{"id":78301,"date":"2026-02-26T23:43:16","date_gmt":"2026-02-26T15:43:16","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/78301.html"},"modified":"2026-02-26T23:43:16","modified_gmt":"2026-02-26T15:43:16","slug":"python-3-12-logging-15-fileconfig-json","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/78301.html","title":{"rendered":"Python 3.12 logging - 15 - fileConfig - JSON"},"content":{"rendered":"

Python 3.12.10 logging fileConfig – jsonFile \u914d\u7f6e\u8be6\u89e3<\/h2>\n

\u5728 Python \u7684 logging \u6a21\u5757\u4e2d，\u901a\u8fc7 JSON \u6587\u4ef6\u914d\u5408 dictConfig \u53ef\u4ee5\u7075\u6d3b\u5730\u914d\u7f6e\u65e5\u5fd7\u7cfb\u7edf，\u7279\u522b\u662f\u5229\u7528\u70b9\u53f7\u5206\u9694\u7684\u65e5\u5fd7\u5668\u540d\u79f0\u5b9e\u73b0\u7236\u5b50\u7ee7\u627f\u5173\u7cfb\u3002\u672c\u6587\u5c06\u63d0\u4f9b\u4e24\u4e2a\u5b8c\u6574\u7684 JSON \u914d\u7f6e\u793a\u4f8b，\u8be6\u7ec6\u89e3\u6790\u6bcf\u4e2a\u914d\u7f6e\u9879，\u5e76\u5c55\u793a\u7236\u5b50 Logger \u7684\u884c\u4e3a\u3002<\/p>\n

\n

Demo 1：\u57fa\u7840\u7236\u5b50 Logger \u914d\u7f6e<\/h3>\n

\u672c\u793a\u4f8b\u6f14\u793a\u4e00\u4e2a\u7236 Logger app \u548c\u4e00\u4e2a\u5b50 Logger app.sub\u3002\u7236 Logger \u8f93\u51fa\u5230\u63a7\u5236\u53f0，\u5b50 Logger \u8f93\u51fa\u5230\u6587\u4ef6，\u5e76\u89c2\u5bdf\u65e5\u5fd7\u4f20\u64ad\u3002<\/p>\n

1.1 JSON \u914d\u7f6e\u6587\u4ef6 demo1.json<\/h4>\n

{<\/span>
\n "version"<\/span>:<\/span> 1<\/span>,<\/span>
\n "disable_existing_loggers"<\/span>:<\/span> false<\/span>,<\/span>
\n "formatters"<\/span>:<\/span> {<\/span>
\n "simple"<\/span>:<\/span> {<\/span>
\n "format"<\/span>:<\/span> "%(asctime)s – %(name)s – %(levelname)s – %(message)s"<\/span>,<\/span>
\n "datefmt"<\/span>:<\/span> "%Y-%m-%d %H:%M:%S"<\/span>
\n }<\/span>
\n }<\/span>,<\/span>
\n "handlers"<\/span>:<\/span> {<\/span>
\n "console"<\/span>:<\/span> {<\/span>
\n "class"<\/span>:<\/span> "logging.StreamHandler"<\/span>,<\/span>
\n "level"<\/span>:<\/span> "DEBUG"<\/span>,<\/span>
\n "formatter"<\/span>:<\/span> "simple"<\/span>,<\/span>
\n "stream"<\/span>:<\/span> "ext:\/\/sys.stdout"<\/span>
\n }<\/span>,<\/span>
\n "file"<\/span>:<\/span> {<\/span>
\n "class"<\/span>:<\/span> "logging.FileHandler"<\/span>,<\/span>
\n "level"<\/span>:<\/span> "INFO"<\/span>,<\/span>
\n "formatter"<\/span>:<\/span> "simple"<\/span>,<\/span>
\n "filename"<\/span>:<\/span> "demo1.log"<\/span>,<\/span>
\n "encoding"<\/span>:<\/span> "utf8"<\/span>
\n }<\/span>
\n }<\/span>,<\/span>
\n "loggers"<\/span>:<\/span> {<\/span>
\n "app"<\/span>:<\/span> {<\/span>
\n "level"<\/span>:<\/span> "DEBUG"<\/span>,<\/span>
\n "handlers"<\/span>:<\/span> [<\/span>"console"<\/span>]<\/span>,<\/span>
\n "propagate"<\/span>:<\/span> true<\/span>
\n }<\/span>,<\/span>
\n "app.sub"<\/span>:<\/span> {<\/span>
\n "level"<\/span>:<\/span> "INFO"<\/span>,<\/span>
\n "handlers"<\/span>:<\/span> [<\/span>"file"<\/span>]<\/span>,<\/span>
\n "propagate"<\/span>:<\/span> true<\/span>
\n }<\/span>
\n }<\/span>,<\/span>
\n "root"<\/span>:<\/span> {<\/span>
\n "level"<\/span>:<\/span> "WARNING"<\/span>,<\/span>
\n "handlers"<\/span>:<\/span> [<\/span>"console"<\/span>]<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

