将commons-logging-1.2.jar替换为log4j logging Framework的pom.xml文件,以避免显示以下错误:
java.lang.IllegalStateException:ContainerBase.addChild:start:org.apache.catalina.LifecycleException:java.lang.NoClassDefFoundError:org / apache / commons / logging / LogFactory
引起:java.lang.ClassNotFoundException:org.apache.commons.logging.LogFactory
通过在/ WEB-INF / lib /文件夹中添加commons-logging-1.2.jar文件并尝试在pom.xml文件中添加commons-logging-1.2依赖关系来执行一些初步的解决步骤后,仍然没有取得任何好结果。
这些是Log4j.properties详细信息:
log4j.rootLogger=INFO, Appender1, Appender2
log4j.appender.Appender1=org.apache.log4j.ConsoleAppender
log4j.appender.Appender1.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender1.layout.ConversionPattern=%-7p %d [%t] %c %x - %m%n
log4j.appender.Appender2=org.apache.log4j.FileAppender
log4j.appender.Appender2.File=D:/Logs/SpringMVC.log
log4j.appender.Appender2.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender2.layout.ConversionPattern=%-7p %d [%t] %c %x - %m%n
这是包含的pom.xml文件依赖项:
<log4j.version>1.6.5</log4j.version>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-bom</artifactId>
<version>2.5</version>
<scope>import</scope>
<type>pom</type>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-jcl</artifactId>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
</dependency>
</dependencies>
答案 0 :(得分:0)
在网站上搜索答案后,此网站链接重点关注解决方案: https://stackoverflow.com/a/21688114/5984671
以下是对pom.xml文件所做的更改,之后执行时没有错误:
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- <dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
</dependency> -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j13</artifactId>
<version>${slf4j.log4j13.version}</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- <dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
</dependency> -->
(简短说明: 如果我同时使用slf4j-api和log4j-api依赖,会不会有任何冲突,任何对此的评论都很明显)