Springboot自定义mvc组件如何实现

package com.yl.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.Locale;

/**
 * mvc配置类
 */
@Configuration
public class MyMvcConfig implements WebMvcConfigurer {

  /**
   * 将自定义视图解析器配置成bean存入spring
   */
  @Bean
  public ViewResolver myViewResovler(){
    return new MyViewResolver();
  }


  /**
   * 自定义视图解析器,实现视图解析器接口
   */
  public static class MyViewResolver implements ViewResolver{

    @Override
    public View resolveViewName(String viewName, Locale locale) throws Exception {
      return null;
    }
  }
}