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【百度云搜寻，搜各种材料:http://www.lqkweb.com】
【搜网盘，搜各种材料:http://www.swpan.cn】
【酷站群，搜各种网站源码:http://www.kuzq.cn】
Django 实现搜寻性能
1、在 Django 配置搜寻后果页的路由映射
"""pachong URL Configuration
The `urlpatterns` list routes URLs to views. For more information please see:
https://docs.djangoproject.com/en/1.10/topics/http/urls/
Examples:
Function views
1. Add an import: from my_app import views
2. Add a URL to urlpatterns: url(r'^/pre>, 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'^/pre>, 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
from django.contrib import admin
from app1 import views
urlpatterns = [url(r'^admin/', admin.site.urls),
url(r'^/pre>, views.indexluoji),
url(r'^index/', views.indexluoji),
url(r'^suggest//pre>, views.suggestluoji,name="suggest"), # 搜寻字段补全申请
url(r'^search//pre>, views.searchluoji,name="search"), # 搜寻
]2、编写逻辑处理函数
在逻辑处理函数里实现搜寻数据
（1）获取到用户的搜索词
（2）利用原生的 elasticsearch(搜索引擎)接口，实现搜寻，注明：elasticsearch-dsl 就是在原生的 elasticsearch 上做了封装
Elasticsearch()办法，连贯原生的 elasticsearch 服务器
search()办法，原生 elasticsearch 查询方法，反对原生的 elasticsearch 查问语句，返回的原生语句后果也就是字典模式的数据
在查问语句里进行关键词高亮解决
将查问到的后果，循环获取到后返回到 html 页面
from django.shortcuts import render
# Create your views here.
from django.shortcuts import render,HttpResponse
from django.views.generic.base import View
from app1.models import lagouType # 导入操作 elasticsearch(搜索引擎)类
import json
from elasticsearch import Elasticsearch # 导入原生的 elasticsearch(搜索引擎)接口
client = Elasticsearch(hosts=["127.0.0.1"]) # 连贯原生的 elasticsearch
def indexluoji(request):
print(request.method) # 获取用户申请的门路
return render(request, 'index.html')
def suggestluoji(request): # 搜寻主动补全逻辑解决
key_words = request.GET.get('s', '') # 获取到申请词
re_datas = []
if key_words:
s = lagouType.search() # 实例化 elasticsearch(搜索引擎)类的 search 查问
s = s.suggest('my_suggest', key_words, completion={
"field": "suggest", "fuzzy": {"fuzziness": 1},
"size": 5
})
suggestions = s.execute_suggest()
for match in suggestions.my_suggest[0].options:
source = match._source
re_datas.append(source["title"])
return HttpResponse(json.dumps(re_datas), content_type="application/json")
def searchluoji(request): # 搜寻逻辑解决
key_words = request.GET.get('q', '') # 获取到申请词
response = client.search(# 原生的 elasticsearch 接口的 search()办法，就是搜寻，能够反对原生 elasticsearch 语句查问
index="lagou", # 设置索引名称
doc_type="biao", # 设置表名称
body={ # 书写 elasticsearch 语句
"query": {
"multi_match": { # multi_match 查问
"query": key_words, # 查问关键词
"fields": ["title", "description"] # 查问字段
}
},
"from": 0, # 从第几条开始获取
"size": 10, # 获取多少条数据
"highlight": { # 查问关键词高亮解决
"pre_tags": ['<span class="keyWord">'], # 高亮开始标签
"post_tags": ['</span>'], # 高亮完结标签
"fields": { # 高亮设置
"title": {}, # 高亮字段
"description": {} # 高亮字段}
}
}
)
total_nums = response["hits"]["total"] # 获取查问后果的总条数
hit_list = [] # 设置一个列表来贮存搜寻到的信息，返回给 html 页面
for hit in response["hits"]["hits"]: # 循环查问到的后果
hit_dict = {} # 设置一个字典来贮存循环后果
if "title" in hit["highlight"]: # 判断 title 字段，如果高亮字段有类容
hit_dict["title"] = "".join(hit["highlight"]["title"]) # 获取高亮里的 title
else:
hit_dict["title"] = hit["_source"]["title"] # 否则获取不是高亮里的 title
if "description" in hit["highlight"]: # 判断 description 字段，如果高亮字段有类容
hit_dict["description"] = "".join(hit["highlight"]["description"])[:500] # 获取高亮里的 description
else:
hit_dict["description"] = hit["_source"]["description"] # 否则获取不是高亮里的 description
