sspplog4j.java

来自「使用JSP+Servlet+Hibernate+Struts实现的一个学生软件发」· Java 代码 · 共 38 行

package edu.neu.sspp;

import org.apache.log4j.Level;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.apache.log4j.Priority;

public class SSPPLog4j {
	//singleton设计模式
	private static SSPPLog4j impl;
	static {
		impl = new SSPPLog4j();
	}
	private Logger log4j;
	//强化singleton
	private SSPPLog4j() {
		log4j = LogManager.getLogger(SSPPLog4j.class);
	}
	
	public static SSPPLog4j getInstance() {
		return impl;
	}
	
	public void log(String level, Object msg) {
		log(level, msg, null);
	}
	
	public void log(String level, Throwable e) {
		log(level, null, e);
	}
	
	public void log(String level, Object msg, Throwable e) {
		if(log4j != null) {
			log4j.log((Priority)Level.toLevel(level), msg, e);
		}
	}
}