Springboot中使用es

目录

• 六、在Springboot中使用es
  • 1.引入依赖
  • 2.编写配置文件
  • 3.编写查询接口
  • 4.访问接口 获得数据

六、在Springboot中使用es

通过创建springboot项目--作为es的服务，提供多种接口，实现es中数据的增删改查。

1.引入依赖

<?xml version="1.0" encoding="UTF-8"?>
<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>4.0.0</modelVersion>
    <groupId>com.qf</groupId>
    <artifactId>es-server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>es-server</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
            <version>6.5.4</version>
        </dependency>

        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-high-level-client</artifactId>
            <version>6.5.4</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.7.RELEASE</version>
                <configuration>
                    <mainClass>com.qf.es.server.EsServerApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

2.编写配置文件

server:
  port: 8099
#指明es服务器地址
spring:
  elasticsearch:
    rest:
      uris: http://172.16.253.9:9200

3.编写查询接口

package com.qf.es.server.controller;

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.index.query.QueryBuilders;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.aggregations.AggregationBuilders;
import org.elasticsearch.search.aggregations.bucket.range.Range;
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.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io.IOException;

/**
 * 查询数据的接口
 */
@RestController
@RequestMapping("/sms")
public class SearchController {

    @Autowired
    private RestHighLevelClient client;

    @RequestMapping("/match/all")
    public String matchAll() throws IOException {
        String index = "sms-logs-index";
        String type = "sms-logs-type";
        SearchRequest request = new SearchRequest(index);
        request.types(type);

        //2.指明使用matchall查询
        SearchSourceBuilder builder = new SearchSourceBuilder();
        builder.query(QueryBuilders.matchAllQuery());
        builder.size(10);
        request.source(builder);

        //3.发送请求
        SearchResponse response = client.search(request, RequestOptions.DEFAULT);

        //4.输出
        return response.toString();
    }

    @RequestMapping("/match/highlight")
    public String matchHighlight(String keyword) throws IOException {

        String index = "sms-logs-index";
        String type = "sms-logs-type";

        SearchRequest request = new SearchRequest(index);
        request.types(type);

        //2.指明使用match查询
        SearchSourceBuilder builder = new SearchSourceBuilder();
        builder.query(QueryBuilders.matchQuery("smsContent",keyword));
        builder.size(10);

        //3.设置高亮的参数配置
        HighlightBuilder highlightBuilder = new HighlightBuilder();
        //指明高亮字段和带回几个字符
        highlightBuilder.field("smsContent",10)
                .preTags("<span style='color:red'>")
                .postTags("</span>");
        builder.highlighter(highlightBuilder);

        request.source(builder);

        //3.发送请求
        SearchResponse response = client.search(request, RequestOptions.DEFAULT);

        return response.toString();
    }



}

4.访问接口 获得数据