【Redis系列】Java使用Redis

<!-- Redis依赖 -->
<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>2.7.2</version>
</dependency>

/**
 * 连接Redis
 *
 * @return
 */
public static Jedis redisConn() {
    Jedis jedis = new Jedis("127.0.0.1");
    if (jedis != null) {
        jedis.auth("root");  //如redis没有设置密码, 则无需添加此行
        System.out.println("连接Redis成功");
    }
    return jedis;
}

/**
 * 插入Redis
 *
 * @param key
 * @param value
 */
public static void setRedis(String key, String value) {
    Jedis jedis = RRedisUtil.redisConn();
    jedis.set(key, value);
    System.out.println("set: " + jedis.get(key));
}

/**
 * 查询Redis
 *
 * @param key
 * @return
 */
public String getRedis(String key) {
    Jedis jedis = RRedisUtil.redisConn();
    String values = jedis.get(key);
    System.out.println("get key=" + key + " values=" + values);
    return values;
}

/**
 * 删除Redis
 *
 * @param key
 */
public static void delRedis(String key) {
    Jedis jedis = RRedisUtil.redisConn();
    jedis.del(key);
    System.out.println("del: " + key);
}

/**
 * 批量查询Redis
 *
 * @param patten
 * @return
 */
public static Set<String> keysRedis(String patten) {
    Jedis jedis = RRedisUtil.redisConn();
    Set<String> keys = jedis.keys(patten);
    System.out.printf("keys：" + String.valueOf(keys) + "\n");
    return keys;
}

/**
 * 验证
 */
public static void main(String[] args) {
    RRedisUtil redisUtil = new RRedisUtil();
    redisUtil.redisConn();
    redisUtil.setRedis(key, "小工具666");
    redisUtil.getRedis("testkey");
    redisUtil.delRedis(key);
    redisUtil.keysRedis("*");
}

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