根据文件名获得properties文件
直接上代码：

package org.commons;import java.net.URL;public class PropertiesUtil {/** *  * @param path *            文件名 * @return 该文件的URL */public static URL findAsResource(String path) {URL url = null;// First, try to locate this resource through the current// context classloader.ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();if (contextClassLoader != null) {url = contextClassLoader.getResource(path);}if (url != null)return url;// Next, try to locate this resource through this class's classloaderurl = PropertiesUtil.class.getClassLoader().getResource(path);if (url != null)return url;// Next, try to locate this resource through the system classloaderurl = ClassLoader.getSystemClassLoader().getResource(path);// Anywhere else we should look?return url;}}