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<p><strong><font color="#0000ff">&gt;&gt;&gt;&gt; 4 . Log4j鐨勯厤緗?&lt;&lt;&lt;&lt;銆�</font></strong>銆�<br />
<br />
浠ヤ笂鏄粠鍘熺悊鏂歸潰璇存槑Log4j鐨勪嬌鐢ㄦ柟娉曪紝鍦ㄥ叿浣揓ava緙栫▼浣跨敤Log4j鍙互鍙傜収浠ヤ笅紺轟緥錛?br />
<br />
<strong>1銆?寤虹珛Logger瀹炰緥</strong>錛?br />
璇硶琛ㄧず錛歱ublic static Logger getLogger( String name)<br />
瀹為檯浣跨敤錛歴tatic Logger logger = Logger.getLogger(ServerWithLog4j.class.getName ()) ;<br />
<br />
<strong>2銆?璇誨彇閰嶇疆鏂囦歡</strong>錛?br />
鑾峰緱浜哃ogger鐨勫疄渚嬩箣鍚庯紝鎺ヤ笅鏉ュ皢閰嶇疆Log4j浣跨敤鐜錛?br />
璇硶琛ㄧず錛?br />
BasicConfigurator.configure()錛氳嚜鍔ㄥ揩閫熷湴浣跨敤緙虹渷Log4j鐜銆?br />
PropertyConfigurator.configure(String configFilename)錛氳鍙栦嬌鐢↗ava鐨勭壒鎬ф枃浠剁紪鍐欑殑閰嶇疆鏂囦歡銆?br />
DOMConfigurator.configure(String filename)錛氳鍙朮ML褰㈠紡鐨勯厤緗枃浠躲�?br />
瀹為檯浣跨敤錛?br />
&nbsp;&nbsp;&nbsp; PropertyConfigurator.configure("ServerWithLog4j.properties");<br />
<br />
<strong>3銆?鎻掑叆鏃ュ織淇℃伅</strong><br />
瀹屾垚浜嗕互涓婅繛涓楠や互鍚庯紝涓嬮潰灝卞彲浠ユ寜鏃ュ織鐨勪笉鍚岀駭鍒彃鍏ュ埌浣犺璁板綍鏃ュ織鐨勪換浣曞湴鏂逛簡銆?br />
璇硶琛ㄧず錛?br />
Logger.debug(Object message);//璋冭瘯淇℃伅<br />
Logger.info(Object message);//涓�鑸俊鎭?br />
Logger.warn(Object message);//璀﹀憡淇℃伅<br />
Logger.error(Object message);//閿欒淇℃伅<br />
Logger.fatal(Object message);//鑷村懡閿欒淇℃伅</p>
<p>銆�銆�瀹為檯浣跨敤錛歭ogger.info("ServerSocket before accept: " + server);<br />
<br />
<strong><font color="#0000ff">&gt;&gt;&gt;&gt; 5. 閰嶇疆榪囩▼ &lt;&lt;&lt;&lt;<br />
<br />
</font></strong>銆�鍦ㄥ疄闄呯紪紼嬫椂錛岃浣縇og4j鐪熸鍦ㄧ郴緇熶腑榪愯浜嬪厛榪樿瀵歸厤緗枃浠惰繘琛屽畾涔夈�傚畾涔夋楠ゅ氨鏄Logger銆丄ppender鍙奓ayout鐨勫垎鍒嬌鐢ㄣ�?br />
&nbsp;&nbsp;&nbsp; Log4j鏀寔涓ょ閰嶇疆鏂囦歡鏍煎紡錛屼竴縐嶆槸XML鏍煎紡鐨勬枃浠訛紝涓�縐嶆槸java properties錛坘ey=value錛夈�怞ava鐗規�ф枃浠訛紙閿?鍊鹼級銆戙�備笅闈㈡垜浠粙緇嶄嬌鐢↗ava鐗規�ф枃浠跺仛涓洪厤緗枃浠剁殑鏂規硶<br />
&nbsp;&nbsp; 鍏蜂綋濡備笅錛?br />
<br />
<strong>1銆侀厤緗牴Logger錛?/strong>鍏惰娉曚負錛?br />
log4j.rootLogger = [ level ] , appenderName1, appenderName2, &#8230;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; level : 鏄棩蹇楄褰曠殑浼樺厛綰э紝鍒嗕負OFF銆丗ATAL銆丒RROR銆乄ARN銆両NFO銆丏EBUG銆丄LL鎴栬�呮偍瀹氫箟鐨勭駭鍒�侺og4j寤鴻鍙嬌鐢ㄥ洓涓駭鍒紝浼?鍏堢駭浠庨珮鍒頒綆鍒嗗埆鏄疎RROR銆乄ARN銆両NFO銆丏EBUG銆傞�氳繃鍦ㄨ繖閲屽畾涔夌殑綰у埆錛屾偍鍙互鎺у埗鍒板簲鐢ㄧ▼搴忎腑鐩稿簲綰у埆鐨勬棩蹇椾俊鎭殑寮�鍏熾�傛瘮濡傚湪榪欓噷瀹?涔変簡INFO綰у埆錛屽垯搴旂敤紼嬪簭涓墍鏈塂EBUG綰у埆鐨勬棩蹇椾俊鎭皢涓嶈鎵撳嵃鍑烘潵銆?br />
&nbsp;&nbsp;&nbsp;&nbsp; appenderName:灝辨槸鎸囧畾鏃ュ織淇℃伅杈撳嚭鍒板摢涓湴鏂廣�傛偍鍙互鍚屾椂鎸囧畾澶氫釜杈撳嚭鐩殑鍦般�?br />
&nbsp;&nbsp; 渚嬪錛歭og4j.rootLogger錛漣nfo,A1,B2,C3<br />
<br />
<strong>2銆侀厤緗棩蹇椾俊鎭緭鍑虹洰鐨勫湴</strong>錛屽叾璇硶涓猴細<br />
log4j.appender.appenderName = fully.qualified.name.of.appender.class //<br />
"fully.qualified.name.of.appender.class" 鍙互鎸囧畾涓嬮潰浜斾釜鐩殑鍦頒腑鐨勪竴涓細<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1.org.apache.log4j.ConsoleAppender錛堟帶鍒跺彴錛?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.org.apache.log4j.FileAppender錛堟枃浠訛級<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3.org.apache.log4j.DailyRollingFileAppender錛堟瘡澶╀駭鐢熶竴涓棩蹇楁枃浠訛級<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4.org.apache.log4j.RollingFileAppender錛堟枃浠跺ぇ灝忓埌杈炬寚瀹氬昂瀵哥殑鏃跺�欎駭鐢熶竴涓柊鐨勬枃浠訛級<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5.org.apache.log4j.WriterAppender錛堝皢鏃ュ織淇℃伅浠ユ祦鏍煎紡鍙戦�佸埌浠繪剰鎸囧畾鐨勫湴鏂癸級<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>1.ConsoleAppender閫夐」<br />
</strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Threshold=WARN:鎸囧畾鏃ュ織娑堟伅鐨勮緭鍑烘渶浣庡眰嬈°�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ImmediateFlush=true:榛樿鍊兼槸true,鎰忚皳鐫�鎵�鏈夌殑娑堟伅閮戒細琚珛鍗寵緭鍑恒�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Target=System.err錛氶粯璁ゆ儏鍐典笅鏄細System.out,鎸囧畾杈撳嚭鎺у埗鍙?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong>2.FileAppender</strong> 閫夐」<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Threshold=WARN:鎸囧畾鏃ュ織娑堟伅鐨勮緭鍑烘渶浣庡眰嬈°�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ImmediateFlush=true:榛樿鍊兼槸true,鎰忚皳鐫�鎵�鏈夌殑娑堟伅閮戒細琚珛鍗寵緭鍑恒�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; File=mylog.txt:鎸囧畾娑堟伅杈撳嚭鍒癿ylog.txt鏂囦歡銆?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Append=false:榛樿鍊兼槸true,鍗沖皢娑堟伅澧炲姞鍒版寚瀹氭枃浠朵腑錛宖alse鎸囧皢娑堟伅瑕嗙洊鎸囧畾鐨勬枃浠跺唴瀹廣�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3.<strong>DailyRollingFileAppender</strong> 閫夐」<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Threshold=WARN:鎸囧畾鏃ュ織娑堟伅鐨勮緭鍑烘渶浣庡眰嬈°�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ImmediateFlush=true:榛樿鍊兼槸true,鎰忚皳鐫�鎵�鏈夌殑娑堟伅閮戒細琚珛鍗寵緭鍑恒�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; File=mylog.txt:鎸囧畾娑堟伅杈撳嚭鍒癿ylog.txt鏂囦歡銆?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Append=false:榛樿鍊兼槸true,鍗沖皢娑堟伅澧炲姞鍒版寚瀹氭枃浠朵腑錛宖alse鎸囧皢娑堟伅瑕嗙洊鎸囧畾鐨勬枃浠跺唴瀹廣�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DatePattern='.'yyyy-ww:姣忓懆婊氬姩涓�嬈℃枃浠訛紝鍗蟲瘡鍛ㄤ駭鐢熶竴涓柊鐨勬枃浠躲�傚綋鐒朵篃鍙互鎸囧畾鎸夋湀銆佸懆銆佸ぉ銆佹椂鍜屽垎銆傚嵆瀵瑰簲鐨勬牸寮忓涓嬶細<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1)'.'yyyy-MM: 姣忔湀<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2)'.'yyyy-ww: 姣忓懆 <br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3)'.'yyyy-MM-dd: 姣忓ぉ<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4)'.'yyyy-MM-dd-a: 姣忓ぉ涓ゆ<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5)'.'yyyy-MM-dd-HH: 姣忓皬鏃?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6)'.'yyyy-MM-dd-HH-mm: 姣忓垎閽?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4.<strong>RollingFileAppender</strong> 閫夐」<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Threshold=WARN:鎸囧畾鏃ュ織娑堟伅鐨勮緭鍑烘渶浣庡眰嬈°�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ImmediateFlush=true:榛樿鍊兼槸true,鎰忚皳鐫�鎵�鏈夌殑娑堟伅閮戒細琚珛鍗寵緭鍑恒�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; File=mylog.txt:鎸囧畾娑堟伅杈撳嚭鍒癿ylog.txt鏂囦歡銆?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Append=false:榛樿鍊兼槸true,鍗沖皢娑堟伅澧炲姞鍒版寚瀹氭枃浠朵腑錛宖alse鎸囧皢娑堟伅瑕嗙洊鎸囧畾鐨勬枃浠跺唴瀹廣�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MaxFileSize=100KB: 鍚庣紑鍙互鏄疜B, MB 鎴栬�呮槸 GB. 鍦ㄦ棩蹇楁枃浠跺埌杈捐澶у皬鏃訛紝灝嗕細鑷姩婊氬姩錛屽嵆灝嗗師鏉ョ殑鍐呭縐誨埌mylog.log.1鏂囦歡銆?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MaxBackupIndex=2:鎸囧畾鍙互浜х敓鐨勬粴鍔ㄦ枃浠剁殑鏈�澶ф暟銆?/p>
