Spring Boot 404 when trying to load a HTML file using Thymeleaf

Spring Boot 404 when trying to load a HTML file using Thymeleaf - spring

Like the title says, I'm getting the Whitelabel 404 error page when trying to access localhost:8080.
Main class:
package com.michaelLong.studentaddressbook;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
#SpringBootApplication
public class StudentAddressBookApplication extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(StudentAddressBookApplication.class, args);
}
}
pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.michaelLong</groupId>
<artifactId>student-address-book</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>student-address-book</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Controller:
package controller;
import model.Student;
import model.StudentRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.ui.Model;
import java.util.Map;
#Controller
public class StudentController {
#Autowired
StudentRepository studentRepository;
#GetMapping("/")
public String showStudents(Model model){
model.addAttribute("students", studentRepository.findAll());
return "showStudents";
}
}
application.properties:
spring.jpa.hibernate.ddl-auto=none
spring.datasource.url=jdbc:mysql://localhost:3306/StudentAddressBook
spring.datasource.username=root
spring.datasource.password=SQLpassword
showStudents.html:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Student List</title>
</head>
<body>
<h2>List of students</h2>
<table>
<tr>
<th>Id</th>
<th>First name</th>
<th>Last name</th>
</tr>
<tr th:each="student: ${students}">
<td th:text="${student.id}">Id</td>
<td th:text="${student.firstName}">First name</td>
<td th:text="${student.lastName}">Last name</td>
</tr>
</table>
</body>
</html>
Project structure:
src
|__main
|__java
| |__com.example.studentaddressbook
| | |__StudentAddressBookApplication
| |__controller
| | |__StudentController
| |__model
| |__Student
| |__StudentRepository
|__resources
|__static
|__templates
| |__showStudents.html
|__application.properties
I've tried looking at a lot of different tutorials, and a few SO posts like these:
Spring Boot and Thymeleaf: Can't find HTML templates & Why the html page doesn't get showed in thymeleaf?
I was originally trying to use JSPs, but I couldn't get those to work either. I feel like I'm banging my head against the wall at this point and I'm not sure what else to do. This is my first time trying to use Spring Boot and Thymeleaf, so I'm having some difficulty figuring this out.
Any help trying to figure out why I can't access the HTML page would be greatly appreciated.

You have your StudentAddressBookApplication located in package "com.michaelLong.studentaddressbook" => it will scan only the beans from this parent package.
StudentController is located in package "controller" => the application will not scan it at all.
Very simple solution : move StudentController to package com.michaelLong.studentaddressbook. Also, the same applies for StudentRepository.
P.S packages in java are always lower case.

The problem is happening because of you project structure. Create package controller and model under com.example.studentaddressbook. Create project structure like this image. Let us know it it work

For those who are using Intellij, I had problem with Intellij run. After:
ctrl+shift+a -> type: reimport... and select: "Reimport All Maven Projects". Made It working again.

Replacing common thymeleaf dependency by thymeleaf starter made the trick for me:
[Error]
implementation 'org.thymeleaf:thymeleaf:3.1.0.M1'
[Correct]:
implementation 'org.springframework.boot:spring-boot-starter-thymeleaf:2.6.7'

Related

Controller GetMapping/RequestMapping not working

I'm practicing my springboot knowledge so I'm trying to create a simple Todo Application. When I run my main app at localhost:8080/tasks/list, I'm getting a Whitelabel error page even If I configure the correct routing for my html file. I'm using JSP at this time, I also created a thymeleaf version of this but still I'm getting the same error. Thanks!
enter image description here
MainApp.java
package task.springboot.todo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class TodoappOracleApplication {
public static void main(String[] args) {
SpringApplication.run(TodoappOracleApplication.class, args);
}
}
TaskController.java
package task.springboot.todo.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
#RequestMapping("/tasks")
public class TaskController {
#GetMapping("/list")
public String showTodoList() {
return "todo-list";
}
}
todo-list.jsp
<!DOCTYPE html>
<html>
<head>
<title> Todo Application </title>
</head>
<body>
<h2>Welcome to Todo Application</h2>
</body>
</html>
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>task.springboot.todo</groupId>
<artifactId>todoapp_oracle</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>todoapp_oracle</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc8</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.properties
#
#
#
#
# Oracle Database Datasource
#
#
spring.datasource.url=jdbc:oracle:thin:#localhost:1521:xe
spring.datasource.username=system
spring.datasource.password=password
#
#
#
#

