Spring Boot Hello World Application- Create simple controller and jsp view | JavaInUse



Spring Boot Hello World Application- Create simple controller and jsp view



In this post we create a spring boot application to display a simple welcome page.

Video

This tutorial is explained in the below Youtube Video.


Lets Begin-

Maven project will be as follows -

Along with the Spring Boot dependencies we have also tomcat-embed-jasper and jstl jar dependencies as these required when jsp view is used. In the pom file add the following dependencies-
<?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.javainuse</groupId>
	<artifactId>SpringBootHelloWorld</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>SpringBootHelloWorld</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.4.1.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-web</artifactId>
		</dependency>
		
		<dependency>
			<groupId>org.apache.tomcat.embed</groupId>
			<artifactId>tomcat-embed-jasper</artifactId>
		</dependency>

		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>


</project>
		
Create the SpringBootHelloWorldApplication.java as below-
package com.javainuse;

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

@SpringBootApplication
public class SpringBootHelloWorldApplication {

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

@RequestMapping maps /welcome request to firstPage() method.
package com.javainuse.controllers;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class TestController {

	@RequestMapping("/welcome")
	public ModelAndView firstPage() {
		return new ModelAndView("welcome");
	}

}

In the application.properties we define the prefix and suffix as follows. So in the above controller the /welcome.html correctly maps to /WEB-INF/jsp/welcome.jsp.
spring.mvc.view.prefix:/WEB-INF/jsp/
spring.mvc.view.suffix:.jsp

Last we define the welcome.jsp as below-
	
<h1>Welcome to Spring Boot</h1>

Compile and the run the SpringBootHelloWorldApplication.java as a Java application.
Go to localhost:8080/welcome

Download Source Code

Download it -
Spring Boot Hello World Application

See Also

Spring Boot Hello World Application- Create simple controller and jsp view using Gradle Spring Boot Tutorial-Spring Data JPA Spring Boot + Simple Security Configuration Pagination using Spring Boot Simple Example Spring Boot + ActiveMQ Hello world Example Spring Boot + Swagger Example Hello World Example Spring Boot + Swagger- Understanding the various Swagger Annotations Spring Boot Main Menu Spring Boot Interview Questions