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ElastSearch整合SpringBoot模仿京东商城实现关键字高亮显示

code • 2022-4-28 • python • 阅读 63

ElastSearch整合SpringBoot模仿京东商城实现关键字高亮显示,第1张

前提:下载Elasticsearch服务并开启,使用SpringBoot集成Elasticsearch客户端

用到的技术:Springboot+Vue+Thymeleaf+Elasticsearch

效果如下


接下来上代码(不分前后顺序)

页面跳转controller

package com.wyh.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;

/**
 * @program: SpringBoot_ElasticSearch
 * @description: index页面跳转controller
 * @author: 魏一鹤
 * @createDate: 2022-04-19 23:09
 **/
@Controller
public class IndexController {
    @GetMapping({"/","/index"})
    public String index() {
        return "index";
    }
}

接口数据请求controller

package com.wyh.controller;

import com.wyh.service.JDContentService;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.io.IOException;
import java.util.List;
import java.util.Map;

/**
 * @program: SpringBoot_ElasticSearch_JD
 * @description: 京东商品控制器
 * @author: 魏一鹤
 * @createDate: 2022-04-20 00:48
 **/

//前端请求编写
@RestController
public class JDContentController {

    @Autowired
    private JDContentService jdContentService;
    //测试es批量添加京东数据 restful风格
    @GetMapping("/parse/{keyword}")
    public boolean parse(@PathVariable("keyword") String keyword) throws IOException {
      return  jdContentService.parseContent(keyword);
    }

    //测试查询
    @GetMapping("/search/{keyword}/{pageNo}/{pageSize}")
    public  List<Map<String,Object>> search(@PathVariable("keyword") String keyword,
                                            @PathVariable("pageNo") int pageNo,
                                            @PathVariable("pageSize")int pageSize) throws IOException {
       return  jdContentService.searchPageHighLight(keyword,pageNo,pageSize);

    }


}

京东商品实体

package com.wyh.entity;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.stereotype.Component;

/**
 * @program: SpringBoot_ElasticSearch_JD
 * @description: JD内容实体
 * @author: 魏一鹤
 * @createDate: 2022-04-20 00:37
 **/

@Data
@AllArgsConstructor
@NoArgsConstructor
@Component
public class JDContent {
    private String title;
    private String img;
    private String  price;
    //可以自定义继续加属性
}

京东商品service

package com.wyh.service;

import com.alibaba.fastjson.JSON;
import com.wyh.entity.JDContent;
import com.wyh.utils.HtmlParseUtil;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.TermQueryBuilder;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.search.fetch.subphase.highlight.HighlightBuilder;
import org.elasticsearch.search.fetch.subphase.highlight.HighlightField;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @program: SpringBoot_ElasticSearch_JD
 * @description: 京东商品服务接口
 * @author: 魏一鹤
 * @createDate: 2022-04-20 00:47
 **/

//业务编写
@Service
public class JDContentService {
    //注入bean
    @Resource
    private RestHighLevelClient client;
    //1 解析数据 放入es索引库
    public boolean parseContent(String keywords) throws IOException {
        ArrayList<JDContent> jdContents = new HtmlParseUtil().parseJD(keywords);
        //把查询并且解析好的数据批量插入到es库
        BulkRequest bulkRequest = new BulkRequest();
        //过期时间2分钟
        bulkRequest.timeout("2m");
        //批量插入数据
        for (int i = 0; i < jdContents.size(); i++) {
            bulkRequest.add(new IndexRequest("jd_goods")
                    //这里就不给id赋值了 随时生成
                    .source(JSON.toJSONString(jdContents.get(i)),XContentType.JSON)
            );
        }
        //执行批量插入请求
        BulkResponse bulk = client.bulk(bulkRequest, RequestOptions.DEFAULT);
        //没有返回失败就是成功
        return !bulk.isFragment();

    }
    //2 获取这些数据  实现搜索功能
    public List<Map<String,Object>> searchPage(String keyword,int pageNo,int pageSize) throws IOException {
        //当前页数第一条
        if(pageNo<=1){
            pageNo=1;
        }
        //条件搜索
        SearchRequest searchRequest = new SearchRequest("jd_goods");
        //构建查询
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //查询条件
        TermQueryBuilder termQueryBuilder = QueryBuilders.termQuery("title", keyword);
        //分页
        searchSourceBuilder.from(pageNo);
        searchSourceBuilder.size(pageSize);
        //精准匹配关键字
        SearchSourceBuilder query = searchSourceBuilder.query(termQueryBuilder);
        //超时时间
        searchSourceBuilder.timeout(new TimeValue(60, TimeUnit.SECONDS));
        //执行搜索
        searchRequest.source(searchSourceBuilder);
        SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        //创建map 用于返回
        ArrayList<Map<String,Object>> arrayList = new ArrayList();
        //解析结果
        for (SearchHit document : searchResponse.getHits().getHits()) {
            arrayList.add(document.getSourceAsMap());
        }
        return arrayList;
    }

    //3 实现搜索高亮的功能
    public List<Map<String,Object>> searchPageHighLight(String keyword,int pageNo,int pageSize) throws IOException {
        //当前页数第一条
        if(pageNo<=1){
            pageNo=1;
        }
        //条件搜索
        SearchRequest searchRequest = new SearchRequest("jd_goods");
        //构建查询
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        //查询条件
        TermQueryBuilder termQueryBuilder = QueryBuilders.termQuery("title", keyword);
        //分页
        searchSourceBuilder.from(pageNo);
        searchSourceBuilder.size(pageSize);
        //精准匹配关键字
        SearchSourceBuilder query = searchSourceBuilder.query(termQueryBuilder);
        //超时时间
        searchSourceBuilder.timeout(new TimeValue(60, TimeUnit.SECONDS));

        //高亮显示
        HighlightBuilder highlightBuilder = new HighlightBuilder();
        //让标题高亮
        highlightBuilder.field("title");
        //高亮的前缀
        highlightBuilder.preTags("");
        //高亮的后缀
        highlightBuilder.postTags("");
        //关闭多个高亮
        highlightBuilder.requireFieldMatch(false);
        searchSourceBuilder.highlighter(highlightBuilder);

        //执行搜索
        searchRequest.source(searchSourceBuilder);
        SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
        //创建map 用于返回
        ArrayList<Map<String,Object>> arrayList = new ArrayList();
        //解析结果
        for (SearchHit document : searchResponse.getHits().getHits()) {
            //获取高亮的字段
            Map<String, HighlightField> highlightFields = document.getHighlightFields();
            HighlightField title = highlightFields.get("title");
            //原来的结果
            Map<String, Object> sourceAsMap = document.getSourceAsMap();
            //解析高亮的字段,将原来的字段换成高亮的字段即可
            //如果高亮字段存在
            if(title!=null){
                Text[] fragments = title.fragments();
                //新标题
                String newTitle="";
                for (Text fragment : fragments) {
                    newTitle+=fragment;
                }
                //高亮字段替换原来的字段内容即可
                sourceAsMap.put("title",newTitle);
            }
            arrayList.add(sourceAsMap);
        }
        return arrayList;
    }
}

解析页面工具包

package com.wyh.utils;

import com.wyh.entity.JDContent;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

/**
 * @program: SpringBoot_ElasticSearch_JD
 * @description: jsoup解析网页
 * @author: 魏一鹤
 * @createDate: 2022-04-19 23:53
 **/

