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<div style='display: inline'> <h1 style='font-family: Malgun Gothic, Consolas; font-size: 20pt; color: #006699; text-align: center; font-weight: bold'>Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode)</h1> <p> 지난 글에서,<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > IntelliJ + Spring Framework 프로젝트 생성 ; <a target='tab' href='https://www.sysnet.pe.kr/2/0/12757'>https://www.sysnet.pe.kr/2/0/12757</a> </pre> <br /> pom.xml에 war 패키징 옵션만 넣고,<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > <a target='tab' href='https://www.sysnet.pe.kr/2/0/12675'><packaging>war</packaging></a> </pre> <br /> maven package 명령을 실행했더니 다음과 같은 오류가 발생합니다.<br /> <br /> <div style='BACKGROUND-COLOR: #ccffcc; padding: 10px 10px 5px 10px; MARGIN: 0px 10px 10px 10px; FONT-FAMILY: Malgun Gothic, Consolas, Verdana; COLOR: #005555'> Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.2:war (default-war) on project spring-sample-01: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode)<br /> </div><br /> <br /> 검색 결과 다음과 같은 글이 있습니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > [Maven] package 할 시 발생하는 'webxml attribute is required' 에러 ; <a target='tab' href='http://1004lucifer.blogspot.com/2017/06/maven-package-webxml-attribute-is.html'>http://1004lucifer.blogspot.com/2017/06/maven-package-webxml-attribute-is.html</a> </pre> <br /> 위의 지시에 따라 "<failOnMissingWebXml>false</failOnMissingWebXml>" 설정을 추가하면 실제로 에러가 발생하지 않습니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > // pom.xml <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <span style='color: blue; font-weight: bold'><failOnMissingWebXml>false</failOnMissingWebXml></span> </configuration> </plugin> </plugins> </build> </pre> <br /> 그런데, 좀 이해가 안 되는 것이 있다면 분명히 현재 프로젝트에는 /web/WEB-INF/web.xml 파일이 있습니다. 하지만 위의 오류 메시지에서는 그걸 찾지 못해 발생하는 듯한데요, 좀 더 검색을 해보니 더 나은 해결책이 나옵니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > "webxml attribute is required" error in Maven ; <a target='tab' href='https://stackoverflow.com/questions/5351948/webxml-attribute-is-required-error-in-maven'>https://stackoverflow.com/questions/5351948/webxml-attribute-is-required-error-in-maven</a> </pre> <br /> 그래서 다음과 같이 webXml 노드를 추가하면 해결이 됩니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <span style='color: blue; font-weight: bold'><webXml>web\WEB-INF\web.xml</webXml></span> </configuration> </plugin> </plugins> </build> </pre> <a name='war_size'></a> <br /> 어쨌든 war 파일이 생성되긴 했는데, <a target='tab' href='https://www.sysnet.pe.kr/2/0/12690#war_size'>크기가 3KB라는 것</a>이 좀 걸리는군요. ^^;<br /> <br /> <hr style='width: 50%' /><br /> <br /> 일단 war 문제는 해결했는데, 여전히 IntelliJ의 빌드 로그를 보면 이런 경고가 나옵니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > "C:\Program Files\Java\jdk1.8.0_161\bin\java.exe" -Dmaven.multiModuleProjectDirectory=D:\intellij\spring-sample-01 "-Dmaven.home=C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3" "-Dclassworlds.conf=C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3\bin\m2.conf" "-Dmaven.ext.class.path=C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven-event-listener.jar" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\lib\idea_rt.jar=30250:C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3\boot\plexus-classworlds-2.6.0.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3\boot\plexus-classworlds.license" org.codehaus.classworlds.Launcher -Didea.version=2021.1.3 package [INFO] Scanning for projects... [WARNING] <span style='color: blue; font-weight: bold'>[WARNING] Some problems were encountered while building the effective model for org.example:spring-sample-01:war:1.0-SNAPSHOT</span> <span style='color: blue; font-weight: bold'>[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-war-plugin is missing. @ line 23, column 21</span> [WARNING] [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build. [WARNING] [WARNING] For this reason, future Maven versions might no longer support building such malformed projects. ...[생략]... </pre> <br /> 검색해 보면, <br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > Maven 3 warnings about build.plugins.plugin.version ; <a target='tab' href='https://stackoverflow.com/questions/4123044/maven-3-warnings-about-build-plugins-plugin-version'>https://stackoverflow.com/questions/4123044/maven-3-warnings-about-build-plugins-plugin-version</a> </pre> <a name='plugin_ver'></a> <br /> version을 기입하면 된다고 합니다. 