有可能是mvc-dispatcher-servlet.xml中靜態資源文件的配置寫的有問題。舊版<mvc:resources location="/assets/**" mapping="/assets/**" />，新版<mvc:resources location="/assets/" mapping="/assets/**" />，那兩個星。

或者這個配置：

?<bean?id="viewResolver"?class="org.springframework.web.servlet.view.InternalResourceViewResolver">
????????<property?name="viewClass"?value="org.springframework.web.servlet.view.JstlView"?/>
????????<property?name="prefix"?value="/"?/>
????????<property?name="suffix"?value=".jsp"?/>
????????<property?name="contentType">
????????????<value>text/html;charset=UTF-8</value>
????????</property>
????</bean>

? ?我也是菜鳥，你先看看吧