标签：blog http io ar java sp 文件 div on
首先去apache官网下载http://logging.apache.org/log4j/1.2/download.html
新建一个项目，将log4j-1.2.X.jar加入classpath中。
package lee;
import org.apache.log4j.Logger;
public class testLog {
private static Logger logger = Logger.getLogger(testLog.class);
public static void main(String[] args){
logger.info("ok2");
}
}
在src中新建一个log4j.properties
log4j.rootLogger=INFO,toFile,console
######## \u8F93\u51FA\u5230\u5230\u6587\u4EF6 ##########
log4j.appender.toFile=org.apache.log4j.FileAppender
log4j.appender.toFile.Threshold=INFO
log4j.appender.toFile.layout=org.apache.log4j.PatternLayout
log4j.appender.toFile.file=test.log
######## \u8F93\u51FA\u5230\u5230\u63A7\u5236\u53F0 ##########
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.Threshold=INFO
log4j.appender.console.ImmediateFlush=true
log4j.appender.console.Target=System.err
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss.SSS}] %p [%t] %c{1}.%M(%L) | %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=e:/logs/douban.log
log4j.appender.R.MaxBackupIndex=10
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%d-[HL] %p %t %c - %m%n
下面来具体分析这个配置文件
标签：blog http io ar java sp 文件 div on
原文地址：http://www.cnblogs.com/tuifeideyouran/p/4069414.html