Please add thymeleaf dependency to the pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
and change the file extension from .jsp to .html (todo-list.html) and place it under path src/main/resources/templates

error 404 while run springBoot application on chrome browser

I want to use jsp with springboot, i add jasper dependency in my
pom.xml file, but when i run my springboot app it run corectly ,when i
type localhost:8080/home in my browser it show me this type of error.
i use getMapping annotation in palace of RequestMapping,I try it last
four days but it cannot shorout
this is my project file strcture
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.main</groupId>
<artifactId>SpringSecurityTutorial</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>SpringSecurityTutorial</name>
<description>Spring Security Service</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jasper -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>8.0.28</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jasper -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>8.5.35</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
HomeConteoller.java
package com.main.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
#Controller
public class HomeController {
#GetMapping("/home")
public String home() {
return "Home.jsp";
}
}
home.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
Welcome to Security Protection
</body>
</html>

The string returned by the home() handler method in your controller should be the name of the JSP view, without the extension. i.e. return "home";.

Try by adding the following dependency
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
</dependency>

Try this :
return "/Home.jsp";

Why controller class not return jsp page in springBoot application

I created just a simle springBoot application,and I want when i lunch
my application it retun me my jsp page in my browser. but when I type
localhost:8080 in my browser it return me this type of error"There was
an unexpected error (type=Not Found, status=404)."I added jasper
dependency got same error,I use jsp api dependency in place jasper i
got same error.
what is the reason i am not getting jsp page as a result,why it throws
error404
this type of error
project file strcture
HomeController.java
package com.main.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
public class HomeController {
#RequestMapping("/")
public String host() {
return "Katak.jsp";
}
}
Katak.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
Welcome to security World
</body>
</html>
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.8.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.main</groupId>
<artifactId>BasicSecurity-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>BasicSecurity-2</name>
<description>Demo project for SpringSecurity</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jasper -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>8.5.37</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

Make sure that you are using proper jsp names, in project structure, jsp name is showing as "Katakile.jsp". But in controller you are returning "Katak.jsp".
If names are proper and still not working, please use "tomcat-embed-jasper" dependency instead of "tomcat-jasper" and remove the tomcat-jasper dependency from your classpath, if exists.
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>8.5.6</version>
<scope>provided</scope>
</dependency>

Just edit this line
#RequestMapping("/katak")
public String host() {
return "/Katakile.jsp";
}
And try acces localhost:8080/katak

getting error 500 while using SpringMVC with JSP page

I am trying to create a UI with JSP and SpringBoot using SpringMVC.
after all the configuration properly done i am still getting the error - "java.lang.ClassNotFoundException: org.eclipse.jdt.internal.compiler.env.INameEnvironment" I have tried so much to resolve it but still not working. if anyone can help me. thank you in advance.
My file structure
enter image description here
My Controller
package com.capgemini.PACE.PACE;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
public class HelloController {
#RequestMapping("/")
public String Hello()
{
return "/Hello";
}
}
My SpringBoot page
package com.capgemini.PACE.PACE;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class PaceApplication {
public static void main(String[] args) {
SpringApplication.run(PaceApplication.class, args);
}
}
My pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.capgemini.PACE</groupId>
<artifactId>PACE</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>PACE</name>
<description>Demo project for Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
my JSP page
<%# page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>HEllo!!</h1>
</body>
</html>
my application.properties
server.port=8082
spring.mvc.view.prefix = /WEB-INF/views/
spring.mvc.view.suffix = .jsp
spring.mvc.static-path-pattern=/resources/**
I have tried adding these dependencies in the pom.xml still didn't work getting the same error
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>javax.servlet.jsp.jstl-api</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
I am getting error-
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Wed Apr 03 14:06:02 EDT 2019
There was an unexpected error (type=Internal Server Error, status=500).
org/eclipse/jdt/internal/compiler/env/INameEnvironment