<p>瀹為檯搴旂敤錛?br />
log4j.appender.A1=org.apache.log4j.ConsoleAppender //榪欓噷鎸囧畾浜嗘棩蹇楄緭鍑虹殑絎竴涓綅緗瓵1鏄帶鍒跺彴ConsoleAppender<br />
<br />
<strong>3銆侀厤緗棩蹇椾俊鎭殑鏍煎紡</strong>錛屽叾璇硶涓猴細<br />
<strong>A.</strong> <strong>log4j.appender.appenderName.layout = fully.qualified.name.of.layout.class<br />
</strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "fully.qualified.name.of.layout.class" 鍙互鎸囧畾涓嬮潰4涓牸寮忎腑鐨勪竴涓細<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1.org.apache.log4j.HTMLLayout錛堜互HTML琛ㄦ牸褰㈠紡甯冨眬錛夛紝<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.org.apache.log4j.PatternLayout錛堝彲浠ョ伒媧誨湴鎸囧畾甯冨眬妯″紡錛夛紝<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3.org.apache.log4j.SimpleLayout錛堝寘鍚棩蹇椾俊鎭殑綰у埆鍜屼俊鎭瓧絎︿覆錛夛紝<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4.org.apache.log4j.TTCCLayout錛堝寘鍚棩蹇椾駭鐢熺殑鏃墮棿銆佺嚎紼嬨�佺被鍒瓑絳変俊鎭級<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1.HTMLLayout 閫夐」<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LocationInfo=true:榛樿鍊兼槸false,杈撳嚭java鏂囦歡鍚嶇О鍜岃鍙?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title=my app file: 榛樿鍊兼槸 Log4J Log Messages.<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.PatternLayout 閫夐」<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ConversionPattern=%m%n :鎸囧畾鎬庢牱鏍煎紡鍖栨寚瀹氱殑娑堟伅銆?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3.XMLLayout 閫夐」<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LocationInfo=true:榛樿鍊兼槸false,杈撳嚭java鏂囦歡鍜岃鍙?br />
&nbsp;&nbsp; 瀹為檯搴旂敤錛?br />
&nbsp;&nbsp; 銆�銆�log4j.appender.A1.layout=org.apache.log4j.PatternLayout</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>B</strong>.<strong> log4j.appender.A1.layout.ConversionPattern=%-4r %-5p %d{yyyy-MM-dd HH:mm:ssS} %c %m%n<br />
</strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 榪欓噷闇�瑕佽鏄庣殑灝辨槸鏃ュ織淇℃伅鏍煎紡涓嚑涓鍙鋒墍浠ｈ〃鐨勫惈涔夛細<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 錛峏鍙? X淇℃伅杈撳嚭鏃跺乏瀵歸綈錛?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %p: 杈撳嚭鏃ュ織淇℃伅浼樺厛綰э紝鍗矰EBUG錛孖NFO錛學ARN錛孍RROR錛孎ATAL,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %d: 杈撳嚭鏃ュ織鏃墮棿鐐圭殑鏃ユ湡鎴栨椂闂達紝榛樿鏍煎紡涓篒SO8601錛屼篃鍙互鍦ㄥ叾鍚庢寚瀹氭牸寮忥紝姣斿錛?d{yyy MMM dd HH:mm:ss,SSS}錛岃緭鍑虹被浼鹼細2002騫?0鏈?8鏃?22錛?0錛?8錛?21<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %r: 杈撳嚭鑷簲鐢ㄥ惎鍔ㄥ埌杈撳嚭璇og淇℃伅鑰楄垂鐨勬縐掓暟<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %c: 杈撳嚭鏃ュ織淇℃伅鎵�灞炵殑綾葷洰錛岄�氬父灝辨槸鎵�鍦ㄧ被鐨勫叏鍚?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %t: 杈撳嚭浜х敓璇ユ棩蹇椾簨浠剁殑綰跨▼鍚?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %l: 杈撳嚭鏃ュ織浜嬩歡鐨勫彂鐢熶綅緗紝鐩稿綋浜?C.%M(%F:%L)鐨勭粍鍚?鍖呮嫭綾葷洰鍚嶃�佸彂鐢熺殑綰跨▼錛屼互鍙婂湪浠ｇ爜涓殑琛屾暟銆備婦渚嬶細Testlog4.main(TestLog4.java:10)<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %x: 杈撳嚭鍜屽綋鍓嶇嚎紼嬬浉鍏寵仈鐨凬DC(宓屽璇婃柇鐜),灝ゅ叾鐢ㄥ埌鍍廽ava servlets榪欐牱鐨勫瀹㈡埛澶氱嚎紼嬬殑搴旂敤涓�?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %%: 杈撳嚭涓�涓?