{"id":4739,"date":"2020-01-01T00:00:00","date_gmt":"2019-12-31T15:00:00","guid":{"rendered":"https:\/\/majisemi.com\/topics\/uncategorized\/4739\/"},"modified":"2020-01-01T00:00:00","modified_gmt":"2019-12-31T15:00:00","slug":"%e3%80%90oss%e6%83%85%e5%a0%b1%e3%82%a2%e3%83%bc%e3%82%ab%e3%82%a4%e3%83%96%e3%80%91apache-log4j","status":"publish","type":"post","link":"https:\/\/majisemi.com\/topics\/oss\/4739\/","title":{"rendered":"\u3010OSS\u60c5\u5831\u30a2\u30fc\u30ab\u30a4\u30d6\u3011Apache log4j"},"content":{"rendered":"

\u203b\u5f53\u8a18\u4e8b\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u306f\u3001\u53e4\u304f\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30aa\u30d5\u30a3\u30b7\u30e3\u30eb\u30b5\u30a4\u30c8\u3067\u6700\u65b0\u60c5\u5831\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/span><\/small><\/p>\n

\u300cApache log4j\u300d\u3068\u306f<\/h1>\n
\n

\u57fa\u672c\u60c5\u5831<\/h2>\n

\u6982\u8981<\/h2>\n

Apache log4j\uff08\u30a2\u30d1\u30c3\u30c1 \u30ed\u30b0\u30d5\u30a9\u30fc\u30b8\u30a7\u30a4\uff09<\/strong>\u306f\u3001 \u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306eJava\u30d7\u30ed\u30b0\u30e9\u30e0\u7528\u30ed\u30ae\u30f3\u30b0\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\uff08API\uff09\u3067\u3059\u3002<\/p>\n

\u30ed\u30ae\u30f3\u30b0\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u3068\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u90e8\u304b\u3089\u3001\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u3084\u30a8\u30e9\u30fc\u60c5\u5831\u306a\u3069\u306e\u30ed\u30b0\u30c7\u30fc\u30bf\u3092\u3001\u30b3\u30f3\u30bd\u30fc\u30eb\u3001\u30d5\u30a1\u30a4\u30eb\u3001\u305d\u306e\u4ed6\u30ed\u30b0\u30b5\u30fc\u30d0\u306a\u3069\u30d8\u51fa\u529b\u3059\u308b\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n

\u300cApache log4j\u300d\u306f\u3001\u300clog4j\u300d\u3068\u7565\u3057\u3066\u79f0\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n

\u300cApache log4j\u300d\u306f\u3001\u30ed\u30ae\u30f3\u30b0\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u3068\u3057\u3066\u3001\u30ed\u30b0\u51fa\u529b\u30b9\u30d4\u30fc\u30c9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5bfe\u3057\u3066\u3001\u7279\u6bb5\u306b\u914d\u616e\u3055\u308c\u305f\u8a2d\u8a08\u306b\u306a\u3063\u3066\u3044\u3066\u3001\u30ed\u30b0\u51fa\u529b\u30b9\u30d4\u30fc\u30c9\u306f\u3001\u304b\u306a\u308a\u306e\u901f\u5ea6\u3092\u8a87\u308a\u307e\u3059\u3002\u4fe1\u983c\u6027\u3068\u67d4\u8edf\u6027\u304c\u3042\u308b\u30ed\u30ae\u30f3\u30b0\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u3068\u3057\u3066\u3001\u4e16\u754c\u4e2d\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

2014\u5e747\u6708\u306b\u3001\u300cLog4j 2\u300d\uff08Log4j\u306ever.2\uff09\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3066\u3001\u5404\u7a2e\u6a5f\u80fd\u5411\u4e0a\u3084\u6027\u80fd\u5411\u4e0a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u4e3b\u306a\u6a5f\u80fd<\/h2>\n

\u3010\u30ed\u30b0\u51fa\u529b\u8a2d\u5b9a\u6a5f\u80fd\u3011
\u30fb\u30ed\u30b0\u51fa\u529b\u65b9\u6cd5\u6307\u5b9a\u6a5f\u80fd\uff08Loggers)
\u30fb\u30ed\u30b0\u51fa\u529b\u5148\u6307\u5b9a\u6a5f\u80fd\uff08Appenders\uff09
\u30fb\u30ed\u30b0\u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6307\u5b9a\u6a5f\u80fd\uff08Layouts\uff09<\/p>\n

\u3010\u30ed\u30b0\u30ec\u30d9\u30eb\u8a2d\u5b9a\u6a5f\u80fd\u3011
\u4ee5\u4e0b\u306e6\u3064\u306e\u30ed\u30b0\u30ec\u30d9\u30eb\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u4e0a\u304b\u3089\u30ed\u30b0\u30ec\u30d9\u30eb\u304c\u9ad8\u3044\u9806\u3067\u3059\u3002
\u30fbFATAL(\u81f4\u547d\u7684\u306a\u30a8\u30e9\u30fc\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u7570\u5e38\u7d42\u4e86\u3092\u4f34\u3046\u3088\u3046\u306a\u3082\u306e\u3002)
\u30fbERROR(\u6a19\u6e96\u7684\u306a\u30a8\u30e9\u30fc\u3002\u30e9\u30f3\u30bf\u30a4\u30e0\u30a8\u30e9\u30fc\u306a\u3069\u3002)
\u30fbWARN(\u8b66\u544a\u3002API\u306e\u4e0d\u9069\u5207\u306a\u4f7f\u7528\u3001\u30a8\u30e9\u30fc\u306b\u8fd1\u3044\u4e8b\u8c61\u306a\u3069\u3002)
\u30fbINFO(\u60c5\u5831\u3002\u5b9f\u884c\u6642\u306e\u3001\u958b\u59cb\u3084\u7d42\u4e86\u306a\u3069\u306e\u6ce8\u76ee\u3059\u3079\u304d\u4e8b\u8c61\u3002)
\u30fbDEBUG(\u30c7\u30d0\u30c3\u30b0\u7528\u60c5\u5831\u3002\u30b7\u30b9\u30c6\u30e0\u52d5\u4f5c\u72b6\u6cc1\u306b\u95a2\u3059\u308b\u8a73\u7d30\u306a\u60c5\u5831\u3002)
\u30fbTRACE(\u30c8\u30ec\u30fc\u30b9\u60c5\u5831\u3002\u66f4\u306b\u8a73\u7d30\u306a\u60c5\u5831\u3002)<\/p>\n

\u4e3b\u306a\u7279\u5fb4<\/h2>\n

\u3010\u30ed\u30b0\u51fa\u529b\u5148\u9078\u629e\u80a2\u304c\u8c4a\u5bcc\u3011
\u30fb\u30b3\u30f3\u30bd\u30fc\u30eb
\u30fb\u30d5\u30a1\u30a4\u30eb
\u30fbJava.io.Writer
\u30fbJMS(Java Message Service)
\u30fb\u96fb\u5b50\u30e1\u30fc\u30eb
\u30fb\u30ea\u30e2\u30fc\u30c8\u30bd\u30b1\u30c3\u30c8\u30b5\u30fc\u30d0
\u30fb\u30ea\u30e2\u30fc\u30c8UnixSyslog\u30c7\u30fc\u30e2\u30f3
\u30fbWindows\u306e\u30a4\u30d9\u30f3\u30c8\u30ed\u30b0
\u30fb\u305d\u306e\u4ed6<\/p>\n

\u3010\u30ed\u30b0\u51fa\u529b\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u9078\u629e\u53ef\u80fd\u3011
\u30fbSimpleLayout(\u5358\u7d14\u30ec\u30a4\u30a2\u30a6\u30c8)
\u30fbPatternLayout(\u30e6\u30fc\u30b6\u6307\u5b9a\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8)
\u30fbHTMLLayout(HTML\u30c6\u30fc\u30d6\u30eb\u5f62\u5f0f)
\u30fbTTCCLayout(\u6642\u9593\u3068\u30b9\u30ec\u30c3\u30c9\u3001\u30ab\u30c6\u30b4\u30ea\u3068\u30cd\u30b9\u30c8\u5316\u8a3a\u65ad\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u60c5\u5831\u3001\u540d\u524d\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8)<\/p>\n