In my case it worked by adding this dependency in pom.xml file.
It is needed to compile jsp don't know why tomcat-embed-jasper version is not working
<dependency>
<groupId>org.eclipse.jdt.core.compiler</groupId>
<artifactId>ecj</artifactId>
<version>4.6.1</version>
<scope>provided</scope>
</dependency>

Controller class cannot find html template

My directory
I'm trying to create spring boot application for school that lists books to a html page from database with a controller.
Personally, i think that the problem is that the controller cannot find the template for some reason. Because when i navigate to the wanted template through chrome, it just shows "booklist" on the page, nothing else.
I've tried creating totally new project and copying the code from my other files to the new files with no results.
My controller class:
#Controller
#ResponseBody
public class BookController {
#Autowired
BookRepository bookRepository;
#RequestMapping(value = "/books", method = RequestMethod.GET)
public String getBooks(Model model) {
List<Book> books = (List<Book>) bookRepository.findAll();
model.addAttribute("books", books);
return "booklist";
}
My html template:
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Book List</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h1>Books</h1>
<table>
<tr>
<th>Id</th>
<th>Title</th>
<th>Year</th>
<th>Isbn</th>
<th>Price</th>
</tr>
<tr th:each="book : ${books}">
<td th:text="${book.id}">id</td>
<td th:text="${book.title}">title</td>
<td th:text="${book.year}">year</td>
<td th:text="${book.isbn}">isbn</td>
<td th:text="${book.price}">price</td>
</tr>
</table>
</body>
</html>
pom.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>hh.swd20</groupId>
<artifactId>Bookstore</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Bookstore</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.properties file:
spring.h2.console.enabled=true
spring.h2.console.path=/h2-console
spring.jpa.show-sql=true

Remove the annotation #ResponseBody from your controller class, because:
The #ResponseBody annotation tells a controller that the object returned is automatically serialized into JSON and passed back into the HttpResponse object.
Then the returned String booklist will be used by Spring-MVC to resolve the named HTML template file.
The template file (e.g. booklist.html) will be looked for by default within default template directory is src/main/resources/templates.
Otherwise make sure to have configured the ViewResolver properly.
For Thymeleaf you have to add dependency to your Maven POM:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
See also this Spring-Boot & Thymeleaf tutorial

You can try this .
Hit : localhost://yourportnumber/api/books
//#Controller
#RestController
//#ResponseBody
#RequestMapping("/api")
public class BookController {
#Autowired
BookRepository bookRepository;
#GetMapping(value = "/books", method = RequestMethod.GET)
public ModelAndView getBooks(Model model) {
List<Book> books = (List<Book>) bookRepository.findAll();
model.addAttribute("books", books);
ModelAndView mav = new ModelAndView("booklist");
return mav;
}

Develop Reference

ruby bash windows laravel spring algorithm oracle macos go visual-studio

Spring Boot 404 when trying to load a HTML file using Thymeleaf - spring

The problem is happening because of you project structure. Create package controller and model under com.example.studentaddressbook. Create project structure like this image. Let us know it it work

For those who are using Intellij, I had problem with Intellij run. After: ctrl+shift+a -> type: reimport... and select: "Reimport All Maven Projects". Made It working again.

Replacing common thymeleaf dependency by thymeleaf starter made the trick for me: [Error] implementation 'org.thymeleaf:thymeleaf:3.1.0.M1' [Correct]: implementation 'org.springframework.boot:spring-boot-starter-thymeleaf:2.6.7'

Related

Controller GetMapping/RequestMapping not working

error 404 while run springBoot application on chrome browser

Why controller class not return jsp page in springBoot application

getting error 500 while using SpringMVC with JSP page

Controller class cannot find html template

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