我在我的 Maven 项目中使用 SLF4J 和 log4j。当我在eclipse中的tomcat中运行项目以及使用tomcat maven插件在maven中运行项目时,一切正常。
但是当我将战争放入我的 tomcat 生产服务器时,该项目无法启动,给了我这个错误。
java.lang.IllegalStateException:检测到 log4j-over-slf4j.jar
AND 将 slf4j-log4j12.jar 绑定到类路径上,抢占
堆栈溢出错误。也可以看看http://www.slf4j.org/codes.html#log4jDelegationLoop http://www.slf4j.org/codes.html#log4jDelegationLoop更多细节。
我已经在 stackoverflow 中看到了许多关于此错误的答案,并且我已经明白我需要排除冲突 jar。问题是我的项目中没有 log4j-over-slf4j....war 的 lib 文件夹不包含此 jar,并且问题仅发生在我的生产服务器的 tomcat 服务器中。我不知道该怎么办。我将我的依赖树放在这里。
[INFO] +- junit:junit:jar:4.12:test
[INFO] | \- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO] +- com.sun.faces:jsf-api:jar:2.2.13:compile
[INFO] +- com.sun.faces:jsf-impl:jar:2.2.13:compile
[INFO] +- javax.servlet:jstl:jar:1.2:compile
[INFO] +- org.hibernate:hibernate-entitymanager:jar:5.1.0.Final:compile
[INFO] | +- org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile
[INFO] | +- org.hibernate:hibernate-core:jar:5.1.0.Final:compile
[INFO] | | +- (org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile - omitted for duplicate)
[INFO] | | +- (org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile - omitted for duplicate)
[INFO] | | +- (org.javassist:javassist:jar:3.20.0-GA:compile - omitted for duplicate)
[INFO] | | +- antlr:antlr:jar:2.7.7:compile
[INFO] | | +- (org.apache.geronimo.specs:geronimo-jta_1.1_spec:jar:1.1.1:compile - omitted for duplicate)
[INFO] | | +- org.jboss:jandex:jar:2.0.0.Final:compile
[INFO] | | +- (com.fasterxml:classmate:jar:1.3.0:compile - omitted for conflict with 1.1.0)
[INFO] | | +- (dom4j:dom4j:jar:1.6.1:compile - omitted for duplicate)
[INFO] | | \- (org.hibernate.common:hibernate-commons-annotations:jar:5.0.1.Final:compile - omitted for duplicate)
[INFO] | +- dom4j:dom4j:jar:1.6.1:compile
[INFO] | | \- (xml-apis:xml-apis:jar:1.0.b2:compile - omitted for conflict with 1.4.01)
[INFO] | +- org.hibernate.common:hibernate-commons-annotations:jar:5.0.1.Final:compile
[INFO] | | \- (org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile - omitted for duplicate)
[INFO] | +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile
[INFO] | +- org.javassist:javassist:jar:3.20.0-GA:compile
[INFO] | \- org.apache.geronimo.specs:geronimo-jta_1.1_spec:jar:1.1.1:compile
[INFO] +- org.hibernate:hibernate-validator:jar:5.2.4.Final:compile
[INFO] | +- javax.validation:validation-api:jar:1.1.0.Final:compile
[INFO] | +- (org.jboss.logging:jboss-logging:jar:3.2.1.Final:compile - omitted for conflict with 3.3.0.Final)
[INFO] | \- com.fasterxml:classmate:jar:1.1.0:compile
[INFO] +- org.slf4j:slf4j-log4j12:jar:1.7.21:compile
[INFO] | +- org.slf4j:slf4j-api:jar:1.7.21:compile
[INFO] | \- log4j:log4j:jar:1.2.17:compile
[INFO] +- log4j:apache-log4j-extras:jar:1.2.17:compile
[INFO] | \- (log4j:log4j:jar:1.2.17:compile - omitted for duplicate)
[INFO] +- javax.servlet:javax.servlet-api:jar:3.0.1:provided
[INFO] +- org.postgresql:postgresql:jar:9.4.1208.jre7:compile
[INFO] +- org.primefaces:primefaces:jar:6.0:compile
[INFO] +- org.primefaces.themes:start:jar:1.0.10:compile
[INFO] +- commons-io:commons-io:jar:2.5:compile
[INFO] +- org.jxls:jxls-reader:jar:2.0.2:compile
[INFO] | +- org.apache.commons:commons-digester3:jar:with-deps:3.2:compile
[INFO] | | +- cglib:cglib:jar:2.2.2:compile
[INFO] | | | \- asm:asm:jar:3.3.1:compile