@Component
public class HtmlParseUtil {
    //public static void main(String[] args) throws IOException {
    //    //ArrayList jdContents = parseJD("你好");
    //    //for (JDContent jdContent : jdContents) {
    //    //    System.out.println(jdContent);
    //    //}
    //    获取请求 前提需要联网
    //    //String url="https://search.jd.com/Search?keyword=java";
    //    解析网页 jsoup返回的document对象就是浏览器document对象
    //    所有在js中可以使用的方法,这里都能使用 比如document.getElementById()
    //    //Document document = Jsoup.parse(new URL(url), 30000);
    //    获取我们想要的数据
    //    //Element element = document.getElementById("J_goodsList");
    //    //System.out.println(element.html());
    //    获取全部的li元素
    //    //Elements elements = element.getElementsByTag("li");
    //    //System.out.println(elements);
    //    获取元素中的内容
    //    //for (Element el : elements) {
    //    //    //图片
    //    //    //为什么明明可以看到图片的src但是就是获取不到呢
    //    //    //这里面用到一个懒加载机制 真正的图片是放在source-data-lazy-img(data-lazy-img)中的
    //    //    String img = el.getElementsByTag("img").eq(0).attr("data-lazy-img");
    //    //    //价格
    //    //    String price = el.getElementsByClass("p-price").eq(0).text();
    //    //    //标题
    //    //    String title = el.getElementsByClass("p-name").eq(0).text();
    //    //    System.out.println("-------------------------------");
    //    //    System.out.println(img);
    //    //    System.out.println(price);
    //    //    System.out.println(title);
    //    //
    //    //}
    //}
    //解析京东请求
    public ArrayList<JDContent> parseJD(String keywords) throws IOException {
        //获取请求 前提需要联网
        String url="https://search.jd.com/Search?keyword="+keywords;
        //解析网页 jsoup返回的document对象就是浏览器document对象
        //所有在js中可以使用的方法,这里都能使用 比如document.getElementById()
        Document document = Jsoup.parse(new URL(url), 30000);
        //获取我们想要的数据
        Element element = document.getElementById("J_goodsList");
        System.out.println(element.html());
        //获取全部的li元素
        Elements elements = element.getElementsByTag("li");
        //京东实体对象集合
        ArrayList<JDContent> jdContents = new ArrayList<>();
        //获取元素中的内容
        for (Element el : elements) {
            //图片
            //为什么明明可以看到图片的src但是就是获取不到呢
            //这里面用到一个懒加载机制 真正的图片是放在source-data-lazy-img(data-lazy-img)中的
            String img = el.getElementsByTag("img").eq(0).attr("data-lazy-img");
            //价格
            String price = el.getElementsByClass("p-price").eq(0).text();
            //标题
            String title = el.getElementsByClass("p-name").eq(0).text();
            System.out.println("-------------------------------");
            System.out.println(img);
            System.out.println(price);
            System.out.println(title);
            //创建京东实体对象
            JDContent jdContent = new JDContent();
            jdContent.setImg(img);
            jdContent.setTitle(title);
            jdContent.setPrice(price);
            //把全部属性放进集合里面
            jdContents.add(jdContent);
        }
        return jdContents;
    }
}

es配置

package com.wyh.config;

import org.apache.http.HttpHost;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @program: SpringBoot_ElasticSearch
 * @description: ElasticSearch相关配置
 * @author: 魏一鹤
 * @createDate: 2022-04-18 22:04
 **/


//表面这是一个配置文件
@Configuration
public class ElasticSearchClientConfig {
    //配置bean  注册 rest高级客户端
    @Bean
    public RestHighLevelClient restHighLevelClient(){
        RestHighLevelClient client = new RestHighLevelClient(
                RestClient.builder(
                        //ip  端口 协议
                        //一定要保证es服务是开启的
                        new HttpHost("127.0.0.1",9200,"http")));
        return client;
    }
}

新建一个索引库 用来存放京东数据

springboot application配置

#端口
server.port=8080
#关闭thymeleaf缓存
spring.thymeleaf.cache=false

页面


<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">

<head>
    <meta charset="utf-8"/>
    <title>仿京东高亮搜索</title>
    <link rel="stylesheet" th:href="@{/css/style.css}"/>
    <script th:src="@{/js/jquery.min.js}"></script>
</head>

<body class="pg">
<div class="page" id="app">
    <div id="mallPage" class=" mallist tmall- page-not-market ">

        <!-- 头部搜索 -->
        <div id="header" class=" header-list-app">
            <div class="headerLayout">
                <div class="headerCon ">
                    <!-- Logo-->
                    <h1 id="mallLogo">
                        <img th:src="@{/images/jdlogo.png}" alt="">
                    </h1>

