ClassCastException $ Proxy, aop kullanarak kullanılamaz

Question

Fasulye aracılığıyla nesne oluşturmak için yay kullanıyordum. Şimdi aynı nesneyi yaratmak için aop kullanmaya çalıştım ve $ Proxy'yi SaleRoom istisnasına dönüştüremiyorum.

önceki xml oldu:

<?xml version="1.0" encoding="UTF-8"?> 

<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/spring-aop-2.5.xsd" 
xmlns:context="http://www.springframework.org/schema/context/spring-context-2.5.xsd" 
xmlns:flow="http://www.springframework.org/schema/webflow-config/spring-webflow-config- 1.0.xsd" 
xmlns:jm s="http://www.springframework.org/schema/jms/spring-jms-2.5.xsd" 
xmlns:jee="http://www.springframework.org/schema/jee/spring-jee-2.5.xsd" 
xmlns:lang="http://www.springframework.org/schema/lang/spring-lang-2.5.xsd" 
xmlns:osgi="http://www.springframework.org/schema/osgi/spring-osgi.xsd" 
xmlns:tx="http://www.springframework.org/schema/tx/spring-tx-2.5.xsd" 
xmlns:util="http://www.springframework.org/schema/util/spring-util-2.5.xsd" 
xmlns:p="http://www.springframework.org/schema/p" 

xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd  http://www.springframework.org/schema/aop/spring-aop-2.5.xsd/spring-spring-aop-2.5.xsd-2.5.xsd 
http://www.springframework.org/schema/context/spring-context-2.5.xsd  http://www.springframework.org/schema/context/spring-context-2.5.xsd/spring-spring-context-2.5.xsd-2.5.xsd 
http://www.springframework.org/schema/webflow-config/spring-webflow-config-1.0.xsd  http://www.springframework.org/schema/webflow-config/spring-webflow-config-1.0.xsd/spring-spring-webflow-config-1.0.xsd-2.5.xsd 
http://www.springframework.org/schema/jms/spring-jms-2.5.xsd  http://www.springframework.org/schema/jms/spring-jms-2.5.xsd/spring-spring-jms-2.5.xsd-2.5.xsd 
http://www.springframework.org/schema/jee/spring-jee-2.5.xsd  http://www.springframework.org/schema/jee/spring-jee-2.5.xsd/spring-spring-jee-2.5.xsd-2.5.xsd 
http://www.springframework.org/schema/lang/spring-lang-2.5.xsd  http://www.springframework.org/schema/lang/spring-lang-2.5.xsd/spring-spring-lang-2.5.xsd-2.5.xsd 
http://www.springframework.org/schema/osgi/spring-osgi.xsd  http://www.springframework.org/schema/osgi/spring-osgi.xsd/spring-spring-osgi.xsd-2.5.xsd 
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd  http://www.springframework.org/schema/tx/spring-tx-2.5.xsd/spring-spring-tx-2.5.xsd-2.5.xsd 
http://www.springframework.org/schema/util/spring-util-2.5.xsd  http://www.springframework.org/schema/util/spring-util-2.5.xsd/spring-spring-util-2.5.xsd-2.5.xsd 
"> 
<bean id="sale01" class="application.common.entities.BidRoom"> 
<property name="itemId" value="0001"/> 
<property name="lifeTime" value="15"/> 
</bean> 
</beans> 

Ve satış oluşturmak için aşağıdaki kodu kullanılır:

ApplicationContext context = new FileSystemXmlApplicationContext(SalesManager.getSalesSourceFile()); 
    SaleRoom saleRoom; 
    List<String> salesNames = new LinkedList<String>(); 
    List<SaleRoom> allSales = new LinkedList<SaleRoom>(); 

    // Get all sales id's for beans 
    NodeList salesNodeList = salesDoc.getElementsByTagName("bean"); 

    for (int i = 0; i < salesNodeList.getLength(); i++) { 
     Node nNode = salesNodeList.item(i); 
     salesNames.add(((Element) nNode).getAttribute("id").toString()); 
    } 

    for (String saleName : salesNames) { 
     if(saleName.contains("sale")) { 
      saleRoom = (SaleRoom) context.getBean(saleName); 
      allSales.add(saleRoom); 
     } 
    } 

    return allSales; 

Bu yeni xml geçerli:

<?xml version="1.0" encoding="UTF-8"?> 
<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-2.0.xsd 
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd"> 

    <aop:aspectj-autoproxy> 
     <aop:include name="logSettersCalls"/> 
    </aop:aspectj-autoproxy> 
    <bean id="logSettersCalls" class="application.logging.aop.LogSettersCalls"/> 

    <bean id="sale01" class="application.common.entities.BidRoom"> 
     <constructor-arg index="0" type="int" value="0001"/> 
     <constructor-arg index="1" type="int" value="15"/> 
    </bean> 
</beans> 

boy günlüğü Sınıfı:

@Aspect 
public class LogSettersCalls { 
    @Pointcut("execution(void set*(*))") 
    public void setMethod() {} 

    @Before("setMethod()") 
    public void logSetterCall(JoinPoint theJoinPoint) { 
     String methodName = theJoinPoint.getSignature().getName(); 
     Object newValue = theJoinPoint.getArgs()[0]; 
     Object theObject = theJoinPoint.getTarget(); 
     System.out.println("The method " + methodName + " is called on object " 
       + theObject + " with the value " + newValue); 
    } 
} 

Fasulye oluşturmak için aynı kodu aop ile kullanıyorum. $ Proxy11 application.common.entities.SaleRoom

istisna atar hat için döküm edilemez: saleroom = (saleroom) context.getBean (ve "ana" java.lang.ClassCastException dizisindeki İstisna olsun saleName);

Herhangi bir yardım için teşekkür ederiz. Teşekkürler.

Answer 1

SaleRoom sınıfınız bazı arayüzleri uyguluyor mu? evet, o zaman size kodunda yüzü olmamak sınıfını kullanmalıdır:

ISaleRoom saleRoom = (ISaleRoom) context.getBean(saleName); 

Çünkü Fasulye bu arayüzde dayalı vekil yaratacak varsayılan sonra bazı arabirimi Bahar uygulaması halinde.

Burada hedef sınıf için vekil oluşturmak istiyorsanız

a good article about proxy creation in Spring. Ayrıca Spring AOP için mekanizmayı proxy değiştirebilir olduğunu. Bu here in reference documentation tarif edilmektedir.