ElasticSearch-1 ES基础概念及命令操作
ElasticSearch-2 ES6 TransportClient + SpringBoot2 增删改查
ElasticSearch-3 ES6 TransportClient 实现全文检索
ElasticSearch-4 ES7 RestHighLevelClient + SpringBoot2 增删改查
ElasticSearch-5 ES7 RestHighLevelClient 实现仿京东搜索
效果图
- Controller
@RestController
public class ContentController {
@Autowired
private ContentService contentService;
@GetMapping("/parse/{keyword}")
public Boolean parse(@PathVariable("keyword") String keyword) throws Exception {
return contentService.parseContent(keyword);
}
@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 contentService.searchPageHighlightBuilder(keyword, pageNo, pageSize);
}
}
Service
@Service
public class ContentService {
@Autowired
private RestHighLevelClient restHighLevelClient;
public Boolean parseContent(String keyword) throws Exception {
ObjectMapper objectMapper = new ObjectMapper();
List<Content> contents = new HtmlParseUtil().parseJD(keyword);
BulkRequest bulkRequest = new BulkRequest();
bulkRequest.timeout("2m");
for (int i=0; i < contents.size(); i++) {
bulkRequest.add(new IndexRequest("jd_goods").source(objectMapper.writeValueAsString(contents.get(i)),XContentType.JSON));
}
BulkResponse bulk = restHighLevelClient.bulk(bulkRequest, RequestOptions.DEFAULT);
return !bulk.hasFailures();
}
// 2、获取这些数据实现搜索功能
public List<Map<String, Object>> searchPageHighlightBuilder(String keyword,int pageNo,int pageSize) throws IOException {
if (pageNo <= 1) {
pageNo = 1;
}
// 条件搜索
SearchRequest searchRequest = new SearchRequest("jd_goods");
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
// 分页
sourceBuilder.from(pageNo);
sourceBuilder.size(pageSize);
// 精准匹配
TermQueryBuilder termQueryBuilder = QueryBuilders.termQuery("title", keyword);
sourceBuilder.query(termQueryBuilder);
sourceBuilder.timeout(new TimeValue(60, TimeUnit.SECONDS));
// 高亮
HighlightBuilder highlightBuilder = new HighlightBuilder();
highlightBuilder.field("title");
highlightBuilder.preTags("<span style='color:red'>");
highlightBuilder.postTags("</span>");
highlightBuilder.requireFieldMatch(true); // 多个高亮
sourceBuilder.highlighter(highlightBuilder);
// 执行搜索
searchRequest.source(sourceBuilder);
SearchResponse searchResponse = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);
// 解析结果
ArrayList<Map<String, Object>> list = new ArrayList<>();
for (SearchHit hit : searchResponse.getHits().getHits()) {
// 解析高亮的字段
Map<String, HighlightField> highlightFields = hit.getHighlightFields();
HighlightField title = highlightFields.get("title");
Map<String, Object> sourceAsMap = hit.getSourceAsMap(); // 原来的结果
if (title != null) {
Text[] fragments = title.fragments();
String n_title = "";
for (Text text: fragments) {
n_title += text;
}
sourceAsMap.put("title",n_title);
}
list.add(hit.getSourceAsMap());
}
return list;
}
}
- pojo
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Content {
private String title;
private String img;
private String price;
}
- utils
@Component
public class HtmlParseUtil {
public static void main(String[] args) throws Exception {
new HtmlParseUtil().parseJD("娃哈哈").forEach(System.out::println);
}
public List<Content> parseJD(String keyword) throws Exception {
String url = "https://search.jd.com/Search?keyword="+keyword+"&enc=utf-8";
Document document = Jsoup.parse(new URL(url), 30000);
Element element = document.getElementById("J_goodsList");
Elements elements = element.getElementsByTag("li");
ArrayList<Content> goodsList= new ArrayList<>();
for (Element el : elements) {
String img = el.getElementsByTag("img").eq(0).attr("source-data-lazy-img");
String price = el.getElementsByClass("p-price").eq(0).text();
String title = el.getElementsByClass("p-name").eq(0).text();
Content content = new Content();
content.setImg(img);
content.setPrice(price);
content.setTitle(title);
goodsList.add(content);
}
return goodsList;
}
}
- index
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="utf-8"/>
<title>狂神说Java-ES仿京东实战</title>
<link rel="stylesheet" th:href="@{/css/style.css}"/>
<script th:src="@{/js/vue.min.js}"></script>
<script th:src="@{/js/axios.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>天猫搜索</legend>
<div class="mallSearch-input clearfix">
<div class="s-combobox" id="s-combobox-685">
<div class="s-combobox-input-wrap">
<input v-model="keyword" type="text" autocomplete="off" value="dd" id="mq"
class="s-combobox-input" aria-haspopup="true">
</div>
</div>
<button @click.prevent="searchKey" type="submit" id="searchbtn">搜索</button>
</div>
</fieldset>
</form>
<ul class="relKeyTop">
<li><a>狂神说Java</a></li>
<li><a>狂神说前端</a></li>
<li><a>狂神说Linux</a></li>
<li><a>狂神说大数据</a></li>
<li><a>狂神聊理财</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="#"> 狂神说 </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： 狂神说Java </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>
<script th:src="@{/js/axios.min.js}"></script>
<script th:src="@{/js/vue.min.js}"></script>
<script>
new Vue({
el: '#app',
data: {
keyword:'', // 搜索的关键字
results:[] // 搜索结果
},
methods:{
searchKey(){
var keyword = this.keyword;
// 对接接口
axios.get('search/' + keyword + "/1/10").then(response => {
// console.log(response);
this.results = response.data; // 绑定数据
})
}
}
})
</script>
</body>
</html>
静态资源：https://pan.baidu.com/s/1GG9IyeIxPa6z0UJztDqUsQ 验证码
gnpb
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