Reputation: 114
i want to show a requested object in HTML and i get a Error and i have no idea what cause my error. Google could not help and now i try to ask you. I don't think the Error comes from my Table, because i commented it out and the error still occour. The Error also not come from "http://localhost:8081/simulation" because i reseive a valid JSON with valid values. Thanks for helping :).
Here is my Code:
ApiController.java:
package de.WI18C.Gruppe5.API.controller;
import de.WI18C.Gruppe5.API.model.Unternehmen;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;
@Controller
public class APIContoller {
@RequestMapping(value = "/unternehmen", method = RequestMethod.GET)
public String viewUnternehmen(Model model) {
RestTemplate restTemplate = new RestTemplate();
Unternehmen unternehmen = restTemplate.getForObject("http://localhost:8081/simulation", Unternehmen.class);
model.addAttribute("unternehmen", unternehmen);
return "unternehmen";
}
}
unternehmen.html:
<!doctype html>
<html xmlns:th="http://www.thymeleaf.org" lang="de">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"/>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<title>Unternehmen</title>
</head>
<body>
<div class="col-12 align-content-center">
<div class="row">
<div class="col-8 mx-auto">
<table class="table">
<thead>
<tr>
<th scope="col">#</th>
<th scope="col">Attribut</th>
<th scope="col">Wert</th>
</tr>
</thead>
<tbody>
<tr>
<th scope="row">1</th>
<td>Name</td>
<td th:text="${unternehmen.getName()}"></td>
</tr>
<tr>
<th scope="row">2</th>
<td>Bestand</td>
<td th:text="${unternehmen.getBestand()}"></td>
</tr>
<tr>
<th scope="row">3</th>
<td>Bedarf</td>
<td th:text="${unternehmen.getBedarf()}"></td>
</tr>
<tr>
<th scope="row">4</th>
<td>Verkaufspreis</td>
<td th:text="${unternehmen.getVerkaufspreis()}"></td>
</tr>
<tr>
<th scope="row">5</th>
<td>Gewinn</td>
<td th:text="${unternehmen.getGewinn()}"></td>
</tr>
<tr>
<th scope="row">6</th>
<td>Bestand - Rad</td>
<td th:text="${unternehmen.getBestand_rad()}"></td>
</tr>
<tr>
<th scope="row">7</th>
<td>Bestand - Rahmen</td>
<td th:text="${unternehmen.getBestand_rahmen()}"></td>
</tr>
<tr>
<th scope="row">8</th>
<td>Bestand - Lenker</td>
<td th:text="${unternehmen.getBestand_lenker()}"></td>
</tr>
<tr>
<th scope="row">9</th>
<td>Bestand - Licht</td>
<td th:text="${unternehmen.getBestand_licht()}"></td>
</tr>
<tr>
<th scope="row">10</th>
<td>Bestand - Schaltung</td>
<td th:text="${unternehmen.getBestand_schaltung()}"></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin="anonymous"></script>
</body>
</html>
The Error i get by call "http://localhost:8080/unternehmen" (sorry for bad formating):
2020-12-16 15:07:55.635 ERROR 3696 --- [nio-8080-exec-1] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-8080-exec-1] Exception processing template "unternehmen": An error happened during template parsing (template: "class path resource [templates/unternehmen.html]")
org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/unternehmen.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:1072) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:362) ~[thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:189) ~[thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1394) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1139) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1078) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:961) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.1.jar:5.3.1] at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.39.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.1.jar:5.3.1] at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.39.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.1.jar:5.3.1] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.1.jar:5.3.1] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.1.jar:5.3.1] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.1.jar:5.3.1] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.1.jar:5.3.1] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.1.jar:5.3.1] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na] Caused by: org.attoparser.ParseException: 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] ... 48 common frames omitted Caused by: java.lang.IllegalArgumentException: Name cannot be null or empty at org.thymeleaf.engine.AttributeNames.forHTMLName(AttributeNames.java:478) ~[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] ... 50 common frames omitted
2020-12-16 15:07:55.638 ERROR 3696 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/unternehmen.html]")] with root cause
java.lang.IllegalArgumentException: Name cannot be null or empty at org.thymeleaf.engine.AttributeNames.forHTMLName(AttributeNames.java:478) ~[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] 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] 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:1072) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:362) ~[thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:189) ~[thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1394) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1139) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1078) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:961) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.1.jar:5.3.1] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.1.jar:5.3.1] at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.39.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.1.jar:5.3.1] at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.39.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.1.jar:5.3.1] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.1.jar:5.3.1] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.1.jar:5.3.1] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.1.jar:5.3.1] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.1.jar:5.3.1] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.1.jar:5.3.1] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.39.jar:9.0.39] at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]
Upvotes: 0
Views: 1959
Reputation: 114
Now i build my html completely new and it works. It is really the same document but there is a different use of the "meta" tag in the new one.
old:
<!doctype html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"/>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<title>Unternehmen</title>
</head>
<body>
<!-- My Table -->
</body>
</html>
new:
<!doctype html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1" crossorigin="anonymous">
<title>Unternehmen</title>
</head>
<body>
<!-- My Table -->
</body>
</html>
.... Thats all. I have the same Java Controller and all the other stuff. Thanks to want2learn and LucasJC for time and advice.
Upvotes: 0
Reputation: 81
Something is wrong with your template. I could not replicate it locally but that error means some template tag is not correct when it is parsed. Thymeleaf errors sadly are not that well communicated.
You could try two things:
A) Debugging
attributeName
(at line 490) has a null value (Which I understand is your issue)B) If debugging is too much you could just rebuild a new template from scratch testing it step by step (I think you have to restart your application everytime you make achange to your template file)
Good luck!
Upvotes: 2
Reputation: 2511
Remove the use of getter inside thymeleaf
and use just like
<td th:text="${unternehmen.name}"></td>
<td th:text="${unternehmen.bestand}"></td>
Do it for all properties and it should work.
Upvotes: 0