Java 使用ProxyFactoryBean时发生异常

我正在尝试实现ProxyFactoryBean来创建AOP代理，但出现了一些错误。谁能告诉我哪里出了问题

代码和异常跟踪如下所示：

performer.java Juggler.java accession.java TestClass.java spring-config.xml

观众
调试拦截器

但有以下例外吗

例外情况：

Exception in thread "main" org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Cannot locate BeanDefinitionParser for element [scoped-proxy]
Offending resource: class path resource [spring-config.xml]
    at org.springframework.beans.factory.parsing.FailFastProblemReporter.fatal(FailFastProblemReporter.java:59)
    at org.springframework.beans.factory.parsing.ReaderContext.fatal(ReaderContext.java:68)
    at org.springframework.beans.factory.parsing.ReaderContext.fatal(ReaderContext.java:55)
    at org.springframework.beans.factory.xml.NamespaceHandlerSupport.findParserForElement(NamespaceHandlerSupport.java:84)
    at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
    at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1419)
    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.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at com.org.TestClass.main(TestClass.java:15)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

线程“main”org.springframework.beans.factory.parsing异常：配置问题：找不到元素[作用域代理]的BeanDefinitionParser
有问题的资源：类路径资源[spring config.xml]
位于org.springframework.beans.factory.parsing.FailFastProblemReporter.fatal（FailFastProblemReporter.java:59）
位于org.springframework.beans.factory.parsing.ReaderContext.fatal（ReaderContext.java:68）
位于org.springframework.beans.factory.parsing.ReaderContext.fatal（ReaderContext.java:55）
位于org.springframework.beans.factory.xml.NamespaceHandlerSupport.findParserForElement（NamespaceHandlerSupport.java:84）
位于org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse（NamespaceHandlerSupport.java:73）
位于org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement（BeanDefinitionParserDelegate.java:1419）
位于org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement（BeanDefinitionParserDelegate.java:1409）
位于org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions（DefaultBeanDefinitionDocumentReader.java:184）
位于org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions（DefaultBeanDefinitionDocumentReader.java:140）
位于org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions（DefaultBeanDefinitionDocumentReader.java:111）
位于org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions（XmlBeanDefinitionReader.java:493）
位于org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions（XmlBeanDefinitionReader.java:390）
位于org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions（XmlBeanDefinitionReader.java:334）
位于org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions（XmlBeanDefinitionReader.java:302）
位于org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions（AbstractBeanDefinitionReader.java:174）
位于org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions（AbstractBeanDefinitionReader.java:209）
位于org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions（AbstractBeanDefinitionReader.java:180）
位于org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions（AbstractBeanDefinitionReader.java:243）
位于org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions（AbstractXmlApplicationContext.java:127）
位于org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions（AbstractXmlApplicationContext.java:93）
位于org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory（AbstractRefreshableApplicationContext.java:131）
位于org.springframework.context.support.AbstractApplicationContext.AcquitainFreshBeanFactory（AbstractApplicationContext.java:522）
位于org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:436）
位于org.springframework.context.support.ClassPathXmlApplicationContext。（ClassPathXmlApplicationContext.java:139）
位于org.springframework.context.support.ClassPathXmlApplicationContext。（ClassPathXmlApplicationContext.java:83）
位于com.org.TestClass.main（TestClass.java:15）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
在sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:57）中
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）中
位于java.lang.reflect.Method.invoke（Method.java:601）
位于com.intellij.rt.execution.application.AppMain.main（AppMain.java:120）

在运行测试时，首先检查类路径上是否有spring aop jar。如果查看org.springframework.aop.config.AopNamespaceHandler中的init方法，该方法是aop命名空间的默认处理程序，它为“作用域代理”注册处理程序

