pythonredispubsub:当类型被发布时会发生什么?
酒吧 输出:pythonredispubsub:当类型被发布时会发生什么?,python,redis,redis-py,Python,Redis,Redis Py,酒吧 输出: import redis import datetime import time def main(): redis_host = '10.235.13.29' r = redis.client.StrictRedis(host=redis_host, port=6379) while True: now = datetime.datetime.now() print 'Sending {0}
import redis
import datetime
import time
def main():
redis_host = '10.235.13.29'
r = redis.client.StrictRedis(host=redis_host, port=6379)
while True:
now = datetime.datetime.now()
print 'Sending {0}'.format(now)
print 'data type is %s' % type(now)
r.publish('clock', now)
time.sleep(1)
if __name__ == '__main__':
main()
import redis
import threading
import time
import datetime
def callback():
redis_host = '10.235.13.29'
r = redis.client.StrictRedis(host=redis_host, port=6379)
sub = r.pubsub()
sub.subscribe('clock')
while True:
for m in sub.listen():
#print m #'Recieved: {0}'.format(m['data'])
now = datetime.datetime.now()
print 'Recieved: %s at %s' % (m['data'], now)
print 'Data type is %s' % type(m['data'])
dur = 1
print 'It took %s to receive' % dur
def main():
t = threading.Thread(target=callback)
t.setDaemon(True)
t.start()
while True:
print 'Waiting'
time.sleep(30)
if __name__ == '__main__':
main()
输出:
import redis
import datetime
import time
def main():
redis_host = '10.235.13.29'
r = redis.client.StrictRedis(host=redis_host, port=6379)
while True:
now = datetime.datetime.now()
print 'Sending {0}'.format(now)
print 'data type is %s' % type(now)
r.publish('clock', now)
time.sleep(1)
if __name__ == '__main__':
main()
import redis
import threading
import time
import datetime
def callback():
redis_host = '10.235.13.29'
r = redis.client.StrictRedis(host=redis_host, port=6379)
sub = r.pubsub()
sub.subscribe('clock')
while True:
for m in sub.listen():
#print m #'Recieved: {0}'.format(m['data'])
now = datetime.datetime.now()
print 'Recieved: %s at %s' % (m['data'], now)
print 'Data type is %s' % type(m['data'])
dur = 1
print 'It took %s to receive' % dur
def main():
t = threading.Thread(target=callback)
t.setDaemon(True)
t.start()
while True:
print 'Waiting'
time.sleep(30)
if __name__ == '__main__':
main()
{}:./sub.py
等待
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收到日期:2014-10-08 13:09:49.675912于2014-10-08 13:09:49.677346
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类型从datetime.datetime更改为str是否可以保留该类型,因为我正在尝试查找无法将datetime obj减去str的持续时间 见 我认为您必须序列化已发布通道中的datetime对象,然后在读取sub时反序列化 我注意到您已经对解决方案发表了评论:)
编辑: 您可以在密钥中存储epoch秒,避免序列化!(如果只发布日期时间)