SpringBoot访问外部文件及默认路由问题

package com.pibigstar.common.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import com.pibigstar.common.Constant;

@Configuration
public class WebConfig implements WebMvcConfigurer{

	/**
	 * 访问外部文件配置，访问D盘下文件
	 */
	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
		//配置server虚拟路径，handler为jsp中访问的目录，locations为files相对应的本地路径     
		registry.addResourceHandler("/files/**").addResourceLocations("file:///D:upload/");  
	}
	/**
	 *	配置默认路由
	 */
	@Override
    public void addViewControllers(ViewControllerRegistry registry) {
        //将浏览器的默认行为重定向到主页
        registry.addViewController("/").setViewName("redirect:/index.htm");
        //测试页面
        registry.addViewController("/test.htm").setViewName("/test.jsp");
	}
}

cbs:
    filePath: file:///

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

/**
 * @description:配置访问外部文件
 * @author: Administrator
 * @date: 2019-07-10 16:17
 */
 
@Configuration
public class WebConfig extends WebMvcConfigurationSupport {
 
    @Value("${cbs.filePath}")
    private String filePath;//文件地址
 
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        System.out.println("文件路径=="+filePath);
        registry.addResourceHandler("/appFile/**").addResourceLocations(filePath);
        super.addResourceHandlers(registry);
    }
}