code: public void loadPropertiesFromSrc() {
  		InputStream in = null;
  		try {
  			LogUtil.writeLog("从classpath: " +SDKConfig.class.getClassLoader().getResource("").getPath()+" 获取属性文件"+FILE_NAME);
  			in = SDKConfig.class.getClassLoader().getResourceAsStream(FILE_NAME);
  			if (null != in) {
  				properties = new Properties();
  				try {
  					properties.load(in);
  				} catch (IOException e) {
  					throw e;
  				}
  			} else {
  				LogUtil.writeErrorLog(FILE_NAME + "属性文件未能在classpath指定的目录下 "+SDKConfig.class.getClassLoader().getResource("").getPath()+" 找到!");
  				return;
  			}
  			loadProperties(properties);
  		} catch (IOException e) {
  			LogUtil.writeErrorLog(e.getMessage(), e);
  		} finally {
  			if (null != in) {
  				try {
  					in.close();
  				} catch (IOException e) {
  					LogUtil.writeErrorLog(e.getMessage(), e);
  				}
  			}
  		}
  	}
docs: 从classpath路径下加载配置参数