%"瀛楃<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %F: 杈撳嚭鏃ュ織娑堟伅浜х敓鏃舵墍鍦ㄧ殑鏂囦歡鍚嶇О<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %L: 杈撳嚭浠ｇ爜涓殑琛屽彿<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %m: 杈撳嚭浠ｇ爜涓寚瀹氱殑娑堟伅,浜х敓鐨勬棩蹇楀叿浣撲俊鎭?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %n: 杈撳嚭涓�涓洖杞︽崲琛岀錛學indows騫沖彴涓?\r\n"錛孶nix騫沖彴涓?\n"杈撳嚭鏃ュ織淇℃伅鎹㈣<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 鍙互鍦?涓庢ā寮忓瓧絎︿箣闂村姞涓婁慨楗扮鏉ユ帶鍒跺叾鏈�灝忓搴︺�佹渶澶у搴︺�佸拰鏂囨湰鐨勫榻愭柟寮忋�傚錛?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1)%20c錛氭寚瀹氳緭鍑篶ategory鐨勫悕縐幫紝鏈�灝忕殑瀹藉害鏄?0錛屽鏋渃ategory鐨勫悕縐板皬浜?0鐨勮瘽錛岄粯璁ょ殑鎯呭喌涓嬪彸瀵歸綈銆?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2)%-20c:鎸囧畾杈撳嚭category鐨勫悕縐幫紝鏈�灝忕殑瀹藉害鏄?0錛屽鏋渃ategory鐨勫悕縐板皬浜?0鐨勮瘽錛?-"鍙鋒寚瀹氬乏瀵歸綈銆?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3)%.30c:鎸囧畾杈撳嚭category鐨勫悕縐幫紝鏈�澶х殑瀹藉害鏄?0錛屽鏋渃ategory鐨勫悕縐板ぇ浜?0鐨勮瘽錛屽氨浼氬皢宸﹁竟澶氬嚭鐨勫瓧絎︽埅鎺夛紝浣嗗皬浜?0鐨勮瘽涔熶笉浼氭湁絀烘牸銆?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4)%20.30c:濡傛灉category鐨勫悕縐板皬浜?0灝辮ˉ絀烘牸錛屽茍涓斿彸瀵歸綈錛屽鏋滃叾鍚嶇О闀夸簬30瀛楃錛屽氨浠庡乏杈逛氦榪滈攢鍑虹殑瀛楃鎴帀銆?/p>
<p>銆�銆�榪欓噷涓婇潰涓変釜姝ラ鏄鍓嶉潰Log4j緇勪歡璇存槑鐨勪竴涓畝鍖栵紱涓嬮潰緇欏嚭涓�涓叿浣撻厤緗緥瀛愶紝鍦ㄧ▼搴忎腑鍙互鍙傜収鎵ц錛?br />
log4j.rootLogger=INFO,A1錛孊2<br />
log4j.appender.A1=org.apache.log4j.ConsoleAppender<br />
log4j.appender.A1.layout=org.apache.log4j.PatternLayout<br />
log4j.appender.A1.layout.ConversionPattern=%-4r %-5p %d{yyyy-MM-dd HH:mm:ssS} %c %m%n<br />
銆�銆�鏍規嵁涓婇潰鐨勬棩蹇楁牸寮忥紝鏌愪竴涓▼搴忕殑杈撳嚭緇撴灉濡備笅錛?br />
0銆�銆�INFO銆�2003-06-13 13:23:46968 ClientWithLog4j Client socket: Socket[addr=localhost/127.0.0.1,port=8002,localport=2014]<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16銆� DEBUG 2003-06-13 13:23:46984 ClientWithLog4j Server says: 'Java server with log4j, Fri Jun 13 13:23:46 CST 2003'<br />
16銆� DEBUG 2003-06-13 13:23:46984 ClientWithLog4j GOOD<br />
16銆� DEBUG 2003-06-13 13:23:46984 ClientWithLog4j Server responds: 'Command 'HELLO' not understood.'<br />
16銆� DEBUG 2003-06-13 13:23:46984 ClientWithLog4j HELP<br />
16銆� DEBUG 2003-06-13 13:23:46984 ClientWithLog4j Server responds: 'Vocabulary: HELP QUIT'<br />
16銆� DEBUG 2003-06-13 13:23:46984 ClientWithLog4j QUIT<br />
<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong> 4. # 褰撹緭鍑轟俊鎭簬鍥炴粴鏂囦歡鏃?/strong></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log4j.appender.ROLLING_FILE=org.apache.log4j.RollingFileAppender&nbsp;&nbsp; //鎸囧畾浠ユ枃浠剁殑鏂瑰紡杈撳嚭鏃ュ織<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log4j.appender.ROLLING_FILE.Threshold=ERROR <br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log4j.appender.ROLLING_FILE.File=rolling.log //鏂囦歡浣嶇疆,涔熷彲浠ョ敤鍙橀噺${java.home}銆乺olling.log<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log4j.appender.ROLLING_FILE.Append=true <br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log4j.appender.ROLLING_FILE.MaxFileSize=10KB //鏂囦歡鏈�澶у昂瀵?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log4j.appender.ROLLING_FILE.MaxBackupIndex=1 //澶囦喚鏁?br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log4j.appender.ROLLING_FILE.layout=org.apache.log4j.PatternLayout <br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log4j.appender.ROLLING_FILE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n 銆�銆�</p>
