Question

我正在我的Spring Boot项目中设置Thymeleaf电子邮件模板。我收到错误消息：

属性名称不能为空

在电子邮件服务类的templateEngine.process(templateName, context)上。

我不明白该错误所指的attribute name是什么。

Spring-thymeleaf文件中的

application.yml配置：

spring:
  thymeleaf:
    encoding: UTF-8
    check-template: true
    check-template-location: true
    mode: HTML
    prefix: /mail/
    suffix: .html

电子邮件服务方法：

Context context = new Context();
context.setVariable("today", "Saturday");
String emailBody = templateEngine.process("test_template", context);
mimeMessageHelper.setText(emailBody, true);
javaMailSender.send(mimeMessage);

src/main/resources/mail/test_template.html下的电子邮件模板：

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
  <body style="margin: 0; padding: 0;">
    <h3 th:text="${today}"/>
      Hello
  </body>
</html>

错误消息：

Caused by: org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [mail/test_template.html]")
    at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:241) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:649) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1059) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1048) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]

Caused by: org.attoparser.ParseException: Attribute name cannot be null or empty
    at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:393) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    ... 28 common frames omitted
Caused by: java.lang.IllegalArgumentException: Attribute name cannot be null or empty
    at org.thymeleaf.engine.AttributeName.<init>(AttributeName.java:51) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.HTMLAttributeName.<init>(HTMLAttributeName.java:76) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.HTMLAttributeName.forName(HTMLAttributeName.java:63) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeNames.buildHTMLAttributeName(AttributeNames.java:292) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeNames.access$300(AttributeNames.java:37) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeNames$AttributeNamesRepository.storeAttribute(AttributeNames.java:693) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeNames$AttributeNamesRepository.getAttribute(AttributeNames.java:607) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeNames.forHTMLName(AttributeNames.java:480) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeDefinitions$AttributeDefinitionRepository.storeAttribute(AttributeDefinitions.java:788) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeDefinitions$AttributeDefinitionRepository.getAttribute(AttributeDefinitions.java:677) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeDefinitions.forHTMLName(AttributeDefinitions.java:405) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.AttributeDefinitions.forName(AttributeDefinitions.java:336) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.engine.TemplateHandlerAdapterMarkupHandler.handleAttribute(TemplateHandlerAdapterMarkupHandler.java:492) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler$InlineMarkupAdapterPreProcessorHandler.handleAttribute(InlinedOutputExpressionMarkupHandler.java:360) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.standard.inline.OutputExpressionInlinePreProcessorHandler.handleAttribute(OutputExpressionInlinePreProcessorHandler.java:260) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler.handleAttribute(InlinedOutputExpressionMarkupHandler.java:205) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
    at org.attoparser.HtmlElement.handleAttribute(HtmlElement.java:250) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.attoparser.HtmlMarkupHandler.handleAttribute(HtmlMarkupHandler.java:529) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.attoparser.MarkupEventProcessorHandler.handleAttribute(MarkupEventProcessorHandler.java:593) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.attoparser.ParsingAttributeSequenceUtil.parseAttributeSequence(ParsingAttributeSequenceUtil.java:220) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.attoparser.ParsingElementMarkupUtil.parseOpenElement(ParsingElementMarkupUtil.java:153) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.attoparser.MarkupParser.parseBuffer(MarkupParser.java:710) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:301) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
    ... 30 common frames omitted

处理百里香电子邮件模板时，属性名称不能为空错误

0 个答案: