Thymeleaf异常：TemplateInputException：解析模板＆＃34;索引＆＃34;模板可能不存在

Question

打开网站主页时我有这个例外

SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/mintad] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: Error resolving template "index", template might not exist or might not be accessible by any of the configured Template Resolvers] with root cause
org.thymeleaf.exceptions.TemplateInputException: Error resolving template "index", template might not exist or might not be accessible by any of the configured Template Resolvers
    at org.thymeleaf.TemplateRepository.getTemplate(TemplateRepository.java:246)
    at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1104)
    at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060)
    at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011)
    at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335)
    at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1217)
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1005)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:952)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)

我尝试了很多事情，但徒劳无功。

这是我的配置类：

package com.mintad.spring.config;

import java.util.List;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.support.StandardServletMultipartResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
import org.thymeleaf.extras.springsecurity4.dialect.SpringSecurityDialect;
import org.thymeleaf.spring4.SpringTemplateEngine;
import org.thymeleaf.spring4.view.ThymeleafViewResolver;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;

//@EnableWebMvc
@Configuration
@ComponentScan("com.mintad.spring.controllers")
@PropertySource("classpath:mintad.properties")
// public class MvcConfig extends WebMvcConfigurerAdapter {
public class MvcConfig extends WebMvcConfigurationSupport {

    @Value("${thymeleaf.template.cacheable}")
    private String thymeleafTemplateCacheable;

    @Value("${messages.cacheReloading}")
    private String messagesCacheReloading;

    @Value("${resources.cachePeriod}")
    private String resourcesCachePeriod;

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/assets/**").addResourceLocations("classpath:/assets/");//.setCachePeriod(Integer.parseInt(resourcesCachePeriod));
    }

    @Override
    public RequestMappingHandlerMapping requestMappingHandlerMapping() {
        RequestMappingHandlerMapping requestMappingHandlerMapping = super.requestMappingHandlerMapping();
        requestMappingHandlerMapping.setUseSuffixPatternMatch(false);
        requestMappingHandlerMapping.setUseTrailingSlashMatch(false);
        return requestMappingHandlerMapping;
    }

    @Bean
    public ClassLoaderTemplateResolver templateResolver() {
        ClassLoaderTemplateResolver result = new ClassLoaderTemplateResolver();
        result.setPrefix("/WEB-INF/views/");
        result.setSuffix(".html");
        result.setTemplateMode("HTML5");
        result.setOrder(1);
        result.setCacheable(Boolean.valueOf(thymeleafTemplateCacheable));
        return result;
    }

    @Bean
    public SpringTemplateEngine templateEngine() {
        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.setTemplateResolver(templateResolver());
        templateEngine.addDialect(new SpringSecurityDialect());
        templateEngine.addDialect(new nz.net.ultraq.thymeleaf.LayoutDialect());
        return templateEngine;
    }

    @Bean
    public ThymeleafViewResolver viewResolver() {
        ThymeleafViewResolver thymeleafViewResolver = new ThymeleafViewResolver();
        thymeleafViewResolver.setTemplateEngine(templateEngine());
        thymeleafViewResolver.setCharacterEncoding("UTF-8");
        return thymeleafViewResolver;
    }

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

    @Override
    protected void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {

    }

    @Bean
    public MultipartResolver multipartResolver() {
        return new StandardServletMultipartResolver();
    }

}

打开索引页面的控制器部分：

@RequestMapping(value = { "/", "/home" }, method = RequestMethod.GET)
    public ModelAndView index(HttpServletRequest request) {
        System.out.println("index page");
        ModelAndView model = new ModelAndView();
        model.getModelMap().addAttribute("missionautesSurSite", Constants.MISSIONAUTES_SUR_SITE);
        model.getModelMap().addAttribute("vuePubsSurSite", Constants.VUES_DE_PUB_SUR_LE_SITE);
        model.getModelMap().addAttribute("missionsRalisees", Constants.MISSIONS_REALISEES);

        model.setViewName("index");
        return model;
    }

请注意调用system.out。返回模型时抛出异常。

我的安全配置类是：

package com.mintad.spring.security;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

@Configuration
@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Autowired
    DataSource dataSource;

    @Autowired
    public void configureGlobalSecurity(AuthenticationManagerBuilder auth) throws Exception {
        auth.jdbcAuthentication().dataSource(dataSource)
                .usersByUsernameQuery("select username,password, enabled from users where username=?")
                .authoritiesByUsernameQuery("select username, role from userroles where username=?");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http.authorizeRequests().antMatchers("/", "/index").permitAll().and().formLogin().loginPage("/login")
                .defaultSuccessUrl("/welcome").usernameParameter("username").passwordParameter("password").and()
                .exceptionHandling().accessDeniedPage("/Access_Denied");
    }
}

请帮助我！