【SSM分布式架构电商项目-25】创建搜索系统

创建搜索系统taotao-search

导入依赖

<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
        <groupId>com.taotao.parent</groupId>
        <artifactId>taotao-parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

  <groupId>com.taotao.search</groupId>
  <artifactId>taotao-search</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>

  <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </dependency>
        <!-- Jackson Json处理工具包 -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <!-- httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <!-- JSP相关 -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <!-- Apache工具组件 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>
<dependency>
            <groupId>org.apache.solr</groupId>
            <artifactId>solr-solrj</artifactId>
            <version>4.10.2</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <!-- 配置Tomcat插件 -->
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <port>8085</port>
                    <path>/</path>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

Web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    id="WebApp_ID" version="2.5">
    <display-name>taotao-search</display-name>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/applicationContext*.xml</param-value>
    </context-param>

    <!--Spring的ApplicationContext 载入 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 编码过滤器，以UTF8编码 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 配置SpringMVC框架入口 -->
    <servlet>
        <servlet-name>taotao-search</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/taotao-search-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>taotao-search</servlet-name>
        <!-- 
            伪静态
            伪静态有利于SEO（搜索引擎优化）
         -->
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>

    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>

</web-app>

导入界面

Solr和Spring的整合

配置nginx和hosts

配置nginx：

配置启动tomcat：

Controller

package com.taotao.search.controller;

import java.io.UnsupportedEncodingException;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import com.taotao.search.bean.SearchResult;
import com.taotao.search.service.ItemSearchService;

@Controller
public class SearchController {

    public static final Integer ROWS = 5;

    @Autowired
    private ItemSearchService itemSearchService;

    @RequestMapping(value = "search", method = RequestMethod.GET)
    public ModelAndView search(@RequestParam("q") String keyWords,
            @RequestParam(value = "page", defaultValue = "1") Integer page) {
        ModelAndView mv = new ModelAndView("search");

        // 搜索关键字
        mv.addObject("query", keyWords);

        SearchResult searchResult = null;
        try {
            searchResult = this.itemSearchService.search(keyWords, page, ROWS);
        } catch (Exception e) {
            e.printStackTrace();
            searchResult = new SearchResult(0L, null);
        }

        // 搜索结果数据
        mv.addObject("itemList", searchResult.getList());

        // 页数
        mv.addObject("page", page);

        int total = searchResult.getTotal().intValue();
        int pages = total % ROWS == 0 ? total / ROWS : total / ROWS + 1;

        // 总页数
        mv.addObject("pages", pages);

        return mv;
    }

}

Service

package com.taotao.search.service;

import java.util.List;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.impl.HttpSolrServer;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.taotao.search.bean.Item;
import com.taotao.search.bean.SearchResult;

@Service
public class ItemSearchService {

    @Autowired
    private HttpSolrServer httpSolrServer;

    public SearchResult search(String keyWords, Integer page, Integer rows) throws Exception {
        SolrQuery solrQuery = new SolrQuery(); // 构造搜索条件
        solrQuery.setQuery("title:" + keyWords + " AND status:1"); // 搜索关键词
        // 设置分页 start=0就是从0开始，，rows=5当前返回5条记录，第二页就是变化start这个值为5就可以了。
        solrQuery.setStart((Math.max(page, 1) - 1) * rows);
        solrQuery.setRows(rows);

        // 是否需要高亮
        boolean isHighlighting = !StringUtils.equals("*", keyWords) && StringUtils.isNotEmpty(keyWords);

        if (isHighlighting) {
            // 设置高亮
            solrQuery.setHighlight(true); // 开启高亮组件
            solrQuery.addHighlightField("title");// 高亮字段
            solrQuery.setHighlightSimplePre("<em>");// 标记，高亮关键字前缀
            solrQuery.setHighlightSimplePost("</em>");// 后缀
        }

        // 执行查询
        QueryResponse queryResponse = this.httpSolrServer.query(solrQuery);
        List<Item> items = queryResponse.getBeans(Item.class);
        if (isHighlighting) {
            // 将高亮的标题数据写回到数据对象中
            Map<String, Map<String, List<String>>> map = queryResponse.getHighlighting();
            for (Map.Entry<String, Map<String, List<String>>> highlighting : map.entrySet()) {
                for (Item item : items) {
                    if (!highlighting.getKey().equals(item.getId().toString())) {
                        continue;
                    }
                    item.setTitle(StringUtils.join(highlighting.getValue().get("title"), ""));
                    break;
                }
            }
        }

        return new SearchResult(queryResponse.getResults().getNumFound(), items);
    }

}

SearchResult

package com.taotao.search.bean;

import java.util.List;

public class SearchResult {

    private Long total;

    private List<?> list;

    public SearchResult() {

    }

    public SearchResult(Long total, List<?> list) {
        this.total = total;
        this.list = list;
    }

    public Long getTotal() {
        return total;
    }

    public void setTotal(Long total) {
        this.total = total;
    }

    public List<?> getList() {
        return list;
    }

    public void setList(List<?> list) {
        this.list = list;
    }

}![这里写图片描述](https://img-blog.csdn.net/20180512224035957?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70)

测试

分页JS逻辑

具体方法：


效果：

下一页的逻辑：

解决中文乱码问题

测试：

多词搜索的逻辑关系

测试：