在一个项目中同时存在jsp和html两种页面，只需对springmvc配置做一点修改

1、maven引入freemarker依赖

<dependency>
    <groupId>org.freemarker</groupId>
    <artifactId>freemarker</artifactId>
    <version>2.3.23</version>
</dependency>

2、修改spring配置文件

 <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
        <property name="templateLoaderPath" value="/modules/"/>
    </bean>

<!-- html视图解析 -->
    <bean id="htmlViewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/>
        <property name="contentType" value="text/html; charset=utf-8"/>
        <property name="suffix" value=".html"/>
        <property name="order" value="0"/>
    </bean>

<!-- jsp视图解析 -->
    <bean id="jspViewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/modules/" />
        <property name="suffix" value=".jsp" />
        <property name="order" value="1"/>
    </bean>