我的设置非常简单：我有一个Web前端，后端是弹簧接线的。

我正在使用AOP在rpc服务上增加一层安全性。

一切都很好，除了Web应用程序在启动时中止的事实：

[java] SEVERE: Context initialization failed
    [java] org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/aop]
    [java] Offending resource: ServletContext resource [/WEB-INF/gwthandler-servlet.xml]

这是我的xml配置文件中的代码段：

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    <aop:config>
        <aop:aspect id="security" ref="securityAspect" >
            <aop:pointcut id="securedServices" expression="@annotation(com.fb.boog.common.aspects.Secured)"/>
            <aop:before method="checkSecurity" pointcut-ref="securedServices"/>
        </aop:aspect>
    </aop:config>

我在互联网上读到，这可能是我上课负担问题的核心。令人怀疑的是，因为这是我的WEB-INF / lib目录：

./WEB-INF/lib
./WEB-INF/lib/aopalliance-alpha1.jar
./WEB-INF/lib/aspectj-1.6.6.jar
./WEB-INF/lib/commons-collections.jar
./WEB-INF/lib/commons-logging.jar
./WEB-INF/lib/ehcache-core-1.7.0.jar
./WEB-INF/lib/ejb3-persistence.jar
./WEB-INF/lib/hibernate
./WEB-INF/lib/hibernate/antlr.jar
./WEB-INF/lib/hibernate/asm.jar
./WEB-INF/lib/hibernate/bsh-2.0b1.jar
./WEB-INF/lib/hibernate/cglib.jar
./WEB-INF/lib/hibernate/dom4j.jar
./WEB-INF/lib/hibernate/freemarker.jar
./WEB-INF/lib/hibernate/hibernate-annotations.jar
./WEB-INF/lib/hibernate/hibernate-shards.jar
./WEB-INF/lib/hibernate/hibernate-tools.jar
./WEB-INF/lib/hibernate/hibernate.jar
./WEB-INF/lib/hibernate/jtidy-r8-20060801.jar
./WEB-INF/lib/jabsorb
./WEB-INF/lib/jabsorb/jabsorb-1.3.1.jar
./WEB-INF/lib/jta.jar
./WEB-INF/lib/jyaml-1.3.jar
./WEB-INF/lib/postgresql-8.4-701.jdbc4.jar
./WEB-INF/lib/sjsxp.jar
./WEB-INF/lib/spring
./WEB-INF/lib/spring/org.springframework.aop-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.asm-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.aspects-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.beans-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.context-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.context.support-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.core-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.expression-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.instrument-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.instrument.tomcat-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.jdbc-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.jms-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.orm-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.oxm-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.test-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.transaction-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.web-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.web.portlet-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.web.servlet-3.0.0.RELEASE.jar
./WEB-INF/lib/spring/org.springframework.web.struts-3.0.0.RELEASE.jar
./WEB-INF/lib/testng-5.11-jdk15.jar
./WEB-INF/web.xml