jsp中通过部署标识符方式配置filter、listener、servlet

一、jsp中filter的配置

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<filter>
        <filter-name>setCharacterEncodingFilter</filter-name>
        <filter-class>org.apache.catalina.filters.SetCharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>

        </init-param>

</filter>

<filter-mapping>
        <filter-name>setCharacterEncodingFilter</filter-name>
        <url-pattern>url模式</url-pattern>
</filter-mapping>

二、jsp中servlet的

    <servlet>
        <servlet-name>cgi</servlet-name>
        <servlet-class>org.apache.catalina.servlets.CGIServlet</servlet-class>
        <init-param>
          <param-name>debug</param-name>
          <param-value>0</param-value>
        </init-param>
    </servlet>

      <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>url模式</url-pattern>
    </servlet-mapping>

三、jsp中listener的配置

<listener>

      <listener-class>监听处理类</listener-class>

</listener>