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鍏抽敭瀛楋細Log4j
闅炬槗搴︼細綆鍗?/SPAN>
杞歡鐗堟湰錛歛pache-log4j-1.2.9
鏃墮棿錛?006-01-26
Author錛欿ino
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鍛靛懙 蹇繃騫翠簡銆傜溂鐪嬭韓杈圭殑鏈嬪弸涓涓竴涓寮錛岃笍涓婂綊閫旓紝蹇冮噷涓嶅厤鏈変簺娣℃貳鐨勫咖浼ゃ備負浜嗘秷紓ㄦ椂闂達紝鍐欏啓鏂囩珷涔熷拰涔呰繚鐨勫ぇ瀹惰亰鑱娿?BR>
榪欓噷鍏堢鎰垮悇浣嶆湅鍙嬫柊鏄ュ揩涔愩傚湪鐙楀勾鏃恒佹椇銆佹椇鏃烘椇銆?
鍒囧叆姝i鍚с傚ぇ鍚嶉紟榧庣殑Log4j鎴戜篃鐞嗚В寰椾笉娣憋紝榪欓噷閲囩敤鍋囪鐨勯棶絳旀柟寮忎粙緇嶅惂銆?BR>Q錛歀og4j鏄釜浠涔堜笢瑗匡紵
A錛歀og4j搴旇鍙仛 Log for java鍚э紝鏄疉pacheGroup鏃椾笅鐨勬槑鏄熼」鐩紝宸茬粡搴旂敤鍦ㄥ緢澶氭柟闈簡銆傚悓綾葷殑榪樻湁閽堝c c++絳夌殑log4c log4XXX涔嬬被銆傝鑷繁鐪嬮摼鎺ワ細
Q錛歀og4j鍒板簳鏄庝箞琚簲鐢ㄥ緱錛?BR>A錛氳繖灝辮浠庣粨鏋勪笂璇翠簡錛岄鍏堟垜浠簲鐢ㄧ殑騫朵笉鏄疞og4j鑰屾槸Jakarta-Commons-logging錛屼絾鏄繖鍙槸涓涓猧nterface鍖呮病鏈夊叿浣撶殑瀹炵幇錛堝叾瀹炴槸鏈夌殑錛屽彨鍋歋ampleLog寮變絾鏄揩錛夈傛墍浠ュ湪澶х伀鐨剆ource閲屼綘鍙渶瑕侀潰鍚慙ogging緙栫▼鑰屾棤欏誨叧蹇冨埌搴曟槸濡備綍鐢熸垚鐨勩傚洜涓篖ogging欏圭洰鏀寔寰堝瀹炵幇騫朵笉涓瀹氭槸Log4j銆傝繕鏈塉DK鐨凩og涔熻鍟娿傞偅鎴戜滑瑕佸仛鐨勫氨鏄?nbsp; 閰嶇疆 Log4j鍒扮郴緇熷氨濂戒簡銆?BR>
Q錛歀og4j鍒板簳瑕侀厤緗粈涔堜笢瑗匡紝鎵嶈兘琚郴緇熻瘑鍒紵
A錛?涓細Jar鍖?nbsp; 鍜?nbsp; log4j閰嶇疆鏂囦歡銆?Jar鎴戝氨涓嶈浜嗐傜幇鍦ㄦ潵璇碙og4j閰嶇疆鏂囦歡銆傝繖涓枃浠跺彲浠ラ殢鎰忓懡鍚嶏紝榛樿鐨勬枃浠舵槸 log4j.properties 銆傛斁鍦ㄤ綘鐨剆rc鏍圭洰褰曚笅灝卞ソ銆傛瘮濡?浣犵殑source鐨刢atagory鏄痗om.yourcompany.xx閭d箞鏀懼湪鍜宑om騫跺垪鐨勭洰褰曚笅灝卞ソ銆?BR>
Q錛氬鏋滄垜涓嶆兂鐢ㄩ粯璁ょ殑log4j.properties 鎴戝簲璇ユ庝箞瀹氫箟錛屾庝箞鍋氾紵
A錛氶偅灝變嬌鐢ㄤ笅杈圭殑鍛戒護瀹氫箟錛?BR>System.setProperty(""); -_-! 鍏蜂綋鍐呭鎯充笉璧鋒潵浜嗭紝鐣欒█涓ˉ鍏呭惂銆?BR>濡傛灉浣犳槸Struts宸ョ▼鎴栬匴eb宸ョ▼錛岄渶瑕佸仛涓涓猻evlet鎶婅繖孌典唬鐮佽澆鍏ャ傞噸杞紸ctionServlet鐨刬nit鏂規硶灝卞ソ銆?BR>
Q錛氳繖涓枃浠跺浣曞畾涔夛紵
A錛氬涓嬩緥銆傦紙鍏蜂綋鐨勫彲浠ユ煡闃匤avaDoc錛?BR>### direct log messages to console ###
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.Threshold=INFO
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy MMM dd HH:mm:ss:SSS} %-5p %m (%F:%L) [%t]%n
### direct messages to file gm_web.log ###
log4j.appender.FILE=org.apache.log4j.RollingFileAppender
log4j.appender.FILE.File=../logs/gm_web.log
log4j.appender.FILE.MaxFileSize=1000KB
log4j.appender.FILE.MaxBackupIndex=5
log4j.appender.FILE.Append=true
log4j.appender.FILE.Threshold=DEBUG
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d{yyyy MMM dd HH:mm:ss:SSS} %-5p %m (%F:%L) [%t]%n