                    <div class="header-extra">

                        <!--搜索-->
                        <div id="mallSearch" class="mall-search">
                            <form name="searchTop" class="mallSearch-form clearfix">
                                <fieldset>
                                    <legend>京东搜索</legend>
                                    <div class="mallSearch-input clearfix">
                                        <div class="s-combobox" id="s-combobox-685">
                                            <div class="s-combobox-input-wrap">
                                                <input type="text" v-model="keyword" autocomplete="off" value="dd" id="mq"
                                                       class="s-combobox-input" aria-haspopup="true">
                                            </div>
                                        </div>
                                        <button type="submit"  @click.prevent="searchKey" id="searchbtn">搜索</button>
                                    </div>
                                </fieldset>
                            </form>
                            <ul class="relKeyTop">
                                <li><a>学习</a></li>
                                <li><a>摸鱼</a></li>
                                <li><a>睡觉</a></li>
                                <li><a>LOL</a></li>
                                <li><a>上班</a></li>
                            </ul>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <!-- 商品详情页面 -->
        <div id="content">
            <div class="main">
                <!-- 品牌分类 -->
                <form class="navAttrsForm">
                    <div class="attrs j_NavAttrs" style="display:block">
                        <div class="brandAttr j_nav_brand">
                            <div class="j_Brand attr">
                                <div class="attrKey">
                                    品牌
                                </div>
                                <div class="attrValues">
                                    <ul class="av-collapse row-2">
                                        <li><a href="#"> 魏一鹤 </a></li>
                                        <li><a href="#"> Java </a></li>
                                    </ul>
                                </div>
                            </div>
                        </div>
                    </div>
                </form>

                <!-- 排序规则 -->
                <div class="filter clearfix">
                    <a class="fSort fSort-cur">综合<i class="f-ico-arrow-d"></i></a>
                    <a class="fSort">人气<i class="f-ico-arrow-d"></i></a>
                    <a class="fSort">新品<i class="f-ico-arrow-d"></i></a>
                    <a class="fSort">销量<i class="f-ico-arrow-d"></i></a>
                    <a class="fSort">价格<i class="f-ico-triangle-mt"></i><i class="f-ico-triangle-mb"></i></a>
                </div>

                <!-- 商品详情 -->
                <div class="view grid-nosku">

                    <div class="product" v-for="result in results">
                        <div class="product-iWrap">
                            <!--商品封面-->
                            <div class="productImg-wrap">
                                <a class="productImg">
                                    <img :src="result.img">
                                </a>
                            </div>
                            <!--价格-->
                            <p class="productPrice">
                                <em><b>¥</b>{{result.price}}</em>
                            </p>
                            <!--标题-->
                            <p class="productTitle">
                                <a v-html="result.title"></a>
                            </p>
                            <!-- 店铺名 -->
                            <div class="productShop">
                                <span>店铺:魏一鹤的小店 </span>
                            </div>
                            <!-- 成交信息 -->
                            <p class="productStatus">
                                <span>月成交<em>999笔</em></span>
                                <span>评价 <a>3</a></span>
                            </p>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!--前端使用vue实现前后端分离 导入依赖-->
<script th:src="@{/js/jquery.min.js}"></script>
<script th:src="@{/js/axios.min.js}"></script>
<script th:src="@{/js/vue.min.js}"></script>
<script>

    //创建VUE对象
    new Vue({
        el:'#app', //div的id
        data:{
            keyword:'', //搜索的关键字
            results:[]  //搜索的结果
        },
        //搜索事件
        methods:{
            searchKey(){
               var keyword=this.keyword;
              //对接后端的接口
                axios.get('search/'+keyword+"/1/20").then(response=>{
                    console.log(response.data);
                    //绑定数据
                    this.results=response.data
                })
            }
        }
    })
</script>

</body>
</html>

pom


<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0modelVersion>
    <parent>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-parentartifactId>
        <version>2.6.6version>
        <relativePath/> 
    parent>
    <groupId>comgroupId>
    <artifactId>wyhartifactId>
    <version>0.0.1-SNAPSHOTversion>
    <name>wyhname>
    <description>Demo project for Spring Bootdescription>
    <properties>
        <java.version>1.8java.version>
        
        <elasticsearch.version>7.6.1elasticsearch.version>
    properties>
    <dependencies>
        
        
        <dependency>
            <groupId>org.jsoupgroupId>
            <artifactId>jsoupartifactId>
            <version>1.10.2version>
        dependency>


        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-thymeleafartifactId>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-data-elasticsearchartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <version>1.16.10version>
        dependency>
        
        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>fastjsonartifactId>
            <version>1.2.70version>
        dependency>



            dependencies>

            <build>
                <plugins>
                    <plugin>
                        <groupId>org.springframework.bootgroupId>
                        <artifactId>spring-boot-maven-pluginartifactId>
                    plugin>
                plugins>
            build>

        project>

测试接口
测试批量插入数据 java

成功插入到数据库

再插入点vue数据

测试查询接口

引入vue.js和axios.js

项目目录

欢迎分享，转载请注明来源：内存溢出

原文地址: http://outofmemory.cn/langs/742693.html

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