<p>&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;&#215;<br />
<strong><font color="#0000ff"><br />
</font></strong><strong><font color="#0000ff">&gt;&gt;&gt;&gt; 6. Log4j姣旇緝鍏ㄩ潰鐨勯厤緗?&lt;&lt;&lt;&lt;</font></strong></p>
<p>LOG4J鐨勯厤緗箣綆�鍗曚嬌瀹冮亶鍙婁簬瓚婃潵瓚婂鐨勫簲鐢ㄤ腑浜嗭細Log4J閰嶇疆鏂囦歡瀹炵幇浜嗚緭鍑哄埌鎺у埗鍙般�佹枃浠躲�佸洖婊氭枃浠躲�佸彂閫佹棩蹇楅偖浠躲�佽緭鍑哄埌鏁版嵁搴撴棩蹇楄〃銆佽嚜瀹氫箟鏍囩絳夊叏濂楀姛鑳姐�傛嫨鍏朵竴浜屼嬌鐢ㄥ氨澶熺敤浜嗭紝</p>
<p>log4j.rootLogger=DEBUG,CONSOLE,A1,im <br />
log4j.addivity.org.apache=true</p>
<p># 搴旂敤浜庢帶鍒跺彴</p>
<p>log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender <br />
log4j.appender.Threshold=DEBUG <br />
log4j.appender.CONSOLE.Target=System.out <br />
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout <br />
log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n <br />
#log4j.appender.CONSOLE.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD] n%c[CATEGORY]%n%m[MESSAGE]%n%n</p>
<p>#搴旂敤浜庢枃浠?/p>
<p>log4j.appender.FILE=org.apache.log4j.FileAppender <br />
log4j.appender.FILE.File=file.log <br />
log4j.appender.FILE.Append=false <br />
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout <br />
log4j.appender.FILE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n <br />
# Use this layout for LogFactor 5 analysis</p>
<p># 搴旂敤浜庢枃浠跺洖婊?/p>
<p>log4j.appender.ROLLING_FILE=org.apache.log4j.RollingFileAppender <br />
log4j.appender.ROLLING_FILE.Threshold=ERROR <br />
log4j.appender.ROLLING_FILE.File=rolling.log //鏂囦歡浣嶇疆,涔熷彲浠ョ敤鍙橀噺${java.home}銆乺olling.log<br />
log4j.appender.ROLLING_FILE.Append=true&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //true:娣誨姞 false:瑕嗙洊<br />
log4j.appender.ROLLING_FILE.MaxFileSize=10KB&nbsp;&nbsp; //鏂囦歡鏈�澶у昂瀵?br />
log4j.appender.ROLLING_FILE.MaxBackupIndex=1 //澶囦喚鏁?br />
log4j.appender.ROLLING_FILE.layout=org.apache.log4j.PatternLayout <br />
log4j.appender.ROLLING_FILE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n</p>
<p><br />
#搴旂敤浜巗ocket <br />
log4j.appender.SOCKET=org.apache.log4j.RollingFileAppender <br />
log4j.appender.SOCKET.RemoteHost=localhost <br />
log4j.appender.SOCKET.Port=5001 <br />
log4j.appender.SOCKET.LocationInfo=true <br />
# Set up for Log Facter 5 <br />
log4j.appender.SOCKET.layout=org.apache.log4j.PatternLayout <br />
log4j.appender.SOCET.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD]%n%c[CATEGORY]%n%m[MESSAGE]%n%n</p>
<p><br />
# Log Factor 5 Appender <br />
log4j.appender.LF5_APPENDER=org.apache.log4j.lf5.LF5Appender <br />
log4j.appender.LF5_APPENDER.MaxNumberOfRecords=2000</p>
<p># 鍙戦�佹棩蹇楃粰閭歡</p>
<p>log4j.appender.MAIL=org.apache.log4j.net.SMTPAppender <br />
log4j.appender.MAIL.Threshold=FATAL <br />
log4j.appender.MAIL.BufferSize=10 <br />
<a href="&#109;&#97;&#105;&#108;&#116;&#111;&#58;&#108;&#111;&#103;&#52;&#106;&#46;&#97;&#112;&#112;&#101;&#110;&#100;&#101;&#114;&#46;&#77;&#65;&#73;&#76;&#46;&#70;&#114;&#111;&#109;&#61;&#119;&#101;&#98;&#64;&#119;&#119;&#119;&#46;&#119;&#117;&#115;&#101;&#116;&#46;&#99;&#111;&#109;">log4j.appender.MAIL.From=web@www.wuset.com</a> <br />
log4j.appender.MAIL.SMTPHost=www.wusetu.com <br />
log4j.appender.MAIL.Subject=Log4J Message <br />
<a href="&#109;&#97;&#105;&#108;&#116;&#111;&#58;&#108;&#111;&#103;&#52;&#106;&#46;&#97;&#112;&#112;&#101;&#110;&#100;&#101;&#114;&#46;&#77;&#65;&#73;&#76;&#46;&#84;&#111;&#61;&#119;&#101;&#98;&#64;&#119;&#119;&#119;&#46;&#119;&#117;&#115;&#101;&#116;&#117;&#46;&#99;&#111;&#109;">log4j.appender.MAIL.To=web@www.wusetu.com</a> <br />
log4j.appender.MAIL.layout=org.apache.log4j.PatternLayout <br />
log4j.appender.MAIL.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n</p>
<p># 鐢ㄤ簬鏁版嵁搴?<br />
log4j.appender.DATABASE=org.apache.log4j.jdbc.JDBCAppender <br />
log4j.appender.DATABASE.URL=jdbc:mysql://localhost:3306/test <br />
log4j.appender.DATABASE.driver=com.mysql.jdbc.Driver <br />
log4j.appender.DATABASE.user=root <br />
log4j.appender.DATABASE.password= <br />
log4j.appender.DATABASE.sql=INSERT INTO LOG4J (Message) VALUES ('[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n') <br />
log4j.appender.DATABASE.layout=org.apache.log4j.PatternLayout <br />
log4j.appender.DATABASE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n</p>
<p><br />
log4j.appender.A1=org.apache.log4j.DailyRollingFileAppender <br />
log4j.appender.A1.File=SampleMessages.log4j <br />
log4j.appender.A1.DatePattern=yyyyMMdd-HH'.log4j' <br />
log4j.appender.A1.layout=org.apache.log4j.xml.XMLLayout</p>
<p>#鑷畾涔堿ppender</p>
<p>log4j.appender.im = net.cybercorlin.util.logger.appender.IMAppender</p>
<p>log4j.appender.im.host = mail.cybercorlin.net <br />
log4j.appender.im.username = username <br />
log4j.appender.im.password = password <br />
log4j.appender.im.recipient = <a href="&#109;&#97;&#105;&#108;&#116;&#111;&#58;&#99;&#111;&#114;&#108;&#105;&#110;&#64;&#99;&#121;&#98;&#101;&#114;&#99;&#111;&#114;&#108;&#105;&#110;&#46;&#110;&#101;&#116;">corlin@cybercorlin.net</a></p>
<p>log4j.appender.im.layout=org.apache.log4j.PatternLayout <br />
log4j.appender.im.layout.ConversionPattern =[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n</p>
</div>