1.2 Python \u4ee3\u7801 demo1.py<\/h4>\n

import<\/span> logging.<\/span>config
\nimport<\/span> json<\/p>\n

def<\/span> main<\/span>(<\/span>)<\/span>:<\/span>
\n with<\/span> open<\/span>(<\/span>'demo1.json'<\/span>,<\/span> 'r'<\/span>,<\/span> encoding=<\/span>'utf-8'<\/span>)<\/span> as<\/span> f:<\/span>
\n config =<\/span> json.<\/span>load(<\/span>f)<\/span>
\n logging.<\/span>config.<\/span>dictConfig(<\/span>config)<\/span><\/p>\n

parent =<\/span> logging.<\/span>getLogger(<\/span>'app'<\/span>)<\/span>
\n child =<\/span> logging.<\/span>getLogger(<\/span>'app.sub'<\/span>)<\/span><\/p>\n

print<\/span>(<\/span>"=== \u7236 Logger \u8bb0\u5f55 ==="<\/span>)<\/span>
\n parent.<\/span>debug(<\/span>"\u7236 DEBUG"<\/span>)<\/span>
\n parent.<\/span>info(<\/span>"\u7236 INFO"<\/span>)<\/span><\/p>\n

print<\/span>(<\/span>"\\\\n=== \u5b50 Logger \u8bb0\u5f55 ==="<\/span>)<\/span>
\n child.<\/span>debug(<\/span>"\u5b50 DEBUG (\u88ab\u5b50\u7ea7\u522b\u8fc7\u6ee4)"<\/span>)<\/span> # \u5b50\u7ea7\u522b INFO，\u6240\u4ee5\u4e0d\u8f93\u51fa<\/span>
\n child.<\/span>info(<\/span>"\u5b50 INFO"<\/span>)<\/span>
\n child.<\/span>warning(<\/span>"\u5b50 WARNING"<\/span>)<\/span><\/p>\n

if<\/span> __name__ ==<\/span> '__main__'<\/span>:<\/span>
\n main(<\/span>)<\/span><\/p>\n

1.3 \u8fd0\u884c\u7ed3\u679c\u4e0e\u5206\u6790<\/h4>\n

\u63a7\u5236\u53f0\u8f93\u51fa：<\/p>\n

\u4e0d\u6e05\u695a\u4e3a\u4ec0\u4e48\u8fd9\u6837\u7684\u8f93\u51fa\u5462，\u4ee5\u6211\u7684\u7406\u89e3，\u56e0\u4e3aRootLogger\u7684\u7ea7\u522b\u662fWARNING，\u6240\u4ee5\u4f20\u64ad\u5230Root\u65f6，\u4e0d\u5e94\u8be5\u8f93\u51faDEBUG\u548cINFO\u7684\u65e5\u5fd7，\u4e3a\u4ec0\u4e48\u8fd9\u6837\u5462，\u8fd9\u662f\u610f\u5916\u4f20\u64ad\u4e86\u5417？\u8fd9\u4e2a\u662flogging\u7684Bug\u5417？\u6b22\u8fce\u8bc4\u8bba\u4e00\u4e0b\u5440<\/h2>\n

=== \u7236 Logger \u8bb0\u5f55 ===
\n2026-02-26 xx:xx:xx – app – DEBUG – \u7236 DEBUG
\n2026-02-26 xx:xx:xx – app – DEBUG – \u7236 DEBUG
\n2026-02-26 xx:xx:xx – app – INFO – \u7236 INFO
\n2026-02-26 xx:xx:xx – app – INFO – \u7236 INFO<\/p>\n

=== \u5b50 Logger \u8bb0\u5f55 ===
\n2026-02-26 xx:xx:xx – app.sub – INFO – \u5b50 INFO
\n2026-02-26 xx:xx:xx – app.sub – INFO – \u5b50 INFO
\n2026-02-26 xx:xx:xx – app.sub – WARNING – \u5b50 WARNING
\n2026-02-26 xx:xx:xx – app.sub – WARNING – \u5b50 WARNING<\/p>\n

\u6587\u4ef6 demo1.log \u5185\u5bb9：<\/p>\n

2025-02-26 xx:xx:xx – app.sub – INFO – \u5b50 INFO
\n2025-02-26 xx:xx:xx – app.sub – WARNING – \u5b50 WARNING<\/p>\n

\u5206\u6790：<\/p>\n