{"id":194,"date":"2022-03-30T15:32:08","date_gmt":"2022-03-30T15:32:08","guid":{"rendered":"https:\/\/vkrastev1blog.com\/?p=194"},"modified":"2022-03-31T13:31:11","modified_gmt":"2022-03-31T13:31:11","slug":"java-configure-log4j2-in-your-project","status":"publish","type":"post","link":"https:\/\/vkrastev1blog.com\/2022\/03\/30\/java-configure-log4j2-in-your-project\/","title":{"rendered":"Java configure Log4j2 dans votre projet"},"content":{"rendered":"\n
  1. D\u00e9pendances de liaison Log4j2 et SLF4j
    Pour que Log4j2 fonctionne avec SLF4J, nous devons inclure les 3 d\u00e9pendances suivantes.
    log4j-slf4j-impl.jar \u2013 Liaison Log4j 2 SLF4J. Il permet aux applications cod\u00e9es sur l’API SLF4J d’utiliser Log4j2 comme impl\u00e9mentation.
    log4j-api.jar \u2013 fournit les composants d’adaptateur n\u00e9cessaires aux impl\u00e9menteurs pour cr\u00e9er une impl\u00e9mentation de journalisation.
    log4j-core.jar \u2013 classes d’impl\u00e9mentation de base de Log4j.
    Les d\u00e9pendances Maven et Gradle peuvent \u00eatre copi\u00e9es comme ci-dessous.
    pom.xml<\/li><\/ol>\n\n\n\n

    D\u00e9pendance <>
    <groupId>org.apache.logging.log4j<\/groupId>
    <artifactId>log4j-api<\/artifactId>
    <version>2.15.0<\/version> <\/d\u00e9pendance>
    D\u00e9pendance <>
    <groupId>org.apache.logging.log4j<\/groupId>
    <artifactId>log4j-core<\/artifactId>
    <version>2.15.0<\/version>
    <\/d\u00e9pendance> <d\u00e9pendance>
    <groupId>org.apache.logging.log4j<\/groupId>
    <artifactId>log4j-slf4j-impl<\/artifactId>
    <version>2.15.0<\/version>
    <\/d\u00e9pendance><\/p>\n\n\n\n

    1. Cr\u00e9ez le fichier log4j2.xml dans votre dossier de ressources du projet
      Exemple avec un roulement de fichier et utilisant des variables syst\u00e8me et con\u00e7u pour \u00eatre utilis\u00e9 sous le serveur wildfly\u00a0:<\/li><\/ol>\n\n\n\n

      <?xml version=”1.0″ encodage=”UTF-8″?>
      <Statut de configuration=”${env:LOG_LEVEL}”>
      <Annexes>
      <RollingFile name=”LogToFile” fileName=”${env:JBOSS_HOME}\/standalone\/log\/xxx.log” filePattern=”${env:JBOSS_HOME}\/standalone\/log\/xxx.log-%d{aaaa-MM-jj}”> <PatternLayout>
      <pattern>[%-5level] %d{aaaa-MM-jj HH:mm:ss.SSS} [%t] %c{1} – %msg%n <\/pattern> <\/PatternLayout>
      <Politiques>
      <TimeBasedTriggeringPolicy interval=”1″ module=”true” \/>
      <OnStartupTriggeringPolicy \/>
      <\/Policies> <\u00a0!–\u00a010\u00a0fichiers maximum seront cr\u00e9\u00e9s chaque jour –>
      <DefaultRolloverStrategy max=”20″>
      <Delete basePath=”${env:JBOSS_HOME}\/standalone\/log\/” maxDepth=”10″>
      <!– Supprimer tous les fichiers datant de plus de 30 jours –>
      <IfLastModified \u00e2ge=”30j” \/>
      <\/Supprimer>
      <\/Strat\u00e9gie de roulement par d\u00e9faut>
      <\/RollingFile>
      <\/Annexes>
      <Enregistreurs>
      <!– \u00e9vitez les journaux dupliqu\u00e9s avec additivity=false –>
      <Logger name=”xxx-be” level=”${env:LOG_LEVEL}” additivity=”false”> <AppenderRef ref=”LogToFile”\/>
      <\/Enregistreur>
      <Root level=”${env:LOG_LEVEL}”>
      <AppenderRef ref=”LogToFile”\/>
      <\/Racine>
      <\/Enregistreurs>
      <\/Configuration><\/p>\n\n\n\n

      1. log4j2.xml<\/li>
      2. Utilisation de Logger dans le code
        importer org.apache.logging.log4j.Logger\u00a0;
        Enregistreur logger = LogManager.getLogger(“xxx-be”);
        logger.info(“d\u00e9marr\u00e9”);<\/li><\/ol>\n\n\n\n

        J’avais besoin d’une journ\u00e9e enti\u00e8re pour que cela fonctionne. J’esp\u00e8re que cela aidera les d\u00e9veloppeurs.<\/p>\n","protected":false},"excerpt":{"rendered":"

        D\u00e9pendances de liaison Log4j2 et SLF4jPour que Log4j2 fonctionne avec SLF4J, nous devons inclure les 3 d\u00e9pendances suivantes. log4j-slf4j-impl.jar \u2013 Liaison Log4j 2 SLF4J. Il permet aux applications cod\u00e9es sur l’API SLF4J d’utiliser Log4j2 comme impl\u00e9mentation.log4j-api.jar \u2013 forritt les composants d’adapter n\u00e9cessaires aux impl\u00e9menteurs pour cr\u00e9er une impl\u00e9mentation de journalisation.log4j-core.jar \u2013 classes d’ impl\u00e9mentation de base […]<\/p>\n","protected":false},"author":65283547,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1017],"tags":[731731598,177442530,731731587,731731575,731731561],"class_list":["post-194","post","type-post","status-publish","format-standard","hentry","category-java","tag-configurer-log4j2","tag-log4j2","tag-log4j2-sous-wildfly","tag-log4j2-en-utilisant-des-variables-denvironnement","tag-log4j2-utilisant-la-variable-systeme"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4CoHV-38","jetpack-related-posts":[],"jetpack_likes_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/posts\/194","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/users\/65283547"}],"replies":[{"embeddable":true,"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/comments?post=194"}],"version-history":[{"count":11,"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/posts\/194\/revisions"}],"predecessor-version":[{"id":207,"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/posts\/194\/revisions\/207"}],"wp:attachment":[{"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/media?parent=194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/categories?post=194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vkrastev1blog.com\/wp-json\/wp\/v2\/tags?post=194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}