当我在intellij Idea中运行main方法时,我的项目中有log4j 2,它正确地打印日志。
当我使用maven-shade-plugin包项目到jar文件,并运行jar作为独立的应用程序时,它显示错误:
java -cp软件包. jar com.xxx.testMain
控制台输出
ERROR StatusLogger Unrecognized format specifier [d]
ERROR StatusLogger Unrecognized conversion specifier [d] starting at position 16 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [thread]
ERROR StatusLogger Unrecognized conversion specifier [thread] starting at position 25 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [level]
ERROR StatusLogger Unrecognized conversion specifier [level] starting at position 35 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [logger]
ERROR StatusLogger Unrecognized conversion specifier [logger] starting at position 47 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [msg]
ERROR StatusLogger Unrecognized conversion specifier [msg] starting at position 54 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [n]
ERROR StatusLogger Unrecognized conversion specifier [n] starting at position 56 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [d]
ERROR StatusLogger Unrecognized conversion specifier [d] starting at position 16 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [thread]
ERROR StatusLogger Unrecognized conversion specifier [thread] starting at position 25 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [level]
ERROR StatusLogger Unrecognized conversion specifier [level] starting at position 35 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [logger]
ERROR StatusLogger Unrecognized conversion specifier [logger] starting at position 47 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [msg]
ERROR StatusLogger Unrecognized conversion specifier [msg] starting at position 54 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [n]
ERROR StatusLogger Unrecognized conversion specifier [n] starting at position 56 in conversion pattern.
pom.xml配置。log4j2.version = 2.10.0, Spring Boot 版本为1.5.9。发布
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>${log4j2.version}</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>${log4j2.version}</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>${log4j2.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.handlers</resource>
</transformer>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.schemas</resource>
</transformer>
</transformers>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<sourceDirectory>src/main/java</sourceDirectory>
</build>
log4j2.xml配置
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="debug" monitorInterval="30" shutdownHook="disable">
<properties>
<property name="LOG_HOME">/data1/logs</property>
<property name="JOB_NAME">noname</property>
</properties>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%date{yyyy-MM-dd HH:mm:ss} [%t] %level [%logger{36}][%file:%line] %msg%n%throwable"/>
</Console>
<RollingRandomAccessFile name="DetailFile"
fileName="${sys:LOG_HOME}/${sys:JOB_NAME}/detail.log" bufferedIO="false"
filePattern="${sys:LOG_HOME}/${sys:JOB_NAME}/detail.%d{yyyy-MM-dd}-%i.log">
<PatternLayout
pattern="%date{yyyy-MM-dd HH:mm:ss} [%t] %level [%file:%line] %msg%n%throwable"/>
<Policies>
<TimeBasedTriggeringPolicy interval="1" modulate="true"/>
<SizeBasedTriggeringPolicy size="500 MB"/>
</Policies>
</RollingRandomAccessFile>
<RollingRandomAccessFile name="error"
fileName="${sys:LOG_HOME}/${sys:JOB_NAME}/error.log" bufferedIO="true"
filePattern="${sys:LOG_HOME}/${sys:JOB_NAME}/error.%d{yyyy-MM-dd}.log">
<PatternLayout
pattern="%date{yyyy-MM-dd HH:mm:ss} [%t] %level [%logger{36}:%line] %msg%n%throwable"/>
<Policies>
<TimeBasedTriggeringPolicy interval="1" modulate="true"/>
</Policies>
</RollingRandomAccessFile>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="DetailFile"/>
<AppenderRef level="error" ref="error"/>
</Root>
</Loggers>
</Configuration>
7条答案
按热度按时间ma8fv8wu1#
如果一个依赖项包含log4j2插件,那么jar中会包含一个
Log4j2Plugins.dat
缓存文件。当使用Maven shade插件将多个jar与一个Log4j2Plugins.dat
文件合并时,只有一个jar会保留下来。如果没有插件定义,启动时会显示错误。Log4j2 issue一个解决方案是从shaded jar中排除
Log4j2Plugins.dat
缓存文件,这样Log4j在启动时会扫描插件。为此,在pom的maven-shade-plugin
配置中添加一个过滤器:另一个解决方案是使用transformation plugin合并该高速缓存文件,transformation plugin是log4j版本特定的。
qacovj5a2#
如果您使用的是Gradle和ShadowJar 4+:
GradleKotlin数字用户线:
ncecgwcz3#
不幸的是,我无法回复Shashank Kapoor的回答,因为他正确地指出,排除
Log4j2Plugins.dat
文件可以解决问题。xesrikrc4#
当人们在类路径上有多个版本的Log4j2时,我以前见过这个错误。
6ju8rftf5#
对于我们这些从类路径中删除旧的Logj 42以修复Log 4Shell(CVE-2021-44228)漏洞的人来说,您可能会发现在升级后使用Uber jar时会遇到此问题。
如果您正在从Maven或Gradle构建您的Uber jar,请分别使用其中一个插件:
如果你是通过其他方式构建的,请看下面的答案:https://stackoverflow.com/a/70497498/1174024。但基本上您必须像此类一样正确处理Log4j 2插件缓存文件:
https://github.com/edwgiz/maven-shaded-log4j-transformer/blob/master/src/main/java/io/github/edwgiz/log4j/maven/plugins/shade/transformer/Log4j2PluginCacheFileTransformer.java
以在构建新的uber jar时正确处理
Log4j2Plugins.dat
文件。vohkndzv6#
这个link适合我。对log4j着色时出现问题
monwx1rj7#
已将此代码段添加到测试类。不再有错误日志。