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SLF4J + Logback在WildFly中无法记录日志

javalogbackwildfly
26

我在WildFly 8中运行Web应用程序，但由于某种原因它没有记录日志。我使用SLF4J和LOGBACK。日志文件在部署时创建，但是它是空的。我也没有在WildFly日志中看到我的日志语句。

该类包含：

package com.blah.oops;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

static final Logger log = LoggerFactory.getLogger(EndpointImpl.class);

log.debug("request called");

战争包含：

  • WEB-INF\lib\slf4j-api-1.7.5.jar
  • WEB-INF\lib\logback-classic-1.1.1.jar
  • WEB-INF\lib\logback-core-1.1.1.jar
  • WEB-INF\classes\logback.xml

配置文件 logback.xml 包含：

<configuration scan="true" scanPeriod="10 seconds">
    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
        <file>${LOG_PATH}/backend-main.log</file>
        <encoder>
            <pattern>%date %level [%thread] %logger{10} %msg%n</pattern>
        </encoder>
    </appender>

    <!-- PROFILER configuration -->
    <turboFilter class="ch.qos.logback.classic.turbo.MarkerFilter">
        <Marker>PROFILER</Marker>
        <OnMatch>ACCEPT</OnMatch>
        <!--  <OnMatch>DENY</OnMatch> -->
    </turboFilter>

    <logger name="org.eclipse.jetty.util.log" level="info"/>
    <logger name="com.blah" level="debug"/>
    <logger name="org.apache.cxf" level="warn"/>

    <root level="info">
        <appender-ref ref="FILE"/>
    </root>
</configuration>

console.log 包含 logback 初始化：

.[0m.[0m10:19:52,716 INFO  [stdout] (MSC service thread 1-2) 10:19:52,489 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]
.[0m.[0m10:19:52,717 INFO  [stdout] (MSC service thread 1-2) 10:19:52,489 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
.[0m.[0m10:19:52,717 INFO  [stdout] (MSC service thread 1-2) 10:19:52,490 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [vfs:/content/backend.war/WEB-INF/classes/logback.xml]
.[0m.[0m10:19:52,717 INFO  [stdout] (MSC service thread 1-2) 10:19:52,501 |-INFO in ch.qos.logback.core.joran.spi.ConfigurationWatchList@666dc663 - URL [vfs:/content/backend.war/WEB-INF/classes/logback.xml] is not of type file
.[0m.[0m10:19:52,717 INFO  [stdout] (MSC service thread 1-2) 10:19:52,524 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - debug attribute not set
.[0m.[0m10:19:52,717 INFO  [stdout] (MSC service thread 1-2) 10:19:52,529 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - Setting ReconfigureOnChangeFilter scanning period to 10 seconds
.[0m.[0m10:19:52,718 INFO  [stdout] (MSC service thread 1-2) 10:19:52,529 |-INFO in ReconfigureOnChangeFilter{invocationCounter=0} - Will scan for changes in [[]] every 10 seconds.
.[0m.[0m10:19:52,718 INFO  [stdout] (MSC service thread 1-2) 10:19:52,529 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - Adding ReconfigureOnChangeFilter as a turbo filter
.[0m.[0m10:19:52,718 INFO  [stdout] (MSC service thread 1-2) 10:19:52,532 |-ERROR in ch.qos.logback.core.joran.action.PropertyAction - Could not find resource [acquirer.properties].
.[0m.[0m10:19:52,718 INFO  [stdout] (MSC service thread 1-2) 10:19:52,532 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
.[0m.[0m10:19:52,718 INFO  [stdout] (MSC service thread 1-2) 10:19:52,535 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [jettyConsole]
.[0m.[0m10:19:52,718 INFO  [stdout] (MSC service thread 1-2) 10:19:52,572 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.FileAppender]
.[0m.[0m10:19:52,719 INFO  [stdout] (MSC service thread 1-2) 10:19:52,573 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [FILE]
.[0m.[0m10:19:52,719 INFO  [stdout] (MSC service thread 1-2) 10:19:52,575 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Assuming default type [ch.qos.logback.classic.encoder.PatternLayoutEncoder] for [encoder] property
.[0m.[0m10:19:52,719 INFO  [stdout] (MSC service thread 1-2) 10:19:52,576 |-INFO in ch.qos.logback.core.FileAppender[FILE] - File property is set to [/var/log/blah/backend-main.log]
.[0m.[0m10:19:52,719 INFO  [stdout] (MSC service thread 1-2) 10:19:52,591 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [org.eclipse.jetty.util.log] to INFO
.[0m.[0m10:19:52,719 INFO  [stdout] (MSC service thread 1-2) 10:19:52,592 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [com.blah] to DEBUG
.[0m.[0m10:19:52,719 INFO  [stdout] (MSC service thread 1-2) 10:19:52,592 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [org.apache.cxf] to WARN
.[0m.[0m10:19:52,720 INFO  [stdout] (MSC service thread 1-2) 10:19:52,592 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to INFO
.[0m.[0m10:19:52,720 INFO  [stdout] (MSC service thread 1-2) 10:19:52,713 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [FILE] to Logger[ROOT]
.[0m.[0m10:19:52,720 INFO  [stdout] (MSC service thread 1-2) 10:19:52,713 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration.
.[0m.[0m10:19:52,720 INFO  [stdout] (MSC service thread 1-2) 10:19:52,714 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@30fbc21e - Registering current configuration as safe fallback point

