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solr开发 小案例
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <!-- 设置编码 --> <filter> <filter-name>charset</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>charset</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- springmvc核心配置 --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 配置springmvc核心文件的路径 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.test</url-pattern> </servlet-mapping> </web-app>
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!-- 包扫描 --> <context:component-scan base-package="zr.com"/> <!-- 开启SpringMVC的相关注解 --> <mvc:annotation-driven/> <!-- 视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> </beans>
package zr.com.pojo; public class Info { private String id; private String courseID; private String courseName; private String courseContent; private String schoolName; private String schoolShortName; private String classID; private String className; private String courseprice; private String courseAreaID; private String areaName; private String OrderNum; private String HotScoreAvg; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getCourseID() { return courseID; } public void setCourseID(String courseID) { this.courseID = courseID; } public String getCourseName() { return courseName; } public void setCourseName(String courseName) { this.courseName = courseName; } public String getCourseContent() { return courseContent; } public void setCourseContent(String courseContent) { this.courseContent = courseContent; } public String getSchoolName() { return schoolName; } public void setSchoolName(String schoolName) { this.schoolName = schoolName; } public String getSchoolShortName() { return schoolShortName; } public void setSchoolShortName(String schoolShortName) { this.schoolShortName = schoolShortName; } public String getClassID() { return classID; } public void setClassID(String classID) { this.classID = classID; } public String getClassName() { return className; } public void setClassName(String className) { this.className = className; } public String getCourseprice() { return courseprice; } public void setCourseprice(String courseprice) { this.courseprice = courseprice; } public String getCourseAreaID() { return courseAreaID; } public void setCourseAreaID(String courseAreaID) { this.courseAreaID = courseAreaID; } public String getAreaName() { return areaName; } public void setAreaName(String areaName) { this.areaName = areaName; } public String getOrderNum() { return OrderNum; } public void setOrderNum(String orderNum) { OrderNum = orderNum; } public String getHotScoreAvg() { return HotScoreAvg; } public void setHotScoreAvg(String hotScoreAvg) { HotScoreAvg = hotScoreAvg; } public Info() { super(); } public Info(String id, String courseID, String courseName, String courseContent, String schoolName, String schoolShortName, String classID, String className, String courseprice, String courseAreaID, String areaName, String orderNum, String hotScoreAvg) { super(); this.id = id; this.courseID = courseID; this.courseName = courseName; this.courseContent = courseContent; this.schoolName = schoolName; this.schoolShortName = schoolShortName; this.classID = classID; this.className = className; this.courseprice = courseprice; this.courseAreaID = courseAreaID; this.areaName = areaName; OrderNum = orderNum; HotScoreAvg = hotScoreAvg; } @Override public String toString() { return "Info [id=" + id + ", courseID=" + courseID + ", courseName=" + courseName + ", courseContent=" + courseContent + ", schoolName=" + schoolName + ", schoolShortName=" + schoolShortName + ", classID=" + classID + ", className=" + className + ", courseprice=" + courseprice + ", courseAreaID=" + courseAreaID + ", areaName=" + areaName + ", OrderNum=" + OrderNum + ", HotScoreAvg=" + HotScoreAvg + "]"; } }
package zr.com.util; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.apache.solr.client.solrj.SolrQuery; import org.apache.solr.client.solrj.SolrServer; import org.apache.solr.client.solrj.SolrServerException; import org.apache.solr.client.solrj.SolrQuery.ORDER; import org.apache.solr.client.solrj.impl.HttpSolrServer; import org.apache.solr.client.solrj.response.QueryResponse; import org.apache.solr.common.SolrDocument; import org.apache.solr.common.SolrDocumentList; import org.junit.Test; import zr.com.pojo.Info; public class SearchUtil { private static SolrServer server; static{ server = new HttpSolrServer("http://192.168.10.105:18080"); } /** * 查询 * @throws SolrServerException */ public static List<Info> queryTest(String queryString,int star,int size) throws SolrServerException{ List<Info> infos = new ArrayList<Info>(); // 建立请求 // SolrServer server = new HttpSolrServer("http://192.168.10.105:18080"); // 创建查询对象 SolrQuery query = new SolrQuery(); // 查询语句的处理(模糊查询,添加双引号即可) String queryStr = queryString; // 设置高亮显示 // 是否设置高亮 query.setHighlight(true); // 前缀 query.setHighlightSimplePre("<em>"); // 后缀 query.setHighlightSimplePost("</em>"); // 设置高亮文本的长度 query.setHighlightFragsize(8); query.setHighlightRequireFieldMatch(true); // 设置高亮的字段 query.addHighlightField("courseName"); query.setQuery(queryStr); // 