Log4j按级别输出到不同文件
log4j按级别输出到不同文件,也类似。
先看配置:
[html]
### set log levels ###
log4j.rootLogger=info,error,info
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.logger.info=info
log4j.appender.info=com.zznode.log.MyAppender
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.info.datePattern='.'yyyy-MM-dd
log4j.appender.info.Threshold = INFO
log4j.appender.info.append=false
log4j.appender.info.File=D:/log4j/info.log
log4j.logger.error=error
log4j.appender.error=com.zznode.log.MyAppender
log4j.appender.error.layout=org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.error.datePattern='.'yyyy-MM-dd
log4j.appender.error.Threshold = ERROR
log4j.appender.error.append=false
log4j.appender.error.File=D:/log4j/error.log
### set log levels ###
log4j.rootLogger=info,error,info
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.logger.info=info
log4j.appender.info=com.zznode.log.MyAppender
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.info.datePattern='.'yyyy-MM-dd
log4j.appender.info.Threshold = INFO
log4j.appender.info.append=false
log4j.appender.info.File=D:/log4j/info.log
log4j.logger.error=error
log4j.appender.error=com.zznode.log.MyAppender
log4j.appender.error.layout=org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.error.datePattern='.'yyyy-MM-dd
log4j.appender.error.Threshold = ERROR
log4j.appender.error.append=false
log4j.appender.error.File=D:/log4j/error.log
测试类:
[java]
import org.apache.log4j.PropertyConfigurator;
import org.apache.log4j.xml.DOMConfigurator;
import com.zznode.test.Test;
/**
* @desc:
* @since Nov 8, 2012
* @author chaisson
*
* <p>
*/
public class Log4jApp {
public void printLog() {
Logger log = Logger.getLogger(Log4jApp.class.getClass());
log.info("测试info");
log.debug("测试debug");
log.error("测试error");
}
public static void main(String[] args) {
//DOMConfigurator.configure("log4j.xml");
PropertyConfigurator.configure("D:/workspace/Test/log4j-new.properties");
Log4jApp app = new Log4jApp();
app.printLog();
// Test test = new Test();
//test.printLog();
}
}
import org.apache.log4j.PropertyConfigurator;
import org.apache.log4j.xml.DOMConfigurator;
import com.zznode.test.Test;
/**
* @desc:
* @since Nov 8, 2012
* @author chaisson
*
* <p>
*/
public class Log4jApp {
public void printLog() {
Logger log = Logger.getLogger(Log4jApp.class.getClass());
log.info("测试info");
log.debug("测试debug");
log.error("测试error");
}
public static void main(String[] args) {
//DOMConfigurator.configure("log4j.xml");
PropertyConfigurator.configure("D:/workspace/Test/log4j-new.properties");
Log4jApp app = new Log4jApp();
app.printLog();
// Test test = new Test();
//test.printLog();
}
}
输出结果有点问题:info.log里面也包含了error的输出。
配置中关键的配置说明是这一句:
log4j.appender.debug.Threshold = INFO
而它的作用是输出INFO级别以上的内容到info.log中,所以info.log文件中包含了ERROR级别的文件。
解决办法是:定义自己的Appender类,继承DailyRollingFileAppender,改写针对Threshold 的设置说明(重写针对级别的比较方法)
源代码
[java]
public boolean isAsSevereAsThreshold(Priority priority) {
return threshold == null || priority.isGreaterOrEqual(threshold);
}
public boolean isAsSevereAsThreshold(Priority priority) {
return threshold == null || priority.isGreaterOrEqual(threshold);
} 重写 isAsSevereAsThreshold(Priority priority)方法
[java]
/**
* @desc:
* @since Apr 17, 2013
* @author chaisson
*
* <p>
*/
public class MyAppender extends DailyRollingFileAppender {
@Override
public boolean isAsSevereAsThreshold(Priority priority) {
//只判断是否相等,而不判断优先级
return this.getThreshold().equals(priority);
}
}
/**
* @desc:
* @since Apr 17, 2013
* @author chaisson
*
* <p>
*/
public class MyAppender extends DailyRollingFileAppender {
补充:综合编程 , 其他综合 ,