我建立了一個(gè)demo項(xiàng)目,目錄結(jié)構(gòu)如下:類的代碼:package com.asiainfo.firstmaven.helloworld;import org.apache.logging.log4j.LogManager;import org.apache.logging.log4j.Logger;public class HelloWorld {    String sayHello() {        return "Hello World";    }    public static void main(String[] args) {        Logger logger = LogManager.getLogger(HelloWorld.class);        logger.debug("I am a debug");        logger.error("I am a error");        logger.warn("I am a warn");        logger.info("I am a info");        System.out.println(new HelloWorld().sayHello());    }}        運(yùn)行總是報(bào)錯(cuò):ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console.是哪里還需要配置嗎? 跪求解答..