would dispatch back to the current handler URL [/freemarkerIndex] again. Check your ViewResolver set

freemarker问题！！！

我的这个问题居然是忘了导入依赖。。。

<!-- 引入freeMarker的依赖包. -->
<dependency>
        <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>