출처 :&nbsp;<a href="https://barbera.tistory.com/47" target="_blank">https://barbera.tistory.com/47</a> <h2 data-ke-size="size26" style="font-size: 24px; margin: 1.5em auto 1em; padding: 0px; outline: none; line-height: 1.2em; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif;">Devtools란 ?</h2><p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">devtools는 Spring boot에서 제공하는 개발 편의를 위한 모듈이다.<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">개발을 하다보면, 코드 수정시 브라우저에서 보여주는 내용도 수정하려면<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">어플리케이션을 재시작해야 하기 때문에 불편한 점이 많은데<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">devtools를 이용하면 이러한 불편한 점을 해결할 수 있다.<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">&nbsp;<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">크게 아래의&nbsp;<a href="https://docs.spring.io/spring-boot/docs/current/reference/html/using.html#using.devtools" target="_blank" rel="noopener" style="color: rgb(61, 179, 158);">5가지 기능</a>들을 제공한다고 하는데<ul data-ke-list-type="disc" style="margin-right: auto; margin-bottom: 32px; margin-left: auto; padding: 0px 0px 0px 10px; outline: none; list-style-position: initial; list-style-image: initial; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; font-size: 14px;"><li style="margin: 0px 0px 10px 24px; padding: 0px; outline: none; list-style: disc;">Property Defaults</li><li style="margin: 0px 0px 10px 24px; padding: 0px; outline: none; list-style: disc;">Automatic Restart</li><li style="margin: 0px 0px 10px 24px; padding: 0px; outline: none; list-style: disc;">Live Reload</li><li style="margin: 0px 0px 10px 24px; padding: 0px; outline: none; list-style: disc;">Global Settings</li><li style="margin: 0px 0px 10px 24px; padding: 0px; outline: none; list-style: disc;">Remote Applications</li></ul><p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">쉽게 말하면 브라우저로 전송되는 내용들에 대한 코드가 변경되면,&nbsp;자동으로 어플리케이션을 재시작하여&nbsp;<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">브라우저에도 업데이트를 해주는 역할을 한다.<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">&nbsp;<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">자주 사용하는 H2 콘솔로 예를 들면<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">인텔리제이에서 엔티티에 새로운 필드를 추가하거나 새로운 엔티티를 추가해도<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">프로젝트를 다시 시작하지 않고 h2 콘솔에서 업데이트된 정보를 볼 수 있다.<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">&nbsp;<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">추가로 H2 데이터베이스를 사용중이라면&nbsp;자동으로 H2콘솔도 활성화&nbsp;시켜주는 장점도 있다.<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">(server(tcp)모드로 h2를 사용할때 콘솔을 활성화 하지 않아도 프로젝트를 실행시킬 수 있다....!!)<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">&nbsp;<h2 data-ke-size="size26" style="font-size: 24px; margin: 1.5em auto 1em; padding: 0px; outline: none; line-height: 1.2em; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif;">&nbsp;</h2><h2 data-ke-size="size26" style="font-size: 24px; margin: 1.5em auto 1em; padding: 0px; outline: none; line-height: 1.2em; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif;">설정방법</h2><p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">1. Dependency에 Devtools를 추가한다.<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">Gradle이나 Maven 둘중 아무거나 사용해도 좋다.<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">Maven 사용시<pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'D2Coding',monospace;font-size:10.5pt;">&lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt; &lt;artifactId&gt;spring-boot-devtools&lt;/artifactId&gt; &lt;scope&gt;runtime&lt;/scope&gt; &lt;optional&gt;true&lt;/optional&gt; &lt;/dependency&gt;</pre><p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;"> <p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;"> <p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">2. Advanced Settings 설정<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">IntelliJ 2021이전에는 registry에 있는&nbsp;compiler.automake.allow.when.app.running&nbsp;설정에 체크해 주어야 했지만&nbsp;<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">2021 부터는 해당 설정이 레지스트리에서 Advanced Settings으로 옮겨 졌다.<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">아래의 빨간색 상자안에 있는 체크박스를 체크해주면 된다.&nbsp;<a href="https://youtrack.jetbrains.com/issue/IDEA-274903" style="color: rgb(61, 179, 158);" target="_blank">참고링크</a><p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">&nbsp;<img src='/api/file/0JX8TR5ZQ88NS' style="max-width:100%;height:auto;"><p style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;"><p style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;"><p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">&nbsp;<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">&nbsp;<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">3. Build project automatically 체크<p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">Build, Execution, Deployment -&gt; Compiler -&gt; Build project automatically 체크<p style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;"><p style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;"><p data-ke-size="size16" style="margin-right: auto; margin-bottom: 28px; margin-left: auto; padding-right: 0px; padding-left: 0px; outline: none; line-height: 28px; color: rgb(102, 102, 102); font-family: &quot;Noto Sans&quot;, sans-serif; padding-top: 0px !important; padding-bottom: 0px !important;">&nbsp;<img src='/api/file/0JX8TR61Q88KH' style="max-width:100%;height:auto;">

[IntelliJ] Spring Boot Devtools 사용법