fix:课程搜索项目

pom.xml

@@ -15,7 +15,7 @@
         <dependency>
             <groupId>org.elasticsearch.client</groupId>
             <artifactId>elasticsearch-rest-high-level-client</artifactId>
-            <version>7.3.0</version>
+            <version>7.12.0</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.elasticsearch</groupId>
@@ -26,7 +26,7 @@
         <dependency>
             <groupId>org.elasticsearch</groupId>
             <artifactId>elasticsearch</artifactId>
-            <version>7.3.0</version>
+            <version>7.12.0</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -39,15 +39,30 @@
             <scope>test</scope>
             <version>2.0.6.RELEASE</version>
         </dependency>
+        <dependency>
+            <groupId>org.elasticsearch.plugin</groupId>
+            <artifactId>x-pack-sql-jdbc</artifactId>
+            <version>7.3.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <version>2.0.1.RELEASE</version>
+        </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
             <version>1.16.10</version>
         </dependency>
         <dependency>
-            <groupId>org.elasticsearch.plugin</groupId>
-            <artifactId>x-pack-sql-jdbc</artifactId>
-            <version>7.3.0</version>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>1.3.2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>3.1</version>
         </dependency>
     </dependencies>
     <repositories>

src/main/java/com/kwan/shuyu/SearchApplication.java

@@ -3,10 +3,9 @@ package com.kwan.shuyu;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
-
 @SpringBootApplication
 public class SearchApplication {
     public static void main(String[] args) {
-        SpringApplication.run(SearchApplication.class,args);
+        SpringApplication.run(SearchApplication.class, args);
     }
 }

src/main/java/com/kwan/shuyu/controller/EsCourseController.java

+package com.kwan.shuyu.controller;
+
+import com.kwan.shuyu.domain.CoursePub;
+import com.kwan.shuyu.domain.CourseSearchParam;
+import com.kwan.shuyu.domain.QueryResponseResult;
+import com.kwan.shuyu.service.EsCourseServiceImpl;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/search/course")
+public class EsCourseController {
+
+    @Autowired
+    private EsCourseServiceImpl esCourseServiceImpl;
+
+    @GetMapping(value = "/list/{page}/{size}")
+    public QueryResponseResult<CoursePub> list(@PathVariable("page") int page
+            , @PathVariable("size") int size, CourseSearchParam courseSearchParam) {
+        return esCourseServiceImpl.list(page, size, courseSearchParam);
+    }
+}
\ No newline at end of file

src/main/java/com/kwan/shuyu/domain/CommonCode.java

+package com.kwan.shuyu.domain;
+
+
+import lombok.ToString;
+
+/**
+ * @author : qinyingjie
+ * @version : 2.2.0
+ * @date : 2023/5/13 22:20
+ */
+@ToString
+public enum CommonCode implements ResultCode {
+    INVALID_PARAM(false, 10003, "非法参数！"),
+    SUCCESS(true, 10000, "操作成功！"),
+    FAIL(false, 11111, "操作失败！"),
+    UNAUTHENTICATED(false, 10001, "此操作需要登陆系统！"),
+    UNAUTHORISE(false, 10002, "权限不足，无权操作！"),
+    SERVER_ERROR(false, 99999, "抱歉，系统繁忙，请稍后重试！");
+    /**
+     * 操作是否成功
+     */
+    boolean success;
+    /**
+     * 操作代码
+     */
+    int code;
+    /**
+     * 提示信息
+     */
+    String message;
+
+    private CommonCode(boolean success, int code, String message) {
+        this.success = success;
+        this.code = code;
+        this.message = message;
+    }
+
+
+    @Override
+    public boolean success() {
+        return success;
+    }
+
+    @Override
+    public int code() {
+        return code;
+    }
+
+    @Override
+    public String message() {
+        return message;
+    }
+}

