log4j的properties详细配置，分级输出日志文件
log4j是很常用的日志类包，在此做一下配置的记录
- 加载jar包和properities配置文件
将 com
mons-logging.jar和logging-log4j.jar放在lib中
将log4j.properties放在src根目录中或者resource中。
- properties具体配置信息
log4j.rootLogger = INFO , info, warn, error, stdout
###控制台输出
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = %d{ABSOLUTE} %5p %c{1}:%L - %m%n
###info级别输出
log4j.logger.info = info
log4j.appender.info = org.apache.log4j.DailyRollingFileAppender
log4j.appender.info.File = ${webroot}/logs/convert_info.log
log4j.appender.info.Append = true
log4j.appender.info.Threshold = INFO
log4j.appender.info.layout = org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
log4j.appender.info.datePattern='.'yyyy-MM-dd
log4j.appender.info.filter.infoFilter = org.apache.log4j.varia.LevelRangeFilter
log4j.appender.info.filter.infoFilter.LevelMin=INFO
log4j.appender.info.filter.infoFilter.LevelMax=INFO
###warn级别输出
log4j.logger.warn = warn
log4j.appender.warn=org.apache.log4j.DailyRollingFileAppender
log4j.appender.warn.File = ${webroot}/logs/convert_warn.log
log4j.appender.warn.Append=true
log4j.appender.warn.Threshold=WARN
log4j.appender.warn.layout=org.apache.log4j.PatternLayout
log4j.appender.warn.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
log4j.appender.warn.datePattern='.'yyyy-MM-dd
log4j.appender.warn.filter.warnFilter=org.apache.log4j.varia.LevelRangeFilter
log4j.appender.warn.filter.warnFilter.LevelMin=WARN
log4j.appender.warn.filter.warnFilter.LevelMax=WARN
###error级别输出
log4j.logger.error = error
log4j.appender.error = org.apache.log4j.DailyRollingFileAppender
log4j.appender.error.File = ${webroot}/logs/convert_error.log
log4j.appender.error.Append = true
log4j.appender.error.Threshold = ERROR
log4j.appender.error.layout = org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
log4j.appender.error.datePattern='.'yyyy-MM-dd
log4j.appender.error.filter.errorFilter=org.apache.log4j.varia.LevelRangeFilter
log4j.appender.error.filter.errorFilter.LevelMin=ERROR
log4j.appender.error.filter.errorFilter.LevelMax=ERROR
- 给webroot变量设置值
private void log4jInitialized(){
String log4jPath = "";
try {
log4jPath = ApplicationInitListener.class.getResource("").toURI().getPath();
log4jPath = log4jPath.substring(0, log4jPath.indexOf("WEB-INF")) + "WEB-INF";
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.setProperty("webroot", log4jPath);
}
在网站应用程序初始化时调用
public void contextInitialized(ServletContextEvent arg0) {
/*初始化日志路径*/
log4jInitialized();
}
- 参考资料
1、网上很多一样号称能够实现分级存储日志的配置，但实际上不是真正的分级存储
http://www.iteye.com/topic/744693
2、真正能够实现分级的而不需要实现编程的配置方法
http://wendal.net/219.html
3、通过编程方式实现分级方法，有了上面的实现方式，不用进行编程，哈
http://blog.csdn.net/projava/article/details/7344839