[Spring] Spring Initializr?

Spring Initializr 간략하게 보기

Spring Initializr created a maven.

Maven Standard Directory Structure

Maven Wrapper files

• mbnw allows you to run a Maven project
  • No need to have Maven installed or present on your path
  • if correct version of Maven is NOT found on your computer
    • Automatically downloads correct version and runs Maven
• Two files are provided
  • mvnw.cmd for MS Windows
  • mvnw.sh for Linux / Mac

하지만 이전에 설치 되어 있다면 별 상관 없음

Maven POM file

• pom.xml includes info that you entered at Spring Initializr website

<?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>3.0.4</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.luv2code.springboot.demo</groupId>
    <artifactId>mycoolapp</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>mycoolapp</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-web</artifactId>
        </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>

• Spring Boot Maven plugin

  • To package executable jar or war archive Can also easily run the app

Application Properties

• By default, Spring Boot will load properties from: application.properties

• Created by Spring initializr

  • Empty at the beginning

  • Can add Spring Boot properties server.port=8585

  • Also add your own custom properties coach.name = Mickey Mouse

• Read data from : application.properties

  @RestController
  public class FunRestController
    
      @Value ("${coach.name}")
      private String coachName;
    
      @Value ("${team.name}")
      private String teamName;
  

  # configure server port
  server.port = 8484
  

configure my props

coach.name = Micky Mouse
 team.name = The Mouse Crew

Static Content

• By default, Spring Boot will load static resources from “/static” directory

• Example of static resources HTML files, CSS, JavaScript, Images, etc

• Do not use the src/main/webapp directory if your application is packaged as a JAR.

Although this is a standard Maven directory, it works only with WAR packaging.

It is silently ignored by most build tools if you generate a JAR.

• WAR 패키징만 되니까 조심할 것

Templates

• Spring Boot includes auto-configuration for following template engines

• FreeMarker

• Thymeleaf (제일 인기 많다고 함)

• Mustache

Unit Tests

출처 유데미, luv2code.com