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()
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