spring boot的web配置

继承WebMvcConfigurerAdapter类，重写类中的方法，可以增加额外的配置

@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter{

    /**
     * 配置静态访问资源
     * @param registry
     */
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        //registry.addResourceHandler("/img/**").addResourceLocations("classpath:/static/img/");对项目资源进行访问
        registry.addResourceHandler("/img/**").addResourceLocations("file:F:/");//对外部资源进行访问
        super.addResourceHandlers(registry);
    }
    //页面跳转
    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/login").setViewName("login");
    }
}