Question

我想尝试使用百日咳的解耦模板逻辑。这在thymeleaf 3.0 documentation中提到。

根据教程，我创建了我的项目here
我的模板＆amp;解耦逻辑存在于LogicTemplate.html＆amp; LogicTemplate.th.xml档案。
LogicTemplate.html的代码段如下：

＆＃13;

<html xmlns="http://www.w3.org/1999/xhtml"
	xmlns:th="http://www.thymeleaf.org">
<head>
<title>ThymeLeaf:Example03</title>
</head>
<body>
	<table id="ProductTable">
		<tr>
			<td class="Name">Name</td>
			<td class="Price">Price</td>
			<td class="InStock">In Stock</td>
			<td class="Comments">Comments</td>
		</tr>
		<tr>
			<td class="Name">Ppap</td>
			<td class="Price">10</td>
			<td class="InStock">Yes</td>
			<td class="Comments">No Comments</td>
		</tr>
	</table>
</body>
</html>

＆＃13;

<?xml version="1.0"?>
<thlogic>
  <attr sel="#ProductTable" th:remove="all-but-first">
    <attr sel="/tr[0]" th:each="prod : ${products}">
      <attr sel="td.Name" th:text="${prod.name}" />
      <attr sel="td.Price" th:text="${prod.price}" />
      <attr sel="td.InStock" th:text="${prod.inStock}" />
      <attr sel="td.Comments" th:text="${${prod.comments!=null and (not #lists.isEmpty(prod.comments))}?#lists.size(prod.comments):0}}" />
    </attr>
  </attr>
</thlogic>

＆＃13;

DeCoupledLogic

public class DeCoupledLogic {
        public static void main(String[] args) {
            final FileTemplateResolver templateResolverFile = new FileTemplateResolver();
            templateResolverFile.setTemplateMode(TemplateMode.HTML);
            templateResolverFile.setPrefix("src/main/resources/templates/html/");
            templateResolverFile.setSuffix(".html");
            templateResolverFile.setCacheTTLMs(1 * 60 * 60 * 1000l);
            templateResolverFile.setCacheable(Boolean.TRUE);
            templateResolverFile.setCharacterEncoding("UTF-8");
            templateResolverFile.setCheckExistence(true);
            templateResolverFile.setUseDecoupledLogic(true);
            templateResolverFile.setCheckExistence(true);

            final StandardDecoupledTemplateLogicResolver resolver=new StandardDecoupledTemplateLogicResolver();
            resolver.setPrefix("src/main/resources/templates/html/");

            final TemplateEngine templateEngine = new TemplateEngine();
            templateEngine.setTemplateResolver(templateResolverFile);
            templateEngine.setDecoupledTemplateLogicResolver(resolver);

            final Context context01 = new Context();
            context01.setVariable("products",ProductRepository.getInstance().findAll());

            final BufferedWriter writer01=new BufferedWriter(new OutputStreamWriter(System.out));
            templateEngine.process("LogicTemplate",context01,writer01);     
        }
    }

` 但是执行此代码并不能提供所需的结果。输出实际：

＆＃13;

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>ThymeLeaf:Example03</title>
</head>
<body>
	<table id="ProductTable">
		<tr>
			<td class="Name">Name</td>
			<td class="Price">Price</td>
			<td class="InStock">In Stock</td>
			<td class="Comments">Comments</td>
		</tr>
		<tr>
			<td class="Name">Ppap</td>
			<td class="Price">10</td>
			<td class="InStock">Yes</td>
			<td class="Comments">No Comments</td>
		</tr>
	</table>
</body>

＆＃13;

预期产出：不得包含此静态文本，但必须包含所有产品信息。但我无法确定此代码块出错的位置。请帮我识别代码中的潜在错误。

Answer 1

Thymeleaf默认配置final FileTemplateResolver templateResolverFile = new FileTemplateResolver(); templateResolverFile.setTemplateMode(TemplateMode.HTML); templateResolverFile.setPrefix("src/main/resources/templates/html/"); templateResolverFile.setSuffix(".html"); templateResolverFile.setCacheTTLMs(1 * 60 * 60 * 1000l); templateResolverFile.setCacheable(Boolean.TRUE); templateResolverFile.setCharacterEncoding("UTF-8"); templateResolverFile.setCheckExistence(true); templateResolverFile.setUseDecoupledLogic(true); templateResolverFile.setCheckExistence(true); final TemplateEngine templateEngine = new TemplateEngine(); templateEngine.setTemplateResolver(templateResolverFile); final Context context01 = new Context(); context01.setVariable("products",ProductRepository.getInstance().findAll()); final BufferedWriter writer01=new BufferedWriter(new OutputStreamWriter(System.out)); templateEngine.process("LogicTemplate",context01,writer01);（您正在配置的那个看起来配置错误）。通过将其更改为：

，我能够使您的文件正常工作

<?xml version="1.0"?>
<thlogic>
    <attr sel="#ProductTable" th:remove="all-but-first">
        <attr sel="/tr[0]" th:each="prod : ${products}">
            <attr sel="td.Name" th:text="${prod.name}" />
            <attr sel="td.Price" th:text="${prod.price}" />
            <attr sel="td.InStock" th:text="${prod.inStock}" />
            <attr sel="td.Comments" th:text="${prod.comments != null and (not #lists.isEmpty(prod.comments)) ? #lists.size(prod.comments) : 0}" />
        </attr>
    </attr>
</thlogic>

另外，你的逻辑xml中有一些拼写错误，它应该是这样的：

var message = context.MakeMessage();
message.Speak = "Here is your receipt.";

var attachment = GetReceiptCard();
message.Attachments.Add(attachment);

await context.PostAsync(message);

无法实现Thymeleaf 3.0解耦逻辑，模板没有填充数据？

1 个答案: