I´m developing a Web Application, using Glassfish, and I´m migrating from log4J to log4J2.
FIRST QUESTION:
I´m using this log4j2.xml:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="debug">
<Properties>
<Property name="log-path">mypath</Property>
</Properties>
<Appenders>
<RollingFile name="file-log" fileName="${log-path}/mylog.log"
filePattern="${log-path}/mylog-%d{yyyy-MM-dd}.log">
<PatternLayout>
<pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n</pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1" modulate="true"/>
</Policies>
</RollingFile>
<Console name="console" target="SYSTEM_OUT">
<PatternLayout pattern="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"/>
</Console>
</Appenders>
<Loggers>
<Root level="info" additivity="false">
<appender-ref ref="console"/>
</Root>
</Loggers>
</Configuration>
Where do I put this information. In src, in a package? I don t know where to put it, because my app do not recognize it.
SECOND QUESTION:
If i want to introduce the information of logged user and sessionId, can I put this in my xml file?
THIRD QUESTION:
If I put this on my code:
log.info("message"), what´s the prupose to have a root level? It´s not me that determine which level is on my log, on different messages?
Related
I'm having a problem with the log4j2.xml configuration file not being found after a change to the configuration file was made. Before the change the file was found and the simple logging was working. I haven't used log4j in a few years and have been making use of the java.util logging for application logging on the weblogic server so I decided to put log4j to use again.
I first create a simple configuration file, tested it out and everything was working just fine.
The original test configuration.
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Properties>
<Property name="filename">/opt/www/log</Property>
</Properties>
<Appenders>
<RollingFile name="StipLog" fileName="${filename}/stip-log.log" filePattern="${filename}/stip-log-%d{yyyy-MM-dd}.log">
<PatternLayout>
<pattern>
[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"
</pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1" modulate="true" />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<Logger name="stip-debug" level="debug" additivity="true">
<appender-ref ref="StipLog" level="debug"/>
</Logger>
<Root level="debug">
<AppenderRef ref="StipLog"/>
</Root>
</Loggers>
<Configuraiton>
Runing this code snippet in a backing bean for a page worked just fine with the original configuration file.
LOGGER.info("APP Home Page: User: ".concat(userInfoBean.getUserName()));
LOGGER.debug("DEBUG message!");
LOGGER.error("ERROR Message", new NullPointerException("I AM NULL"));
That all went well so I decided to try and configure different appenders for each log level I wanted to use. I changed the original configuration to the following.
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Properties>
<!-- For local logging change this porperty to a local directory. ex: C:\\Public\\log -->
<Property name="LOGGING_ROOT">C:/Public/log</Property>
</Properties>
<Appenders>
<!-- file appenders -->
<RollingFile name="debugLog" fileName="${LOGGING_ROOT}/app-debug.log" filePattern="${LOGGING_ROOT}/app-debug-%d{yyyy-MM-dd}-%i.log">
<LevelRangeFilter minLevel="DEBUG" maxLevel="DEBUG" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout>
<pattern>
[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"
</pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1" modulate="true" />
</Policies>
<DefaultRolloverStrategy max="10"/>
</RollingFile>
<RollingFile name="infoLog" fileName="${LOGGING_ROOT}/app-info.log" filePattern="${LOGGING_ROOT}/app-info-%d{yyyy-MM-dd}-%i.log">
<LevelRangeFilter minLevel="INFO" maxLevel="INFO" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout>
<pattern>
[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"
</pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1" modulate="true" />
</Policies>
<DefaultRolloverStrategy max="10"/>
</RollingFile>
<RollingFile name="errorLog" fileName="${LOGGING_ROOT}/app-error.log" filePattern="${LOGGING_ROOT}/app-error-%d{yyyy-MM-dd}-%i.log">
<LevelRangeFilter minLevel="ERROR" maxLevel="ERROR" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout>
<pattern>
[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"
</pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1" modulate="true" />
</Policies>
<DefaultRolloverStrategy max="10"/>
</RollingFile>
<!-- console appender -->
<Console name="console" target="SYSTEM_OUT">
<PatternLayout pattern="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n" />
</Console>
</Appenders>
<Loggers>
<Logger name="debug-logger" level="debug" additivity="true">
<appender-ref ref="debugLog"/>
</Logger>
<Logger name="info-logger" level="info" additivity="true">
<appender-ref ref="infoLog"/>
</Logger>
<Logger name="error-logger" level="error" additivity="true">
<appender-ref ref="errorLog"/>
</Logger>
<Root level="all">
<AppenderRef ref="console"/>
<AppenderRef ref="debugLog"/>
<AppenderRef ref="infoLog"/>
<AppenderRef ref="errorLog"/>
</Root>
</Loggers>
</Configuration>
After changing the configuration file I am now getting the following error message when the application is deploying.
ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console. Set system property 'org.apache.logging.log4j.simplelog.StatusLogger.level' to TRACE to show Log4j2 internal initialization logging.
The configuration file is in the same location as it was when the loggin was working, it's in the source default package. I moved it WEB-INF to see if that would make a difference but the same problem remains. I even changed it back to the original configuration and still have the same problem.
I'm upgrading my web app to include log4j2 and having difficulty configuring. I have my log4j2.xml file located in WEB-INF/classes folder. I want log4j2 to write to my log file named jed.log in WEB-INF/logs/ folder. My xml file looks like so:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
</Console>
<File name="MyFile" fileName="/WEB-INF/logs/jed.log" immediateFlush="false" append="false">
<PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</File>
</Appenders>
<Loggers>
<Root level="debug">
<AppenderRef ref="Console" />
<AppenderRef ref="MyFile"/>
</Root>
</Loggers>
</Configuration>
Log4j2 is definitely logging to the console so I know that part is working, but I can't seem to make it see the log file. For the fileName attribute I've tried setting it to "/WEB-INF/logs/jed.log", "WEB-INF/logs/jed.log", "../logs/jed.log". Nothing seems to work.
Currently, I am moving the server and upgrade the jetty from 9.2 to 9.3. But unfortunately, I found that the logging file doesn't role automatically in 9.3, however, it was working fine in jetty 9.2.
The file name only changed when I restart the server.
I am thinking, do I miss some config in jetty 9.3? Thanks.
1, In 9.3.16
2, Previously in jetty 9.2.
My log4j2.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="OFF">
<appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} [%M](%L) - %msg%n"/>
</Console>
<File name="log" fileName="log/test.log" append="false">
<PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n"/>
</File>
<RollingFile name="RollingFile" fileName="log/app.log"
filePattern="log/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout pattern="%d{yyyy-MM-dd 'at' HH:mm:ss z} %-5level %class{36} %L %M - %msg%xEx%n"/>
<SizeBasedTriggeringPolicy size="50MB"/>
</RollingFile>
</appenders>
<loggers>
<root level="info">
<appender-ref ref="RollingFile"/>
<appender-ref ref="Console"/>
</root>
</loggers>
</configuration>
I'm getting the following error when I run my Log4j code :
2015-07-04 19:08:04,385 ERROR Appender AuditLogger cannot be located. Route ignored
I'm trying to use the RoutingAppender (I learned about it from this question ).
My log4j config files looks like this :
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</Console>
<File name="MyFile" fileName="OutputLogFile.log" immediateFlush="false" append="false">
<PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</File>
<Routing name="Routing">
<Routes pattern="$${sd:type}">
<Route>
<RollingFile name="Rolling-${sd:type}" fileName="${sd:type}.log"
filePattern="${sd:type}.%i.log.gz">
<PatternLayout>
<pattern>%d %p %c{1.} [%t] %m%n</pattern>
</PatternLayout>
<SizeBasedTriggeringPolicy size="500" />
</RollingFile>
</Route>
<Route ref="AuditLogger" key="Audit"/>
</Routes>
</Routing>
</Appenders>
<Loggers>
<Root level="all">
<Appender-Ref ref="Console"/>
<Appender-Ref ref="MyFile"/> <!-- added_in now -->
</Root>
</Loggers>
</Configuration>
And my code is just a simple client/server pair (with some logger.debug("xyz") code spread throughout) .
thanks
I am trying log4j2 to create log file to the system I am developing right, I have followed the instruction on their site and there is no error occurred when I run it, but the log is not saved on where I set it (ex. "D:\logs\app.log").
Here is My log4j.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="OFF">
<appenders>
<RollingFile name="MyRollingFile" fileName="D:/logs/app.log"
filePattern="logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<pattern>%d %p %C{1.} [%t] %m%n</pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="250 MB"/>
</Policies>
<DefaultRolloverStrategy max="20"/>
</RollingFile>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</Console>
</appenders>
<loggers>
<logger name="Log_RollingFile" level="TRACE" additivity="false">
<appender-ref ref="MyRollingFile"/>
</logger>
<root level="ERROR">
<appender-ref ref="Console"/>
</root>
</loggers>
</configuration>
I tried to :
delete app.log to see if my configuration (D:\logs\app.log) works. When I run the application it creates app.log so I think it means that it sees the configuration and the only thing is it is NOT SAVING the log.info that I did in java application
Change root level to "TRACE", and it prints the log.info.
[EDIT:]
I have also these libraries on my classpath
log4j-api-2.0-beta3.jar
log4j-core-2.0-beta3.jar
Am I missing something on RollingFile configuration or a library (maybe)?
Thanks in advance.
Your logger name is incorrect.
As explained in the configuration instructions you linked to, the logger should be named according to the package/classes you wish to capture logging for.
In their example the logger named com.foo.Bar would log everything from the Bar class in package com.foo with TRACE level.