src/main/java/com/kwan/shuyu/domain/CoursePub.java

+package com.kwan.shuyu.domain;
+
+import lombok.Data;
+import lombok.ToString;
+
+import java.io.Serializable;
+import java.util.Date;
+
+@Data
+@ToString
+public class CoursePub implements Serializable {
+    private static final long serialVersionUID = -916357110051689487L;
+    private String id;
+    private String name;
+    private String users;
+    private String mt;
+    private String st;
+    private String grade;
+    private String studymodel;
+    private String teachmode;
+    private String description;
+    /**
+     * 图片
+     */
+    private String pic;
+    /**
+     * 时间戳
+     */
+    private Date timestamp;
+    private String charge;
+    private String valid;
+    private String qq;
+    private Double price;
+    private Double price_old;
+    private String expires;
+    /**
+     * 课程计划
+     */
+    private String teachplan;
+    /**
+     * 课程发布时间
+     */
+    private String pubTime;
+}
\ No newline at end of file

src/main/java/com/kwan/shuyu/domain/CourseSearchParam.java

+package com.kwan.shuyu.domain;
+
+import lombok.Data;
+import lombok.ToString;
+
+@Data
+@ToString
+public class CourseSearchParam {
+    /**
+     * 关键字
+     */
+    String keyword;
+    /**
+     * 一级分类
+     */
+    String mt;
+    /**
+     * 二级分类
+     */
+    String st;
+    /**
+     * 难度等级
+     */
+    String grade;
+    /**
+     * 价格区间
+     */
+    Float price_min;
+    Float price_max;
+    /**
+     * 排序字段
+     */
+    String sort;
+    /**
+     * 过虑字段
+     */
+    String filter;
+}
\ No newline at end of file

src/main/java/com/kwan/shuyu/domain/QueryResponseResult.java

+package com.kwan.shuyu.domain;
+
+import lombok.Data;
+import lombok.ToString;
+
+@Data
+@ToString
+public class QueryResponseResult<T> extends ResponseResult {
+
+    QueryResult<T> queryResult;
+
+    public QueryResponseResult(ResultCode resultCode, QueryResult queryResult) {
+        super(resultCode);
+        this.queryResult = queryResult;
+    }
+}
\ No newline at end of file

src/main/java/com/kwan/shuyu/domain/QueryResult.java

+package com.kwan.shuyu.domain;
+
+import lombok.Data;
+import lombok.ToString;
+
+import java.util.List;
+
+
+@Data
+@ToString
+public class QueryResult<T> {
+    /**
+     * 数据列表
+     */
+    private List<T> list;
+    /**
+     * 数据总数
+     */
+    private long total;
+}

src/main/java/com/kwan/shuyu/domain/Response.java

+package com.kwan.shuyu.domain;
+
+
+public interface Response {
+    public static final boolean SUCCESS = true;
+    public static final int SUCCESS_CODE = 10000;
+}

src/main/java/com/kwan/shuyu/domain/ResponseResult.java

+package com.kwan.shuyu.domain;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+
+@Data
+@ToString
+@NoArgsConstructor
+public class ResponseResult implements Response {
+
+    /**
+     * 操作是否成功
+     */
+    boolean success = SUCCESS;
+
+    /**
+     * 操作代码
+     */
+    int code = SUCCESS_CODE;
+
+    /**
+     * 提示信息
+     */
+    String message;
+
+    public ResponseResult(ResultCode resultCode) {
+        this.success = resultCode.success();
+        this.code = resultCode.code();
+        this.message = resultCode.message();
+    }
+}

src/main/java/com/kwan/shuyu/domain/ResultCode.java

+package com.kwan.shuyu.domain;
+
+
+public interface ResultCode {
+    /**
+     * 操作是否成功,true为成功，false操作失败
+     */
+    boolean success();
+
+    /**
+     * 操作代码
+     */
+    int code();
+
+    /**
+     * 提示信息
+     */
+    String message();
+}

