您的位置:首页 > 编程语言 > Java开发

JavaEE SSH框架整合(四) 日志处理Spring结合 log4j、slf4j [转]

2015-12-12 11:19 766 查看
1. 加入log4j和slf4j的jar包

2. web.xml:

[html] view plaincopyprint?





<context-param>

<!--log4j配置地址 -->

<param-name>log4jConfigLocation</param-name>

<!-- <param-value>/WEB-INF/classes/log4j.properties</param-value> -->

<param-value>classpath:log4j.properties</param-value>

</context-param>

<context-param>

<!-- log4j 配置扫描刷新间隔 可以不用 -->

<param-name>log4jRefreshInterval</param-name>

<param-value>10000</param-value>

</context-param>

<!-- spring里的log4j配置监听器 -->

<listener>

<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>

</listener>

3. src/log4j.properties:

[plain] view plaincopyprint?





### set log levels ###

log4j.rootLogger = debug,stdout,D,E

### 输出到控制台 ###

log4j.appender.stdout = org.apache.log4j.ConsoleAppender

log4j.appender.stdout.Target = System.out

log4j.appender.stdout.Threshold = INFO

log4j.appender.stdout.layout = org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern = %d{ABSOLUTE} %5p %c{1}:%L - %m%n

log4j.appender.stdout.Encoding=UTF-8

### 输出到日志文件 ###

log4j.appender.D = org.apache.log4j.DailyRollingFileAppender

log4j.appender.D.File = ${ssh}WEB-INF/logs/debug.log

log4j.appender.D.file.MaxFileSize=500KB

log4j.appender.D.Append = true

##输出DEBUG级别以上的日志

log4j.appender.D.Threshold = DEBUG

log4j.appender.D.layout = org.apache.log4j.PatternLayout

log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

log4j.appender.D.Encoding=UTF-8

### 保存异常信息到单独文件 ###

log4j.appender.E = org.apache.log4j.DailyRollingFileAppender

## 异常日志文件名

log4j.appender.E.File = ${ssh}WEB-INF/logs/error.log

log4j.appender.E.file.MaxFileSize=500KB

log4j.appender.E.Append = true

## 只输出ERROR级别以上的日志!!!

log4j.appender.E.Threshold = ERROR

log4j.appender.E.layout = org.apache.log4j.PatternLayout

log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

log4j.appender.E.Encoding=UTF-8

配置info级输出到控制台,debug和error 都输出到对应文件中。

4. 使用log对象

[java] view plaincopyprint?





import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import com.stone.action.DefaultAction;

public class LogUtil {

//使用slf4j创建日志对象,好处时,以后更换为其它日志工具时,只要修改配置文件,不用修改代码

private static Logger logger = LoggerFactory.getLogger(LogUtil.class);

//使用log4j创建日志对象

// private org.apache.log4j.Logger logger = org.apache.log4j.Logger.getLogger(getClass());

public static void error(String message) {

logger.error(message);

}

public static void debug(String message) {

logger.debug(message);

}

public static void info(String message) {

logger.info(message);

// org.apache.log4j.Logger.getLogger(LogUtil.class).info(message);

}

}
内容来自用户分享和网络整理,不保证内容的准确性,如有侵权内容,可联系管理员处理 点击这里给我发消息
标签: