{"id":127041,"date":"2024-03-25T00:52:57","date_gmt":"2024-03-24T15:52:57","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/log4j2-%e3%82%92%e5%ae%8c%e5%85%a8%e3%81%ab%e7%90%86%e8%a7%a3%e3%81%99%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae%e3%83%af%e3%83%b3%e3%82%bb%e3%83%b3%e3%83%86%e3%83%b3%e3%82%b9\/"},"modified":"2024-04-04T21:36:45","modified_gmt":"2024-04-04T12:36:45","slug":"log4j2-%e3%82%92%e5%ae%8c%e5%85%a8%e3%81%ab%e7%90%86%e8%a7%a3%e3%81%99%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae%e3%83%af%e3%83%b3%e3%82%bb%e3%83%b3%e3%83%86%e3%83%b3%e3%82%b9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/log4j2-%e3%82%92%e5%ae%8c%e5%85%a8%e3%81%ab%e7%90%86%e8%a7%a3%e3%81%99%e3%82%8b%e3%81%9f%e3%82%81%e3%81%ae%e3%83%af%e3%83%b3%e3%82%bb%e3%83%b3%e3%83%86%e3%83%b3%e3%82%b9\/","title":{"rendered":"Log4j2 \u3092\u5b8c\u5168\u306b\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u30ef\u30f3\u30bb\u30f3\u30c6\u30f3\u30b9"},"content":{"rendered":"

Log4j2\u306fJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u306e\u30ed\u30ae\u30f3\u30b0\u30c4\u30fc\u30eb\u3067\u3001\u5f37\u529b\u306a\u30ed\u30ae\u30f3\u30b0\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3001\u958b\u767a\u8005\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u52d5\u4f5c\u3092\u3088\u308a\u3088\u304f\u898b\u6975\u3081\u30c7\u30d0\u30c3\u30b0\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u4ee5\u4e0b\u306bLog4j2\u3092\u5b8c\u5168\u306b\u30de\u30b9\u30bf\u30fc\u3059\u308b\u305f\u3081\u306b\u5f79\u7acb\u3064\u8981\u70b9\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

    \n
  1. \u30ed\u30b0\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb:Log4j2\u3067\u306f\u30ed\u30b0\u51fa\u529b\u5f62\u5f0f\u3001\u30ed\u30b0\u30ec\u30d9\u30eb\u3001\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u5834\u6240\u306a\u3069\u306e\u30ed\u30b0\u8a2d\u5b9a\u60c5\u5831\u3092XML\u304bproperties\u30d5\u30a1\u30a4\u30eb\u306b\u8a2d\u5b9a\u3057\u307e\u3059\uff0e\u3053\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u3066\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u307e\u3059\uff0e<\/li>\n
  2. \u30ed\u30b0\u30ec\u30d9\u30eb\uff1aLog4j2\u3067\u306f\u3001TRACE\u3001DEBUG\u3001INFO\u3001WARN\u3001ERROR\u3001FATAL\u306a\u3069\u3001\u8907\u6570\u306e\u30ed\u30b0\u30ec\u30d9\u30eb\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u30ed\u30b0\u30ec\u30d9\u30eb\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30ed\u30b0\u306e\u8a18\u9332\u30ec\u30d9\u30eb\u3092\u5236\u5fa1\u3067\u304d\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u306f\u3001\u958b\u767a\u4e2d\u306fDEBUG\u30ec\u30d9\u30eb\u3001\u672c\u756a\u74b0\u5883\u3067\u306fINFO\u30ec\u30d9\u30eb\u4ee5\u4e0a\u306e\u30ec\u30d9\u30eb\u3092\u5229\u7528\u3057\u3066\u3001\u30ed\u30b0\u306e\u91cf\u3092\u5897\u3084\u3055\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n
  3. \u30ed\u30ae\u30f3\u30b0: Log4j2\u306fLogger\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u3066\u30ed\u30ae\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\u3002 \u5404Logger\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u7279\u5b9a\u306e\u30af\u30e9\u30b9\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3001Logger.getLogger()\u30e1\u30bd\u30c3\u30c9\u3067\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002 \u30ed\u30ac\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u3055\u307e\u3056\u307e\u306a\u30e1\u30bd\u30c3\u30c9(\u4f8b: debug()\u3001info()\u3001warn()\u3001error()\u306a\u3069)\u3092\u4f7f\u7528\u3057\u3066\u3001\u7570\u306a\u308b\u30ec\u30d9\u30eb\u306e\u30ed\u30b0\u60c5\u5831\u3092\u8a18\u9332\u3067\u304d\u307e\u3059\u3002<\/li>\n
