jangyerin0509님이 올려주신 이미지인데요, 우측 상단의 빨간색 박스를

 아래와 같이 바꾸시고 주황색으로 표시한 버튼을 눌러주세요.

저도 계속 고생했는데

알약(antivirus software) 실행 종료 하고
맨 처음부터 다시 시작하니까 로컬호스트 열렸어요!

지금은 잘 실행됩니다! 새로운 질문이신가요??? 제가 답변을 너무 빨리 올렸나봐요!!

혹시 HelloSpringApplication 클래스에 아래와 같이 초록색 화살표 출력이 되어 있나요?

7, 9번 라인 보시면 클래스 옆과 main 메서드 옆에 화살표 있는데, main 메서드 옆에 있는 화살표 클릭해서 Run 'HelloSpringApp..' 이 부분 실행이 되실까요???

늦은시간에도 해결해 주셔서 고맙습니다!!! 덕분에 잘나와요!!!! 번거롭게 해드려서 죄송해요 더 열심히 공부해서 스스로도 잘 해결할수 있는 학생이 되겠습니당 저녁 잘보내시고 주말 잘보내세요 :) 하트

오 오른쪽마우스 해서 뜨게했습니다 

고맙습니다 제껀 망치 옆에 왜 말씀하신게 안뜰까요 흑흑

단순 콘솔 출력이 아니라, 전체 화면을 올려주셔서 원인을 알 수 있을 것 같네요. 전체 화면으로 올려주셔서 감사해요.

jangyerin0509님이 실행한 최근 실행한 프로그램은 MemberServletTest를 실행하신 것이여서

실제 톰캣이 구동되고 있는 상태가 아니기 때문에 url로 접속이 불가능합니다.

우측 상단의 망치 옆의 MemberServletTest를 HelloSpringApplication으로 바꿔주세요.

바꾸고 실행하신 후 안될 경우 댓글 남겨주세요.

이렇게 나옵니다! 내용은 저기 위에 복사한것과 같습니다 

엊그제 올려주신 것처럼 콘솔 화면 출력해서 보여주세요.

최대한 많은 내용을 볼 수 있도록 창을 최대한 늘려주세요.

Home Controller 실행하고 밑에 나온 글입니다!

C:\Users\82102\.jdks\openjdk-16.0.1\bin\java.exe -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2021.1.3\lib\idea_rt.jar=51207:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2021.1.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2021.1.3\lib\idea_rt.jar;C:\Users\82102\.m2\repository\org\junit\platform\junit-platform-launcher\1.7.2\junit-platform-launcher-1.7.2.jar;C:\Users\82102\.m2\repository\org\apiguardian\apiguardian-api\1.1.0\apiguardian-api-1.1.0.jar;C:\Users\82102\.m2\repository\org\junit\platform\junit-platform-engine\1.7.2\junit-platform-engine-1.7.2.jar;C:\Users\82102\.m2\repository\org\opentest4j\opentest4j\1.2.0\opentest4j-1.2.0.jar;C:\Users\82102\.m2\repository\org\junit\platform\junit-platform-commons\1.7.2\junit-platform-commons-1.7.2.jar;C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 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ches\modules-2\files-2.1\org.opentest4j\opentest4j\1.2.0\28c11eb91f9b6d8e200631d46e20a7f407f2a046\opentest4j-1.2.0.jar;C:\Users\82102\.gradle\caches\modules-2\files-2.1\ch.qos.logback\logback-core\1.2.3\864344400c3d4d92dfeb0a305dc87d953677c03c\logback-core-1.2.3.jar;C:\Users\82102\.gradle\caches\modules-2\files-2.1\org.apache.logging.log4j\log4j-api\2.14.1\cd8858fbbde69f46bce8db1152c18a43328aae78\log4j-api-2.14.1.jar;C:\Users\82102\.gradle\caches\modules-2\files-2.1\org.ow2.asm\asm\9.1\a99500cf6eea30535eeac6be73899d048f8d12a8\asm-9.1.jar;C:\Users\82102\.gradle\caches\modules-2\files-2.1\org.junit.jupiter\junit-jupiter-engine\5.7.2\9415680a889f00b8205a094c5c487bc69dc7077d\junit-jupiter-engine-5.7.2.jar;C:\Users\82102\.gradle\caches\modules-2\files-2.1\org.junit.platform\junit-platform-engine\1.7.2\2573770b46b8a199ed5f6b0f96fb99e468bfe891\junit-platform-engine-1.7.2.jar" com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit5 service.MemberServiceTest

Process finished with exit code 0

이렇게 보여드리면 되나요?...

안녕하세요. jangyerin0509님, 공식 서포터즈 OMG입니다.

제 예상으로는 서버가 제대로 실행되지 않은 것으로 보입니다.

혹은 프로퍼티 파일에서 바꾼 포트 번호로 연결을 시도하지 않아 발생한 문제일 수도 있습니다.

localhost:바꾼포트번호 경로로 url 접속해보세요. 그래도 안될 경우

인텔리제이에서 서버 실행 후 콘솔창에 출력되는 로그를 최대한 많이 보이게끔 밑에서부터 보여주세요.

감사합니다.