方法一、配置welcome-file-list和servlet-mapping
<!-- 將默認歡迎頁配置為要訪問的controller路徑 -->
<welcome-file-list>
<welcome-file>task/code.do</welcome-file>
</welcome-file-list>
<!-- 配置攔截的后綴 -->
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
方法二、同樣是配置welcome-file-list和servlet-mapping
<!-- 不用.do后綴 -->
<welcome-file-list>
<welcome-file>task/code</welcome-file>
</welcome-file-list>
<!-- 另外配置一個servlet-mapping攔截歡迎頁配置的路徑 -->
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/task/code</url-pattern>
</servlet-mapping>