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Spring Boot Set Up

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1) Create new project

Go to https://start.spring.io/

fill the form

Project : maven or gradle any what you want.

Language : java

Spring Boot : 2.1.8

Group : com.setup (your project name)

Artifact : setup(your short project name)

Dependencies : Spring Web , Spring Data JPA, MySql Driver

Now Click on Generate the project Button

Then it will download the project

unzip it and import on IDE

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2) Import/Open on Intellij IDE

Click on import or open project select the pom.xml or build.gradle file from your project path click on open as project Then it will take few minutes to downloads the dependencies

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3) Database Config

Got to src/main/resources/application.properties and open it.

Write following :

spring.datasource.url=jdbc:mysql://localhost:3306/setup
spring.datasource.username=dhiraj
spring.datasource.password=

spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=false
spring.datasource.platform=SELECT 1

Create Database setup on Mysql.

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4) Web Config

Got to src/main/resources/application.properties and open it. Write following :

server.port=8081
spring.mvc.view.prefix=/pages/
spring.mvc.view.suffix=.jsp
spring.resources.static-locations=classpath:/resources/
logging.level.org.springframework=TRACE
logging.level.com=TRACE

Inside main package/directory create new directory i.e. webapp

Inside webapp directory create new directory i.e. pages

Inside webapp directory create new directory i.e. resources

Inside resources directory create new directories for js, css, img etc. and add required files like bootstrap.min.css etc.

Now inside pages directory create new jsp file as index.jsp with Hello world World text

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5) Add Required Dependencies

Open pom.xml incase of maven add jar add following dependencies

<dependency>
      	<groupId>org.springframework.boot</groupId>
      	<artifactId>spring-boot-starter-tomcat</artifactId>
      	<scope>compile</scope>
</dependency>
   
<dependency>
      	<groupId>org.apache.tomcat.embed</groupId>
      	<artifactId>tomcat-embed-jasper</artifactId>
      	<scope>compile</scope>
</dependency>
  
<dependency>
       	<groupId>commons-logging</groupId>
       	<artifactId>commons-logging</artifactId>
       	<version>1.2</version>
</dependency>
  
<dependency>
     	<groupId>javax.servlet</groupId>
     	<artifactId>jstl</artifactId>
     	<version>1.2</version>
</dependency>

Refresh the maven

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6) Index Controller

Go to src/main/java/com/setup/setup/ and create new package controller. Inside that controller package create new class IndexController.java. Inside that class write following codes:

package com.setup.setup.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;

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

Go to the main class ie src/main/java/com/setup/setup/SetupApplication.java , in that class add @ComponentScan({"com.setup.setup.service" , "com.setup.setup.controller"}) on top of the class. We need to put the package location in which we use @service , @Component , @Controller etc annotations.

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7) Run

Click to run button