1、config包

1.1、创建SpringMvcConfig类并实现接口WebMvcConfigurer

@EnableWebMvc
public class SpringMvcConfig implements WebMvcConfigurer {
    //视图解析器
    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver viewResolver =
        new InternalResourceViewResolver();
        viewResolver.setPrefix("/WEB-INF/views/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }
    //配置WebMvc相关配置，实现接口 WebMvcConfigurer
    //视图控制，默认首页
    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/").setViewName("index");
       
    }

}

1.2、AppConfig类

@Configuration
@ComponentScan("")
@Import({SpringMvcConfig.class})
public class AppConfig {

}

2、效果图