{"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":"C\u1ea5u h\u00ecnh Java Log4j2 trong D\u1ef1 \u00e1n c\u1ee7a b\u1ea1n"},"content":{"rendered":"\n
  1. S\u1ef1 ph\u1ee5 thu\u1ed9c r\u00e0ng bu\u1ed9c c\u1ee7a Log4j2 v\u00e0 SLF4j
    \u0110\u1ec3 Log4j2 ho\u1ea1t \u0111\u1ed9ng v\u1edbi SLF4J, ch\u00fang ta c\u1ea7n bao g\u1ed3m 3 ph\u1ea7n ph\u1ee5 thu\u1ed9c sau.
    log4j-slf4j-impl.jar \u2013 Li\u00ean k\u1ebft Log4j 2 SLF4J. N\u00f3 cho ph\u00e9p c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a theo API SLF4J s\u1eed d\u1ee5ng Log4j2 l\u00e0m ph\u01b0\u01a1ng th\u1ee9c tri\u1ec3n khai.
    log4j-api.jar \u2013 cung c\u1ea5p c\u00e1c th\u00e0nh ph\u1ea7n b\u1ed9 \u0111i\u1ec1u h\u1ee3p c\u1ea7n thi\u1ebft cho ng\u01b0\u1eddi tri\u1ec3n khai \u0111\u1ec3 t\u1ea1o tri\u1ec3n khai ghi nh\u1eadt k\u00fd.
    log4j-core.jar \u2013 C\u00e1c l\u1edbp tri\u1ec3n khai Log4j c\u1ed1t l\u00f5i.
    C\u00e1c ph\u1ea7n ph\u1ee5 thu\u1ed9c Maven v\u00e0 Gradle c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c sao ch\u00e9p nh\u01b0 d\u01b0\u1edbi \u0111\u00e2y.
    pom.xml<\/li><\/ol>\n\n\n\n

    <ph\u1ee5 thu\u1ed9c>
    <groupId>org.apache.logging.log4j<\/groupId>
    <artifactId>log4j-api<\/artifactId>
    <version>2.15.0<\/version> <\/dependency>
    <ph\u1ee5 thu\u1ed9c>
    <groupId>org.apache.logging.log4j<\/groupId>
    <artifactId>log4j-core<\/artifactId>
    <version>2.15.0<\/phi\u00ean b\u1ea3n>
    <\/ph\u1ee5 thu\u1ed9c> <ph\u1ee5 thu\u1ed9c>
    <groupId>org.apache.logging.log4j<\/groupId>
    <artifactId>log4j-slf4j-impl<\/artifactId>
    <version>2.15.0<\/phi\u00ean b\u1ea3n>
    <\/ph\u1ee5 thu\u1ed9c><\/p>\n\n\n\n

    1. T\u1ea1o T\u1ec7p log4j2.xml trong th\u01b0 m\u1ee5c T\u00e0i nguy\u00ean d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n
      V\u00ed d\u1ee5 v\u1edbi vi\u1ec7c cu\u1ed9n t\u1ec7p v\u00e0 s\u1eed d\u1ee5ng c\u00e1c bi\u1ebfn h\u1ec7 th\u1ed1ng v\u00e0 \u0111\u01b0\u1ee3c t\u1ea1o \u0111\u1ec3 s\u1eed d\u1ee5ng trong m\u00e1y ch\u1ee7 Wildfly:<\/li><\/ol>\n\n\n\n

