Websphere部署项目，使用Log4j指定Log信息存放路径

今天部署一个JSF项目到Websphere上，因为本机开发都是用Tomcat，所以Log4j.properties文件信息如下：

#
# $Revision: 1.2 $
# $Date: 2010/07/19 03:29:48 $
#
log4j.rootLogger=INFO, DefLog

 #catalina.home 为读取系统环境变量的值
log4j.appender.DefLog=org.apache.log4j.RollingFileAppender
log4j.appender.DefLog.File=${catalina.home}/logs/flow.log
log4j.appender.DefLog.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.DefLog.maxBackupIndex=10
log4j.appender.DefLog.maxFileSize=10MB
log4j.appender.DefLog.Append=true
log4j.appender.DefLog.layout=org.apache.log4j.PatternLayout
log4j.appender.DefLog.layout.ConversionPattern=%5p [%t] [%d] (%c) - %m%n

 

然后用Ant打包项目生成war档部署在Webphere上，输入地址访问报500内部错误，然后查找log信息，费了好大的劲在以下目录下找到了log档：

（安装目录）\IBM\WebSphere\AppServer\profiles\AppSrv01\logs\server1    SystemOut.log

 

路径比较难找，所以为了方便起见，我想指定简单的log信息路径如：D:\flow.log，该怎么办呢？

 

1. 先改动Log4j的配置

#
# $Revision: 1.2 $
# $Date: 2010/07/19 03:29:48 $
#
log4j.rootLogger=INFO, DefLog

log4j.appender.DefLog=org.apache.log4j.RollingFileAppender
log4j.appender.DefLog.File=D:/logs/flow.log
log4j.appender.DefLog.DatePattern='.'yyyy-MM-dd'.log'
log4j.appender.DefLog.maxBackupIndex=10
log4j.appender.DefLog.maxFileSize=10MB
log4j.appender.DefLog.Append=true
log4j.appender.DefLog.layout=org.apache.log4j.PatternLayout
log4j.appender.DefLog.layout.ConversionPattern=%5p [%t] [%d] (%c) - %m%n

 

在WEB-INF所在的路径建立文件夹：META-INF/service，再建立名为org.apache.commons.logging.LogFactory 的文件，其内容为

org.apache.commons.logging.impl.LogFactoryImpl

 

 在web.xml文件里添加以下代码：

<listener>
	<listener-class>com.system.Log4jInit</listener-class>
</listener>

 Log4jInit.java代码如下：

package com.system;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.impl.Log4JLogger;
import org.apache.log4j.PropertyConfigurator;

public class Log4jInit implements ServletContextListener {

	public void contextInitialized(ServletContextEvent event) {
		String path = event.getServletContext().getRealPath("WEB-INF/classes/log4j.properties");
		LogFactory.getFactory().setAttribute("org.apache.commons.logging.Log", Log4JLogger.class.getName());
		PropertyConfigurator.configure(path);

		// System.out.println("log properties path : " + path);
		// Log logger = LogFactory.getLog(this.getClass());
		// logger.error("Log4jInit initial.........");
	}

	public void contextDestroyed(ServletContextEvent arg0) {
	}

}