Django+Eclipse创建博客
一、配置开发环境：
环境：python2.7.16 + Django1.11.23 + Eclipse 2019-06 (4.12.0)
- 安装Python：安装完成后需在环境变量－系统变量的PATH变量添加Python安装路径到变量值；
- 安装Django：在DOS中进入解压后目录，运行全集：setup.py install；
- 安装Eclipse的Python插件PyDev：Help->Eclipse Marketplace，输入PyDev搜索后点install；
备注：因后续需创建html文件，可同时安装HTML Editor插件；
安装之后需给PyDev配置Python解释器：Window->Preferences，找到后可直接在Quick Auto-Config中快速识别添加；
二、Python+Django在Eclipse开发自己博客
1.新建Django项目：
2.创建网站模块app
3.测试新建模块是否正常
Performing system checks...
System check identified no issues (0 silenced).
You have 15 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions, sites.
Run 'python manage.py migrate' to apply them.
August 12, 2019 - 10:00:21
Django version 1.11.23, using settings 'MySite.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
Performing system checks...
启动后去浏览器输入http://127.0.0.1:8000/admin，之后会创建Mysite文件及一些其它文件
4.编辑代码
1） 修改MyBlog下models.py文件
# -*- coding: utf-8 -*-
from django.db import models
from django.contrib import admin
# Create your models here.
class BlogPost(models.Model):
title = models.CharField(max_length = 150)
content = models.TextField()
timestamp = models.DateTimeField()
class BlogPostAdmin(admin.ModelAdmin):
list_display = ('title', 'content', 'timestamp')
admin.site.register(BlogPost, BlogPostAdmin)
2） 修改MyBlog下views.py文件
# -*- coding: utf-8 -*-
# Create your views here.
from django.template import loader,Context
from django.http import HttpResponse
from MyBlog.models import BlogPost
def archive(request):
posts = BlogPost.objects.all()
t = loader.get_template('archive.html')
#c = Context({'posts': posts})
html = t.render({'posts': posts})
#return HttpResponse(t.render(c))
return HttpResponse(html)
3） 修改MySite下settings.py中相关内容
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
#'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'MyBlog',
)
4） 修改MySite下urls.py
from django.conf.urls import url
# Uncomment the next two lines to enable the admin:
from django.contrib import admin
#from django.contrib import BlogPost, Context, HttpResponse, Loader
from MyBlog.views import *
from MyBlog.models import *
urlpatterns = [
# Uncomment the next line to enable the admin:
url(r'^admin/', admin.site.urls),
url(r'^MyBlog/$', archive)
]
5） 建立样式网页模板
在MyBlog下添加templates文件夹，并在下面建立那个网页文件archive.html、base.html
A． 编辑archive.html
{% extends "base.html" %}
{% block content %}
{% for post in posts %}
<h1>{{ post.title}}</h1>
<p>{{ post.content }}</p>
<p>{{ post.timestamp|date:"1, F jS"}}</p>
{% endfor %}
{% endblock %}
B． 编辑base.html
<html>
<style type="text/css">
body { color: #edf; background: #453; padding: 0 5em; margin:0 }
h1 { padding: 2em lem; background:#675 }
h2 { color: #bf8; border-top: 1px dotted #fff; margin-top: 2em }
p { margin: lem 0 }
</style>
<body>
<h1><center>Welcome come to Ryan's Blog</center></h1>
{% block content %}
{% endblock %}
</body>
</html>
6）同步数据库
设置账号密码：在DOS环境进入项目src所在目录，运行python manage.py createsuperuser，输入账号，邮箱，密码；
7） 运行测试
在MYBLOG输入内容保存即可发布，输入网址：http://127.0.0.1:8000/MyBlog测试成功！
引用：
https://www.cnblogs.com/lanxuezaipiao/p/3283932.html主要参考文档；
报错及故障解决：
1、NameError: name 'patterns' is not defined
引用：https://blog.csdn.net/xudailong_blog/article/details/78313568，
原因及解决方法：Django1.10后patterns已移除，删除urls.py文件中include包并导入MyBlog.views包；
前：
urlpatterns = patterns('',
url(r'^admin/', include(admin.site.urls)),
url(r'^MyBlog/$', archive),
)
后：
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^MyBlog/$', archive)
]
2、DoesNotExist: Site matching query does not exist.
引用：http://blog.sina.com.cn/s/blog_4e1354b101017tcs.html、https://stackoverflow.com/questions/6086852/how-to-fix-the-django-sites-table
原因及解决方法：不需要sites框架，去掉settings.py文件中INSTALLED_APPS中django.contrib.sites内容：
前：
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'MyBlog',
)
后：
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
#'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'MyBlog',
)
3、OperationalError: no such table: MyBlog_blogpost
引用：https://blog.csdn.net/Xiao13Yu14/article/details/47989885
原因及解决方法：
4、TypeError: context must be a dict rather than Context.
引用：https://blog.csdn.net/u014770372/article/details/76038248
原因及解决方法：修改views.py文件，render方法传入context参数做为了make_context()方法中，context()必须是一个字典类型，mak_context()返回Context或子类RequestContext实例对象；
前：
from django.template import loader,Context
from django.http import HttpResponse
from MyBlog.models import BlogPost
def archive(request):
posts = BlogPost.objects.all()
t = loader.get_template('archive.html')
c = Context({'posts': posts})
return HttpResponse(t.render(c))
后：
from django.template import loader,Context
from django.http import HttpResponse
from MyBlog.models import BlogPost
def archive(request):
posts = BlogPost.objects.all()
t = loader.get_template('archive.html')
c = t.render({'posts': posts})
return HttpResponse(c)
浙公网安备 33010602011771号