SpringBoot2 配置JSP,HTML两种视图解析

1.配置类

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.format.FormatterRegistry;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
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;

@Configuration
public class MvcAdapter implements WebMvcConfigurer {

    /**
     * 默认，解析到/META-INF/resources/jsp/
     * 
     * @return
     */
    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/jsp/");
        resolver.setSuffix(".jsp");
        resolver.setViewNames("*");
        resolver.setOrder(2);
        return resolver;
    }

    /**
     * 以/开头，解析到/templates/
     * 
     * @return
     */
    @Bean
    public ITemplateResolver templateResolver() {
        SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
        templateResolver.setTemplateMode("HTML5");
        templateResolver.setPrefix("classpath:/templates");
        templateResolver.setSuffix(".html");
        templateResolver.setCharacterEncoding("utf-8");
        templateResolver.setCacheable(false);
        return templateResolver;
    }

    /**
     * 以/开头，解析到/templates/
     * 
     * @return
     */
    @Bean
    public SpringTemplateEngine templateEngine() {
        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.setTemplateResolver(templateResolver());
        return templateEngine;
    }

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

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

2.在src\main\resource\下新建”META-INF\resources\jsp“三层目录，用来放JSP

3.HTML按老规矩，放在src\main\resource\templates里

4.js,css等的放在src\main\resources\static里

5.Controller类里，以”/"开头的找html,默认找jsp