Java编程语言SpringBoot框架整合Redis，根据博客步骤操作就可以了

导入Redis和连接池依赖

<!-- Redis依赖 -->
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

<!-- 连接池依赖 -->
<dependency>
   <groupId>org.apache.commons</groupId>
   <artifactId>commons-pool2</artifactId>
</dependency>

设置Redis配置

spring:
  redis:
    ## Redis数据库索引（默认为0）
    database: 0
    ## Redis服务器地址
    host: 127.0.0.1
    ## Redis服务器连接端口
    port: 6379
    ## Redis服务器连接密码（默认为空）
    password:
    lettuce:
      pool:
        ## 连接池最大连接数（使用负值表示没有限制）
        #spring.redis.pool.max-active=8
        max-active: 8
        ## 连接池最大阻塞等待时间（使用负值表示没有限制）
        #spring.redis.pool.max-wait=-1
        max-wait: -1
        ## 连接池中的最大空闲连接
        #spring.redis.pool.max-idle=8
        max-idle: 8
        ## 连接池中的最小空闲连接
        #spring.redis.pool.min-idle=0
        min-idle: 0
    ## 连接超时时间（毫秒）
    timeout: 30000

创建RedisConfig配置类

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author buddha
 * Redis配置类
 */
@Configuration
@AutoConfigureAfter(RedisAutoConfiguration.class)
public class RedisConfig {
    
    
    /**
     * 配置自定义redisTemplate
     * @return
     */
    @Bean
    RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
    
    

        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);

        //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
        Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class);

        ObjectMapper mapper = new ObjectMapper();
        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        serializer.setObjectMapper(mapper);

        template.setValueSerializer(serializer);
        //使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(serializer);
        template.afterPropertiesSet();
        return template;
    }
}

创建RedisUtil工具类

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.*;
import org.springframework.stereotype.Component;

import java.io.Serializable;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;

/**
 * @author buddha
 * Redis工具类
 */
@Component
public class RedisUtil {
    
    
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 写入缓存
     *
     * @param key 键
     * @param value 值
     * @return 写入结果true or false
     */
    public boolean set(final String key, Object value) {
    
    
        boolean result = false;
        try {
    
    
            ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
            operations.set(key, value);
            result = true;
        } catch (Exception e) {
    
    
            e.printStackTrace();
        }
        return result;
    }

    /**
     * 写入缓存设置时效时间
     *
     * @param key 键
     * @param value 值
     * @return 返回结果 true or false
     */
    public boolean set(final String key, Object value, Long expireTime, TimeUnit timeUnit) {
    
    
        boolean result = false;
        try {
    
    
            ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
            operations.set(key, value);
            redisTemplate.expire(key, expireTime, timeUnit);
            result = true;
        } catch (Exception e) {
    
    
            e.printStackTrace();
        }
        return result;
    }

    /**
     * 批量删除key
     *
     * @param keys 字符串方式
     */
    public void remove(final String... keys) {
    
    
        for (String key : keys) {
    
    
            remove(key);
        }
    }

    /**
     * 批量删除key
     *
     * @param pattern 表达式方式
     */
    public void removePattern(final String pattern) {
    
    
        Set<Serializable> keys = redisTemplate.keys(pattern);
        if (keys.size() > 0) {
    
    
            redisTemplate.delete(keys);
        }
    }

    /**
     * 删除对应的key
     *
     * @param key 单个字符串
     */
    public void remove(final String key) {
    
    
        if (exists(key)) {
    
    
            redisTemplate.delete(key);
        }
    }

    /**
     * 判断缓存中是否有对应的value
     *
     * @param key 键
     * @return 返回结果true or false
     */
    public boolean exists(final String key) {
    
    
        return redisTemplate.hasKey(key);
    }

    /**
     * 读取缓存
     *
     * @param key 通过key获取对象
     * @return 返回结果
     */
    public Object get(final String key) {
    
    
        Object result = null;
        ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
        result = operations.get(key);
        return result;
    }

    /**
     * 哈希 添加
     *
     * @param key 键
     * @param hashKey 哈希键
     * @param value 值
     */
    public void hmSet(String key, Object hashKey, Object value) {
    
    
        HashOperations<String, Object, Object> hash = redisTemplate.opsForHash();
        hash.put(key, hashKey, value);
    }

    /**
     * 哈希获取数据
     *
     * @param key
     * @param hashKey
     * @return
     */
    public Object hmGet(String key, Object hashKey) {
    
    
        HashOperations<String, Object, Object> hash = redisTemplate.opsForHash();
        return hash.get(key, hashKey);
    }

    /**
     * 列表添加
     *
     * @param k
     * @param v
     */
    public void lPush(String k, Object v) {
    
    
        ListOperations<String, Object> list = redisTemplate.opsForList();
        list.rightPush(k, v);
    }

    /**
     * 列表获取
     *
     * @param k
     * @param l
     * @param l1
     * @return
     */
    public List<Object> lRange(String k, long l, long l1) {
    
    
        ListOperations<String, Object> list = redisTemplate.opsForList();
        return list.range(k, l, l1);
    }

    /**
     * 集合添加
     *
     * @param key
     * @param value
     */
    public void add(String key, Object value) {
    
    
        SetOperations<String, Object> set = redisTemplate.opsForSet();
        set.add(key, value);
    }

    /**
     * 集合获取
     *
     * @param key
     * @return
     */
    public Set<Object> setMembers(String key) {
    
    
        SetOperations<String, Object> set = redisTemplate.opsForSet();
        return set.members(key);
    }

    /**
     * 有序集合添加
     *
     * @param key
     * @param value
     * @param scoure
     */
    public void zAdd(String key, Object value, double scoure) {
    
    
        ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
        zset.add(key, value, scoure);
    }

    /**
     * 有序集合获取
     *
     * @param key
     * @param scoure
     * @param scoure1
     * @return
     */
    public Set<Object> rangeByScore(String key, double scoure, double scoure1) {
    
    
        ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
        return zset.rangeByScore(key, scoure, scoure1);
    }
}

Redis案例使用

@Autowired
RedisUtil redisUtil;

/**
 * @return 获取分类列表
 */
List<Category> getCategoryList() {
    
    
    if (redisUtil.exists(categoryList)) {
    
    
        log.info("从缓存获取数据");
        List<Category> categoryList = (List<Category>) redisUtil.get("categoryList");
        return categoryList;
    } else {
    
    
        log.info("从数据库获取数据");
        List<Category> categoryList = categoryService.list();
        // 数据库查到数据存到Redis中
        redisUtil.set("categoryList", categoryList);
        return categoryList;
    }
}