原因:springcloud 的gateway的web与springmvc的依赖冲突
解决办法:
<dependency>
<groupId>com.shurui.intelligence</groupId>
<artifactId>campus_common</artifactId>
<version>1.0-SNAPSHOT</version>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
引入坐标时忽略spring-webmvc坐标即可.