作者

yangliw3@foxmail.com