1.什么是Redis Search？

RedisSearch 是一个基于 Redis 的搜索引擎模块，它提供了全文搜索、索引和聚合功能。通过 RedisSearch，可以为 Redis 中的数据创建索引，执行复杂的搜索查询，并实现高级功能，如自动完成、分面搜索和排序。利用 Redis 的高性能特点，RedisSearch 可以实现高效的搜索和实时分析。对于微服务架构来说，RedisSearch 可以作为搜索服务的一部分，提供快速、高效的搜索能力，对于提高用户体验和性能具有重要的意义。

2.环境搭建

Docker Compose

version: '3'
services:

  redis:
    image: redis/redis-stack
    container_name: redis
    ports:
      - 6379:6379

  redis-insight:
    image: redislabs/redisinsight
    container_name: redis-insight
    ports:
      - 8001:8001

Run following command:

docker-compose up -d

3.代码工程

实验目的

利用redis search 实现文本搜索功能

pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.2.1</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>RedisSearch</artifactId>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
    </properties>
    <dependencies>


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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.redis.om</groupId>
            <artifactId>redis-om-spring</artifactId>
            <version>0.8.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>


    </dependencies>
</project>

controller

package com.et.controller;


import com.et.redis.document.Student;
import com.et.redis.document.StudentRepository;
import com.et.redis.hash.Person;
import com.et.redis.hash.PersonRepository;
import jakarta.websocket.server.PathParam;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;


@RestController
public class WebController {

    private PersonRepository personRepository;
    private StudentRepository studentRepository;

    public WebController(PersonRepository personRepository, StudentRepository studentRepository) {
        this.personRepository = personRepository;
        this.studentRepository = studentRepository;
    }

    @PostMapping("/person")
    public Person save(@RequestBody Person person) {
        return personRepository.save(person);
    }

    @GetMapping("/person")
    public Person get(@PathParam("name") String name, @PathParam("searchLastName") String searchLastName) {
        if (name != null)
            return this.personRepository.findByName(name)
                    .orElseThrow(() -> new RuntimeException("person not found"));

        if (searchLastName != null)
            return this.personRepository.searchByLastName(searchLastName)
                    .orElseThrow(() -> new RuntimeException("person not found"));

        return null;
    }

// ---- Student Endpoints
    @PostMapping("/student")
    public Student saveStudent(@RequestBody Student student) {
        return studentRepository.save(student);
    }

    @GetMapping("/student")
    public Student getStudent(@PathParam("name") String name, @PathParam("searchLastName") String searchLastName) {
        if (name != null)
            return this.studentRepository.findByName(name)
                    .orElseThrow(() -> new RuntimeException("Student not found"));

        if (searchLastName != null)
            return this.studentRepository.searchByLastName(searchLastName)
                    .orElseThrow(() -> new RuntimeException("Student not found"));

        return null;
    }
    @ExceptionHandler(value = RuntimeException.class)
    public ResponseEntity handleError(RuntimeException e) {
        return ResponseEntity
                .status(HttpStatus.NOT_FOUND)
                .body(e.getMessage());
    }


}

@RedisHash 方式

package com.et.redis.hash;

import com.redis.om.spring.annotations.Indexed;
import com.redis.om.spring.annotations.Searchable;
import org.springframework.data.annotation.Id;
import org.springframework.data.redis.core.RedisHash;

@RedisHash
public class Person {

    @Id
    private String id;
    @Indexed
    private String name;

    @Searchable
    private String lastName;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
}

package com.et.redis.hash;

import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import java.util.Optional;

@Repository
public interface PersonRepository extends CrudRepository<Person, String> {

    Optional<Person> findByName(String name);
    Optional<Person> searchByLastName(String name);
}

@Document 方式

package com.et.redis.document;

import com.redis.om.spring.annotations.Document;
import com.redis.om.spring.annotations.Indexed;
import com.redis.om.spring.annotations.Searchable;
import org.springframework.data.annotation.Id;

@Document
public class Student {

    @Id
    private String id;
    @Indexed
    private String name;

    @Searchable
    private String lastName;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
}

package com.et.redis.document;

import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import java.util.Optional;

@Repository
public interface StudentRepository extends CrudRepository<Student, String> {

    Optional<Student> findByName(String name);
    Optional<Student> searchByLastName(String name);
}

DemoApplication

package com.et;

import com.redis.om.spring.annotations.EnableRedisDocumentRepositories;
import com.redis.om.spring.annotations.EnableRedisEnhancedRepositories;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@EnableRedisDocumentRepositories(basePackages = "com.et.redis.document")
@EnableRedisEnhancedRepositories(basePackages = "com.et.redis.hash")
@SpringBootApplication
public class DemoApplication {

   public static void main(String[] args) {
      SpringApplication.run(DemoApplication.class, args);
   }
}

application.yaml

server:
  port: 8088
spring:
  redis:
    host: localhost
    port: 6379

只是一些关键代码，所有代码请参见下面代码仓库

代码仓库

• https://github.com/Harries/springboot-demo(redis search)

4.测试

启动Spring boot应用

测试hash方式

插入一个实体

查询

模糊查询redis数据（*rab*）

查看redis数据库数据

redis数据库模糊查询

测试json document方式

同样的方式插入json文档，然后在你redis数据库里面查看

5.引用

• https://blog.devgenius.io/redis-search-with-spring-boot-and-redis-om-searchable-indexed-ttl-ccf2fb027d96
• https://refactorfirst.com/spring-boot-with-redis-stack-and-redis-insight