获取项目根路径的简单方法

gistfile1.java

import java.io.File;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;


public class XServletContextListener implements ServletContextListener {

	public static String ROOT;
	
	public void contextDestroyed(ServletContextEvent event) {
		ROOT = event.getServletContext().getRealPath(File.separator);
	}

	public void contextInitialized(ServletContextEvent arg0) {}

}