logDemo

package com.log;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;

public class LogServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    private Logger logger = Logger.getLogger(this.getClass());

    public LogServlet() {
        super();
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        logger.info("Log Test");
        logger.error("log error test!");
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doGet(request, response);
    }

}

log4j.rootLogger = debug ,  stdout ,  D ,  E

log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern =  %d{ABSOLUTE} [%5p] %c{1}:[%L] - %m%n

log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = H:\JavaWeb/log1.log
#log4j.appender.D.File = app.log
#log4j.appender.D.File = ${log4jdir}/WEB-INF/logs/log_
log4j.appender.D.DatePattern=yyyy-MM-dd'.log'
log4j.appender.D.Append = true
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.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File = H:\JavaWeb/logs/error_
log4j.appender.E.DatePattern=yyyy-MM-dd'.log'
log4j.appender.E.Append = true
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

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    version="3.0">
    <display-name>LogServletExample</display-name>

    <servlet>
        <servlet-name>logDemo</servlet-name>
        <servlet-class>com.log.LogServlet</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>logDemo</servlet-name>
        <url-pattern>/logDemo</url-pattern>
    </servlet-mapping>

</web-app>