\u3010\u30ed\u30b0\u51fa\u529b\u30b9\u30d4\u30fc\u30c9\u304c\u9ad8\u901f\u3011
\u30ed\u30b0\u51fa\u529b\u30b9\u30d4\u30fc\u30c9\u304c\u975e\u5e38\u306b\u9ad8\u901f\u3067\u3042\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u52d5\u4f5c\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u306b\u304f\u304f\u3001\u5b9f\u884c\u901f\u5ea6\u306e\u4f4e\u4e0b\u3092\u307e\u306d\u304d\u306b\u304f\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3010\u67d4\u8edf\u6027\u3011
\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u5185\u306b\u3001\u30ed\u30b0\u51fa\u529b\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3057\u3066\u304a\u304d\u3001log4j\u306e\u8a2d\u5b9a\u3092\u5909\u3048\u308b\u3060\u3051\u3067\u3001\u30ed\u30b0\u51fa\u529bON\/OFF\u306e\u5207\u308a\u66ff\u3048\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u8a2d\u5b9a\u306e\u5909\u66f4\u3067\u3001\u30ed\u30b0\u51fa\u529b\u5148\u3084\u30ed\u30b0\u306e\u7a2e\u985e\u3082\u5909\u66f4\u3067\u304d\u308b\u305f\u3081\u3001\u7d30\u304b\u3044\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304c\u53ef\u80fd\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3010\u30b3\u30b9\u30c8\u52b9\u679c\u3011
\u30e9\u30a4\u30bb\u30f3\u30b9\u8cbb\u7528\u304c\u304b\u304b\u3089\u306a\u3044\u305f\u3081\u3001\u5546\u7528\u88fd\u54c1\u306b\u6bd4\u3079\u5c0e\u5165\u30b3\u30b9\u30c8\u3092\u7bc0\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u5c0e\u5165\u4e8b\u4f8b<\/h2>\n

\u300cApache log4j\u300d\u306f\u3001\u4fe1\u983c\u3067\u304d\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306eJava \u30d7\u30ed\u30b0\u30e9\u30e0\u7528\u30ed\u30ae\u30f3\u30b0\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u3068\u3057\u3066\u3001\u4e2d\u5c0f\u898f\u6a21\u304b\u3089\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u898f\u6a21\u307e\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u696d\u7a2e\u30fb\u30b7\u30b9\u30c6\u30e0\u3067\u5e45\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30e9\u30a4\u30bb\u30f3\u30b9\u60c5\u5831<\/h2>\n

\u300cApache log4j\u300d\u306f\u3001\u300cApache 2.0 \u30e9\u30a4\u30bb\u30f3\u30b9\u300d\u3067\u3059\u3002Apache\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8ca1\u56e3 \u306b\u3088\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5411\u3051\u30e9\u30a4\u30bb\u30f3\u30b9\u898f\u5b9a\u3067\u3042\u308b\u300cApache License\u300d\u306b\u3088\u3063\u3066\u3001\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30e9\u30a4\u30bb\u30f3\u30b9\u306b\u5f93\u3046\u3053\u3068\u3092\u6761\u4ef6\u3068\u3057\u3066\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u6539\u5909\u3068\u516c\u958b\u304c\u8a31\u53ef\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/h2>\n

\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30da\u30fc\u30b8<\/a><\/p>\n

\u203b\u5b9a\u671f\u7684\u306b\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u5b9f\u65bd\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u4e00\u90e8\u60c5\u5831\u304c\u53e4\u3044\u5834\u5408\u304c\u3054\u3056\u3044\u307e\u3059\u3002\u3054\u4e86\u627f\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

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