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Thymeleaf cannot detect templates inside spring-boot project

I have the following project structure in my Spring boot app, in which I want to use Thymeleaf

projectName
    -Gradle-Module1(Spring boot module)
        -build
        -src
            -main
            -resources
                -templates
                    index.html
        build.gradle
    -Gradle-Module2
        ...
    build.gradle
    ...

but the spring-boot cannot find my template directory and is showing warning

Cannot find template location: classpath:/templates/ (please add some templates or check your Thymeleaf configuration)

PS: I am using @EnableAutoConfiguration

In my controller code I am doing something like:

@Controller
@EnableAutoConfiguration
public class BaseController {

    @RequestMapping(value = "/")
    public String index() {
        return "index.html";
    }
}

and index.html file just prints hello world.

So typically it should look inside src/resources/templates/(of same Gradle module I suppose), but somehow it is not able to find it.

When I try to access localhost:8080 I am getting below error

Error resolving template “index.html”, template might not exist or might not be accessible by any of the configured Template Resolvers`

Is there anything I am missing?
Any pointers appreciated. Thanks.

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Answer

You have to configure Thymeleaf as follows:

@Configuration
public class ThymeleafConfig {
    @Bean
    public SpringResourceTemplateResolver templateResolver() {
        SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
        templateResolver.setCacheable(false);
        templateResolver.setPrefix("classpath:/templates/");
        templateResolver.setSuffix(".html");
        return templateResolver;
    }

    @Bean
    public SpringTemplateEngine templateEngine() {
        SpringTemplateEngine springTemplateEngine = new SpringTemplateEngine();
        springTemplateEngine.addTemplateResolver(templateResolver());
        return springTemplateEngine;
    }

    @Bean
    public ThymeleafViewResolver viewResolver() {
        ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
        viewResolver.setTemplateEngine(templateEngine());
        viewResolver.setOrder(1);
        return viewResolver;
    }
}

Spring doc recommends to add @EnableAutoConfiguration annotation to your primary @Configuration class.

Also it seems you have wrong project structure, the typical package hierarchy is:

src
  |- main
      |- java
      |- resources
          |- static
          |- templates
  |- test

In this case your templates will be in src/main/resources/templates, not in src/resources/templates/.

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