CODEWITHSUNDEEP
javaspringthymeleaf
Arthur
Arthur

Reputation: 3473

How to call object's method from Thymeleaf?

My template do not see objects, passed from Spring.

My code:

public class PublicModelAndView extends ModelAndView {

    @Autowired
    TemplateModulesHandler templateModulesHandler;

    public void init() {

        setViewName("index");
        CSSProcessor cSSProcessor = new CSSProcessor();
        cSSProcessor.setSiteRegion("public");
        super.addObject("CSSProcessor", cSSProcessor);

        JSProcessor jSProcessor = new JSProcessor();
        super.addObject("JSProcessor", jSProcessor);

        templateModulesHandler.setPublicModelAndView(this);

    }

}

Contoller's code:

@SpringBootApplication
@Controller
public class IndexPage {

    @Autowired
    PublicModelAndView publicModelAndView;
    @Autowired
    OurServicesBean ourServicesBean;
    @Autowired
    PortfolioBean portfolioBean;

    @RequestMapping(value = "/", method = RequestMethod.GET)
    public ModelAndView indexPage() {

        publicModelAndView.setTemplate("publicSiteIndexPage");
        publicModelAndView.addObject("ourServices", ourServicesBean.getMenu());
        publicModelAndView.addObject("portfolioWorkTypes", portfolioBean.getWorkTypes());
        publicModelAndView.addObject("portfolioWorks", portfolioBean.getWorks());

        return publicModelAndView;

    }

}

Main template's code:

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org"
      >
    <head th:include="headerAndFooter/fragments/header :: publicSiteHeader">
        <title></title>
    </head>
    <body>
        hello!
    </body>

</html>

Fragment's code:

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org">

    <head th:fragment="publicSiteHeader">

        <title>SOME TITLE</title>

         ${CSSProcessor.setDebugCaller("Public")}
         ${CSSProcessor.setSiteRegion("public")}
         ${CSSProcessor.addCSS("/css/main.css")}
    </head>
    <body>

    </body>
</html>

As result I see code of the method calling, like

<html xmlns="http://www.w3.org/1999/xhtml">
    <head>

        <title>SOME TITLE</title>

         ${CSSProcessor.setDebugCaller("Public")}
         ${CSSProcessor.setSiteRegion("public")}
         ${CSSProcessor.addCSS("/css/main.css")}

Why thymeleaf didn't call methods, but print this text at the output page? In example from http://www.thymeleaf.org/doc/tutorials/2.1/usingthymeleaf.html method calling has same syntax, like 

${person.createCompleteName()}

The same code works good with JSP, but do not work with thymeleaf.

Upvotes: 16

Views: 70822

Answers (3)

kulatamicuda
kulatamicuda

Reputation: 1661

You can call methods via thymeleaf but it is not a good practice. The thymeleaf has different philosophy than JSP - it tries to use valid HTML templates. And to be honest: Calling methods in JSP is not good practice as well. But I am not your judge, so to call a method use non visible span or div, try something like:

<span th:text="${myvariable.myfunct()}" />

Upvotes: 5

Ostap Gonchar
Ostap Gonchar

Reputation: 782

That can be done in Thymeleaf in two ways:

First is to use special for Thymeleaf:

<head th:fragment="publicSiteHeader">

    <title>SOME TITLE</title>

     <th:block th:text="${CSSProcessor.setDebugCaller("Public")}"/>
     <th:block th:text="${CSSProcessor.setSiteRegion("public")}"/>
     <th:block th:text="${CSSProcessor.addCSS("/css/main.css")}"/>
</head>

And the second way is:

<head th:fragment="publicSiteHeader" th:inline="text">

    <title>SOME TITLE</title>

     [["${CSSProcessor.setDebugCaller("Public")}"]]
     [["${CSSProcessor.setSiteRegion("public")}"]]
     [["${CSSProcessor.addCSS("/css/main.css")}"]]
</head>

For natural template processing second option is more preferable. More info about inlining can be found here: http://www.thymeleaf.org/doc/tutorials/2.1/usingthymeleaf.html#inlining

Upvotes: 22

Gauthier JACQUES
Gauthier JACQUES

Reputation: 675

Thymeleaf does not work like JSP. It works by extending existing HTML elements with new attributes prefixed by "th:". And you can reference variables (and therefore call method on them) only in theses extra-attributes.

E.g. <p th:text="${contentOfTheParagraph}" /> will work with thymeleaf

But <p>${contentOfTheParagraph}"</p> will not.

Upvotes: 1

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