  4. Log4j2\u3067\u306f\u3001\u30b3\u30f3\u30bd\u30fc\u30eb\u3001\u30d5\u30a1\u30a4\u30eb\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u51fa\u529b\u5148\u306b\u30ed\u30b0\u3092\u51fa\u529b\u3067\u304d\u307e\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u51fa\u529b\u5148\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/li>\n
  5. Log4j2 \u3067\u306f\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3001\u30af\u30e9\u30b9\u540d\u3001\u30ed\u30b0\u30ec\u30d9\u30eb\u306a\u3069\u3001\u30ed\u30b0\u51fa\u529b\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002PatternLayout \u306a\u3069\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u307e\u3059\u3002<\/li>\n
  6. \u30ed\u30b0\u30ed\u30fc\u30ea\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc: Log4j2\u306f\u3001\u6642\u9593\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u307e\u305f\u306f\u305d\u306e\u4ed6\u306e\u6761\u4ef6\u306b\u57fa\u3065\u3044\u3066\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u30ed\u30fc\u30ea\u30f3\u30b0\u3059\u308b\u3053\u3068\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u30b5\u30a4\u30ba\u3068\u6570\u3092\u5236\u5fa1\u3057\u3001\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u304c\u80a5\u5927\u5316\u3057\u306a\u3044\u3088\u3046\u306b\u30ed\u30b0\u30ed\u30fc\u30ea\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/li>\n
  7. \u975e\u540c\u671f\u30ed\u30ae\u30f3\u30b0: Log4j2\u306f\u975e\u540c\u671f\u30ed\u30ae\u30f3\u30b0\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u30ed\u30ae\u30f3\u30b0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u975e\u540c\u671f\u30ed\u30ac\u30fc\u3092\u69cb\u6210\u3057\u3001\u30ed\u30ae\u30f3\u30b0\u64cd\u4f5c\u3092\u72ec\u7acb\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u306b\u914d\u7f6e\u3057\u3066\u3001\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3078\u306e\u5f71\u97ff\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u63d0\u793a\u4e8b\u9805\u3092\u7406\u89e3\u3057\u3066\u9069\u7528\u3059\u308b\u3068\u3001Log4j2\u3092\u3088\u308a\u52b9\u679c\u7684\u306b\u30ed\u30ae\u30f3\u30b0\u3068\u30c7\u30d0\u30c3\u30b0\u306b\u4f7f\u7528\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4fdd\u5b88\u6027\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    Log4j2\u306fJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u306e\u30ed\u30ae\u30f3\u30b0\u30c4\u30fc\u30eb\u3067\u3001\u5f37\u529b\u306a\u30ed\u30ae\u30f3\u30b0\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3001\u958b\u767a\u8005\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u52d5\u4f5c\u3092\u3088\u308a\u3088\u304f\u898b\u6975\u3081\u30c7\u30d0\u30c3\u30b0\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u4ee5\u4e0b\u306bLog4j2\u3092\u5b8c\u5168\u306b\u30de\u30b9\u30bf\u30fc\u3059\u308b\u305f\u3081\u306b\u5f79\u7acb\u3064\u8981\u70b9\u3092 […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-127041","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nLog4j2 \u3092\u5b8c\u5168\u306b\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u30ef\u30f3\u30bb\u30f3\u30c6\u30f3\u30b9 - 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