![\"python\u5982\u4f55\u505a\u65e5\u5fd7\u7a0b\u5e8f\"](\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25111816\/d39afeb4-c0a3-418f-9e1c-721c2a6af40a.webp\")
<\/p>\n<\/p>\n
\u8981\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u65e5\u5fd7\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528Python\u6807\u51c6\u5e93\u4e2d\u7684 <\/code><\/pre>\n<\/p>\n \u4f7f\u7528 logging.basicConfig(level=logging.DEBUG, <\/p>\n format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', <\/p>\n datefmt='%Y-%m-%d %H:%M:%S',<\/p>\n handlers=[logging.FileHandler("app.log"), logging.StreamHandler()])<\/p>\n logging.debug('This is a debug message')<\/p>\n logging.info('This is an info message')<\/p>\n logging.warning('This is a warning message')<\/p>\n logging.error('This is an error message')<\/p>\n logging.critical('This is a critical message')<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86 \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u4f1a\u4e3a\u6bcf\u4e2a\u6a21\u5757\u6216\u7c7b\u521b\u5efa\u4e00\u4e2a\u5355\u72ec\u7684\u65e5\u5fd7\u5668\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7ba1\u7406\u65e5\u5fd7\u3002\u53ef\u4ee5\u4f7f\u7528 logger = logging.getLogger(__name__)<\/p>\n logger.setLevel(logging.DEBUG)<\/p>\n console_handler = logging.StreamHandler()<\/p>\n console_handler.setLevel(logging.DEBUG)<\/p>\n file_handler = logging.FileHandler('app.log')<\/p>\n file_handler.setLevel(logging.DEBUG)<\/p>\n formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')<\/p>\n console_handler.setFormatter(formatter)<\/p>\n file_handler.setFormatter(formatter)<\/p>\n logger.addHandler(console_handler)<\/p>\n logger.addHandler(file_handler)<\/p>\n logger.debug('This is a debug message')<\/p>\n logger.info('This is an info message')<\/p>\n logger.warning('This is a warning message')<\/p>\n logger.error('This is an error message')<\/p>\n logger.critical('This is a critical message')<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\uff1a<\/p>\n<\/p>\n \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u66f4\u590d\u6742\u7684\u65e5\u5fd7\u914d\u7f6e\uff0c\u4f8b\u5982\u4e3a\u4e0d\u540c\u6a21\u5757\u8bbe\u7f6e\u4e0d\u540c\u7684\u65e5\u5fd7\u7ea7\u522b\uff0c\u4e3a\u4e0d\u540c\u7684\u5904\u7406\u5668\u8bbe\u7f6e\u4e0d\u540c\u7684\u683c\u5f0f\u7b49\u3002\u53ef\u4ee5\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\u6216\u5b57\u5178\u8fdb\u884c\u914d\u7f6e\u3002<\/p>\n<\/p>\n \u53ef\u4ee5\u5c06\u65e5\u5fd7\u914d\u7f6e\u5199\u5165\u914d\u7f6e\u6587\u4ef6\uff0c\u5e76\u5728\u4ee3\u7801\u4e2d\u52a0\u8f7d\u914d\u7f6e\u6587\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n [loggers]<\/p>\n keys=root,sampleLogger<\/p>\n [handlers]<\/p>\n keys=consoleHandler,fileHandler<\/p>\n [formatters]<\/p>\n keys=sampleFormatter<\/p>\n [logger_root]<\/p>\n level=DEBUG<\/p>\n handlers=consoleHandler<\/p>\n [logger_sampleLogger]<\/p>\n level=DEBUG<\/p>\n handlers=consoleHandler,fileHandler<\/p>\n qualname=sampleLogger<\/p>\n propagate=0<\/p>\n [handler_consoleHandler]<\/p>\n class=StreamHandler<\/p>\n level=DEBUG<\/p>\n formatter=sampleFormatter<\/p>\n args=(sys.stdout,)<\/p>\n [handler_fileHandler]<\/p>\n class=FileHandler<\/p>\n level=DEBUG<\/p>\n formatter=sampleFormatter<\/p>\n args=('app.log', 'a')<\/p>\n [formatter_sampleFormatter]<\/p>\n format=%(asctime)s - %(name)s - %(levelname)s - %(message)s<\/p>\n datefmt=%Y-%m-%d %H:%M:%S<\/p>\n <\/code><\/pre>\n<\/p>\n \u7136\u540e\u5728\u4ee3\u7801\u4e2d\u52a0\u8f7d\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<\/p>\n import logging.config<\/p>\n logging.config.fileConfig('logging.conf')<\/p>\n logger = logging.getLogger('sampleLogger')<\/p>\n logger.debug('This is a debug message')<\/p>\n logger.info('This is an info message')<\/p>\n logger.warning('This is a warning message')<\/p>\n logger.error('This is an error message')<\/p>\n logger.critical('This is a critical message')<\/p>\n <\/code><\/pre>\n<\/p>\n \u4e5f\u53ef\u4ee5\u4f7f\u7528\u5b57\u5178\u914d\u7f6e\u65e5\u5fd7\u7cfb\u7edf\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n import logging.config<\/p>\n log_config = {<\/p>\n 'version': 1,<\/p>\n 'disable_existing_loggers': False,<\/p>\n 'formatters': {<\/p>\n 'default': {<\/p>\n 'format': '%(asctime)s - %(name)s - %(levelname)s - %(message)s',<\/p>\n 'datefmt': '%Y-%m-%d %H:%M:%S',<\/p>\n },<\/p>\n },<\/p>\n 'handlers': {<\/p>\n 'console': {<\/p>\n 'class': 'logging.StreamHandler',<\/p>\n 'level': 'DEBUG',<\/p>\n 'formatter': 'default',<\/p>\n },<\/p>\n 'file': {<\/p>\n 'class': 'logging.FileHandler',<\/p>\n 'level': 'DEBUG',<\/p>\n 'formatter': 'default',<\/p>\n 'filename': 'app.log',<\/p>\n },<\/p>\n },<\/p>\n 'loggers': {<\/p>\n '': {<\/p>\n 'level': 'DEBUG',<\/p>\n 'handlers': ['console', 'file'],<\/p>\n },<\/p>\n },<\/p>\n }<\/p>\n logging.config.dictConfig(log_config)<\/p>\n logger = logging.getLogger(__name__)<\/p>\n logger.debug('This is a debug message')<\/p>\n logger.info('This is an info message')<\/p>\n logger.warning('This is a warning message')<\/p>\n logger.error('This is an error message')<\/p>\n logger.critical('This is a critical message')<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u6355\u83b7\u548c\u8bb0\u5f55\u5f02\u5e38\u4fe1\u606f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528 logger = logging.getLogger(__name__)<\/p>\n try:<\/p>\n 1 \/ 0<\/p>\n except ZeroDivisionError:<\/p>\n logger.exception('An exception occurred')<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728\u591a\u8fdb\u7a0b\u548c\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\uff0c\u65e5\u5fd7\u7684\u5904\u7406\u7a0d\u5fae\u590d\u6742\u4e00\u4e9b\u3002\u53ef\u4ee5\u4f7f\u7528 \u5728\u591a\u8fdb\u7a0b\u73af\u5883\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 import logging.handlers<\/p>\n import multiprocessing<\/p>\n def logger_process(queue):<\/p>\n root = logging.getLogger()<\/p>\n h = logging.handlers.QueueHandler(queue)<\/p>\n root.addHandler(h)<\/p>\n root.setLevel(logging.DEBUG)<\/p>\n listener = logging.handlers.QueueListener(queue, *root.handlers)<\/p>\n listener.start()<\/p>\n try:<\/p>\n logger = logging.getLogger('logger_process')<\/p>\n logger.info('Logger process started')<\/p>\n while True:<\/p>\n pass<\/p>\n finally:<\/p>\n listener.stop()<\/p>\n def worker_process(queue, worker_id):<\/p>\n h = logging.handlers.QueueHandler(queue)<\/p>\n root = logging.getLogger()<\/p>\n root.addHandler(h)<\/p>\n root.setLevel(logging.DEBUG)<\/p>\n logger = logging.getLogger(f'worker_{worker_id}')<\/p>\n logger.info(f'Worker {worker_id} started')<\/p>\nlogging<\/code>\u6a21\u5757\u3002Python\u7684logging<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u8bb0\u5f55\u65e5\u5fd7\u7684\u529f\u80fd\u3001\u53ef\u4ee5\u65b9\u4fbf\u5730\u8bb0\u5f55\u4e0d\u540c\u7ea7\u522b\u7684\u65e5\u5fd7\u3001\u53ef\u4ee5\u914d\u7f6e\u65e5\u5fd7\u8f93\u51fa\u7684\u683c\u5f0f\u548c\u76ee\u6807<\/strong>\u3002\u4e0b\u9762\u6211\u4eec\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528logging<\/code>\u6a21\u5757\u6765\u521b\u5efa\u4e00\u4e2a\u529f\u80fd\u5b8c\u5584\u7684\u65e5\u5fd7\u7a0b\u5e8f\u3002<\/p>\n<\/p>\n\u4e00\u3001\u5b89\u88c5\u548c\u5bfc\u5165logging\u6a21\u5757<\/h3>\n<\/p>\n
logging<\/code>\u6a21\u5757\u662fPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u56e0\u6b64\u65e0\u9700\u989d\u5916\u5b89\u88c5\u3002\u53ea\u9700\u5728\u4ee3\u7801\u4e2d\u5bfc\u5165\u5373\u53ef\uff1a<\/p>\n<\/p>\nimport logging<\/p>\n\u4e8c\u3001\u57fa\u672c\u914d\u7f6e<\/h3>\n<\/p>\n
logging<\/code>\u6a21\u5757\u8bb0\u5f55\u65e5\u5fd7\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u662f\u4f7f\u7528basicConfig<\/code>\u51fd\u6570\u6765\u914d\u7f6e\u65e5\u5fd7\u7cfb\u7edf\u3002\u8fd9\u5305\u62ec\u8bbe\u7f6e\u65e5\u5fd7\u7ea7\u522b\u3001\u65e5\u5fd7\u683c\u5f0f\u548c\u65e5\u5fd7\u8f93\u51fa\u76ee\u6807\u7b49\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\nimport logging<\/p>\nbasicConfig<\/code>\u51fd\u6570\u6765\u8bbe\u7f6e\u65e5\u5fd7\u8bb0\u5f55\u7684\u914d\u7f6e\uff1a<\/p>\n<\/p>\n\n
level<\/code>\u53c2\u6570\u8bbe\u7f6e\u65e5\u5fd7\u7ea7\u522b\u4e3aDEBUG<\/code>\uff0c\u8868\u793a\u8bb0\u5f55\u6240\u6709\u7ea7\u522b\u7684\u65e5\u5fd7\u4fe1\u606f\u3002<\/li>\nformat<\/code>\u53c2\u6570\u8bbe\u7f6e\u65e5\u5fd7\u7684\u8f93\u51fa\u683c\u5f0f\uff0c\u5305\u62ec\u65f6\u95f4\u3001\u65e5\u5fd7\u5668\u540d\u79f0\u3001\u65e5\u5fd7\u7ea7\u522b\u548c\u65e5\u5fd7\u6d88\u606f\u3002<\/li>\ndatefmt<\/code>\u53c2\u6570\u8bbe\u7f6e\u65f6\u95f4\u683c\u5f0f\u3002<\/li>\nhandlers<\/code>\u53c2\u6570\u8bbe\u7f6e\u65e5\u5fd7\u8f93\u51fa\u76ee\u6807\uff0c\u5305\u62ec\u6587\u4ef6\u548c\u63a7\u5236\u53f0\u3002<\/li>\n<\/ul>\n\u4e09\u3001\u65e5\u5fd7\u7ea7\u522b<\/h3>\n<\/p>\n
logging<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u591a\u4e2a\u65e5\u5fd7\u7ea7\u522b\uff0c\u7528\u4e8e\u8868\u793a\u65e5\u5fd7\u7684\u4e25\u91cd\u7a0b\u5ea6\u3002\u65e5\u5fd7\u7ea7\u522b\u4ece\u4f4e\u5230\u9ad8\u4f9d\u6b21\u4e3a\uff1a<\/p>\n<\/p>\n\n
DEBUG<\/code>\uff1a\u8be6\u7ec6\u7684\u4fe1\u606f\uff0c\u901a\u5e38\u53ea\u5728\u8bca\u65ad\u95ee\u9898\u65f6\u4f7f\u7528\u3002<\/li>\nINFO<\/code>\uff1a\u786e\u8ba4\u7a0b\u5e8f\u6309\u9884\u671f\u5de5\u4f5c\u7684\u4fe1\u606f\u3002<\/li>\nWARNING<\/code>\uff1a\u8868\u793a\u53ef\u80fd\u51fa\u73b0\u95ee\u9898\u7684\u8b66\u544a\u4fe1\u606f\u3002<\/li>\nERROR<\/code>\uff1a\u7531\u4e8e\u66f4\u4e25\u91cd\u7684\u95ee\u9898\uff0c\u7a0b\u5e8f\u5df2\u4e0d\u80fd\u6267\u884c\u67d0\u4e9b\u529f\u80fd\u3002<\/li>\nCRITICAL<\/code>\uff1a\u4e25\u91cd\u9519\u8bef\uff0c\u8868\u793a\u7a0b\u5e8f\u53ef\u80fd\u65e0\u6cd5\u7ee7\u7eed\u8fd0\u884c\u3002<\/li>\n<\/ul>\n\u56db\u3001\u521b\u5efa\u65e5\u5fd7\u5668<\/h3>\n<\/p>\n
logging.getLogger<\/code>\u51fd\u6570\u521b\u5efa\u65e5\u5fd7\u5668\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\nimport logging<\/p>\n\u521b\u5efa\u63a7\u5236\u53f0\u5904\u7406\u5668<\/strong><\/h2>\n
\u521b\u5efa\u6587\u4ef6\u5904\u7406\u5668<\/strong><\/h2>\n
\u521b\u5efa\u683c\u5f0f\u5668\u5e76\u5c06\u5176\u6dfb\u52a0\u5230\u5904\u7406\u5668<\/strong><\/h2>\n
\u5c06\u5904\u7406\u5668\u6dfb\u52a0\u5230\u65e5\u5fd7\u5668<\/strong><\/h2>\n
\n
logging.getLogger<\/code>\u51fd\u6570\u521b\u5efa\u4e86\u4e00\u4e2a\u65e5\u5fd7\u5668\u5bf9\u8c61\u3002<\/li>\n\u4e94\u3001\u65e5\u5fd7\u7684\u9ad8\u7ea7\u914d\u7f6e<\/h3>\n<\/p>\n
1\u3001\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6<\/h4>\n<\/p>\n
# logging.conf<\/p>\nimport logging<\/p>\n2\u3001\u4f7f\u7528\u5b57\u5178\u914d\u7f6e<\/h4>\n<\/p>\n
import logging<\/p>\n\u516d\u3001\u6355\u83b7\u5f02\u5e38\u65e5\u5fd7<\/h3>\n<\/p>\n
logging<\/code>\u6a21\u5757\u7684exception<\/code>\u65b9\u6cd5\u8bb0\u5f55\u5f02\u5e38\u4fe1\u606f\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\nimport logging<\/p>\nlogger.exception<\/code>\u65b9\u6cd5\u4f1a\u81ea\u52a8\u8bb0\u5f55\u5f02\u5e38\u7684\u5806\u6808\u4fe1\u606f\uff0c\u975e\u5e38\u9002\u5408\u5728\u6355\u83b7\u5f02\u5e38\u65f6\u4f7f\u7528\u3002<\/p>\n<\/p>\n\u4e03\u3001\u591a\u8fdb\u7a0b\u548c\u591a\u7ebf\u7a0b\u65e5\u5fd7<\/h3>\n<\/p>\n
logging<\/code>\u6a21\u5757\u7684QueueHandler<\/code>\u548cQueueListener<\/code>\u6765\u5904\u7406\u591a\u8fdb\u7a0b\u548c\u591a\u7ebf\u7a0b\u65e5\u5fd7\u3002<\/p>\n<\/p>\n1\u3001\u591a\u8fdb\u7a0b\u65e5\u5fd7<\/h4>\n<\/p>\n
QueueHandler<\/code>\u548cQueueListener<\/code>\u6765\u5b89\u5168\u5730\u8bb0\u5f55\u65e5\u5fd7\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\nimport logging<\/p>\n