python websocket 客户端连接

# -*- coding: utf-8 -*-
import json
import websocket
import _thread as thread

# try:
# import thread
# except ImportError:
# import _thread as thread

def on_message(self, message):   # 第一个参数必须传递
  print(message)

def on_error(self, error):
  print(error)

def on_close(self):
  print("### closed ###")

def on_open(self):
  def run():
    for i in range(3):  # 可以死循环发送
      ws.send(json.dumps({1: "123123"}))
    # ws.close()  # 发送完毕, 可以不关闭

  thread.start_new_thread(run, ())  # 启动线程执行run()函数发送数据

if __name__ == "__main__":

  while True:
    try:
      websocket.enableTrace(True)  # True 默认在控制台打印连接和信息发送接收情况
      ws = websocket.WebSocketApp("ws://192.168.130.164:8765/api/v1/data/",
        on_open=on_open,  # 连接后自动调用发送函数, 
        on_message=on_message,  # 接收消息调用
        on_error=on_error,
        on_close=on_close)
      ws.run_forever()  # 开启长连接

    # except KeyboardInterrupt: # 会被ws内部捕捉
      # print(123)
      # break
    except Exception as e: # ws 断开 或者psycopg2.OperationalError
      logger.warning("ws 断开 或者psycopg2.OperationalError, {}: {}".format(type(e), e))
      continue

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