Question

我正在尝试使用JBoss焊接编写java SE swing应用程序。 Weld使用jar中的以下log4j.xml文件使用log4j配置日志记录：

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

    JBoss, Home of Professional Open Source
    Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual
    contributors by the @authors tag. See the copyright.txt in the
    distribution for a full listing of individual contributors.

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

-->

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

    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <param name="Target" value="System.out"/>
        <layout class="org.apache.log4j.PatternLayout">
            <!-- The default pattern: Date Priority [Category] Message\n -->
            <param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c{2}] %m%n"/>
        </layout>
        <filter class="org.apache.log4j.varia.StringMatchFilter">
         <param name="AcceptOnMatch" value="false" />
         <param name="StringToMatch" value="Failure while notifying an observer of event [a]" />
        </filter>
    </appender>

    <!-- ############### Weld logging ################### -->

    <category name="org.jboss.weld">
        <priority value="INFO"/>
    </category>

    <root>
        <priority value="INFO"/>
        <appender-ref ref="CONSOLE"/>
    </root>

</log4j:configuration>

我想在我的应用程序中完全禁用日志记录。我尝试禁用它，提供log4j.properties文件，如下所示：

log4j.debug=FALSE
log4j.rootLogger=OFF, CONSOLE

无论我尝试做什么，我都无法阻止来自Weld的log4j消息显示在控制台中。我想做的就是完全禁用日志记录。但是怎么样？

Answer 1

发布此问题后不久，我发现了答案。创建 log4j.xml 文件以覆盖第三方JAR中的默认值。

以下是此主题的具体示例：

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

    <appender name="CA" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%m%n"/>
        </layout>
    </appender>

    <!-- 
        If you want to enable logging for the application
        but wish to disable logging for a specific package
        then use this, where org.jboss is the package
        for which you wish to disable logging.
    -->
    <category name="org.jboss">
        <priority value="off"/>
    </category>

    <root>
        <priority value="off"/> <!--Notice this disables all logging-->
        <appender-ref ref="CA"/>
    </root>

</log4j:configuration>

Answer 2

我认为第三部分jar的默认日志配置不会将任何消息打印到STDOUT或FILE。

但是如果你想要覆盖没有文档的默认日志配置，最好的解决方案是解压缩jar文件并找出它如何加载配置。

Answer 3

如果存在log4j xml格式配置文件，则它优先于属性文件。这是log4j定义的行为。因此，您可以将配置放在log4j.xml中，它应该生效。

如何在第三方jar中禁用log4j？

3 个答案: