log4j configuration

Logging naturally is very important, but I am afraid to remember slf4j and log4j, such as the configuration of the log framework is very few people, this thing is not difficult, but only after the configuration is rarely to move it, the development of new projects are usually copied from other projects, or reference to the documentNeedless to say, say

Today, I made a one-day remote log configuration. Due to the lack of documents and strategies, debugging was very difficult. Most of the items searched on the Internet are only code-based and do not describe the principles at all. Finally, the configuration is successful, and now the process is organized as follows. Summary: socket-based remote log is composed of the server and client. The server needs to s

The website is about to be released. To track some logs, you need to use log4j. So I studied the configuration of log4j. First, paste a configuration source file log4j. properties. log4j.rootLogger=DEBUG, CONSOLE, FILE## for consolelog4j.appender.CONSOLE=org.apache.log4j.Co

In the selection of slf4j-api-1.7.7.jar + slf4j-log4j12-1.7.7.jar + log4j-1.2.17.jar output (the premise is that there is a corresponding configuration file log4j. properties, put in the root directory, usually SRC folder) to the file logs. log and errors. Log 1. The basic format is as follows: # Configure root loggerlog4j. rootlogger = [level], appendername1, a

}" for jar in $lib _path/*.jardoif ["$CLASSPATH" = ""];Thenclasspath= $jarelseCLASSPATH = $CLASSPATH: $jarfidoneexport classpath= $CLASSPATHecho "java ${main_class} \" [Email Protected]\ ""4. Right-click Project-debug as-maven assembly:assemblyThe output log is packaged successfully.Four. Testing1. Unzip the zip file, the folder structure is as follows, all files are present:2. Enter the bin and run the Start.bat (the JRE environment needs to be installed in the running environment)3. The result

The log4j configuration file (Configuration file) is used to set the level, the repository, and the layout of the logger, and it can be set in key=value format or in XML format information. By configuring, you can create a log4j running environment. The log4j

4Basic log4j Configuration Log4j consists of three important components: loggers, appenders, and layouts, which respectively indicate the priority of log information, the output destination of log information, and the output format of log information. Supports key = value format setting or XML format setting. L the priority of log information ranges from high to

% C % x-% m % N # apply to socketlog4j. appender. socket = org. apache. log4j. rollingfileappenderlog4j. appender. socket. remotehost = localhostlog4j. appender. socket. port = 5001log4j. appender. socket. locationinfo = true # set up for log facter 5log4j. appender. socket. layout = org. apache. log4j. patternlayoutlog4j. appender. socet. layout. conversionpattern = [start] % d {date} [date] % N % P [Prio

In emphasizing reusable component development today, in addition to developing a reusable log operation class from beginning to end, Apache provides us with a powerful log-handling package-log4j.Log4j is an open source project for Apache, by using log4j, we can control the destination of log information delivery is console, file, GUI component, even interface server, NT Event recorder, UNIX syslog daemon, etc. We can also control the output format of

# -- Log4j. rootlogger: output the log information with the info level to the stdout and file destinations. The definitions of stdout and file can be named in the following code. Levels can be divided into off, fatal, error, warn, info, debug, and all. If off is configured, no information is displayed. If Info is configured, only info, warn is displayed, error Log information, while debug information is not displayed

: once where daysThe programmer decided not to display the System.out.println, but to comment out the spam statements on a line. If where daysIf you want to debug variable values, you can only remove these comments in a row to recover the SYSTEM.OUT.PRINTLN statement. Using log4j can be a good treatment for similar situations. Log4j use method The following is a log4j