下面是tomcat里面的web.xml配置的信息，能不能帮小弟我解释一下，刚学jsp，多谢！Root和wedav里面的web.xml的片段

下面是tomcat里面的web.xml配置的信息，能不能帮我解释一下，刚学jsp，谢谢！Root和wedav里面的web.xml的片段
<!-- JSPC servlet mappings start -->

  <servlet>
  <servlet-name>org.apache.jsp.index_jsp</servlet-name>
  <servlet-class>org.apache.jsp.index_jsp</servlet-class>
  </servlet>

  <servlet-mapping>
  <servlet-name>org.apache.jsp.index_jsp</servlet-name>
  <url-pattern>/index.jsp</url-pattern>
  </servlet-mapping>

<!-- JSPC servlet mappings end -->

  <servlet>
  <servlet-name>webdav</servlet-name>
  <servlet-class>org.apache.catalina.servlets.WebdavServlet</servlet-class>
   
   
   
  <init-param>
  <param-name>listings</param-name>
  <param-value>true</param-value>
  </init-param>  
  </servlet>
  
  
  
  <servlet-mapping>
  <servlet-name>webdav</servlet-name>
  <url-pattern>/*</url-pattern>
  </servlet-mapping>

[解决办法]

HTML code

<!-- JSPC servlet-->  <servlet>  <servlet-name>org.apache.jsp.index_jsp</servlet-name>  <servlet-class>org.apache.jsp.index_jsp</servlet-class>  </servlet><servlet>  <servlet-name>webdav</servlet-name>  <servlet-class>org.apache.catalina.servlets.WebdavServlet</servlet-class>              <init-param>  <param-name>listings</param-name>  <param-value>true</param-value>  </init-param>     </servlet>  <!-- JSPC servlet mappings -->        <servlet-mapping>  <servlet-name>org.apache.jsp.index_jsp</servlet-name>  <url-pattern>/index.jsp</url-pattern>  </servlet-mapping>     <servlet-mapping>  <servlet-name>webdav</servlet-name>  <url-pattern>/*</url-pattern>  </servlet-mapping>
[解决办法]
探讨


HTML code

<!-- JSPC servlet-->

  <servlet>
  <servlet-name>org.apache.jsp.index_jsp</servlet-name>
  <servlet-class>org.apache.jsp.index_jsp</servlet-class>
  </servlet>
<servlet>
  <servlet-name>……

[解决办法]
  <servlet>
   <description>errorServlet</description>
   <display-name>errorServlet</display-name>
   <servlet-name>errorServlet</servlet-name>
   <servlet-class>com.accp.servlet.errorServlet</servlet-class>
 </servlet>
 <servlet>
   <description>okServlet</description>
   <display-name>okServlet</display-name>
   <servlet-name>okServlet</servlet-name>
   <servlet-class>com.accp.servlet.okServlet</servlet-class>
 </servlet>


 <servlet-mapping>
   <servlet-name>errorServlet</servlet-name>
   <url-pattern>/errorServlet</url-pattern>
 </servlet-mapping>
 <servlet-mapping>
   <servlet-name>okServlet</servlet-name>
   <url-pattern>/okServlet</url-pattern>
 </servlet-mapping>


 <welcome-file-list>
  

  <welcome-file>index.jsp</welcome-file> 
 
  
  </welcome-file-list>
    
   
  <resource-ref>
 <description>news DataSource</description>

<res-ref-name>info</res-ref-name>

<res-type>javax.sql.DataSource</res-type>

<res-auth>Container</res-auth>
</resource-ref>

</web-app>

[解决办法]
你如果是在myeclipse里面别写的话，建一个web项目找到web.xml除了头部和尾部外全部删除，打个<再用ctrl+/出来提示信息再按F2出来一些配置信息填写规范，其中*和+号和正则表达式里面的意思是一样的。