chat-room/test/TestLog.java

/*
 * Copyright (c) 2019. 黄钰朝
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hyc.wechat.test;

import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;

/**
 * @author <a href="mailto:kobe524348@gmail.com">黄钰朝</a>
 * @description 该类用于演示如何配置和使用log4j日志框架来打印日志信息。
 * @date 2019-05-02 17:12
 */
public class TestLog {
    public static void main(String[] args) {
        // 调用log方法打印日志信息
        log("日志信息");
    }

    /**
     * 打印日志信息的方法
     * @param logInfo 要打印的日志信息
     */
    public static void log(String logInfo){
        // 1. 创建Logger实例，传入当前类的Class对象
        Logger log = Logger.getLogger(TestLog.class);
        
        // 2. 配置Logger，通常需要读取log4j.properties文件来设置日志级别和输出目的地
        // 这里的配置方式是通过PropertyConfigurator类来加载log4j.properties文件
        // PropertyConfigurator.configure("path/to/log4j.properties");
        
        // 3. 使用debug级别打印日志信息
        log.debug(logInfo);
    }
}