      <?xml version=”1.0″ m\u00e3 h\u00f3a=”UTF-8″?>
      Tr\u1ea1ng th\u00e1i c\u1ea5u h\u00ecnh <=”${env:LOG_LEVEL}”>
      <Appenders>
      <RollingFile name=”LogToFile” fileName=”${env:JBOSS_HOME}\/standalone\/log\/xxx.log” filePattern=”${env:JBOSS_HOME}\/standalone\/log\/xxx.log-%d{yyyy-MM-dd}”> <PatternLayout>
      <pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} – %msg%n <\/pattern> <\/PatternLayout>
      <Ch\u00ednh s\u00e1ch>
      <TimeBasedTriggeringPolicy interval=”1″ modulate=”true” \/>
      <OnStartupTriggeringPolicy \/>
      <\/Policies> <!– T\u1ed1i \u0111a 10 t\u1ec7p s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o m\u1ed7i ng\u00e0y –>
      <M\u1eb7c \u0111\u1ecbnhRolloverChi\u1ebfn l\u01b0\u1ee3c max=”20″>
      <Delete basePath=”${env:JBOSS_HOME}\/standalone\/log\/” maxDepth=”10″>
      <!– X\u00f3a t\u1ea5t c\u1ea3 c\u00e1c t\u1ec7p c\u0169 h\u01a1n 30 ng\u00e0y –>
      <IfLastModified age=”30d” \/>
      <\/X\u00f3a>
      <\/M\u1eb7c \u0111\u1ecbnhRolloverChi\u1ebfn l\u01b0\u1ee3c>
      <\/RollingFile>
      <\/Appenders>
      <Logger>
      <!– tr\u00e1nh c\u00e1c nh\u1eadt k\u00fd tr\u00f9ng l\u1eb7p v\u1edbi additivity=false –>
      <Logger name=”xxx-be” level=”${env:LOG_LEVEL}” additivity=”false”> <AppenderRef ref=”LogToFile”\/>
      <\/Logger>
      <Root c\u1ea5p=”${env:LOG_LEVEL}”>
      <AppenderRef ref=”LogToFile”\/>
      <\/Root>
      <\/Logger>
      <\/C\u1ea5u h\u00ecnh><\/p>\n\n\n\n

      1. log4j2.xml<\/li>
      2. S\u1eed d\u1ee5ng Logger trong m\u00e3
        nh\u1eadp org.apache.logging.log4j.Logger;
        Tr\u00ecnh ghi nh\u1eadt k\u00fd = LogManager.getLogger(“xxx-be”);
        logger.info(“\u0111\u00e3 b\u1eaft \u0111\u1ea7u”);<\/li><\/ol>\n\n\n\n

        T\u00f4i c\u1ea7n c\u1ea3 ng\u00e0y \u0111\u1ec3 l\u00e0m cho n\u00f3 ho\u1ea1t \u0111\u1ed9ng. T\u00f4i hy v\u1ecdng \u0111i\u1ec1u n\u00e0y s\u1ebd gi\u00fap \u00edch cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n.<\/p>\n","protected":false},"excerpt":{"rendered":"

