python导入导出redis数据的实现

目录 一.导出redis某个库的数据 使用python向Redis批量导入数据 二.导入redis某个库的数据

注:以String类型为例

一.导出redis某个库的数据

import redis
import json

file_path = "why.json"

redis_conn = redis.Redis(host="192.168.1.123", port=6387, password="123zxcv", db=2, decode_responses=True)
data_keys = redis_conn.keys()

all_data = {}
for i in data_keys:
? ? all_data[i] = json.loads(redis_conn.get(i))


file_object = open(file_path, 'w', encoding="utf8")
json.dump(all_data, file_object, ensure_ascii=False)

file_object.close()

使用python向Redis批量导入数据

使用pipeline进行批量导入数据。包含先使用rpush插入数据，然后使用expire改动过期时间

class Redis_Handler(Handler):
?? ?def connect(self):
?? ??? ?#print self.host,self.port,self.table
?? ??? ?self.conn = Connection(self.host,self.port,self.table)?? ?
?? ??? ?
?? ?def execute(self, action_name):
?? ??? ?filename = "/tmp/temp.txt"
?? ??? ?batch_size = 10000
?? ??? ?with open(filename) as file:
?? ??? ??? ?try:
?? ??? ??? ??? ?count = 0
?? ??? ??? ??? ?pipeline_redis = self.conn.client.pipeline()
?? ??? ??? ??? ?for lines in file:
?? ??? ??? ??? ??? ?(key,value) = lines.split(',')
?? ??? ??? ??? ??? ??? ?count = count + 1
?? ??? ??? ??? ??? ??? ?if len(key)>0:
?? ??? ??? ??? ??? ??? ??? ?pipeline_redis.rpush(key,value.strip())
?? ??? ??? ??? ??? ??? ??? ?if not count % batch_size:
?? ??? ??? ??? ??? ??? ??? ??? ?pipeline_redis.execute()
?? ??? ??? ??? ??? ??? ??? ??? ?count = 0
?? ??? ??? ?
?? ?
?? ??? ??? ??? ?#send the last batch
?? ??? ??? ??? ?pipeline_redis.execute()
?? ??? ??? ?except Exception:
?? ??? ??? ??? ?print 'redis add error'

二.导入redis某个库的数据

import redis
import json

file_path = "why.json"

redis_conn = redis.Redis(host="192.168.1.123", port=6387, password="123zxcv", db=1, decode_responses=True)

file_object = open(file_path, 'r', encoding="utf8")
all_data = json.load(file_object)

for key in all_data:
? ? redis_conn.set(key, json.dumps(all_data[key], ensure_ascii=False))

file_object.close()

到此这篇关于python导入导出redis数据的实现的文章就介绍到这了,更多相关python导入导出redis内容请搜索以前的文章或继续浏览下面的相关文章希望大家以后多多支持！

查看更多关于python导入导出redis数据的实现的详细内容...

声明：本文来自网络，不代表【好得很程序员自学网】立场，转载请注明出处：http://www.haodehen.cn/did99802