package com.briup.common.servlet;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import org.apache.log4j.PropertyConfigurator;public class Log4JServlet extends HttpServlet {	public void init() throws ServletException {		String path = getServletContext().getRealPath("/");		// getInitParameter("propfile")方法從web.xml文件中讀取Log4J配置文件的名字"profile"。		String propfile = path + getInitParameter("propfile");		PropertyConfigurator.configure(propfile);	}}