分页(起始位置) query.setStart(star); // 分页(每一页显示的条数) query.setRows(size); // // 排序(降序) // query.setSort("courseName", ORDER.desc); //执行查询 QueryResponse response = server.query(query); // 获取高亮的信息 Map<String, Map<String, List<String>>> map = response.getHighlighting(); System.out.println(map); //执行查询 // QueryResponse response = server.query(query); // 获取响应后的结果集 SolrDocumentList list = response.getResults(); for (SolrDocument solrDocument : list) { // 获取ID String id = SearchUtil.dealNull(solrDocument, "id"); String courseID = SearchUtil.dealNull(solrDocument, "courseID"); String courseName = SearchUtil.dealNull(solrDocument, "courseName"); String courseContent = SearchUtil.dealNull(solrDocument, "courseContent"); String schoolName = SearchUtil.dealNull(solrDocument, "schoolName"); String schoolShortName = SearchUtil.dealNull(solrDocument, "schoolShortName"); String classID = SearchUtil.dealNull(solrDocument, "classID"); String className = SearchUtil.dealNull(solrDocument, "className"); String courseprice = SearchUtil.dealNull(solrDocument, "courseprice"); String courseAreaID = SearchUtil.dealNull(solrDocument, "courseAreaID"); String areaName = SearchUtil.dealNull(solrDocument, "areaName"); String OrderNum = SearchUtil.dealNull(solrDocument, "OrderNum"); String HotScoreAvg = SearchUtil.dealNull(solrDocument, "HotScoreAvg"); // 高亮替换 Map<String, List<String>> hlisMap = map.get(id); if (hlisMap!=null) { // System.out.println(hlisMap); Object cName = hlisMap.get("courseName"); if (cName!=null) { // 替换 courseName = cName.toString(); } } Info info = new Info(id, courseID, courseName, courseContent, schoolName, schoolShortName, classID, className, courseprice, courseAreaID, areaName, OrderNum, HotScoreAvg); infos.add(info); // System.out.println("id:"+id+",courseName:"+courseName+",schoolShortName:"+schoolShortName); } return infos; } /** * 处理空异常 * @return */ private static String dealNull(SolrDocument solrDocument,String field){ String fieldValue = null; if (solrDocument.getFieldValue(field) != null) { fieldValue = solrDocument.getFieldValue(field).toString(); } return fieldValue; } }
package zr.com.controller; import java.io.IOException; import java.io.PrintWriter; import java.io.UnsupportedEncodingException; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.solr.client.solrj.SolrServerException; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import com.alibaba.fastjson.JSON; import zr.com.pojo.Info; import zr.com.util.SearchUtil; /** * * @author lf * */ @Controller public class SolrController { /** * 进入search页面 * @return */ @RequestMapping("/lf") public String comeInPage(){ return "search"; } /** * 获取数据 * @param paramter * @param request * @param response * @throws SolrServerException * @throws IOException */ @RequestMapping(value="search",method=RequestMethod.GET) public void getData(String paramter,HttpServletRequest request,HttpServletResponse response) throws SolrServerException, IOException{ // 设置编码 // request.setCharacterEncoding("utf-8"); // response.setCharacterEncoding("utf-8"); System.out.println("准备获取相关数据..."); System.out.println("paramter:"+paramter); String query = "courseName:"+paramter; // 获取响应的数据数据 List<Info> infos = SearchUtil.queryTest(query,0,10); // 遍历 // for (Info info : infos) { // System.out.println(info); // } //设置文本类型的编码为UTF-8 response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); String jsonString = JSON.toJSONString(infos); // 输出 out.print(jsonString); out.flush(); out.close(); System.out.println(jsonString); } }
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>搜索引擎</title> </head> <body> <br><br><br> <div> <input id="search" placeholder="请输入你要搜索的内容" /> <button onclick="getData()">搜索</button> <br> <table id="table"> </table> </div> <style type="text/css"> em {color:red;} </style> <script type="text/javascript"> // 异步请求 function getData(){ var value = document.getElementById("search").value; // 创建请求对象 var request = new XMLHttpRequest(); // 请求方式 var method = "GET"; // 链接 var url = "search.test?paramter="+value; /* alert(url); */ // 初始化参数 request.open(method, url, true); // 发送请求 request.send(null); request.onreadystatechange = function(){ // 如果响应请求 if(request.status==200 || request.status == 304){ var text = request.responseText; var jsonData = eval("("+text+")"); // 获取table var table = document.getElementById("table"); /* alert(jsonData); */ // 清除table的数据 var rowNum=table.rows.length; for (var i=0;i<rowNum;i++) { table.deleteRow(i); rowNum=rowNum-1; i=i-1; } // 添加数据 for(var i = 0;i < jsonData.length;i++ ){ // 添加行 var row = table.insertRow(); // 添加单元格 var cell = row.insertCell(); // 设置内容 cell.innerHTML = jsonData[i]["areaName"]+jsonData[i]["className"] +jsonData[i]["courseAreaID"]+jsonData[i]["courseContent"] +jsonData[i]["courseID"]+jsonData[i]["courseName"] +jsonData[i]["courseprice"]+jsonData[i]["hotScoreAvg"] +jsonData[i]["id"]+jsonData[i]["orderNum"] +jsonData[i]["schoolName"]+jsonData[i]["schoolShortName"] +jsonData[i]["classID"]+jsonData[i]["className"] +jsonData[i]["courseAreaID"]+jsonData[i]["HotScoreAvg"]; } } }; } </script> </body> </html>
solr开发 小案例
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