Question

我使用 Spring AOP 架构进行日志记录和事务管理。我们正在使用 WSO2-ESB 容器来部署我们的服务。这是我们尝试使用 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>

启动WSO2-ESB服务器时出现实际问题。在这里，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

我使用spring.3.2.5版本，我已经放心，所有依赖的jar都在classpath上。请帮助解决此问题。如果您有任何建议或解决方案，请告诉我。 Thnx提前。

Answer 1

发生此问题的原因是它无法从 spring.framework_3.1.0.wso2v1.jar 中找到 spring-aop-3.0.xsd 的路径/位置，这是由WSO2-ESB提供的它可以通过两种方式解决：
1）您可以添加最新版本的spring并设置该jar文件的优先级。
Reference

2）您只需按照下面描述的步骤操作即可。您必须将一些文件添加到 spring.framework_3.1.0.wso2v1.jar 文件的 META-INF 文件夹中。
步骤如下所示。
i）创建一个新文件 spring.schemas 并添加下面显示的内容。

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

ii）创建一个新文件 spring.handlers 并添加下面显示的内容。

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

iii）创建一个新文件 spring.tooling 并添加如下所示的内容。

# 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

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

1 个答案: