java-SpringBoot 使用WebMvcConfigurer扩展(mvc)视图映射

1.配置SpringMvc扩展类

package com.springweb.web;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * 功能描述:
 */
@Configuration
public class WebMvc implements WebMvcConfigurer {
    /**
     * Configure simple automated controllers pre-configured with the response
     * status code and/or a view to render the response body. This is useful in
     * cases where there is no need for custom controller logic -- e.g. render a
     * home page, perform simple site URL redirects, return a 404 status with
     * HTML content, a 204 with no content, and more.
     * @param registry
     */
    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        /**
         * 功能描述: 设置路径/web1映射到路径index
         * addViewController(String  urlPath)
         * 将视图控制器映射到给定的URL路径（或模式），以便使用预先配置的状态代码和视图呈现响应。
         * public void setViewName(String  viewName)
         * 将视图名称设置为return。
         * @param registry
         * @retuern void
         **/
        registry.addViewController("/").setViewName("index");
        registry.addViewController("/web0").setViewName("index");
    }
}

2.html位置

3.结果

总结:就不需要我们在写一个

    @RequestMapping("/html1")
    public String html1(){
        return "index";
    }

直接通过名字就可以直接访问了