服务器端的web.xml配置文件：prefixLen值为13。

src/main/webapp/WEB-INF/web.xml

    <servlet-class>org.jfw.web.servlet.core.FilenameConfigServlet</servlet-class>
    <init-param>
      <param-name>prefixLen</param-name>
      <param-value>6</param-value>
      <param-value>13</param-value>
    </init-param>
    <init-param>
      <param-name>viewType</param-name>