# Set root category priority to INFO and its only appender to CONSOLE.
log4j.rootCategory=ERROR, CONSOLE, FILE
log4j.logger.com.mycompany.ui=DEBUG, CONSOLE, FILE
XML鏍煎紡鐨勫畾涔夛紝鎴戝氨涓嶈浜嗭紝璧勬枡婊″ぉ閮芥槸銆?BR>
Q錛氬惉璇碙og璁板綍鏈夌戶鎵垮叧緋伙紝閭d箞澶歀og錛屾晥鐜囧お浣庝簡鍚?BR>A錛氭湁緇ф壙鍏崇郴錛屽搴旂殑褰撶劧灝辨湁鎵撶牬緇ф壙鐨勫畾涔夛紝姣斿涓婁緥銆?BR>log4j.rootCategory=ERROR, CONSOLE, FILE
log4j.logger.com.mycompany.ui=DEBUG, CONSOLE, FILE
com.mycompany.ui灝辯戶鎵夸簡rootCategory鐨凩og璁板綍綰у埆銆備絾鏄鏋滃儚鐮撮櫎浣跨敤additivity
log4j.additivity.com.mycompany.ui=false
灝盞O浜嗐?BR>
Q錛歭og4j.appender.FILE.File=yourlogfile.log 鍒板簳緇欐垜鎶奓og鏀懼摢鍘諱簡錛熻兘鏀逛笉錛?BR>A錛氬鏋滄槸Tomcat閭e氨鏀懼埌bin涓嬭竟浜嗐傝兘鏀瑰晩錛宐in灝辨槸鍩哄噯鐩綍錛屽啓鐩稿璺緞灝卞ソ鍜傚涓婁緥銆?BR>
Q錛歀og4j涓瑿onversionPattern鍒板簳閮芥槸浠涔堟剰鎬濓紝閮芥庝箞鐢ㄥ晩錛?BR>A錛?濡備笅瑙i噴
Q錛欳onversionPattern鍙傛暟鑳藉幓鍝噷鍙傝冨憿錛?BR>A錛欽avaDoc PatternLayout 綾匯?/P>
http://logging.apache.org/log4j/docs/api-unstable/index.html
Q錛歀og4j浼氫笉浼氬お鎱㈠晩錛屾ц兘濡備綍錛?BR>A錛氳繖涓棶棰樹笉濂藉洖絳斻傚弽姝h褰曚竴鏉og澶х害鐨勬椂闂存槸20ms 鍒?400ms鍚э紝鏍規嵁浣燙onversionPattern闇瑕佽褰曠殑鏍煎紡鍐呭錛屼互鍙妏ackage catagory鐨勭戶鎵垮叧緋繪潵鍐沖畾銆傞偅涔堟瘡涓猵attern鍒板簳鍝釜蹇摢涓參錛屽摢涓秴綰ф參錛岃鐪?A >http://logging.apache.org/log4j/docs/api-unstable/index.html銆傛誨綊涓鍙ヨ瘽錛屽彧瑕佽log4j緇欎綘trace璋冪敤鍏崇郴錛屽弽灝刢lass 灝卞埆鎸囨湜鑳藉揩錛屾牸璋侀兘涓鏍鳳紝鏄惂銆?BR>
Q錛氫笅鐝簡娌★紝鍟板棪榪欎箞澶氾紝鏈夐棶棰樺啀闂綘鍚э紝鐣欎笅鑱旂郴淇℃伅
A錛氬垰涓嬬彮錛岃繕鍚冧簡鏈嬪弸鐨勮泲緋?浠栨湰浜烘鍦ㄩ鏈轟笂錛屽搱鍝堬紝鍚冧簡涓嫭椋?錛屽洖瀹跺挴銆傝璁洪棶棰樼殑璇風暀璦鎴栬?A href="mailto:kinoviti@gmail.com">kinoviti@gmail.com QQ:23493713