springBoot同时支持html，jsp

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springBoot默认不支持jsp，出于个人的好奇就去尝试了一下让springBoot同时支持html，jsp。断断续续弄了两天，终于弄出来了，亲测可行。
项目结构：

IndexController.java：

package org.dreams.forepart.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * @author：eagle
 * */

@Controller
public class IndexController {

    @RequestMapping("/jsp")
    public String jsp(Model model) {
        model.addAttribute("message", "this is index jsp page!");
        return "index";
    }

    @GetMapping("/html")
    public String testThemleaf(Model model) {
        model.addAttribute("message", "this is index html page!");
        return "html/index";
    }
}

Application.java:

package org.dreams.forepart;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}

}

ViewResolverConfiguration.java:

package org.dreams.forepart;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.thymeleaf.spring5.SpringTemplateEngine;
import org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver;
import org.thymeleaf.spring5.view.ThymeleafViewResolver;
import org.thymeleaf.templateresolver.ITemplateResolver;

/***
 * @author：eagle
 */
@Configuration
public class ViewResolverConfiguration {
    /**用来定义 DispatcherServlet 应用上下文中的 bean*/
    @Configuration
    @EnableWebMvc
    @ComponentScan("org.dreams.forepart")
    public class WebConfig implements WebMvcConfigurer {
        @Bean
        public ViewResolver viewResolver() {
            InternalResourceViewResolver resolver = new InternalResourceViewResolver();
            resolver.setPrefix("/jsp/");
            resolver.setSuffix(".jsp");
            resolver.setViewNames("*");
            resolver.setOrder(2);
            return resolver;
        }

        @Bean
        public ITemplateResolver templateResolver() {
            SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
            templateResolver.setTemplateMode("HTML5");
            templateResolver.setPrefix("/");
            templateResolver.setSuffix(".html");
            templateResolver.setCharacterEncoding("utf-8");
            templateResolver.setCacheable(false);
            return templateResolver;
        }

        @Bean
        public SpringTemplateEngine templateEngine() {
            SpringTemplateEngine templateEngine = new SpringTemplateEngine();
            templateEngine.setTemplateResolver(templateResolver());
            // templateEngine
            return templateEngine;
        }

        @Bean
        public ThymeleafViewResolver viewResolverThymeLeaf() {
            ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
            viewResolver.setTemplateEngine(templateEngine());
            viewResolver.setCharacterEncoding("utf-8");
            viewResolver.setOrder(1);
            viewResolver.setViewNames(new String[]{"html/*", "vue/*"});
            return viewResolver;
        }

        @Override
        public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
            configurer.enable();
        }

        @Override
        public void addResourceHandlers(ResourceHandlerRegistry registry) {
            registry.addResourceHandler("/img/**").addResourceLocations("/img/");
            registry.addResourceHandler("/static/**").addResourceLocations("/WEB-INF/" + "/static/");
        }
    }
}

index.html:

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<span th:text="${message}"></span>
</body>
</html>

orcHome.png:

随便一张png

index.jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<img src="/img/orcHome.png"/>
${message}
</body>
</html>

完毕！！！