map过了
比如
<servlet>
  <servlet-name>userLogin</servlet-name>
  <servlet-class>com.tominfo9.userLoginServlet</servlet-class>
</servlet>
<servlet-mapping>
  <servlet-name>userLogin</servlet-name>
  <url-pattern>/login</url-pattern>
</servlet-mapping>
或者是Rewrite
^/login$ passport/chklogin\.php