Spring how to return view from the controller without error page

Question

I recently start spring so sorry if my questions is stupid.

I make a controller file to return the view "index" but when I start the application I get the Whitelabel Error Page

Do you know why ?

this is my controller :

package com.teamtraveler.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/")
public class IndexController {

    @GetMapping("/")
    public String index(){
        return "index";
    }

}

this is my view (not usefull I think) :

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Team Traveler - Accueil</title>
</head>
<body>
c'est qu'un début
</body>
</html>

and this is the Application.class :

package com.teamtraveler;


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {

    @Bean
    public ViewResolver internalResourceViewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();
        bean.setViewClass(JstlView.class);
        bean.setPrefix("classpath:/view/");
        bean.setSuffix(".jsp");
        return bean;
    }

    public static void main(String... args){
        SpringApplication.run(Application.class, args);
    }
}

this is th structure of the project : i have a structure who look similar :

my project
      |  
      |___src   
           |__main   
               |__ java   
                     |__com  
                         |__myProject  
                                |__config (empty)  
                                |__model  (empty)  
                                |__controler(indexController)  
                                |__Applicatoin.class  
               |
               |__resources  
                      |__view (index.jsp)  
                      |__template (empty)

what should I change ?

I think I miss something but I don't know what ... thank you !

EDIT :

I change the index.html to index.jsp

also add application.properties :

spring.thymeleaf.prefix=classpath:/view
spring.thymeleaf.check-template-location=true
spring.thymeleaf.suffix=.html
spring.thymeleaf.mode=LEGACYHTML5
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.cache=false

and now I get this error :

3-16 20:10:00.244 ERROR 10022 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config] with root cause

java.lang.ClassNotFoundException: javax.servlet.jsp.jstl.core.Config
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581) ~[na:na]
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na]
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
    at org.springframework.web.servlet.support.JstlUtils.exposeLocalizationContext(JstlUtils.java:103) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.view.JstlView.exposeHelpers(JstlView.java:137) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:145) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:317) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1373) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1118) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.27.jar:9.0.27]
    at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

the file is called index.html (e.g. html) ...in src/main/resources/and view provider is in classpath/configured (e.g. spring-boot-starter-thymeleaf)? — xerx593
– xerx593, Commented Mar 16, 2020 at 17:49
yes index.html is in src/main/resources/view I put the view provider in application.class — Gautier Drincqbier
– Gautier Drincqbier, Commented Mar 16, 2020 at 18:26
... add resources/application.properties file with content: spring.thymeleaf.prefix=classpath:/view/ ;) see also, welcome! :) — xerx593
– xerx593, Commented Mar 16, 2020 at 18:53
alternatively, in your controller, return "view/index"; .... baeldung.com/spring-thymeleaf-template-directory — xerx593
– xerx593, Commented Mar 16, 2020 at 18:55
(with spring-boot and thymeleaf starter in classpath, no further configuration needed (@Bean) ..only for "very special" purposes, for "config": spring.thymeleaf.* properties) — xerx593
– xerx593, Commented Mar 16, 2020 at 19:01

Alien · Accepted Answer · 2020-03-16 17:52:17Z

0

First thing is you have to configure view resolver to find the page location.

It might be happening because the package wasn't auto scanned for the classes. To fix so, I suggest to update the structure of the code to the structure that is advised in the documentation. Another way to fix it is to try to specify @ComponentScan manually.

edited Mar 16, 2020 at 17:52

answered Mar 16, 2020 at 17:40

Alien

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2 Comments

Gautier Drincqbier Over a year ago

I edit my post to add information and I tried @ComponentScan inside the cotnroller but it didn't work ...

Alien Over a year ago

Use this as your view pages are html not JSP. spring.mvc.view.prefix=/view/ spring.mvc.view.suffix=.html

Léo Schneider · Accepted Answer · 2020-03-16 18:43:03Z

0

You have one problem here:

@Controller
@RequestMapping("/")
public class IndexController {

    @GetMapping("/")
    public String index(){
        return "index";
    }

}

Your controller is handling everything at the path / and your method at the path "/"+"/"

Consider this:

@Controller
@RequestMapping("/")
public class IndexController {

    @GetMapping
    public String index(){
        return "index";
    }
}

answered Mar 16, 2020 at 18:43

Léo Schneider

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1 Comment

Gautier Drincqbier Over a year ago

thank for you answer I tried this but it doesn't work ... have you an other idea ?

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