Configure the servlet mistake !

error message above , servlet-name can not be found , how could this be .
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though you just cut a figure , but I saw one of your misspelled
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to your .. < ;/ servlet> change

  <servlet>
    	<servlet-name>HandleRegister</servlet-name>
    	<servlet-class>myservlet.HandleRefister</servlet-class>
    </servlet>
    <servlet-mapping>
    	<servlet-name>HandleRegister</servlet-name>
    	<url-pattern>/HandleRegister</url-pattern>
    </servlet-mapping>

remember the servlet and servlet-mapping is a parallel relationship , the relationship is not included
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hand wrong letter by mistake

  <servlet>
    	<servlet-name>HandleRegister</servlet-name>
    	<servlet-class>myservlet.HandleRegister</servlet-class>
    </servlet>
    <servlet-mapping>
    	<servlet-name>HandleRegister</servlet-name>
    	<url-pattern>/HandleRegister</url-pattern>
    </servlet-mapping>

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and wrong, just one floor of a friend corrected my spelling mistake
The carefully check spelling , should be right up . . Why servlet-mapping can not find it
this have any special requirements you