Django

Posted 2020-09-21 起航追梦人

1、创建新的虚拟环境

virtualenv lcv_search

2、在虚拟环境中用豆瓣源安装Django

pip install https://pypi.douban.com/simple/  django

3、用PyCharm创新Django项目

4、创建好后目录如下

5、运行Lcs_search项目，进入：http://127.0.0.1:8000/  显示如下

6、在Lcs_search文件夹的urls.py文件中配置首页url

from django.conf.urls import url
from django.contrib import admin
from django.views.generic import TemplateView
urlpatterns = [
    url(r\'^admin/\', admin.site.urls),
    url(r\'^$\', TemplateView.as_view(template_name="index.html"), name="index"), #index.html为前端文件，name自定义取
]

7、在Lcs_search文件夹的settings.py文件中倒入样式文件夹

#在settings.py文件最后添加
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, \'Front\') #BASE_DIR是原settings.py文件中的路径变量os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
]

8、修改.html文件中的css和js引用的路径

{% load staticfiles%} #Django固定写法
<link href="{% static \'css/style.css\'%}" rel="stylesheet" type="text/css" />
<link href="{% static \'css/index.css\'%}" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="{% static \'js/jquery.js\'%}"></script>
<script type="text/javascript" src="{% static \'js/global.js\'%}"></script> 

#{% static \'js/jquery.js\'%}中的static为settings.py文件的变量：STATIC_URL = \'/static/\' ，

{% static \'js/jquery.js\'%}也可以这样写\'/static/js/jquery.js\'

9、修改完成后显示正确了

 10、在urls.py中添加搜索提示连接

from django.conf.urls import url
from django.contrib import admin
from django.views.generic import TemplateView
from search.views import SearchSuggest
urlpatterns = [
    url(r\'^admin/\', admin.site.urls),
    url(r\'^$\', TemplateView.as_view(template_name="index.html"), name="index"),
    url(r\'^suggest/$\', SearchSuggest.as_view(), name="suggest"),#自动补全链接接口
]

11、在Lsv_search下的search的models.py文件中加入代码(在虚拟环境内安装elasticsearch-dsl)

from elasticsearch_dsl import DocType, Date, Nested, Boolean, \\
    analyzer, InnerObjectWrapper, Completion, Keyword, Text, Integer

from elasticsearch_dsl.analysis import CustomAnalyzer as _CustomAnalyzer

from elasticsearch_dsl.connections import connections
connections.create_connection(hosts=["localhost"])

class CustomAnalyzer(_CustomAnalyzer):
    def get_analysis_definition(self):
        return {}


ik_analyzer = CustomAnalyzer("ik_max_word", filter=["lowercase"])

class ArticleType(DocType):
    #伯乐在线文章类型
    suggest = Completion(analyzer=ik_analyzer)
    title = Text(analyzer="ik_max_word")
    create_date = Date()
    url = Keyword()
    url_object_id = Keyword()
    front_image_url = Keyword()
    front_image_path = Keyword()
    praise_nums = Integer()
    comment_nums = Integer()
    fav_nums = Integer()
    tags = Text(analyzer="ik_max_word")
    content = Text(analyzer="ik_max_word")

    class Meta:
        index = "jobbole"
        doc_type = "article"

if __name__ == "__main__":
    ArticleType.init()

12、在Lsv_search下的search的views.py文件中加入代码

from django.shortcuts import render
from django.views.generic.base import View
from search.models import ArticleType
from django.http import HttpResponse
import json
# Create your views here.
class SearchSuggest(View):
    def get(self, request):
        key_words = request.GET.get(\'s\', \'\')
        re_datas = []
        if key_words:
            s = ArticleType.search()
            s = s.suggest(\'my_suggest\', key_words, completion={
                \'field\': \'suggest\',
                \'fuzzy\': {\'fuzziness\': 2},
                \'size\': 10
            })
            suggestion = s.execute_suggest()
            for match in suggestion.my_suggest[0].options:
                source = match._source
                re_datas.append(source[\'title\'])
        return HttpResponse(json.dumps(re_datas), content_type=\'application/json\')

10-12完成搜索提示（自动补全功能），效果如下

13、在urls.py中添加搜索功能接口