如何从 Thymeleaf 调用对象的方法？
[英]How to call object's method from Thymeleaf?
问题描述
My template do not see objects, passed from Spring.
我的模板看不到从 Spring 传递过来的对象。
My code:我的代码：
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:控制器代码：
@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:主模板代码：
<!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:片段代码：
<!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结果我看到了方法调用的代码，比如
<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?为什么 thymeleaf 不调用方法，而是在输出页面打印此文本？ In example from http://www.thymeleaf.org/doc/tutorials/2.1/usingthymeleaf.html method calling has same syntax, like在http://www.thymeleaf.org/doc/tutorials/2.1/usingthymeleaf.html 的示例中，方法调用具有相同的语法，例如
${person.createCompleteName()}
The same code works good with JSP, but do not work with thymeleaf.相同的代码适用于 JSP，但不适用于 thymeleaf。
3 个解决方案
解决方案1
17 已采纳 2015-01-22 20:53:19
That can be done in Thymeleaf in two ways:这可以通过两种方式在 Thymeleaf 中完成：
First is to use special for Thymeleaf:首先是对 Thymeleaf 使用 special：
<head th:fragment="publicSiteHeader">
<title>SOME TITLE</title>
<th:block th:text="${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:第二种方式是：
<head th:fragment="publicSiteHeader" th:inline="text">
<title>SOME TITLE</title>
[["${CSSProcessor.setDebugCaller("Public")}"]]
[["${CSSProcessor.setSiteRegion("public")}"]]
[["${CSSProcessor.addCSS("/css/main.css")}"]]
</head>
For natural template processing second option is more preferable.对于自然模板处理，第二个选项更可取。 More info about inlining can be found here: http://www.thymeleaf.org/doc/tutorials/2.1/usingthymeleaf.html#inlining关于内联的更多信息可以在这里找到： http : //www.thymeleaf.org/doc/tutorials/2.1/usingthymeleaf.html#inlining
解决方案2
4 2015-01-21 13:51:02
You can call methods via thymeleaf but it is not a good practice.您可以通过 thymeleaf 调用方法，但这不是一个好习惯。 The thymeleaf has different philosophy than JSP - it tries to use valid HTML templates. thymeleaf 与 JSP 有着不同的理念——它尝试使用有效的 HTML 模板。 And to be honest: Calling methods in JSP is not good practice as well.老实说：在 JSP 中调用方法也不是好的做法。 But I am not your judge, so to call a method use non visible span or div, try something like:但我不是您的判断者，因此要使用不可见的跨度或 div 调用方法，请尝试以下操作：
<span th:text="${myvariable.myfunct()}" />
解决方案3
0 2015-01-21 13:27:19
Thymeleaf does not work like JSP. Thymeleaf 不像 JSP 那样工作。 It works by extending existing HTML elements with new attributes prefixed by "th:".它的工作原理是使用以“th:”为前缀的新属性扩展现有的 HTML 元素。 And you can reference variables (and therefore call method on them) only in theses extra-attributes.并且您只能在这些额外属性中引用变量（并因此调用它们的方法）。
Eg <p th:text="${contentOfTheParagraph}" /> will work with thymeleaf例如<p th:text="${contentOfTheParagraph}" />将与百里香叶一起使用
But <p>${contentOfTheParagraph}"</p> will not.但是<p>${contentOfTheParagraph}"</p>不会。
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