또한, 그 버전을 구하는 방법까지 소개하고 있는데요, 이를 위해 IntelliJ에서 빌드 시 사용하는 maven 경로를 알아야 했는데 위의 빌드 로그에 다음과 같은 경로를 통해 알 수 있습니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > "-Dmaven.home=C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3" </pre> <br /> 따라서 이렇게 실행해 주면,<br /> <br /> <div style='BACKGROUND-COLOR: #ccffcc; padding: 10px 10px 5px 10px; MARGIN: 0px 10px 10px 10px; FONT-FAMILY: Malgun Gothic, Consolas, Verdana; COLOR: #005555'> "C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\bin\mvn" help:describe -DartifactId=maven-war-plugin -DgroupId=org.apache.maven.plugins<br /> </div><br /> <br /> 다음의 출력을 얻어,<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > Name: Apache Maven WAR Plugin Description: Builds a Web Application Archive (WAR) file from the project output and its dependencies. Group Id: org.apache.maven.plugins Artifact Id: maven-war-plugin <span style='color: blue; font-weight: bold'>Version: 3.2.2</span> Goal Prefix: war </pre> <br /> 이렇게 마무리할 수 있습니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <span style='color: blue; font-weight: bold'><version>3.2.2</version></span> <configuration> <webXml>web\WEB-INF\web.xml</webXml> </configuration> </plugin> </plugins> </build> </pre> <br /> <hr style='width: 50%' /><br /> <br /> 휴~~~ 마지막 빌드 경고입니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > ...[생략]... [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ spring-sample-01 --- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent! ...[생략]... [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ spring-sample-01 --- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent! ...[생략]... </pre> <br /> 검색 결과, project.build.sourceEncoding 값을 pom.xml에 추가하면 해결됩니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > <properties> <maven.compiler.source>8</maven.compiler.source> <maven.compiler.target>8</maven.compiler.target> <span style='color: blue; font-weight: bold'><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></span> </properties> </pre> <br /> 이제야 maven install 단계까지 아무런 경고 없이 실행이 됩니다.<br /> <br /> <pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' > "C:\Program Files\Java\jdk1.8.0_161\bin\java.exe" -Dmaven.multiModuleProjectDirectory=D:\intellij\spring-sample-01 "-Dmaven.home=C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3" "-Dclassworlds.conf=C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3\bin\m2.conf" "-Dmaven.ext.class.path=C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven-event-listener.jar" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\lib\idea_rt.jar=1034:C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3\boot\plexus-classworlds-2.6.0.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2021.1.2\plugins\maven\lib\maven3\boot\plexus-classworlds.license" org.codehaus.classworlds.Launcher -Didea.version=2021.1.3 install [INFO] Scanning for projects... [INFO] [INFO] --------------------< org.example:spring-sample-01 >-------------------- [INFO] Building Spring Framework 1.0-SNAPSHOT [INFO] --------------------------------[ war ]--------------------------------- [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ spring-sample-01 --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ spring-sample-01 --- [INFO] Nothing to compile - all classes are up to date [INFO] [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ spring-sample-01 --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] skip non existing resourceDirectory D:\intellij\spring-sample-01\src\test\resources [INFO] [INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ spring-sample-01 --- [INFO] Nothing to compile - all classes are up to date [INFO] [INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ spring-sample-01 --- [INFO] No tests to run. [INFO] [INFO] --- maven-war-plugin:3.2.2:war (default-war) @ spring-sample-01 --- [INFO] Packaging webapp [INFO] Assembling webapp [spring-sample-01] in [D:\intellij\spring-sample-01\target\spring-sample-01-1.0-SNAPSHOT] [INFO] Processing war project [INFO] Webapp assembled in [14 msecs] [INFO] Building war: D:\intellij\spring-sample-01\target\spring-sample-01-1.0-SNAPSHOT.war [INFO] [INFO] --- maven-install-plugin:2.4:install (default-install) @ spring-sample-01 --- [INFO] Installing D:\intellij\spring-sample-01\target\spring-sample-01-1.0-SNAPSHOT.war to %USERPROFILE%\.m2\repository\org\example\spring-sample-01\1.0-SNAPSHOT\spring-sample-01-1.0-SNAPSHOT.war [INFO] Installing D:\intellij\spring-sample-01\pom.xml to %USERPROFILE%\.m2\repository\org\example\spring-sample-01\1.0-SNAPSHOT\spring-sample-01-1.0-SNAPSHOT.pom [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.875 s [INFO] Finished at: 2021-08-07T22:49:15+09:00 [INFO] ------------------------------------------------------------------------ Process finished with exit code 0 </pre> </p><br /> <br /><hr /><span style='color: Maroon'>[이 글에 대해서 여러분들과 의견을 공유하고 싶습니다. 틀리거나 미흡한 부분 또는 의문 사항이 있으시면 언제든 댓글 남겨주십시오.]</span> </div>
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