Question

myController.java

 private static final Logger log = Logger.getLogger(myController.class
  .getName());
@GET
  @Path("/testDebug")
  public String testDebug(@Context final ServletContext context)
  {
    log.error("This is an error message");
    log.debug("This is a debug message");
    log.fatal("This is fatal message");
    log.warn("This is a warn message");
    log.info("This is a info message");

    return "Test Page.  Debug Mode is on =" + log.isDebugEnabled();
  }

的JBoss-的log4j.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<!-- ===================================================================== -->
<!--                                                                       -->
<!--  Log4j Configuration                                                  -->
<!--                                                                       -->
<!-- ===================================================================== -->

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">

   <!-- ================================= -->
   <!-- Preserve messages in a local file -->
   <!-- ================================= -->

   <!-- A time/date based rolling appender -->
   <appender name="FILE" class="org.jboss.logging.appender.DailyRollingFileAppender">
      <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>
      <param name="File" value="${jboss.server.log.dir}/server.log"/>
      <param name="Append" value="false"/>

      <!-- Rollover at midnight each day -->
      <param name="DatePattern" value="'.'yyyy-MM-dd"/>

      <layout class="org.apache.log4j.PatternLayout">
         <!-- The default pattern: Date Priority [Category] Message\n -->
         <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>

          -->
      </layout>
   </appender>

   <!-- ============================== -->
   <!-- Append messages to the console -->
   <!-- ============================== -->

   <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
      <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>
      <param name="Target" value="System.out"/>
      <param name="Threshold" value="DEBUG"/>

      <layout class="org.apache.log4j.PatternLayout">
         <!-- The default pattern: Date Priority [Category] Message\n -->
         <param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/>
      </layout>
   </appender>


   <!-- ================ -->
   <!-- Limit categories -->
   <!-- ================ -->

   <!-- Limit the org.apache category to INFO as its DEBUG is verbose -->
   <category name="org.apache">
      <priority value="INFO"/>
   </category>

   <!-- Limit the org.jboss.serial (jboss-serialization) to INFO as its DEBUG is verbose -->
   <category name="org.jboss.serial">
      <priority value="INFO"/>
   </category>

   <!-- Limit the org.jgroups category to WARN as its INFO is verbose -->
   <category name="org.jgroups">
      <priority value="WARN"/>
   </category>

   <!-- Limit the jacorb category to WARN as its INFO is verbose -->
   <category name="jacorb">
      <priority value="WARN"/>
   </category>

   <!-- Limit JBoss categories -->
   <category name="org.jboss">
      <priority value="INFO"/>
      <appender-ref ref="CONSOLE"/>
   </category>



   <!-- Limit the JSR77 categories -->
   <category name="org.jboss.management">
      <priority value="INFO"/>
   </category>

   <!-- This is is the package to myController.java -->
   <category name="com.myPackage.src">
      <priority value="DEBUG"/>
   </category>

   <!-- ======================= -->
   <!-- Setup the Root category -->
   <!-- ======================= -->

   <root>
      <appender-ref ref="CONSOLE"/>
      <appender-ref ref="FILE"/>
   </root>

</log4j:configuration>

期望的结果

当路径/testDebug被命中时，会收到消息：“这是一条调试消息”

问题：

我收到所有消息显示， debug

除外

10:29:49,440 INFO  [STDOUT] 10:29:49,440 ERROR [myController] This is an error message
10:29:49,440 INFO  [STDOUT] 10:29:49,440 FATAL [myController] This is fatal message
10:29:49,440 INFO  [STDOUT] 10:29:49,440 WARN  [myController] This is a warn message
10:29:49,440 INFO  [STDOUT] 10:29:49,440 INFO  [myController] This is a info message

