The requested resource (/JSPExample/registerServlet) is not available

Question

HTTP Status 404 - /JSPExample/registerServlet--------------------------------------------------------------------------------type Status reportmessage /JSPExample/registerServletdescription The requested resource (/JSPExample/registerServlet) is not available.
--------------------------------------------------------------------------------Apache Tomcat/6.0.35

Answer 1

检查Web.xml中关于Server的mapping的配置；
另外你的Web应用的Context是否确定是JSPExample？

Answer 2

 <servlet>
    <description>This is the description of my J2EE component</description>
    <display-name>This is the display name of my J2EE component</display-name>
    <servlet-name>RegisterServlet</servlet-name>
    <servlet-class>servlet.RegisterServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>RegisterServlet</servlet-name>
    <url-pattern>/RegisterServlet</url-pattern>
  </servlet-mapping>

Answer 3

<url-pattern>/RegisterServlet</url-pattern>大小写应保持一致：
/JSPExample/RegisterServlet如果还不行，就是Context路径名并不是JSPExample。当然也可能是没成功发布。