        S\u1ef1 ph\u1ee5 thu\u1ed9c r\u00e0ng bu\u1ed9c c\u1ee7a Log4j2 v\u00e0 SLF4j\u0110\u1ec3 Log4j2 ho\u1ea1t \u0111\u1ed9ng v\u1edbi SLF4J, ch\u00fang ta c\u1ea7n bao g\u1ed3m 3 ph\u1ea7n ph\u1ee5 thu\u1ed9c sau. log4j-slf4j-impl.jar \u2013 Li\u00ean k\u1ebft Log4j 2 SLF4J. N\u00f3 cho ph\u00e9p c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a theo API SLF4J s\u1eed d\u1ee5ng Log4j2 l\u00e0m ph\u01b0\u01a1ng th\u1ee9c tri\u1ec3n khai.log4j-api.jar \u2013 cung c\u1ea5p c\u00e1c […]<\/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-cau-hinh-log4j2","tag-log4j2","tag-log4j2-duoi-con-ruoi-hoang-da","tag-log4j2-su-dung-bien-moi-truong","tag-log4j2-su-dung-bien-he-thong"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4CoHV-38","jetpack-related-posts":[{"id":247,"url":"https:\/\/vkrastev1blog.com\/2024\/04\/11\/how-to-create-pdf-from-html-or-image-using-java-pdfbox-framework\/","url_meta":{"origin":194,"position":0},"title":"C\u00e1ch t\u1ea1o PDF t\u1eeb HTML ho\u1eb7c h\u00ecnh \u1ea3nh b\u1eb1ng khung java pdfbox","author":"vkrastev2014","date":"11.04.2024","format":false,"excerpt":"Following example code here: In pom.xml insert or get the jar files and add them to the java project if you don't use maven jitpack.io<\/id> https:\/\/jitpack.io<\/url> <\/repository> <\/repositories> org.apache.pdfbox<\/groupId> pdfbox<\/artifactId> 3.0.2<\/version> <\/dependency> com.github.hkirk<\/groupId> java-html2image<\/artifactId> 0.9<\/version> <\/dependency> and Java code here\u2026","rel":"","context":"In "Java"","block_context":{"text":"Java","link":"https:\/\/vkrastev1blog.com\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":217,"url":"https:\/\/vkrastev1blog.com\/2022\/05\/20\/eclipse-how-to-use-the-jpa-static-metamodel-classes-while-writing-criteria-queries-in-hibernate\/","url_meta":{"origin":194,"position":1},"title":"Eclipse how to use the JPA static metamodel classes while writing criteria queries in Hibernate","author":"vkrastev2014","date":"20.05.2022","format":false,"excerpt":"When you use Maven you have to add in your POM following dependency: org.hibernate<\/groupId> hibernate-jpamodelgen<\/artifactId> 5.3.7.Final<\/version> <\/dependency> Now you have to add folder target\\generated-sources\\annotations to your classpath as by default, the classes will be generated in this folder only. You go in Project Build Path -> Configure Build Path\u2026","rel":"","context":"In "Java"","block_context":{"text":"Java","link":"https:\/\/vkrastev1blog.com\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":208,"url":"https:\/\/vkrastev1blog.com\/2022\/04\/03\/maven-excluding-jars-from-war-file\/","url_meta":{"origin":194,"position":2},"title":"Maven lo\u1ea1i tr\u1eeb Jars kh\u1ecfi t\u1ec7p WAR","author":"vkrastev2014","date":"03.04.2022","format":false,"excerpt":"I have had a problem to exclude some Jars from War File with maven. You can do it using maven-war-plugin ... maven-war-plugin<\/artifactId> 3.3.2<\/version> WEB-INF\/lib\/xxxx*.jar<\/packagingExcludes> <\/configuration> <\/plugin> <\/plugins> <\/build> ... <\/project>","rel":"","context":"In "Java"","block_context":{"text":"Java","link":"https:\/\/vkrastev1blog.com\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":83,"url":"https:\/\/vkrastev1blog.com\/2014\/05\/16\/how-to-set-up-the-classpath-in-jar-manifest\/","url_meta":{"origin":194,"position":3},"title":"C\u00e1ch thi\u1ebft l\u1eadp \u0111\u01b0\u1eddng d\u1eabn l\u1edbp trong t\u1ec7p k\u00ea khai jar","author":"vkrastev2014","date":"16.05.2014","format":false,"excerpt":"You must break after exactly 70 characters. Otherwise the next line is not going to be treated as a continuation from the previous. There should be a leading space in all the wrapped lines, with a leading space for every line different from that with \"Class-path:\". And don't forget a\u2026","rel":"","context":"In "Java"","block_context":{"text":"Java","link":"https:\/\/vkrastev1blog.com\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":189,"url":"https:\/\/vkrastev1blog.com\/2022\/03\/24\/exclude-pom-dependency-from-all-dependencies-in-java-project-eclipse\/","url_meta":{"origin":194,"position":4},"title":"Lo\u1ea1i tr\u1eeb s\u1ef1 ph\u1ee5 thu\u1ed9c pom kh\u1ecfi t\u1ea5t c\u1ea3 c\u00e1c ph\u1ee5 thu\u1ed9c trong Java Project Eclipse","author":"vkrastev2014","date":"24.03.2022","format":false,"excerpt":"I have had a problem to exclude a dependency from all dependencies in POM file. If you dont use Eclipse you have to put exlusioin clauses on all dependencies in POM file for this dependency. I use Eclipse and you can do following. Open the Project in Eclipse in Package\u2026","rel":"","context":"In "Java"","block_context":{"text":"Java","link":"https:\/\/vkrastev1blog.com\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":232,"url":"https:\/\/vkrastev1blog.com\/2022\/10\/31\/install-solr-8-under-windows-as-service\/","url_meta":{"origin":194,"position":5},"title":"C\u00e0i \u0111\u1eb7t Solr 8 trong Windows d\u01b0\u1edbi d\u1ea1ng D\u1ecbch v\u1ee5","author":"vkrastev2014","date":"31.10.2022","format":false,"excerpt":"Here is short explained how to install Solr 8 as Windows service Download nssm from https:\/\/nssm.cc\/release\/nssm-2.24.zip and extract it to C:\\Program Files\\nssm Donwload Solr 8 from https:\/\/dlcdn.apache.org\/lucene\/solr\/8.11.2\/solr-8.11.2.zip and extract it to C:\\web\\solr Java Version 8 or later have to be istalled and JAVA_HOME environment variable set Create Windows Service solr8.\u2026","rel":"","context":"In "Ng\u01b0\u1eddi kh\u00e1c"","block_context":{"text":"Ng\u01b0\u1eddi kh\u00e1c","link":"https:\/\/vkrastev1blog.com\/category\/nguoi-khac\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"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}]}}