SpringBoot1繼承的WebMvcConfigurerAdapter，在 2 中廢棄了

SpringBoot2繼承了WebMvcConfigurationSupport 後，WebMvcAutoConfiguration自動配置失效，需要全部手動配置

@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {
    /**
     * 靜態資源映射
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        
 
// addResourceHandler 設置訪問路徑前綴，addResourceLocations 設置資源路徑
        registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");

    }

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

    /**
     * 攔截器配置
     */
    @Override
    protected void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LoginInterceptor())
                .addPathPatterns(
 
"/**")
                .excludePathPatterns("/goLogin", "/login");
    }

    /**
     * 編碼配置
     */
    @Override
    protected void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        super.configureMessageConverters(converters);
        converters.add(new StringHttpMessageConverter(Charset.forName("UTF-8")));
    }
}

SpringBoot2繼承了WebMvcConfigurationSupport後，WebMvcAutoConfiguration自動配置失效