<bean id="propertyConfigurer"   
      class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
      <list>
         <value>classpath:conf/web-service.properties</value>
      </list>
    </property>
  </bean> 

  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Properties;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
   
  public class PropUtils {
    private static Logger logger = LoggerFactory.getLogger(PropUtils.class);
    private static Properties properties;
    static {
      InputStream in = null;
      try {
        properties = new Properties();
        in = PropUtils.class.getResourceAsStream("/conf/web-service.properties");
        properties.load(in);
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
    public static String getProp(String key){
      return properties.getProperty(key);
    }
  }

String maxWait = PropUtils.getProp("maxWait_2");