spring读取属性文件

bean.xml:
<bean id="propertyConfigurer" class="BundlePropertiesLoader">
<property name="bundlePropertyFileNames">
<list>
<value>test.properties</value>
</list>
</property>
</bean>

/**
* spring读取属性文件
*/
public class BundlePropertiesLoader extends PropertyPlaceholderConfigurer
{
    public void setBundlePropertyFileNames( String[] fileNames )
    {
        InputStream in = null;
        Properties pts = null;

        try
        {
            // 读取spring文件中配置的属性文件名称
            for ( String fileName : fileNames )
            {
                in = BundlePropertiesLoader.class.getClassLoader()
                        .getResourceAsStream( fileName );
                pts = new Properties();

                // 加载属性文件
                pts.load( in );
              super.setProperties( pts );
            }
        } catch ( Exception e )
        {      
        }

        finally

       {

          if (null != in)

         {

               in.close();

         }

       }
    }