Spring Boot - Multiple Template Location
I want Spring to look for templates in different places, not just src/main/resource/templates/
.
That's what i am
@Configuration
public class WebConfig{
@Autowired
private SpringTemplateEngine templateEngine;
@PostConstruct
public void clientTemplate(){
SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
resolver.setPrefix("static/client");
resolver.setSuffix(".html");
resolver.setTemplateMode("HTML5");
resolver.setOrder(templateEngine.getTemplateResolvers().size());
resolver.setCacheable(false);
templateEngine.addTemplateResolver(resolver);
}
}
But when I try to access the existing index.html template /src/main/resources/static/client
in I have:
java.lang.IllegalArgumentException: ApplicationContext has not been initialized in resource resolver. TemplateResolver or ResourceResolver might not have been correctly configured by the Spring Application Context.
at org.thymeleaf.util.Validate.notNull(Validate.java:37)
at org.thymeleaf.spring4.resourceresolver.SpringResourceResourceResolver.getResourceAsStream(SpringResourceResourceResolver.java:81)
at org.thymeleaf.TemplateRepository.getTemplate(TemplateRepository.java:221)
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:1257)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1037)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:980)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
How to solve this problem?
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1. Non-Spring managed SpringResourceTemplateResolver
With your current setup, you are instantiating SpringResourceTemplateResolver
, NOT in a method @Bean
. So it doesn't get spring and you need to provide ApplicationContext
( example ):
SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
resolver.setApplicationContext(applicationContext);
resolver.setPrefix("/WEB-INF/templates/");
resolver.setTemplateMode(TemplateMode.HTML);
pay attention to resolver.setApplicationContext(applicationContext);
2.spring managed SpringResourceTemplateResolver
You probably see examples that don't require this, but they certainly instantiate SpringResourceTemplateResolver
in a method @Bean
. spring picks and sets the application context for you ( example ):
@Bean
public ITemplateResolver templateResolver() {
SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
resolver.setPrefix("/WEB-INF/templates/");
resolver.setSuffix(".html");
resolver.setTemplateMode(TemplateMode.HTML);
resolver.setCacheable(false);
return resolver;
}
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ThymeLeaf is disabled if no pattern resolver is defined as @ Bean. You can replace your WebConfig class with this.
@Configuration
public class WebConfig{
@Bean
public ITemplateResolver templateResolver() {
SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
resolver.setPrefix("static/client");
// For Spring Boot
// resolver.setPrefix("classpath:/templates/");
resolver.setSuffix(".html");
resolver.setTemplateMode("HTML5");
resolver.setCacheable(false);
return resolver;
}
}
The new template will be displayed and added to the list of resolver templates, effectively performing the same operations as "templateEngine.addTemplateResolver ()".
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