基于django的个人博客网站建立（七）
前言
这次在原来的基础上添加或修改一些小功能
具体内容
1.代码高亮
在原来的blog-details.html页面添加下面的代码：
<link href="http://cdn.bootcss.com/highlight.js/9.12.0/styles/googlecode.min.css" rel="stylesheet"> <script src="http://cdn.bootcss.com/highlight.js/8.0/highlight.min.js"></script> <script>hljs.initHighlightingOnLoad();</script>
它会自动高亮由markdown转换成的代码部分，即
<pre><code></code></pre>
2.统计文章阅读数量
通过在用户浏览器上存储唯一id来保证识别用户
每篇文章每个浏览器只能够每天一次增加浏览数目
首先先为article表添加浏览数目字段
class Article(models.Model): title = models.CharField(max_length=128) markdownContent = models.TextField(default='') htmlContent = models.TextField() read_num = models.IntegerField(default=0) creationTime = models.DateTimeField(auto_now_add=True)
然后通过中间件的方式来为用户浏览器设置唯一id
from django.utils.deprecation import MiddlewareMixin import uuid class UserIdMiddleware(MiddlewareMixin): def process_request(self, request): try: uid = request.COOKIES['uid'] except KeyError: uid = uuid.uuid4().hex request.uid = uid def process_response(self, request, response): response.set_cookie('uid',request.uid,max_age=60*60*24*365*10,httponly=True) return response 并在setting中把中间件加入
接下来修改视图函数，为了方便将原来的视图函数改成了CBV
class Blog_details(View): def get(self,request,*args,**kwargs): all_type = models.ArticleType.objects.all() article_id = request.GET.get('article_id') if self.is_increase(): models.Article.objects.filter(id=article_id).update(read_num=F('read_num') + 1) else: pass article_obj = models.Article.objects.filter(id=article_id).first() return render(request, 'show/blog-details.html', {'article_obj': article_obj, 'all_type': all_type}) def is_increase(self): increase = False uid = self.request.uid read_id =uid+self.request.path+str(date.today()) if not cache.get(read_id): increase = True cache.set(read_id,1,24*60*60) return increase 最后在页面一并将浏览数目显示即可
3.添加sitemap
在blog下建立sitemap.py
from django.contrib.sitemaps import Sitemap from django.urls import reverse from backend import models class ArticleSitemap(Sitemap): changefreq = 'always' priority = 1.0 protocol = 'http' def items(self): return models.Article.objects.all() def lastmod(self,obj): return obj.creationTime def location(self,obj): return 'blog-details/?article_id='+str(obj.id)
在temlpates下编写sitemap.xml
<?xml version="1.0" encoding="UTF-8"?> <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"> {% spaceless %} {% for url in urlset %} <url> <loc> {{ url.location }} </loc> <lastmod>{{ url.lastmod|date:"Y-m-d" }}</lastmod> <changefreq>{{ url.changefreq }}</changefreq> <priority>{{ url.priority }}</priority> </url> {% endfor %} {% endspaceless %} </urlset> 添加url
from django.contrib.sitemaps import views as sitemap_views from blog.sitemap import ArticleSitemap urlpatterns = [ path('admin/', admin.site.urls), path('',views.index), path('index/',views.index), path('backend/',include('backend.urls')), path('blog-details/',views.Blog_details.as_view(),name="blog-details"), path('saysomethingtome/', views.saysomethingtome), path('article_comment/',views.article_comment), path('category/',views.category), path('category/details/', views.category_details), path('record/', views.record), path('about/', views.about), path('sitemap.xml/',sitemap_views.sitemap,{'sitemaps':{'article':ArticleSitemap}}) ] 之后访问127.0.0.1:8000/sitemap.xml 就可以得到