src/main/java/com/kwan/shuyu/service/EsCourseServiceImpl.java

+package com.kwan.shuyu.service;
+
+import com.kwan.shuyu.domain.*;
+import com.kwan.shuyu.service.impl.EsCourseService;
+import org.apache.commons.lang3.StringUtils;
+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.index.query.BoolQueryBuilder;
+import org.elasticsearch.index.query.MultiMatchQueryBuilder;
+import org.elasticsearch.index.query.QueryBuilders;
+import org.elasticsearch.search.SearchHit;
+import org.elasticsearch.search.SearchHits;
+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.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+
+@Service
+public class EsCourseServiceImpl implements EsCourseService {
+
+    @Value("${kwan.course.source_field}")
+    private String source_field;
+    @Autowired
+    private RestHighLevelClient restHighLevelClient;
+
+    /**
+     * 课程搜索
+     *
+     * @param page
+     * @param size
+     * @param courseSearchParam
+     * @return
+     */
+    @Override
+    public QueryResponseResult<CoursePub> list(int page, int size, CourseSearchParam courseSearchParam) {
+        if (courseSearchParam == null) {
+            courseSearchParam = new CourseSearchParam();
+        }
+        //1创建搜索请求对象
+        SearchRequest searchRequest = new SearchRequest("xc_course");
+        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
+        //过虑源字段
+        String[] source_field_array = source_field.split(",");
+        searchSourceBuilder.fetchSource(source_field_array, new String[]{});
+        //创建布尔查询对象
+        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
+        //搜索条件
+        //根据关键字搜索
+        if (StringUtils.isNotEmpty(courseSearchParam.getKeyword())) {
+            MultiMatchQueryBuilder multiMatchQueryBuilder =
+                    QueryBuilders
+                            .multiMatchQuery(courseSearchParam.getKeyword(), "name", "description", "teachplan")
+                            .minimumShouldMatch("70%")
+                            .field("name", 10);
+            boolQueryBuilder.must(multiMatchQueryBuilder);
+        }
+        if (StringUtils.isNotEmpty(courseSearchParam.getMt())) {
+            //根据一级分类
+            boolQueryBuilder.filter(QueryBuilders.termQuery("mt", courseSearchParam.getMt()));
+        }
+        if (StringUtils.isNotEmpty(courseSearchParam.getSt())) {
+            //根据二级分类
+            boolQueryBuilder.filter(QueryBuilders.termQuery("st", courseSearchParam.getSt()));
+        }
+        if (StringUtils.isNotEmpty(courseSearchParam.getGrade())) {
+            //根据难度等级
+            boolQueryBuilder.filter(QueryBuilders.termQuery("grade", courseSearchParam.getGrade()));
+        }
+        //设置boolQueryBuilder到searchSourceBuilder
+        searchSourceBuilder.query(boolQueryBuilder);
+        //设置分页参数
+        if (page <= 0) {
+            page = 1;
+        }
+        if (size <= 0) {
+            size = 12;
+        }
+        //起始记录下标
+        int from = (page - 1) * size;
+        searchSourceBuilder.from(from);
+        searchSourceBuilder.size(size);
+        //设置高亮
+        HighlightBuilder highlightBuilder = new HighlightBuilder();
+        highlightBuilder.preTags("<font class='eslight'>");
+        highlightBuilder.postTags("</font>");
+        //设置高亮字段
+        highlightBuilder.fields().add(new HighlightBuilder.Field("name"));
+        searchSourceBuilder.highlighter(highlightBuilder);
+        searchRequest.source(searchSourceBuilder);
+        QueryResult<CoursePub> queryResult = new QueryResult();
+        List<CoursePub> list = new ArrayList<>();
+        try {
+            //2执行搜索
+            SearchResponse searchResponse = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);
+            //3获取响应结果
+            SearchHits hits = searchResponse.getHits();
+            long totalHits = hits.getTotalHits().value;
+            //匹配的总记录数
+            queryResult.setTotal(totalHits);
+            SearchHit[] searchHits = hits.getHits();
+            for (SearchHit hit : searchHits) {
+                CoursePub coursePub = new CoursePub();
+                //源文档
+                Map<String, Object> sourceAsMap = hit.getSourceAsMap();
+                //取出id
+                String id = (String) sourceAsMap.get("id");
+                coursePub.setId(id);
+                //取出name
+                String name = (String) sourceAsMap.get("name");
+                //取出高亮字段name
+                Map<String, HighlightField> highlightFields = hit.getHighlightFields();
+                if (highlightFields != null) {
+                    HighlightField highlightFieldName = highlightFields.get("name");
+                    if (highlightFieldName != null) {
+                        Text[] fragments = highlightFieldName.fragments();
+                        StringBuffer stringBuffer = new StringBuffer();
+                        for (Text text : fragments) {
+                            stringBuffer.append(text);
+                        }
+                        name = stringBuffer.toString();
+                    }
+                }
+                coursePub.setName(name);
+                //图片
+                String pic = (String) sourceAsMap.get("pic");
+                coursePub.setPic(pic);
+                //价格
+                Double price = null;
+                try {
+                    if (sourceAsMap.get("price") != null) {
+                        price = (Double) sourceAsMap.get("price");
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+                coursePub.setPrice(price);
+                //旧价格
+                Double price_old = null;
+                try {
+                    if (sourceAsMap.get("price_old") != null) {
+                        price_old = (Double) sourceAsMap.get("price_old");
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+                coursePub.setPrice_old(price_old);
+                //将coursePub对象放入list
+                list.add(coursePub);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        queryResult.setList(list);
+        QueryResponseResult<CoursePub> queryResponseResult = new QueryResponseResult<>(CommonCode.SUCCESS, queryResult);
+        return queryResponseResult;
+    }
+}
\ No newline at end of file

