主題+QueueEndpoint使用手冊__Python SDK_SDK使用手冊_消息服務-阿裏雲

• 運行

$python subscribe_queueendpoint.py cn-hangzhou MyQueue1 MyTopic1 MyTopic1-Sub1
Create Subscription Succeed! TopicName:MyTopic1 SubName:MyTopic1-Sub1 Endpoint:acs:mns:cn-hangzhou:127797386164059:queues/MyQueue1

• 核心代碼

endpoint，accid，acckey和token從第1步的配置文件中讀取；

region = sys.argv[1]
queue_name = sys.argv[2]
queue_endpoint = TopicHelper.generate_queue_endpoint(region, account_id, queue_name)
#init my_account, my_topic, my_sub
my_account = Account(endpoint, accid, acckey, token)
topic_name = sys.argv[3] if len(sys.argv) > 3 else "MySampleTopic"
my_topic = my_account.get_topic(topic_name)
sub_name = sys.argv[4] if len(sys.argv) > 4 else "MySampleTopic-Sub"
my_sub = my_topic.get_subscription(sub_name)
#you can get more information of SubscriptionMeta from mns/subscription.py
sub_meta = SubscriptionMeta(queue_endpoint, notify_content_format = SubscriptionNotifyContentFormat.SIMPLIFIED)
try:
    topic_url = my_sub.subscribe(sub_meta)
    print "Create Subscription Succeed! TopicName:%s SubName:%s Endpoint:%sn" % (topic_name, sub_name, queue_endpoint)
except MNSExceptionBase, e:
    if e.type == "TopicNotExist":
        print "Topic not exist, please create topic."
        sys.exit(0)
    elif e.type == "SubscriptionAlreadyExist":
        print "Subscription already exist, please unsubscribe or use it directly."
        sys.exit(0)
    print "Create Subscription Fail! Exception:%sn" % e

5. 發布消息

運行publishmessage.py 發布多條消息到主題中；
如果第2步中指定了主題名稱，這裏同樣通過第一個參數指定主題名稱；
消息詳細信息請參考詳情;

$python publishmessage.py MyTopic1
==========Publish Message To Topic==========
TopicName:MyTopic1
MessageCount:3
Publish Message Succeed. MessageBody:I am test message 0. MessageID:F6EA56633844DBFC-1-154BDFB8059-200000004
Publish Message Succeed. MessageBody:I am test message 1. MessageID:F6EA56633844DBFC-1-154BDFB805F-200000005
Publish Message Succeed. MessageBody:I am test message 2. MessageID:F6EA56633844DBFC-1-154BDFB8062-200000006

#init my_account, my_topic
my_account = Account(endpoint, accid, acckey, token)
topic_name = sys.argv[1] if len(sys.argv) > 1 else "MySampleTopic"
my_topic = my_account.get_topic(topic_name)
#publish some messages
msg_count = 3
print "%sPublish Message To Topic%snTopicName:%snMessageCount:%sn" % (10*"=", 10*"=", topic_name, msg_count)
for i in range(msg_count):
    try:
        msg_body = "I am test message %s." % i
        msg = TopicMessage(msg_body)
        re_msg = my_topic.publish_message(msg)
        print "Publish Message Succeed. MessageBody:%s MessageID:%s" % (msg_body, re_msg.message_id)
    except MNSExceptionBase,e:
        if e.type == "TopicNotExist":
            print "Topic not exist, please create it."
            sys.exit(1)
        print "Publish Message Fail. Exception:%s" % e

$python recvdelmessage.py MyQueue1 false
==========Receive And Delete Message From Queue==========
QueueName:MyQueue1
WaitSeconds:3
Receive Message Succeed! ReceiptHandle:1-ODU4OTkzNDU5My0xNDczMzkwMjkyLTEtOA== MessageBody:I am test message 0. MessageID:E56AE055BAA638AC-1-1570CE43AD3-200000001
Delete Message Succeed!  ReceiptHandle:1-ODU4OTkzNDU5My0xNDczMzkwMjkyLTEtOA==
Receive Message Succeed! ReceiptHandle:1-ODU4OTkzNDU5NC0xNDczMzkwMjkyLTEtOA== MessageBody:I am test message 1. MessageID:E56AE055BAA638AC-1-1570CE43AE0-200000002
Delete Message Succeed!  ReceiptHandle:1-ODU4OTkzNDU5NC0xNDczMzkwMjkyLTEtOA==
Receive Message Succeed! ReceiptHandle:1-ODU4OTkzNDU5My0xNDczMzkwMjkyLTItOA== MessageBody:I am test message 2. MessageID:CDAC88D223C0F9E3-2-1570CE43B2E-200000001
Delete Message Succeed!  ReceiptHandle:1-ODU4OTkzNDU5My0xNDczMzkwMjkyLTItOA==
Queue is empty!

$python deletetopic.py MyTopic1
Delete Topic Succeed! TopicName:MyTopic1

#init my_account, my_topic
my_account = Account(endpoint, accid, acckey, token)
topic_name = sys.argv[1] if len(sys.argv) > 1 else "MySampleTopic"
my_topic = my_account.get_topic(topic_name)
try:
    my_topic.delete()
    print "Delete Topic Succeed! TopicName:%sn" % topic_name
except MNSExceptionBase, e:
    print "Delete Topic Fail! Exception:%sn" % e

$python deletequeue.py MyQueue1
Delete Queue Succeed! QueueName:MyQueue1

#init my_account, my_queue
my_account = Account(endpoint, accid, acckey, token)
queue_name = sys.argv[1] if len(sys.argv) > 1 else "MySampleQueue"
my_queue = my_account.get_queue(queue_name)
#delete queue
try:
    my_queue.delete()
    print "Delete Queue Succeed! QueueName:%sn" % queue_name
except MNSExceptionBase, e:
    print "Delete Queue Fail! Exception:%sn" % e