SpringBoot2.0及Spring 5.0 WebMvcConfigurerAdapter被废弃解决办法

1 直接实现WebMvcConfigurer (官方推荐)

@Configuration
public class WebMvcConfg implements WebMvcConfigurer {

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/index").setViewName("index");
    }

}

2 直接继承WebMvcConfigurationSupport

@Configuration
public class WebMvcConfg extends WebMvcConfigurationSupport {

    @Override
    protected void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/index").setViewName("index");
    }

}