为什么我无法显示调试信息？

Answer 1

有关使用Jboss 7.1.1 +查看调试日志记录的更新信息，请参阅this question。

有些观点：

您的班级myController按预期使用日志记录。（另一个答案声称您错误地实例化了记录器;不是真的。）
从项目中删除log4j.xml（或logback.xml等）配置文件（即，从main/resources/META-INF）
在pom.xml中，确保您的slf4j依赖项具有提供的范围（Jboss将提供此功能）。此外，不要包含log4j（或logback等）实现依赖项。例如，这是您的日志记录依赖项部分的样子：
```
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.7</version>
    <scope>provided</scope>
</dependency>
```
确保您的standalone/configuration/standalone.xml文件中包含记录器条目。
```
<logger category="com.myPackage.src">
     <level name="DEBUG"/>
</logger>
```
确保 console-handler 和 periodic-rotating-file-handler 处理程序具有DEBUG级别。（默认情况下，它们是INFO。它们需要是DEBUG，否则您的调试语句将被忽略。）

注意，有一个CLI允许您更新日志记录。我手工操作，但使用CLI可能是明智的。

这是standalone.xml日志记录部分的缩写版本：

    <subsystem xmlns="urn:jboss:domain:logging:2.0">
        <console-handler name="CONSOLE">
            <level name="DEBUG"/>
            <formatter>
                <named-formatter name="COLOR-PATTERN"/>
            </formatter>
        </console-handler>
        <periodic-rotating-file-handler name="FILE" autoflush="true">
            <level name="DEBUG"/>
            <formatter>
                <named-formatter name="PATTERN"/>
            </formatter>
            <file relative-to="jboss.server.log.dir" path="server.log"/>
            <suffix value=".yyyy-MM-dd"/>
            <append value="true"/>
        </periodic-rotating-file-handler>
        <logger category="com.myPackage.src">
            <level name="DEBUG"/>
        </logger>
        <root-logger>
            <level name="INFO"/>
            <handlers>
                <handler name="CONSOLE"/>
                <handler name="FILE"/>
            </handlers>
        </root-logger>
        <formatter name="PATTERN">
            <pattern-formatter pattern="%d{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n"/>
        </formatter>
        <formatter name="COLOR-PATTERN">
            <pattern-formatter pattern="%K{level}%d{HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n"/>
        </formatter>
    </subsystem>

Answer 2

你能尝试这样做吗？

<category name="com.myPackage.src">
      <priority value="DEBUG"/>
   </category>

Answer 3

您的类别定义不正确。当您实例化记录器时，您正在使用Class.getName()，它返回完全限定的类名。您只使用包名称定义记录器类别，这意味着类别com.myPackage.src.myController没有打开调试。

您需要更改实例化记录器的方式

private static final Logger log = Logger.getLogger(myController.class.getPackage().getName());

或更改您的类别定义

<category name="com.myPackage.src.myController">
  <priority value="DEBUG"/>
</category>

一方面，包不应该包含大写字符，类名应该始终以大写字母开头。

Answer 4

Detailed information could be found at: https://docs.jboss.org/author/display/AS71/Logging+Configuration
<subsystem xmlns="urn:jboss:domain:logging:1.0">
   <console-handler name="CONSOLE" autoflush="true">
       <level name="DEBUG"/>
       <formatter>
           <pattern-formatter pattern="%d{HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n"/>
       </formatter>
   </console-handler>
   <periodic-rotating-file-handler name="FILE" autoflush="true">
       <formatter>
           <pattern-formatter pattern="%d{HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n"/>
       </formatter>
       <file relative-to="jboss.server.log.dir" path="server.log"/>
       <suffix value=".yyyy-MM-dd"/>
   </periodic-rotating-file-handler>
   <logger category="com.arjuna">
       <level name="WARN"/>
   </logger>
   [...]
   <root-logger>
       <level name="DEBUG"/>
       <handlers>
           <handler name="CONSOLE"/>
           <handler name="FILE"/>
       </handlers>
   </root-logger>
</subsystem>

1。可以在standalone.xml中进行更改 2.以上解决方案是展示如何查看jboss中日志的调试消息这将解决以上问题

如何让jboss显示log.debug消息？

4 个答案: