独立Spring应用程序( jar)与weblogic 10上的其他web应用程序冲突

Question

我有一个独立的spring应用程序，它主要包含aspecj方面和一些其他的spring托管bean，并与maven-assembly插件捆绑在一个jar中，所有的spring依赖项都捆绑在jar中并添加到weblogic类路径中。

目标是在运行时使用aspectJ代理将库中的方面编织到weblogic中所有正在运行的应用程序中。

问题是，当我在类路径中添加jar文件并重新启动服务器时，在部署现有web应用程序时会得到ClassNotFoundException。

我知道它不是一个不在lib文件夹中的jar文件，因为应用程序在类路径中没有我的jar文件也可以很好地部署。

注意:当我只是将spring jar文件放在domain/lib文件夹中时，也会得到classNotFoundException。

你能解释一下为什么运行中的应用程序会受到我基于spring的库的影响吗？

请看下面的堆栈跟踪:我非常确定javax.validation.ValidatorFactory在WEB-INF\lib文件夹中的验证api中。因为只有在将自定义jar文件添加到weblogic类路径中时，才会出现此异常。

Caused By: org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.springframework.validation.beanvalidation.LocalValidatorFactoryBean] for bean with name 'jsr303Validator' defined in ServletContext resource [/WEB-INF/config/webmvc-config.xml]: problem with class file or dependent class; nested exception is java.lang.NoClassDefFoundError: javax/validation/ValidatorFactory
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1272)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:578)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1338)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:356)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:335)
at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:187)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:895)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:853)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768)
at org.s

Caused By: java.lang.ClassNotFoundException: javax.validation.ValidatorFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java

