Redis与Python的交互

Posted 2020-10-16 胡说八道

# 1.通过python对Redis数据进行增删改查，获取键
1.增
    from redis import *


    if __name__ == "__main__":
        try:
            # 创建StrictRedis对象，与redis服务器建立链接
            sr = StrictRedis()
            # 添加键py1，值为gj
            result = sr.set(‘py1‘, ‘gj‘)
            # 输出响应结果，如果添加成功则返回True，否则返回false
            print(result)
        except Exception as e:
            print(e)
2.删
    from redis import *


    if __name__ == "__main__":
        try:
            # 创建StrictRedis对象，与redis服务器建立链接
            sr = StrictRedis()
            # 设置键py1的值，如果键已经存在则进行修改，如果键不存在则进行添加
            result = sr.delete(‘py1‘)
            # 输出相应结果，如果删除成功则返回受影响的键数，否则则返回0
            print(result)
        except Exception as e:
            print(e)
3.改
    from redis import *


    if __name__ == "__main__":
        try:
            # 创建StrictRedis对象，与redis服务器建立链接
            sr = StrictRedis()
            # 设置py1的值，如果键已经存在则进行修改，如果键不存在则进行添加
            result = sr.set(‘py1‘, ‘hr‘)
            # 输出相应结果，如果操作成功则返回True，否则返回False
            print(result)
        except Exception as e:
            print(e)
4.查
    from redis import *


    if __name__ == "__main__":
        try:
            # 创建StrictRedis对象，与redis服务器建立链接
            sr = StrictRedis()
            # 获取键py1的值
            result = sr.get(‘py1‘)
            # 输出键的值，如果键不存在则返回None
            print(result)
        except Exception as e:
            print(e)
5.获取键
    from redis import *


    if __name__ == "__main__":
        try:
            # 创建StrictRedis对象，与redis服务器建立链接
            sr = StrictRedis()
            # 获取所有的键
            result = sr.keys()
            # 输出响应结果，所有的键构成一个列表，如果没有键分返回空列表
            print(result)
        except Exception as e:
            print(e)
# 2.不同类型对应的实例方法
    --string:set setex mset append get mget
    --key:keys exists type delete expire getrange ttl
    --hash:hset hmset hkeys hget hmget hvals hdel
    --list:lpush rpush linsert lrange lset lrem
    --set:sadd smembers srem
    --zset:zadd zrange zrangebyscore zscore zrem zremrangebyscore