Question

我正在创建记录器文件。现在我需要根据日期创建记录器文件。我的下面的代码只创建一个日志文件。但我需要创建一个新的日志文件date wise.am不知道如何每天创建日志文件。

使用以下代码创建日志文件。

  import logging
  from logging.handlers import RotatingFileHandler
  from flask import Flask, request, jsonify
  from time import strftime
  import traceback

  app = Flask(__name__)

  @app.route("/")
  def get_index():
      return "Welcome to Flask! "

  @app.route("/data")
  def get_hello():
    data = {
        "Name":"Ivan Leon",
        "Occupation":"Software Developer",
        "Technologies":"[Python, Flask, MySQL, Android]"
    }
    return jsonify(data)

  @app.route("/error")
  def get_json():
    return non_existent_variable # ---> intentional <---


 @app.after_request
 def after_request(response):
   # this if avoids the duplication of registry in the log,
   # since that 500 is already logged via @app.errorhandler
   if response.status_code != 500:
      ts = strftime('[%Y-%b-%d %H:%M]')
      logger.error('%s %s %s %s %s %s',
              ts,
              request.remote_addr,
              request.method,
              request.scheme,
              request.full_path,
              response.status)
   return response

@app.errorhandler(Exception)
def exceptions(e):
   ts = strftime('[%Y-%b-%d %H:%M]')
   tb = traceback.format_exc()
   logger.error('%s %s %s %s %s 5xx INTERNAL SERVER ERROR\n%s',
              ts, 
              request.remote_addr, 
              request.method,
              request.scheme, 
              request.full_path, 
              tb)
   return "Internal Server Error", 500

 if __name__ == '__main__':
   handler = RotatingFileHandler('app.log', maxBytes=100000, backupCount=3)
   logger = logging.getLogger('__name__')
   logger.setLevel(logging.INFO)
   logger.addHandler(handler)
   app.run()

Answer 1

每次运行代码时动态创建日志文件名。像

这样的事情

import datetime
now = datetime.datetime.now()
file_name = "app_" + str(now) + ".log"

然后在代码中使用此文件名而不是“app.log”。这将在每次代码运行时创建一个日志。如果您希望它仅为每天创建日志，则可以使用。

now = datetime.date.today()

我希望它有所帮助！

Answer 2

试试这个：

import logging
import logging.handlers

def get_logger(filename='', name=''):
    log_file_name = filename
    logging_level = logging.DEBUG
    # set TimedRotatingFileHandler for root
    formatter = logging.Formatter('%(asctime)s %(name)s %(levelname)s %(message)s')
    # use very short interval for this example, typically 'when' would be 'midnight' and no explicit interval
    handler = logging.handlers.TimedRotatingFileHandler(log_file_name, when='midnight', backupCount=10)
    handler.suffix = "%Y-%m-%d"

    handler.setFormatter(formatter)
    logger = logging.getLogger(name)  # or pass string to give it a name
    logger.addHandler(handler)
    logger.setLevel(logging_level)
    return logger

然后，您可以在任何需要记录的地方调用此方法。

我如何日期创建日志文件？

2 个答案: