I have used log4j before with the property file configuration. For this new project, I have the XML configuration. The console output seems to be fine. Any changes on log level and layout will reflect on log messages on the console right away.
I, however, can't get any log file for some reasons. To my understanding, to use a log file, I need to use the [email protected] class and what is the name is important. The followings are the xml configuration and the dtd. Can someone tell me what is wrong? <?xml version="1.0" encoding="UTF-8"?> <!-- <!DOCTYPE log4j:configuration PUBLIC "-//LOGGER" "log4j.dtd"> --> <!DOCTYPE log4j:configuration PUBLIC "-//log4j/log4j Configuration//EN" "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/";> <!-- <log4j:configuration debug="true"> --> <!-- Appenders --> <appender name="console" class="org.apache.log4j.ConsoleAppender"> <param name="Target" value="System.out" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%-5p: %c{1}:%L - %m%n" /> </layout> </appender> <appender name="file" class="org.apache.log4j.RollingFileAppender"> <param name="maxFileSize" value="100KB" /> <param name="maxBackupIndex" value="5" /> <param name="File" value="c:\myproj\myapp\logs\mylog.log" /> <param name="Append" value="true" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/> </layout> </appender> <!-- Application Loggers --> <logger name="com.mycom.myapp"> <level value="debug" /> </logger> <!-- 3rdparty Loggers --> ... <!-- Root Logger --> <root> <priority value="warn" /> <appender-ref ref="console" /> </root> </log4j:configuration> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <?xml version="1.0" encoding="UTF-8" ?> <!-- A configuration element consists of optional renderer elements,appender elements, categories and an optional root element. --> <!ELEMENT log4j:configuration (renderer*, appender*,(category|logger)*,root?, categoryFactory?)> <!-- The "threshold" attribute takes a level value such that all --> <!-- logging statements with a level equal or below this value are --> <!-- disabled. --> <!-- Setting the "debug" enable the printing of internal log4j logging --> <!-- statements. --> <!-- By default, debug attribute is "null", meaning that we not do touch --> <!-- internal log4j logging settings. The "null" value for the threshold --> <!-- attribute can be misleading. The threshold field of a repository --> <!-- cannot be set to null. The "null" value for the threshold attribute --> <!-- simply means don't touch the threshold field, the threshold field --> <!-- keeps its old value. --> <!ATTLIST log4j:configuration xmlns:log4j CDATA #FIXED "http://jakarta.apache.org/log4j/"; threshold (all|debug|info|warn|error|fatal|off|null) "null" debug (true|false|null) "null" > <!-- renderer elements allow the user to customize the conversion of --> <!-- message objects to String. --> <!ELEMENT renderer EMPTY> <!ATTLIST renderer renderedClass CDATA #REQUIRED renderingClass CDATA #REQUIRED > <!-- Appenders must have a name and a class. --> <!-- Appenders may contain an error handler, a layout, optional parameters --> <!-- and filters. They may also reference (or include) other appenders. --> <!ELEMENT appender (errorHandler?, param*, layout?, filter*, appender-ref*)> <!ATTLIST appender name ID #REQUIRED class CDATA #REQUIRED > <!ELEMENT layout (param*)> <!ATTLIST layout class CDATA #REQUIRED > <!ELEMENT filter (param*)> <!ATTLIST filter class CDATA #REQUIRED > <!-- ErrorHandlers can be of any class. They can admit any number of --> <!-- parameters. --> <!ELEMENT errorHandler (param*, root-ref?, logger-ref*, appender-ref?)> <!ATTLIST errorHandler class CDATA #REQUIRED > <!ELEMENT root-ref EMPTY> <!ELEMENT logger-ref EMPTY> <!ATTLIST logger-ref ref IDREF #REQUIRED > <!ELEMENT param EMPTY> <!ATTLIST param name CDATA #REQUIRED value CDATA #REQUIRED > <!-- The priority class is org.apache.log4j.Level by default --> <!ELEMENT priority (param*)> <!ATTLIST priority class CDATA #IMPLIED value CDATA #REQUIRED > <!-- The level class is org.apache.log4j.Level by default --> <!ELEMENT level (param*)> <!ATTLIST level class CDATA #IMPLIED value CDATA #REQUIRED > <!-- If no level element is specified, then the configurator MUST not --> <!-- touch the level of the named category. --> <!ELEMENT category (param*,(priority|level)?,appender-ref*)> <!ATTLIST category class CDATA #IMPLIED name CDATA #REQUIRED additivity (true|false) "true" > <!-- If no level element is specified, then the configurator MUST not --> <!-- touch the level of the named logger. --> <!ELEMENT logger (level?,appender-ref*)> <!ATTLIST logger name ID #REQUIRED additivity (true|false) "true" > <!ELEMENT categoryFactory (param*)> <!ATTLIST categoryFactory class CDATA #REQUIRED> <!ELEMENT appender-ref EMPTY> <!ATTLIST appender-ref ref IDREF #REQUIRED > <!-- If no priority element is specified, then the configurator MUST not --> <!-- touch the priority of root. --> <!-- The root category always exists and cannot be subclassed. --> <!ELEMENT root (param*, (priority|level)?, appender-ref*)> <!-- ==================================================================== --> <!-- A logging event --> <!-- ==================================================================== --> <!ELEMENT log4j:eventSet (log4j:event*)> <!ATTLIST log4j:eventSet xmlns:log4j CDATA #FIXED "http://jakarta.apache.org/log4j/"; version (1.1|1.2) "1.2" includesLocationInfo (true|false) "true" > <!ELEMENT log4j:event (log4j:message, log4j:NDC?, log4j:throwable?, log4j:locationInfo?) > <!-- The timestamp format is application dependent. --> <!ATTLIST log4j:event logger CDATA #REQUIRED level CDATA #REQUIRED thread CDATA #REQUIRED timestamp CDATA #REQUIRED > <!ELEMENT log4j:message (#PCDATA)> <!ELEMENT log4j:NDC (#PCDATA)> <!ELEMENT log4j:throwable (#PCDATA)> <!ELEMENT log4j:locationInfo EMPTY> <!ATTLIST log4j:locationInfo class CDATA #REQUIRED method CDATA #REQUIRED file CDATA #REQUIRED line CDATA #REQUIRED > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