嗯

詹姆斯

附录： 详细查看后，问题是您无法指定：

 <aop:scoped-proxy proxy-target-class="false" /> 

---

我认为项目的类路径中缺少了

springaop

jar。我在库中使用了springaopjar。它肯定与您使用的

schemaLocation

版本相同吗<代码>http://www.springframework.org/schema/aop/spring-aop-3.0.xsd对应于弹簧3.0.x。您可能希望考虑使用“未版本化”模式位置<代码>http://www.springframework.org/schema/aop/spring-aop.xsd，它将始终映射到您正在使用的Spring版本的正确架构。@IanRoberts:我更改了它，但同样的问题很抱歉，我没有理解您。我是春天的新手。我应该在代码中做什么更改？您不需要做任何代码更改，只需确保spring-aop.jar存在于您的类路径中。它位于类路径中。我正在使用IntelliJ，项目库显示我已经包含了所有JAR。然而，我得到了一个错误。

    @Aspect
    public class Audience{
        @Pointcut("execution(* com.org.Performer.perform(..))")
        public void performance(){}

        @Before("performance()")
        public void takeSeats(){
            System.out.println("The audience is taking their seats.");
        }
        @Before("performance()")
        public void turnOffCellPhones(){
            System.out.println("The audience is turning off their cellphones.");
        }
        @AfterReturning("performance()")
        public void applaud(){
            System.out.println("CLAP CLAP CLAP CLAP CLAP");
        }
        @AfterThrowing("performance()")
        public void demandRefund(){
            System.out.println("Boo! We want our money back!");
        }
        @After("performance()")
        public void goHome(){
            System.out.println("The audience is going home!");
        }
        @Around("performance()")
        public void watchTime(ProceedingJoinPoint joinPoint){
            try{
                long startTime=System.currentTimeMillis();
                joinPoint.proceed();
                long endTime=System.currentTimeMillis();
                System.out.println("Time taken: "+(endTime-startTime));
            }
            catch (Throwable t){t.printStackTrace();}
        }
    }

    public class TestClass {
        public static void main(String args[]) {
            ApplicationContext applicationContext=new ClassPathXmlApplicationContext("spring-config.xml");

            Performer performer=(Performer)applicationContext.getBean("proxyDuke");
            performer.perform();   
        }
    }

<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-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

    <bean id="Duke" class="com.org.Juggler" ><constructor-arg value="15" /></bean>
    <bean id="audience" class="com.org.Audience"/>

    <bean id="debugInterceptor" class="org.springframework.aop.interceptor.DebugInterceptor"/>

        <bean id="proxyDuke" class="org.springframework.aop.framework.ProxyFactoryBean">
            <property name="target" ref="Duke"/>
            <property name="interceptorNames">
                <list>
                    <value>audience</value>
                    <value>debugInterceptor</value>
                </list>
            </property>
        </bean>
         <aop:scoped-proxy proxy-target-class="false" />
    </beans>

Exception in thread "main" org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Cannot locate BeanDefinitionParser for element [scoped-proxy]
Offending resource: class path resource [spring-config.xml]
    at org.springframework.beans.factory.parsing.FailFastProblemReporter.fatal(FailFastProblemReporter.java:59)
    at org.springframework.beans.factory.parsing.ReaderContext.fatal(ReaderContext.java:68)
    at org.springframework.beans.factory.parsing.ReaderContext.fatal(ReaderContext.java:55)
    at org.springframework.beans.factory.xml.NamespaceHandlerSupport.findParserForElement(NamespaceHandlerSupport.java:84)
    at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
    at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1419)
    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.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at com.org.TestClass.main(TestClass.java:15)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

 <aop:scoped-proxy proxy-target-class="false" /> 

<bean id="Duke" class="com.org.Juggler">
    <constructor-arg value="15" />
    <aop:scoped-proxy proxy-target-class="false" />
</bean>

<aop:config proxy-target-class="false" />

<bean id="Duke" class="com.org.Juggler">
    <constructor-arg value="15" />
</bean>
<bean id="audience" class="com.org.Audience" />
<aop:aspectj-autoproxy proxy-target-class="false" />    

Performer performer = (Performer)applicationContext.getBean("Duke");
performer.perform();