web.xml 增加

 <context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>/WEB-INF/log4j.properties</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
 

  </listener>

WEB-INF目錄下新建 log4j.properties

log4j.rootLogger=DEBUG,console,FILE

log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.threshold=INFO
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} [%5p] - %c -%F(%L) -%m%n

log4j.appender.FILE=org.apache.log4j.RollingFileAppender
log4j.appender.FILE.Append=true
log4j.appender.FILE.File=/tmp/logs/log4jtest.log
log4j.appender.FILE.Threshold=INFO
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} [%5p] - %c -%F(%L) -%m%n
log4j.appender.FILE.MaxFileSize=10MB
 

註意

log4j.appender.FILE.File=/tmp/logs/log4jtest.log  
windows 請更改路徑

添加log 

package com.example.controller;

import com.example.dao.UserDao;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
 
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

/**
 * Created by cwliu on 2017/6/17.
 */



@Controller
@RequestMapping(value = "/user", method = RequestMethod.GET)
public class HomeController {

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

    @RequestMapping(value = "/list", method = RequestMethod.GET)
    public String printHello(Model model) {
        model.addAttribute("userList", new UserDao().GetUsers());


        logger.info("home controller ...");

        return "index";
    }


}

查看日誌打印

日誌文件

springmvc log4j 配置