[INFO] | | +- commons-beanutils:commons-beanutils:jar:1.8.3:compile
[INFO] | | | \- (commons-logging:commons-logging:jar:1.1.1:compile - omitted for duplicate)
[INFO] | | \- (commons-logging:commons-logging:jar:1.1.1:compile - omitted for conflict with 1.2)
[INFO] | +- org.apache.commons:commons-jexl:jar:2.1.1:compile
[INFO] | | \- (commons-logging:commons-logging:jar:1.1.1:compile - omitted for duplicate)
[INFO] | +- org.apache.poi:poi:jar:3.12:compile
[INFO] | | \- (commons-codec:commons-codec:jar:1.9:compile - omitted for conflict with 1.10)
[INFO] | +- org.apache.poi:poi-ooxml:jar:3.12:compile
[INFO] | | +- (org.apache.poi:poi:jar:3.12:compile - omitted for duplicate)
[INFO] | | \- org.apache.poi:poi-ooxml-schemas:jar:3.12:compile
[INFO] | | \- org.apache.xmlbeans:xmlbeans:jar:2.6.0:compile
[INFO] | | \- stax:stax-api:jar:1.0.1:compile
[INFO] | +- (org.slf4j:slf4j-api:jar:1.7.12:compile - omitted for conflict with 1.7.21)
[INFO] | \- org.slf4j:jcl-over-slf4j:jar:1.7.12:compile
[INFO] | \- (org.slf4j:slf4j-api:jar:1.7.12:compile - omitted for conflict with 1.7.21)
[INFO] +- org.jsoup:jsoup:jar:1.9.2:compile
[INFO] +- net.sourceforge.htmlunit:htmlunit:jar:2.22:compile
[INFO] | +- xalan:xalan:jar:2.7.2:compile
[INFO] | | \- xalan:serializer:jar:2.7.2:compile
[INFO] | +- org.apache.commons:commons-lang3:jar:3.4:compile
[INFO] | +- org.apache.httpcomponents:httpclient:jar:4.5.2:compile
[INFO] | | +- org.apache.httpcomponents:httpcore:jar:4.4.4:compile
[INFO] | | +- (commons-logging:commons-logging:jar:1.2:compile - omitted for conflict with 1.1.1)
[INFO] | | \- (commons-codec:commons-codec:jar:1.9:compile - omitted for duplicate)
[INFO] | +- org.apache.httpcomponents:httpmime:jar:4.5.2:compile
[INFO] | | \- (org.apache.httpcomponents:httpclient:jar:4.5.2:compile - omitted for duplicate)
[INFO] | +- commons-codec:commons-codec:jar:1.10:compile
[INFO] | +- net.sourceforge.htmlunit:htmlunit-core-js:jar:2.22:compile
[INFO] | +- net.sourceforge.htmlunit:neko-htmlunit:jar:2.21:compile
[INFO] | | \- xerces:xercesImpl:jar:2.11.0:compile
[INFO] | | \- (xml-apis:xml-apis:jar:1.4.01:compile - omitted for conflict with 1.0.b2)
[INFO] | +- net.sourceforge.cssparser:cssparser:jar:0.9.19:compile
[INFO] | | \- org.w3c.css:sac:jar:1.3:compile
[INFO] | +- (commons-io:commons-io:jar:2.5:compile - omitted for duplicate)
[INFO] | +- commons-logging:commons-logging:jar:1.2:compile
[INFO] | \- org.eclipse.jetty.websocket:websocket-client:jar:9.2.17.v20160517:compile
[INFO] | +- org.eclipse.jetty:jetty-util:jar:9.2.17.v20160517:compile
[INFO] | +- org.eclipse.jetty:jetty-io:jar:9.2.17.v20160517:compile
[INFO] | | \- (org.eclipse.jetty:jetty-util:jar:9.2.17.v20160517:compile - omitted for duplicate)
[INFO] | \- org.eclipse.jetty.websocket:websocket-common:jar:9.2.17.v20160517:compile
[INFO] | +- org.eclipse.jetty.websocket:websocket-api:jar:9.2.17.v20160517:compile
[INFO] | +- (org.eclipse.jetty:jetty-util:jar:9.2.17.v20160517:compile - omitted for duplicate)
[INFO] | \- (org.eclipse.jetty:jetty-io:jar:9.2.17.v20160517:compile - omitted for duplicate)
[INFO] \- xml-apis:xml-apis:jar:1.4.01:compile
EDIT :
经过很多很多其他测试,这个问题只发生在我的生产服务器tomcat上,我部署在其他8台服务器上,系统运行正常。我想这与我的生产服务器 tomcat 中运行的其他项目有冲突。这可能吗?
tomcat/lib 文件夹中应该有一个 log4j-over-slf4j.jar。你检查过吗?
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