src/main/java/com/kwan/shuyu/service/impl/EsCourseService.java

+package com.kwan.shuyu.service.impl;
+
+import com.kwan.shuyu.domain.CoursePub;
+import com.kwan.shuyu.domain.CourseSearchParam;
+import com.kwan.shuyu.domain.QueryResponseResult;
+
+
+public interface EsCourseService {
+
+    /**
+     * 查询课程
+     *
+     * @param page
+     * @param size
+     * @param courseSearchParam
+     * @return
+     */
+    QueryResponseResult<CoursePub> list(int page, int size, CourseSearchParam courseSearchParam);
+}
\ No newline at end of file

src/main/resources/application.yml

@@ -7,3 +7,5 @@ spring:
 kwan:
   elasticsearch:
     hostlist: 47.119.160.231:9200 #多个节点用逗号分隔
+  course: #课程字段
+    source_field: id,name,grade,mt,st,charge,valid,pic,qq,price,price_old,status,studymodel,teachmode,expires,pub_time,start_time,end_time
\ No newline at end of file

src/main/resources/logback-spring.xml

 <?xml version="1.0" encoding="UTF-8"?>
-
 <configuration>
     <!--定义日志文件的存储地址,使用绝对路径-->
     <property name="LOG_HOME" value="/Users/qinyingjie/Downloads/"/>
-
     <!-- Console 输出设置 -->
     <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
         <encoder>
@@ -12,7 +10,6 @@
             <charset>utf8</charset>
         </encoder>
     </appender>
-
     <!-- 按照每天生成日志文件 -->
     <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
@@ -23,7 +20,6 @@
             <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
         </encoder>
     </appender>
-
     <!-- 异步输出 -->
     <appender name="ASYNC" class="ch.qos.logback.classic.AsyncAppender">
         <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 -->
@@ -33,8 +29,6 @@
         <!-- 添加附加的appender,最多只能添加一个 -->
         <appender-ref ref="FILE"/>
     </appender>
-
-
     <logger name="org.apache.ibatis.cache.decorators.LoggingCache" level="DEBUG" additivity="false">
         <appender-ref ref="CONSOLE"/>
     </logger>

src/test/java/es_06_log/TestLog.java

+package es_06_log;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.util.Random;
+
+/**
+ * 测试ELK查看log
+ *
+ * @author : qinyingjie
+ * @version : 2.2.0
+ * @date : 2023/5/13 22:14
+ */
+@SpringBootTest
+@RunWith(SpringRunner.class)
+public class TestLog {
+    private static final Logger LOGGER = LoggerFactory.getLogger(TestLog.class);
+
+    @Test
+    public void testLog() {
+        Random random = new Random();
+        while (true) {
+            int userid = random.nextInt(10);
+            LOGGER.info("userId:{},send:{}", userid, "hello world.I am " + userid);
+            try {
+                Thread.sleep(500);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}
\ No newline at end of file