利用python收发MQ

古城微笑少年丶 2021-07-26 19:06 431阅读 0赞

一、收发MQ基础

引入stomp包，

# -*- coding: utf-8 -*-
    import stomp
    import time,random
    from cmd.util import timePaser
    
    port = 700
    
    
    
    ip='10.13.69.16'
    passcode='8JiPUndN'
    queue_name = '/topic/SampleQueue'
    topic_name = '/topic/cweb.topic.receive.msg'
    
    listener_name = 'SampleListener'
    class SampleListener(object):
        def on_message(self, headers, message):
            print ('headers: %s' % headers)
            print ('message: %s' % message)
    
    # 推送到队列queue
    def send_to_queue(msg):
        conn = stomp.Connection10([(ip, port)])
        conn.start()
        conn.connect()
        conn.send(queue_name, msg)
        conn.disconnect()
    
    # 推送到主题
    def send_to_topic(msg):
        headers = {'type': 'bytesMessage'}
        conn = stomp.Connection([(ip, port)])
        conn.start()
        conn.connect(username='admin', passcode=passcode, wait=True, )
        conn.send(destination=topic_name, body=msg, headers=headers) # 发送消息
        # print ("$$$ send one message")
        conn.disconnect()
    ##从队列接收消息
    def receive_from_queue():
        conn = stomp.Connection10([(ip, port)])
        conn.set_listener(listener_name, SampleListener())
        conn.start()
        conn.connect()
        conn.subscribe(queue_name)
        time.sleep(1)  # secs
        conn.disconnect()
    
    ##从主题接收消息
    def receive_from_topic():
        conn = stomp.Connection([(ip, port)])
        conn.set_listener(listener_name, SampleListener())
        conn.start()
        conn.connect(username='admin', passcode=passcode, wait=True, headers={'tcpNoDelay': 'true'})
        conn.subscribe(topic_name,id="", ack='auto')
        while 1:
            # send_to_topic('topic')
            time.sleep(3)  # secs
        conn.disconnect()

二、构造随机报文

def sendTodoRand():
        for i in range(1,3):
            randomId=str(random.randrange(1000,9999));msgId=randomId+str(time.time())
    
            msg = '''{"msgId":"''' \
                  +msgId+ '''","msgStatus":"'''+str(random.randrange(1,4))+'''","msgTitle":"待办事项标题'''\
                  +randomId+'''","msgTime":"'''+timePaser.nowTime()+'''","extendStr":{"showFlag":1,"picUrl":"","extendJson":"{\\\"extend1\\\":\\\"人数：100\\\"}","extendNoShow":""}}]}}
                '''
            print(msgId);print(msg)
            send_to_topic(msg)