<dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-thymeleaf</artifactId>

 </dependency>

@Configuration

public class WebMvcConfigurer extends WebMvcConfigurerAdapter {

    @Override

    public void addResourceHandlers(ResourceHandlerRegistry registry) {

        //和页面有关的静态目录都放在项目的static目录下

        registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");

        //上传的图片在D盘下的OTA目录下，访问路径如：http://localhost:8080/xxx.jpg

    }

}