hit_dict["url"] = hit["_source"]["url"] # 获取返回 url
hit_list.append(hit_dict) # 将获取到内容的字典，增加到列表
return render(request, 'result.html', {"all_hits": hit_list, "key_words": key_words}) #显示页面和将列表和搜索词返回到 html3、html 页面接管搜寻后果
留神：因为 Django 实现了避免恶意代码写入，但凡通过变量传输到 html 页面的 html 类型代码，将会被主动转换成字符串形式显示，索引咱们须要在接管变量的字段用：{% autoescape off %} {{接管变量}} {% endautoescape %}，来显示 html 代码，
搜寻后因为进行了一次跳转，所以搜寻框里的搜索词将不存在，咱们须要在传递搜寻后果到页面的时候，将搜索词也传递进来填充到搜 索框
<!DOCTYPE html >
<html xmlns="http://www.w3.org/1999/xhtml">
{# 引入动态文件门路 #}
{% load staticfiles %}
<head>
<meta http-equiv="X-UA-Compatible" content="IE=emulateIE7" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>python-lcv-search 搜索引擎 </title>
<link href="{% static'css/style.css'%}" rel="stylesheet" type="text/css" />
<link href="{% static'css/result.css'%}" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="container">
<div id="hd" class="ue-clear">
<a href="/"><div class="logo"></div></a>
<div class="inputArea">
<input type="text" class="searchInput" value="{{key_words}}"/>
<input type="button" class="searchButton" onclick="add_search()"/>
</div>
</div>
<div class="nav">
<ul class="searchList">
<li class="searchItem current" data-type="article"> 文章 </li>
<li class="searchItem" data-type="question"> 问答 </li>
<li class="searchItem" data-type="job"> 职位 </li>
</ul>
</div>
<div id="bd" class="ue-clear">
<div id="main">
<div class="sideBar">
<div class="subfield"> 网站 </div>
<ul class="subfieldContext">
<li>
<span class="name"> 伯乐在线 </span>
<span class="unit">(None)</span>
</li>
<li>
<span class="name"> 知乎 </span>
<span class="unit">(9862)</span>
</li>
<li>
<span class="name"> 拉勾网 </span>
<span class="unit">(9862)</span>
</li>
<li class="more">
<a href="javascript:;">
<span class="text"> 更多 </span>
<i class="moreIcon"></i>
</a>
</li>
</ul>
<div class="sideBarShowHide">
<a href="javascript:;" class="icon"></a>
</div>
</div>
<div class="resultArea">
<p class="resultTotal">
<span class="info"> 找到约 <span class="totalResult">45</span> 条后果(用时 <span class="time">0.643128</span> 秒)，共约 <span class="totalPage">5</span> 页 </span>
</p>
<div class="resultList">
{% for hit in all_hits %}
<div class="resultItem">
<div class="itemHead">
<a href="{% autoescape off %} {{hit.url}} {% endautoescape %}" target="_blank" class="title">{% autoescape off %} {{hit.title}} {% endautoescape %}</a>
<span class="divsion">-</span>
<span class="fileType">
<span class="label"> 起源：</span>
<span class="value"> 网络 </span>
</span>
<span class="dependValue">
<span class="label"> 得分：</span>
<span class="value">3.401155</span>
</span>
</div>
<div class="itemBody">
{% autoescape off %} {{hit.description}} {% endautoescape %}
</div>
</div>
{% endfor %}
</div>
<!-- 分页 -->
<div class="pagination ue-clear"></div>
<!-- 相干搜寻 -->
</div>
<div class="historyArea">
<div class="hotSearch">
<h6> 热门搜寻 </h6>
<ul class="historyList">
<li><a href="/search?q=linux">linux</a></li>
</ul>
</div>
<div class="mySearch">
<h6> 我的搜寻 </h6>
<ul class="historyList">
</ul>
</div>
</div>
</div><!-- End of main -->
</div><!--End of bd-->
</div>
<div id="foot">Copyright ©projectsedu.com 版权所有 E-mail:admin@projectsedu.com</div>
</body>
<script type="text/javascript" src="{% static'js/jquery.js'%}"></script>
<script type="text/javascript" src="{% static'js/global.js'%}"></script>
<script type="text/javascript" src="{% static'js/pagination.js'%}"></script>
