web.xml中的<param-value>可以使用变量么？

Question

RT,初始化servlet的时候我希望可以通过配置文件来配置这个loginUsername，请问是否可以？

<servlet>
      <servlet-name>DruidStatView</servlet-name>
      <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
        <init-param>  
            <!-- 用户名 -->  
            <param-name>loginUsername</param-name>  
            <param-value>druid</param-value>  
        </init-param>  
        <init-param>  
            <!-- 密码 -->  
            <param-name>loginPassword</param-name>  
            <param-value>druid</param-value>  
        </init-param>  
    </servlet>
    <servlet-mapping>
      <servlet-name>DruidStatView</servlet-name>
      <url-pattern>/druid/*</url-pattern>
    </servlet-mapping>

Answer 1

代码段没贴好，补上

 <servlet>
      <servlet-name>DruidStatView</servlet-name>
      <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
        <init-param>  
            <!-- 用户名 -->  
            <param-name>loginUsername</param-name>  
            <param-value>druid</param-value>  
        </init-param>  
        <init-param>  
            <!-- 密码 -->  
            <param-name>loginPassword</param-name>  
            <param-value>druid</param-value>  
        </init-param>  
    </servlet>
    <servlet-mapping>
      <servlet-name>DruidStatView</servlet-name>
      <url-pattern>/druid/*</url-pattern>
    </servlet-mapping>