SpringBoot从1.5.1→2.2.4项目加包扫雷三：org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter已过时

@Configuration
@Slf4j
@PropertySource({"classpath:/config.properties"})
public class MyWebAppConfigurer extends WebMvcConfigurerAdapter {｝，这里

WebMvcConfigurerAdapter 依赖org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter

改为从WebMvcConfigurationSupport继承，相应引用包org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;（推荐）

或改为WebMvcConfigurer实现，相应引用包org.springframework.web.servlet.config.annotation.*

相关包调整：

import org.springframework.web.servlet.config.annotation.InterceptorRegistry;

import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;