Java自定义记录器:记录标准或/和最佳实践 [英] Java custom logger: logging standards or/and best practices

问题描述

我正在开发一个框架，我希望jar尽可能轻巧并且尽可能独立.

I am developing a framework and I want the jar to be light weight and independent as much as it can be.

所以我写了一个日志类:

So I wrote a logging class:

import java.util.Date;
import java.util.Properties;

public class Logger {

    private static final Logger me = new Logger();
    private static boolean info = false;
    private static boolean debug = false;
    private static boolean error = false;
    private static String className = null;

    public static Logger getInstance(Class<?> clazz) {  
        className = clazz.getCanonicalName();
        try {
            Properties props = new CustProps().load(clazz);
            if(props.get(CustProps.NAME_LOG_MODE) != null) {
                String devMode = props.getProperty(CustProps.NAME_LOG_MODE)
                                   .toLowerCase();
                if("info".equals(devMode)) {
                    info = true;
                    debug = true;
                } else if("debug".equals(devMode)) {
                    debug = true;
                } 
            }
        } catch (Exception e) {
            // debug is error by default
        }

        error = true;
        return me;
    }

    public void logError(Object msg) {
        if(isError()) {
            System.out.println(new Date().toString()
              + " ERROR ["+Logger.className+"] - " + msg);
        }
    }

    public void logDebug(Object msg) {
        if(isDebug()) {
            System.out.println(new Date().toString()
              + " DEBUG ["+Logger.className+"] - " + msg);
        }
    }

    public void logInfo(Object msg) {
        if(isInfo()) {
            System.out.println(new Date().toString()
              + " INFO ["+Logger.className+"] - " + msg);
        }
    }

    public boolean isInfo() { return Logger.info; }

    public boolean isDebug() { return Logger.debug; }

    public boolean isError() { return Logger.error; }

}

• 什么是使日志记录更好的最佳实践?
• 让自己的记录器值得吗?
• 使用此记录器会使我的框架比选择现有的东西(例如log4j)更糟吗?
• What are the best practices to make this logging better?
• Is making your own logger even worth it?
• Will the use of this logger make my framework worse than choosing something existing (like log4j)?

推荐答案

您不喜欢java.util.logging.Logger吗?它包含在JDK中，您不需要其他任何东西.

Don't you like java.util.logging.Logger? It is included into JDK, you don't need anything else.

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