Web server failed to start. Port 8686 was already in use.

Question

sts 3점대 사용하고, jdk 11 입니다application.yml 파일이고 mybatis 사용합니다server: port: 8686 spring: # file Size servlet: multipart: max-file-size: 10MB max-request-size: 10MB # Oracle Connect datasource: driver-class-name: oracle.jdbc.driver.OracleDriver url: jdbc:oracle:thin:&#64;localhost:1521/xe username: scott2 password: tiger # jpa Setting # jpa: # show-sql: true # Operation --> create / none # hibernate: # ddl-auto: update # view Resolver mvc: view: prefix: /WEB-INF/views/ suffix: .jsp # gmail Transfer mail: host: smtp.gmail.com port: 587 username: chayeji0317&#64;gmail.com password: jyea nclv ndzb icfd properties: mail: smtp: auth: true starttls.enable: true # Mybatis classpath &#61; src/main/resources 의미 mybatis: config-location: classpath:configuration.xml mapper-locations: classpath:mappers/*.xml logging.level: org.hibernate.SQL: debug # logger를 통해 하이버네이트 실행 SQL 아래는 build.gradle 파일입니다 plugins { id 'java' id 'org.springframework.boot' version '2.7.16' id 'io.spring.dependency-management' version '1.0.15.RELEASE' } group &#61; 'com.oracle' version &#61; 'version1.0' java { sourceCompatibility &#61; '11' targetCompatibility &#61; '11' } configurations { compileOnly { extendsFrom annotationProcessor } } repositories { mavenCentral() } dependencies { implementation 'org.springframework.boot:spring-boot-starter-data-jpa' implementation 'org.springframework.boot:spring-boot-starter-mail' implementation 'org.springframework.boot:spring-boot-starter-security' implementation 'org.springframework.boot:spring-boot-starter-validation' implementation 'org.springframework.boot:spring-boot-starter-web' implementation 'org.springframework.boot:spring-boot-starter-websocket' implementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter:2.3.1' implementation 'org.apache.tomcat.embed:tomcat-embed-jasper' // 톰캣 내장 라이브러리 (원래 존재) implementation 'javax.servlet:jstl' // 3.0 미만 (원래 존재) implementation 'com.googlecode.json-simple:json-simple:1.1.1' compileOnly 'org.projectlombok:lombok' runtimeOnly 'com.oracle.database.jdbc:ojdbc8' annotationProcessor 'org.projectlombok:lombok' testImplementation 'org.springframework.boot:spring-boot-starter-test' testImplementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter-test:2.3.1' testImplementation 'org.springframework.security:spring-security-test' } tasks.named('test') { useJUnitPlatform() }제목과 같이 오류가 이렇게 떠서 해당 프로세스 id를 Kill 했습니다 kil 하고 다시 8686으로 실행하면 오류 없이 잘 실행됩니다 그런데 문제는 재실행을 하면 똑같은 오류가 뜹니다.. 어떤 게 문제인지 알려주세요 ㅜㅜ!!

하루의_spring · Answer

저 외람된 말씀이지만 smtp 토큰 노출 되었습니다 .. 폐기하시고 새로 받으세요 ...

Qs · Answer

포트 8686에 프로세스가 작동하고 있으니깐 중복 에러 뜨는거네요

kenu,전독시 · Answer

devtools 있으면 자동 재시작 됩니다. developmentOnly 'org.springframework.boot:spring-boot-devtools'https://barbera.tistory.com/47 Spring Boot Devtools 사용법

Web server failed to start. Port 8686 was already in use.

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