记录tomcat服务器开启关闭时间

1、IO流

package com.zy.exercise;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;

/**
 * Application Lifecycle Listener implementation class Mylistener
 *
 */
@WebListener
public class Mylistener implements ServletContextListener {
    public void contextDestroyed(ServletContextEvent sce)  { 

        DestroyedWrite();
        System.out.println("关闭日志写入成功");

    }

    public void contextInitialized(ServletContextEvent sce)  {
        InitializedWrite();
        System.out.println("启动日志写入成功");

    }

    public void InitializedWrite(){
        Date date = new Date();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy:MM:dd HH:mm:ss E");
        String time = sdf.format(date);
        String s=time+"\t执行操作："+"启动服务器"+"\r\n";
        File file = new File("E:\\Tomcat关闭启动日志\\tomcat日志.txt");
        try {
            FileOutputStream fos = new FileOutputStream(file, true);
            byte[] b = s.getBytes();
            fos.write(b);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
    public void DestroyedWrite(){

        Date date = new Date();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy:MM:dd HH:mm:ss E");
        String time = sdf.format(date);
        String s=time+"\t执行操作："+"关闭服务器"+"\r\n";
        File file = new File("E:\\Tomcat关闭启动日志\\tomcat日志.txt");
        try {
            FileOutputStream fos = new FileOutputStream(file, true);
            byte[] b = s.getBytes();
            fos.write(b);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

}

结果

2、使用log4j

log4j.properties文件

log4j.rootLogger=INFO, ServerDailyRollingFile, stdout
log4j.appender.ServerDailyRollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.ServerDailyRollingFile.DatePattern='.'yyyy-MM-dd
log4j.appender.ServerDailyRollingFile.File=D://myLog.log
log4j.appender.ServerDailyRollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.ServerDailyRollingFile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss E} - %m%n
log4j.appender.ServerDailyRollingFile.Append=true

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss E} %p [%c] %m%n

过滤器

package com.zy.filter;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;

import org.apache.log4j.Logger;

/**
 * Servlet Filter implementation class EncodingFile
 */
@WebFilter("/*")
public class EncodingFile implements Filter {
    Logger log = Logger.getLogger(this.getClass());

    public void destroy() {
        log.info("服务器关闭");
    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        /*     /*拦截所有请求，先执行该过滤器
         * */
        chain.doFilter(request, response);//一定放行
    }

    public void init(FilterConfig fConfig) throws ServletException {
        log.info("服务器开启");

    }

}

结果