问题：

        SpringBoot配置Swagger2出现页面无法访问错误 ：No mapping for GET /swagger-ui.html

解决：

        如果继承了WebMvcConfigurationSupport，则在yml中配置的相关内容会失效；需重新指定静态资源路径映射。

        在当前继承WebMvcConfigurationSupport的配置类加上如下代码：

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/**").addResourceLocations(
                "classpath:/static/");
        registry.addResourceHandler("swagger-ui.html").addResourceLocations(
                "classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations(
                "classpath:/META-INF/resources/webjars/");
        super.addResourceHandlers(registry);
    }