日志配置
一、下载log4j的jar包,放入项目中如果是maven项目就在pom.xml中添加相关的包
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
二、然后配置log4j日志文件
log4j.rootLogger=debug,A1,R
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.Target=System.out
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%5p | %-d{yyyy/MM/dd HH:mm:ss:SSS} | %C:%M:%L | %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=${webapp.root}/WEB-INF/logs/websit.log
log4j.appender.R.MaxFileSize=20MB
log4j.appender.R.MaxBackupIndex=100
log4j.appender.R.Threshold=ALL
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%5p | %-d{yyyy/MM/dd HH:mm:ss:SSS} | %C:%M:%L | %m%n
### show sql ###
log4j.logger.com.ibatis=debug
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=debug
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=debug
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=debug
log4j.logger.java.sql.Connection=debug
log4j.logger.java.sql.Statement=debug
log4j.logger.java.sql.PreparedStatement=debug
则tomcat里webapp下该项目的web-inf/log/websit.log中就会出现实时日志,websit.log必须事先有才可以,不然找不到文件,无法将日志成功输出。
三、在web.xml中配置
<!-- 配置日志 -->
<context-param>
<param-name>log4jConfigLocation</param-name>
<!-- 日志配置文件的位置 -->
<param-value>classpath:log4j.properties</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<!-- 配置日志完毕 -->
完成!