数据库公用方法添加

chenjiahe

2023-01-10 bcc2fa8323a61920c7d2a6139c38fc25b17baa7f

 src/main/java/com/hx/redis/RedisUtil.java

@@ -1,5 +1,6 @@
package com.hx.redis;

import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

@@ -23,6 +24,18 @@
    @Resource
    private RedisTemplate<String, Object> redisTemplate;

    /**
     * 切换数据库
     * @param dataNumber 数据库编号
     */
    public void setDataBase(int dataNumber) {
        LettuceConnectionFactory connectionFactory = (LettuceConnectionFactory) redisTemplate.getConnectionFactory();
        if (connectionFactory != null && dataNumber != connectionFactory.getDatabase()) {
            connectionFactory.setDatabase(dataNumber);
            this.redisTemplate.setConnectionFactory(connectionFactory);
            connectionFactory.resetConnection();
        }
    }

    /**
     * [判断key是否存在]