如何使用Springboot中的RedisUtils工具类

这篇文章将为大家详细讲解有关如何使用Springboot中的RedisUtils工具类，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。

SpringBoot整合Redis

引入Redis依赖

      org.springframework.boot     spring-boot-starter-data-redis

设置Redis的Template

RedisConfig.java

package cn.wideth.config;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.RedisSerializer;/** * 编写配置类，构造RedisTemplate * 这个springboot已经帮我们配了， * 但是默认object，我想改成string */@Configurationpublic class RedisConfig {    @Bean    public RedisTemplate redisTemplate(RedisConnectionFactory factory) {        RedisTemplate template = new RedisTemplate<>();        template.setConnectionFactory(factory);        // 设置key的序列化方式        template.setKeySerializer(RedisSerializer.string());        // 设置value的序列化方式        template.setValueSerializer(RedisSerializer.json());        // 设置hash的key的序列化方式        template.setHashKeySerializer(RedisSerializer.string());        // 设置hash的value的序列化方式        template.setHashValueSerializer(RedisSerializer.json());        template.afterPropertiesSet();        return template;    }}

设置Redis连接信息

redis操作5种常见的数据类型

Redis工具类

redisTemplate API

1.opsForValue -> String

2.opsForSet -> Set

3.opsForHash -> hash

4.opsForZset -> SortSet

5.opsForList -> list队列

代码

package cn.wideth.util.other;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.redis.core.*;import java.util.List;import java.util.Set;import java.util.concurrent.TimeUnit;public class RedisUtils {    @Autowired    private RedisTemplate redisTemplate;    private static double size = Math.pow(2, 32);    /**     * 写入缓存     * @param key     * @param offset 位 8Bit=1Byte     * @return     */    public boolean setBit(String key, long offset, boolean isShow) {        boolean result = false;        try {            ValueOperations operations = redisTemplate.opsForValue();            operations.setBit(key, offset, isShow);            result = true;        } catch (Exception e) {            e.printStackTrace();        }        return result;    }    /**     * 写入缓存     *     * @param key     * @param offset     * @return     */    public boolean getBit(String key, long offset) {        boolean result = false;        try {            ValueOperations operations = redisTemplate.opsForValue();            result = operations.getBit(key, offset);        } catch (Exception e) {            e.printStackTrace();        }        return result;    }    /**     * 写入缓存     *     * @param key     * @param value     * @return     */    public boolean set(final String key, Object value) {        boolean result = false;        try {            ValueOperations 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     * @param value     * @return     */    public boolean set(final String key, Object value, Long expireTime) {        boolean result = false;        try {            ValueOperations operations = redisTemplate.opsForValue();            operations.set(key, value);            redisTemplate.expire(key, expireTime, TimeUnit.SECONDS);            result = true;        } catch (Exception e) {            e.printStackTrace();        }        return result;    }    /**     * 批量删除对应的value     *     * @param keys     */    public void remove(final String... keys) {        for (String key : keys) {            remove(key);        }    }    /**     * 删除对应的value     *     * @param key     */    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     * @return     */    public boolean exists(final String key) {        return redisTemplate.hasKey(key);    }    /**     * 读取缓存     *     * @param key     * @return     */    public Object get(final String key) {        Object result = null;        ValueOperations operations = redisTemplate.opsForValue();        result = operations.get(key);        return result;    }    /**     * 哈希 添加     *     * @param key     * @param hashKey     * @param value     */    public void hmSet(String key, Object hashKey, Object value) {        HashOperations 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 hash = redisTemplate.opsForHash();        return hash.get(key, hashKey);    }    /**     * 列表添加     *     * @param k     * @param v     */    public void lPush(String k, Object v) {        ListOperations list = redisTemplate.opsForList();        list.rightPush(k, v);    }    /**     * 列表获取     *     * @param k     * @param l     * @param l1     * @return     */    public List