下面是我的WAR文件的依赖关系树。

       [INFO] [dependency:tree {execution: default-cli}]
    [INFO] com.company.project:eCom4jWeb:war:1.0.0-SNAPSHOT
    [INFO] +- com.company.project:eCom4jCore:jar:1.0.0-SNAPSHOT:compile
    [INFO] |  +- org.springframework:spring-jdbc:jar:3.1.2.RELEASE:compile
    [INFO] |  +- org.hsqldb:com.springsource.org.hsqldb:jar:1.8.0.9:runtime
    [INFO] |  +- mysql:mysql-connector-java:jar:5.1.9:compile
    [INFO] |  +- org.hibernate:com.springsource.org.hibernate:jar:3.3.2.GA:compile
    [INFO] |  |  +- net.sourceforge.cglib:com.springsource.net.sf.cglib:jar:2.2.0:compile
[INFO] |  |  +- org.antlr:com.springsource.antlr:jar:2.7.6:compile
[INFO] |  |  +- org.apache.commons:com.springsource.org.apache.commons.collections:jar:3.2.1:compile
[INFO] |  |  +- org.dom4j:com.springsource.org.dom4j:jar:1.6.1:compile
[INFO] |  |  +- org.jboss.javassist:com.springsource.javassist:jar:3.9.0.GA:compile
[INFO] |  |  \- org.objectweb.asm:com.springsource.org.objectweb.asm:jar:1.5.3:compile
[INFO] |  +- org.hibernate:com.springsource.org.hibernate.annotations:jar:3.4.0.GA:compile
[INFO] |  |  \- org.hibernate:com.springsource.org.hibernate.annotations.common:jar:3.3.0.ga:compile
[INFO] |  +- org.hibernate:hibernate-validator:jar:4.2.0.Final:compile
[INFO] |  |  +- javax.validation:validation-api:jar:1.0.0.GA:compile
[INFO] |  |  \- org.slf4j:slf4j-api:jar:1.6.1:compile
[INFO] |  +- javax.transaction:com.springsource.javax.transaction:jar:1.1.0:compile
[INFO] |  +- commons-beanutils:commons-beanutils:jar:1.8.3:compile
[INFO] |  +- net.sf.dozer:dozer:jar:5.3.1:compile
[INFO] |  \- org.apache.xmlbeans:xmlbeans:jar:2.4.0:runtime
[INFO] |     \- stax:stax-api:jar:1.0.1:runtime
[INFO] +- com.company.project:eCom4jWS:jar:1.0.0-SNAPSHOT:compile
[INFO] |  +- com.company.project:eCom4jRemixDomain:jar:1.0.0-SNAPSHOT:compile
[INFO] |  |  \- org.jvnet.jaxb2_commons:jaxb2-basics-runtime:jar:0.6.2:compile
[INFO] |  \- org.springframework:spring-oxm:jar:3.1.2.RELEASE:compile
[INFO] +- javax.servlet:jstl:jar:1.2:compile
[INFO] +- org.springframework.security:spring-security-web:jar:3.1.2.RELEASE:compile
[INFO] |  \- aopalliance:aopalliance:jar:1.0:compile
[INFO] +- org.springframework.security:spring-security-taglibs:jar:3.1.2.RELEASE:compile
[INFO] |  \- org.springframework.security:spring-security-acl:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework:spring-webmvc:jar:3.1.2.RELEASE:compile
[INFO] |  +- org.springframework:spring-asm:jar:3.1.2.RELEASE:compile
[INFO] |  \- org.springframework:spring-context-support:jar:3.1.2.RELEASE:compile
[INFO] +- javax.servlet:servlet-api:jar:2.5:provided
[INFO] +- org.springframework:spring-beans:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework.webflow:spring-binding:jar:2.2.1.RELEASE:compile
[INFO] +- org.springframework.webflow:spring-js:jar:2.2.1.RELEASE:compile
[INFO] |  \- org.springframework.webflow:spring-js-resources:jar:2.2.1.RELEASE:compile
[INFO] +- org.springframework.webflow:spring-webflow:jar:2.2.1.RELEASE:compile
[INFO] +- org.springframework.security:spring-security-config:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework.security:spring-security-core:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework:spring-tx:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework:spring-web:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework:spring-aop:jar:3.1.2.RELEASE:compile
[INFO] +- commons-logging:commons-logging:jar:1.1.1:compile
[INFO] +- org.springframework:spring-core:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework:spring-orm:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework:spring-context:jar:3.1.2.RELEASE:compile
[INFO] +- javax.el:el-api:jar:1.0:provided
[INFO] +- org.jboss.el:com.springsource.org.jboss.el:jar:2.0.0.GA:compile
[INFO] +- org.apache.tiles:tiles-core:jar:2.1.4:compile
[INFO] |  +- commons-digester:commons-digester:jar:1.8.1:compile
[INFO] |  \- commons-logging:commons-logging-api:jar:1.1:compile
[INFO] +- org.apache.tiles:tiles-jsp:jar:2.1.4:compile
[INFO] +- org.apache.tiles:tiles-api:jar:2.1.4:compile
[INFO] +- org.apache.tiles:tiles-servlet:jar:2.1.4:compile
[INFO] +- org.springframework:spring-test:jar:3.1.2.RELEASE:test
[INFO] +- org.springframework:spring-expression:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework:spring-test-mvc:jar:1.0.0.BUILD-SNAPSHOT:test
[INFO] +- org.powermock:powermock-module-junit4:jar:1.4.12:test
[INFO] |  \- org.powermock:powermock-module-junit4-common:jar:1.4.12:test
[INFO] |     +- org.powermock:powermock-core:jar:1.4.12:test
[INFO] |     |  \- org.javassist:javassist:jar:3.16.1-GA:test
[INFO] |     \- org.powermock:powermock-reflect:jar:1.4.12:test
[INFO] +- org.powermock:powermock-api-easymock:jar:1.4.12:test
[INFO] |  \- org.powermock:powermock-api-support:jar:1.4.12:test
[INFO] +- org.codehaus.jackson:jackson-mapper-asl:jar:1.5.3:compile
[INFO] |  \- org.codehaus.jackson:jackson-core-asl:jar:1.5.3:compile
[INFO] +- com.jayway.jsonpath:json-path:jar:0.8.1:test
[INFO] |  \- net.minidev:json-smart:jar:1.1.1:test
[INFO] +- org.aspectj:com.springsource.org.aspectj.weaver:jar:1.6.8.RELEASE:compile
[INFO] +- org.slf4j:com.springsource.slf4j.api:jar:1.5.6:compile
[INFO] +- org.slf4j:com.springsource.slf4j.org.apache.commons.logging:jar:1.5.6:runtime
[INFO] +- org.slf4j:com.springsource.slf4j.log4j:jar:1.5.6:runtime
[INFO] +- org.apache.log4j:com.springsource.org.apache.log4j:jar:1.2.15:compile
[INFO] +- org.apache.commons:com.springsource.org.apache.commons.dbcp:jar:1.2.2.osgi:runtime
[INFO] +- org.apache.commons:com.springsource.org.apache.commons.pool:jar:1.5.3:runtime
[INFO] +- org.hamcrest:hamcrest-all:jar:1.3:compile
[INFO] +- junit:junit:jar:4.8.1:test (scope not updated to compile)
[INFO] +- org.easymock:easymock:jar:3.1:test
[INFO] |  +- cglib:cglib-nodep:jar:2.2.2:test
[INFO] |  \- org.objenesis:objenesis:jar:1.2:test
[INFO] +- commons-lang:commons-lang:jar:2.6:compile
[INFO] +- org.apache.struts:struts2-core:jar:2.2.1:compile
[INFO] |  +- org.apache.struts.xwork:xwork-core:jar:2.2.1:compile
[INFO] |  +- org.freemarker:freemarker:jar:2.3.16:compile
[INFO] |  +- ognl:ognl:jar:3.0:compile
[INFO] |  +- commons-fileupload:commons-fileupload:jar:1.2.1:compile
[INFO] |  +- commons-io:commons-io:jar:1.3.2:compile
[INFO] |  \- com.sun:tools:jar:1.5.0:system
[INFO] +- org.apache.struts:struts2-tiles-plugin:jar:2.2.1:compile
[INFO] +- org.apache.struts:struts2-spring-plugin:jar:2.2.1:compile
[INFO] +- javax.mail:mail:jar:1.4:compile
[INFO] |  \- javax.activation:activation:jar:1.1:compile
[INFO] \- net.tanesha.recaptcha4j:recaptcha4j:jar:0.0.7:compile
[INFO] -------