<script type="text/javascript">
var search_url = "/search/"
$('.searchList').on('click', '.searchItem', function(){$('.searchList .searchItem').removeClass('current');
$(this).addClass('current');
});
$.each($('.subfieldContext'), function(i, item){$(this).find('li:gt(2)').hide().end().find('li:last').show();});
function removeByValue(arr, val) {for(var i=0; i<arr.length; i++) {if(arr[i] == val) {arr.splice(i, 1);
break;
}
}
}
$('.subfieldContext .more').click(function(e){var $more = $(this).parent('.subfieldContext').find('.more');
if($more.hasClass('show')){if($(this).hasClass('define')){$(this).parent('.subfieldContext').find('.more').removeClass('show').find('.text').text('自定义');
}else{$(this).parent('.subfieldContext').find('.more').removeClass('show').find('.text').text('更多');
}
$(this).parent('.subfieldContext').find('li:gt(2)').hide().end().find('li:last').show();}else{$(this).parent('.subfieldContext').find('.more').addClass('show').find('.text').text('收起');
$(this).parent('.subfieldContext').find('li:gt(2)').show();}
});
$('.sideBarShowHide a').click(function(e) {if($('#main').hasClass('sideBarHide')){$('#main').removeClass('sideBarHide');
$('#container').removeClass('sideBarHide');
}else{$('#main').addClass('sideBarHide');
$('#container').addClass('sideBarHide');
}
});
var key_words = "java"
// 分页
$(".pagination").pagination(45, {
current_page :0, // 以后页码
items_per_page :10,
display_msg :true,
callback :pageselectCallback
});
function pageselectCallback(page_id, jq) {window.location.href=search_url+'?q='+key_words+'&p='+page_id}
setHeight();
$(window).resize(function(){setHeight();
});
function setHeight(){if($('#container').outerHeight() < $(window).height()){$('#container').height($(window).height()-33);
}
}
</script>
<script type="text/javascript">
$('.searchList').on('click', '.searchItem', function(){$('.searchList .searchItem').removeClass('current');
$(this).addClass('current');
});
// 联想下拉显示暗藏
$('.searchInput').on('focus', function(){$('.dataList').show()});
// 联想下拉点击
$('.dataList').on('click', 'li', function(){var text = $(this).text();
$('.searchInput').val(text);
$('.dataList').hide()});
hideElement($('.dataList'), $('.searchInput'));
</script>
<script>
var searchArr;
// 定义一个 search 的，判断浏览器有无数据存储（搜寻历史）if(localStorage.search){
// 如果有，转换成 数组的模式寄存到 searchArr 的数组里（localStorage 以字符串的模式存储，所以要把它转换成数组的模式）searchArr= localStorage.search.split(",")
}else{
// 如果没有，则定义 searchArr 为一个空的数组
searchArr = [];}
// 把存储的数据显示进去作为搜寻历史
MapSearchArr();
function add_search(){var val = $(".searchInput").val();
if (val.length>=2){
// 点击搜寻按钮时，去重
KillRepeat(val);
// 去重后把数组存储到浏览器 localStorage
localStorage.search = searchArr;
// 而后再把搜寻内容显示进去
MapSearchArr();}
window.location.href=search_url+'?q='+val+"&s_type="+$(".searchItem.current").attr('data-type')
}
function MapSearchArr(){
var tmpHtml = "";
var arrLen = 0
if (searchArr.length > 6){arrLen = 6}else {arrLen = searchArr.length}
for (var i=0;i<arrLen;i++){tmpHtml += '<li><a href="/search?q='+searchArr[i]+'">'+searchArr[i]+'</a></li>'
}
$(".mySearch .historyList").append(tmpHtml);
}
// 去重
function KillRepeat(val){
var kill = 0;
for (var i=0;i<searchArr.length;i++){if(val===searchArr[i]){kill ++;}
}
if(kill<1){searchArr.unshift(val);
}else {removeByValue(searchArr, val)
searchArr.unshift(val)
}
}
</script>
</html>最终成果
正文完
发表至： elasticsearch
2020-11-24