我觉得 LOGBACK 配置成功了。但是日志消息丢失了。有什么想法吗？这让我毫无头绪。

我在这里回答了：https://dev59.com/rWEh5IYBdhLWcg3w7nWW#26342226。希望能有所帮助。 - Xiaodong Xie
3个回答
35

WildFly将slf4j作为默认日志依赖项添加。您是否尝试在jboss-deployment-structure.xml描述符中排除主实现（应该放在META-INF目录下）？以下是可以使用的行：

<exclude-subsystems>
  <subsystem name="logging"/>
</exclude-subsystems>
<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
  <deployment>
    <exclusions>
      <module name="org.apache.commons.logging" />
      <module name="org.apache.log4j" />
      <module name="org.jboss.logging" />
      <module name="org.jboss.logging.jul-to-slf4j-stub" />
      <module name="org.jboss.logmanager" />
      <module name="org.jboss.logmanager.log4j" />
      <module name="org.slf4j" />
      <module name="org.slf4j.impl" />
    </exclusions>
  </deployment>
</jboss-deployment-structure>
2
我刚找到了这个问题，排除 <subsystem name="logging" /> 有所帮助。谢谢，不必在意。https://dev59.com/rWEh5IYBdhLWcg3w7nWW?rq=1 - Leos Literak
我也是。有趣的是，当你输入问题时和问题实际提交时，相似的问题会有所不同。 - Leos Literak
1
我的看法是：我会使用服务器已经提供的日志记录工具。不过默认情况下将其放在应用程序类路径上有点奇怪，因为在 JBoss 7.x 中，我必须显式地将日志记录模块放在应用程序的类路径上。 - Gimby
1
当使用Maven（或Eclipse / Maven）时，JBoss描述符必须放置在src/main/webapp/META-INF/jboss-deployment-structure.xml中。不要将其放置在src/main/resources/META-INF/...下面。 - Agustí Sánchez
jboss-deployment-structure.xml 应该放在 WEB-INF 而不是 META-INF 中，不仅 RedHat 的文档这么说，而且在我的 SpringMVC 应用程序中只有当我把它放在 WEB-INF 中才能正常工作。 - Felipe Leão
显示剩余2条评论
12

Wildfly默认使用slf4j作为日志记录，如果你想使用log4j，则需要告诉jboss不要使用slf4j。你可以使用以下jboss-deployment-structure.xml文件完成这个操作。

<jboss-deployment-structure>
  <deployment>
     <!-- exclude-subsystem prevents a subsystems deployment unit processors running on a deployment -->
     <!-- which gives basically the same effect as removing the subsystem, but it only affects single deployment -->
     <exclude-subsystems>
        <subsystem name="logging" />
    </exclude-subsystems>
  </deployment>
</jboss-deployment-structure>
1

假设您的容器支持嵌套式的类加载，那么可以通过在每个应用程序中嵌入slf4j和logback Jar文件的副本来实现日志记录的分离。

对于Web应用程序，在将slf4j和logback jar文件放置在Web应用程序的WEB-INF/lib目录下即可为每个Web应用程序提供单独的日志记录环境。当logback加载到内存中时，将会选择放置在WEB-INF/classes下的logback.xml配置文件的一个副本。

通过容器提供的类加载器隔离功能，每个Web应用程序将加载其自己的LoggerContext副本，以便选择它自己的logback.xml副本。

您可以按照本帖子所述的解决方案配置步骤进行操作：

https://www.hhutzler.de/blog/using-logback-for-your-wildfly-project/

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