谢谢

Answer 1

如果您正在使用maven构建jar，请尝试构建嵌入了依赖项的jar文件并对其进行测试，下面的链接可以帮助您完成此操作：

How can I create an executable JAR with dependencies using Maven?

Answer 2

依赖关系树显示：

• 两个版本的commons-logging：1.1和1.1.1
• 两个版本的slf4j：1.5.6和1.6.1
• javax.transaction已经确定了compiled的作用域，而不是来自不同来源的Hibernate工件的org.hibernate:com.springsource.org.hibernate:jar:3.3.2.GA:compile org.hibernate:com.springsource.org.hibernate.annotations:jar:3.4.0.GA:compile org.hibernate:com.springsource.org.hibernate.annotations:jar:3.4.0.GA:compile

当ClassLoader在没有任何确定或预定义顺序的情况下加载资源时，添加jar文件可能已经改变了这种顺序，并且现在可以看到类冲突--或者在EAR/WAR本身内部，或者在应用服务器和应用程序之间。

通过提供的信息来指出冲突来源并不明显，但它可能是org.hibernate:hibernate-validator，您应该将其版本与核心包对齐，因此也可以从com.springsource获取3.3.2.GA。

要获得清晰的诊断结果，可以使用-verbose:class选项运行stderr JVM并查看WebLogic输出。失败前最新加载的资源和之前加载的相关类的日志是消除打包造成的这种冲突的最佳线索。

如果冲突来自应用程序服务器包，且您无法对齐到同一版本，则WebLogic允许您按包设置类加载筛选，以强制加载您自己的版本。请参阅Using a Filtering Classloader from classloading documentation部分。

Answer 3

听起来像是地狱..。如果你有相同jar的不同版本，你的容器只加载第一个版本...现在，想象一下，如果它加载jar 1的版本5，以及依赖的jar 2的版本2(但正确的版本也是版本5)...可能会让你的系统崩溃...为了防止它，一些容器不加载任何版本，并给出一些像ClassNotFoundException这样的消息。