<img src ="http://www.tkk7.com/lingyu/aggbug/212565.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/lingyu/" target="_blank">鍑屽畤</a> 2008-07-04 12:37 <a href="http://www.tkk7.com/lingyu/archive/2008/07/04/212565.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>Oracle涓垹闄よ〃涓浉鍚岃褰曠殑鍒嗘瀽</title><link>http://www.tkk7.com/lingyu/archive/2006/11/04/79057.html</link><dc:creator>鍑屽畤</dc:creator><author>鍑屽畤</author><pubDate>Sat, 04 Nov 2006 07:05:00 GMT</pubDate><guid>http://www.tkk7.com/lingyu/archive/2006/11/04/79057.html</guid><wfw:comment>http://www.tkk7.com/lingyu/comments/79057.html</wfw:comment><comments>http://www.tkk7.com/lingyu/archive/2006/11/04/79057.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/lingyu/comments/commentRss/79057.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/lingyu/services/trackbacks/79057.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<p>&nbsp;</p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt"><font size="3"><span lang="EN-US"><font face="Times New Roman">Oracle</font></span><span style="font-family: 瀹嬩綋; mso-ascii-font-family: " mso-hansi-font-family:="" new=""  roman?;="" times=""  ? times=""  roman??="">涓垹闄よ〃涓浉鍚岃褰曠殑鍒嗘瀽</span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt"><font size="3"></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt"><font size="3"></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt"><font size="3"></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt"><span style="font-family: 瀹嬩綋; mso-ascii-font-family: " mso-hansi-font-family:="" new=""  roman?;="" times=""  ? times=""  roman??=""><font size="3">鍒嗕袱縐嶆儏鍐碉細</font></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt"></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt"></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 21pt"><font size="3"><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="font-family: 瀹嬩綋; mso-ascii-font-family: " mso-hansi-font-family:="" new=""  roman?;="" times=""  ? times=""  roman??="">錛屽垹闄ゆ墍鏈夊瓧孌靛潎鐩稿悓鐨勮錛?/span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 39pt"><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">create table tablexxx as (select * from tableyyy group by col1,col2,col3&#8230;)</font></font></span></strong><strong></strong></p>
<p>&nbsp;</p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 49.45pt; mso-para-margin-left: 4.71gd"><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">drop table tableyyy</font></font></span></strong><strong></strong></p>
<p>&nbsp;</p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 49.45pt; mso-para-margin-left: 4.71gd"><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">create table tableyyy as (select * from tablexxx)</font></font></span></strong><strong></strong></p>
<p>&nbsp;</p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 49.45pt; mso-para-margin-left: 4.71gd"><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">drop table tablexxx</font></font></span></strong><strong></strong></p>
<p>&nbsp;</p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 21pt"><font size="3"><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="font-family: 瀹嬩綋; mso-ascii-font-family: " mso-hansi-font-family:="" new=""  roman?;="" times=""  ? times=""  roman??="">錛岃〃涓湁</span><span lang="EN-US"><font face="Times New Roman">id(PK)</font></span><span style="font-family: 瀹嬩綋; mso-ascii-font-family: " mso-hansi-font-family:="" new=""  roman?;="" times=""  ? times=""  roman??="">鍒楋紝鍒犻櫎鍏跺畠鎵�鏈夊瓧孌?/span><span style="font-family: 瀹嬩綋; mso-ascii-font-family: " mso-hansi-font-family:="" new=""  roman?;="" times=""  ? times=""  roman??="">鍙栧�肩浉鍚岀殑琛岋細</span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 49.45pt; mso-para-margin-left: 4.71gd"><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">delete b where id not in&nbsp;</font></font></span></strong></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 49.45pt; mso-para-margin-left: 4.71gd"><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">&nbsp;</font></font></span></strong><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">(</font></font></span></strong></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 49.45pt; mso-para-margin-left: 4.71gd"><strong><span lang="EN-US" style="color: green">&nbsp;&nbsp; &nbsp;</span></strong><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">select min(id)&nbsp;</font></font></span></strong><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">from B&nbsp;&nbsp;</font></font></span></strong></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 49.45pt; mso-para-margin-left: 4.71gd"><strong></strong><strong><span lang="EN-US" style="color: green"><font size="3"><font face="Times New Roman">&nbsp;&nbsp;&nbsp; group by col1,col2,col3...</font></font></span></strong></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt 49.45pt; mso-para-margin-left: 4.71gd"><strong></strong><strong><span lang="EN-US" style="color: green"><font face="Times New Roman" size="3">)</font></span></strong></p>
<img src ="http://www.tkk7.com/lingyu/aggbug/79057.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/lingyu/" target="_blank">鍑屽畤</a> 2006-11-04 15:05 <a href="http://www.tkk7.com/lingyu/archive/2006/11/04/79057.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>static灞炴�т笌instance灞炴�?鍒濆鍖栫殑鏃舵満鏄笉鍚岀殑(鏇劇姱鐨勯敊璇?</title><link>http://www.tkk7.com/lingyu/archive/2006/11/04/79009.html</link><dc:creator>鍑屽畤</dc:creator><author>鍑屽畤</author><pubDate>Fri, 03 Nov 2006 17:11:00 GMT</pubDate><guid>http://www.tkk7.com/lingyu/archive/2006/11/04/79009.html</guid><description><![CDATA[
		<font size="2">瀵逛簬涓ょ涓嶅悓鐨勭被灞炴�э紝static灞炴�т笌instance灞炴�э紝鍒濆鍖栫殑鏃舵満鏄笉鍚岀殑銆俰nstance灞炴�у湪鍒涘緩瀹炰緥鐨勬椂鍊欏垵濮嬪寲錛宻tatic灞炴�у湪綾誨姞杞斤紝涔熷氨鏄涓�嬈＄敤鍒拌繖涓被鐨勬椂鍊欏垵濮嬪寲錛屽浜庡悗鏉ョ殑瀹炰緥鐨勫垱寤猴紝涓嶅啀嬈¤繘琛屽垵濮嬪寲</font>
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