Thymeleaf +弹簧动态更换

Wer*_*erb 4 spring thymeleaf

是否有可能在Thymeleaf中创建动态替换?

我有以下控制器:

@Controller
public class LoginController {

    @RequestMapping("/login")
    public String getLogin(Model model){
        model.addAttribute("template","login");
        return "index";
    }
}
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以下观点:

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" >
<head></head>
<body>

<div th:replace="fragments/${template} :: ${template}"></div>

</body>
</html>
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我收到以下错误:

Error resolving template "fragments/${template}", template might not exist or might not be accessible by any of the configured Template Resolvers
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UPDATE

我试图像这样预处理我的变量:

<div th:replace="fragments/${__#{${template}}__} :: ${__#{${template}}__}"></div>
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现在${template}如何取代login我现在有以下错误:

Exception evaluating SpringEL expression: "??login_en_US??"
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Wer*_*erb 12

虽然Joe Essey的解决方案也正常运行,但我解决了以下代码:

<div th:replace="@{'fragments/' + ${template}} :: ${template}"></div>
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Joe*_*sey 5

我相信在百里香中管理这种行为的适当方法是使用layout:fragment标签。如果我错了,请纠正我。这是我的布局页面的一个简单示例,以及“动态”加载的登录页面:

布局.html

<html xmlns:layout="http://www.w3.org/1999/xhtml" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <title layout:title-pattern="$DECORATOR_TITLE - $CONTENT_TITLE">Layout</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
    <meta http-equiv="X-UA-Compatible" content="IE=Edge"/>
</head>
<body>
<div>
    <div class="app-container">
        <div th:fragment="content">
        </div>
    </div>
</div>
<div th:fragment="script"></div>
</body>
</html>
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然后,当登录加载时,它会将th:fragmentdiv 替换为 html 视图中与控制器方法返回的字符串相匹配的关联 div,在本例中为 login.html:

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
      xmlns:layout="http://www.w3.org/1999/xhtml"
      layout:decorator="layout">
<head>
    <title>Login</title>
</head>
<body>
<div th:fragment="content">
    <form th:action="@{/login}" method="post">
        <div><label> User Name : <input type="text" name="username"/> </label></div>
        <div><label> Password: <input type="password" name="password"/> </label></div>
        <div><input type="submit" value="Sign In"/></div>
    </form>
</div>
</body>
</html>
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现在,如果您想有条件地加载另一个片段,我采取的方法是添加带有 th:if 情况的替换标签。以下是根据当前用户的属性显示不同问题的表单示例:

<div th:if="${foo.type)} == 'type_1'">
    <div th:replace="fragments/custom-questions :: type-1-checkboxes"></div>
</div>
<div th:if="${foo.type} == 'type_2'">
    <div th:replace="fragments/custom-questions :: type-2-checkboxes"></div>
</div>
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然后从文件 custom-questions.html 加载关联的 div:

<div th:fragment="type-1-checkboxes">
  //stuff
</div>

<div th:fragment="type-2-checkboxes">
  //stuff
</div>
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