读取properties文件工具类

import java.io.IOException;import java.io.InputStream;import java.util.Properties;public class PropertiesUtil {   /**    * 在properties文件中读取参数    * @param propPath properties文件路径    * @param param 参数名    * @return    */   public static String getParamInProp(String propPath, String param){      Properties prop = new Properties();      InputStream in = PropertiesUtil.class.getClassLoader().getResourceAsStream(propPath);      try {         prop.load(in);         return prop.getProperty(param).trim();      } catch (IOException e) {         e.printStackTrace();         return "properties file load failed";      }   }   }