无法找到XML命名空间的[http://www.springframework.org/schema/aop]

Question

我正在使用Spring 架构进行日志记录，而事务 management.we使用WSO2-ESB容器来部署我们的服务。这里是我们尝试使用ClassPathXmlApplicationContext().读取的XML文件。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:aop="http://www.springframework.org/schema/aop" 
xmlns:context="http://www.springframework.org/schema/context" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:tx="http://www.springframework.org/schema/tx" 
xsi:schemaLocation="http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-3.2.xsd 
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!-- Complete AOP implementation -->
    <aop:aspectj-autoproxy />
    <!-- Aspect -->
    <bean id="logAspect" class="x.y.z.logging.aspect.LoggingAspect" />
    <aop:config>
        <aop:aspect id="aspectLoggging" ref="logAspect" >
        <!-- @Before -->
            <aop:pointcut id="pointCutBefore"
                expression="execution(* *(..))" />
            <aop:before method="logBefore" pointcut-ref="pointCutBefore" />
            <!-- @After -->
            <aop:pointcut id="pointCutAfter"
                expression="execution(* *(..))" />
            <aop:after method="logAfter" pointcut-ref="pointCutAfter" />
            <!-- @AfterReturning -->
            <aop:pointcut id="pointCutAfterReturning"
                expression="execution(* *(..))" />
            <aop:after-returning method="logAfterReturning" returning="result" 
                pointcut-ref="pointCutAfterReturning" />
            <!-- @AfterThrowing -->
            <aop:pointcut id="pointCutAfterThrowing"
                expression="execution(* *(..))" />
            <aop:after-throwing method="logAfterThrowing" throwing="error" 
                pointcut-ref="pointCutAfterThrowing"  />
        </aop:aspect>
    </aop:config>
</beans>

在启动WSO2-ESB服务器时发生了实际问题。这里我附上了Stacktrace：

Caused by: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/aop]
Offending resource: file [C:\WSO2\Temp\WSO2ES~1.0\.\repository\conf\bundle-config\logger-aspect.xml]

    at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68)
    at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85)
    at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:80)
    at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.error(BeanDefinitionParserDelegate.java:316)
    at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1416)
    at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1409)
    at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:184)
    at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:140)
    at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:111)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:243)
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:127)
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:93)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:131)
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:522)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:436)
    at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:140)
    at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:84)
    at com.mi.logging.core.SpringLoggerUtil.setApplicationContext(SpringLoggerUtil.java:37)
    at com.mi.logging.aspect.activator.LogAspectActivator.start(LogAspectActivator.java:16)
    at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702)
    ... 9 more

我正在使用spring.3.2.5版本，并且我已经保证所有依赖的jar都在类路径上。请帮助解决这个问题。如果您有任何建议或解决方案，请告诉我。提前通知。

Answer 1

由于无法从WSO2-ESB提供的spring-aop-3.0.xsd中找到spring.framework_3.1.0.wso2v1.jar，的路径/位置，因此出现了此问题。

可以通过两种方式解决这一问题：

1)您可以添加最新版本的spring并设置jar文件的优先级。

参考文献

2)您只需遵循以下步骤即可。您必须将一些文件添加到spring.framework_3.1.0.wso2v1.jar文件的META文件夹中。

步骤如下所示。

创建一个新文件spring.schemas并添加如下内容。

http\://www.springframework.org/schema/aop/spring-aop-2.0.xsd=org/springframework/aop/config/spring-aop-2.0.xsd
http\://www.springframework.org/schema/aop/spring-aop-2.5.xsd=org/springframework/aop/config/spring-aop-2.5.xsd
http\://www.springframework.org/schema/aop/spring-aop-3.0.xsd=org/springframework/aop/config/spring-aop-3.0.xsd
http\://www.springframework.org/schema/aop/spring-aop-3.1.xsd=org/springframework/aop/config/spring-aop-3.1.xsd
http\://www.springframework.org/schema/aop/spring-aop-3.2.xsd=org/springframework/aop/config/spring-aop-3.2.xsd
http\://www.springframework.org/schema/aop/spring-aop.xsd=org/springframework/aop/config/spring-aop-3.2.xsd

(2)创建一个新文件spring.handlers并添加如下内容。

http\://www.springframework.org/schema/aop=org.springframework.aop.config.AopNamespaceHandler

(3)创建一个新文件spring.tooling并添加如下内容。

# Tooling related information for the aop namespace
http\://www.springframework.org/schema/aop@name=aop Namespace
http\://www.springframework.org/schema/aop@prefix=aop
http\://www.springframework.org/schema/aop@icon=org/springframework/aop/config/spring-aop.gif