Spring 3.2.6使用JDK Dynamic Proxy和DWR 2.0.2抛出异常 [英] Spring 3.2.6 with JDK Dynamic Proxy and DWR 2.0.2 throwing exception
问题描述
我刚刚将我的Web应用程序从spring 3.0升级到spring 3.2.6。
我在这里使用Maven，DWR 2.0.2和Spring AOP网络应用程序。
我所有的配置都是基于XML的，我没有使用注释。
这是代码： -
sample-servlet.xml文件中的Bean配置
I have just upgraded my web application from spring version 3.0 to spring 3.2.6.
I am using Maven, DWR 2.0.2 and Spring AOP in this web application.
All my configuration is XML based, I am not using annotations.
Here is the code:-
Bean configuration in sample-servlet.xml file
<bean id="sampleAjaxLogic" class="com.sid.web.ajax.SampleAjaxLogicImpl">
<property name="bimSampleLogic">
<ref bean="bimBusinessLogic"/>
</property>
<aop:scoped-proxy proxy-target-class="false" />
<!-- <aop:scoped-proxy/> -->
<dwr:remote javascript="SampleDWRCaller">
<dwr:include method="loadSampleData"/>
</bean>
使用的界面： -
Interface used:-
public interface SampleAjaxLogic
{
public List loadSampleData(int type);
}
实现上述界面的类： -
Class that implements the above interface:-
public class SampleAjaxLogicImpl implements SampleAjaxLogic {
private SampleBusinessLogic bimSampleLogic;
public SampleBusinessLogic getBimSampleLogic() {
return bimSampleLogic;
}
public void setBimSampleLogic(SampleBusinessLogic bimSampleLogic) {
this.bimSampleLogic = bimSampleLogic;
}
public List loadSampleData(int type) {
List sampleList = bimSampleLogic.loadSampleData(type);
return sampleList;
}
}
当我将配置文件升级到spring版本时3.2.6并尝试通过DWR调用调用loadSampledata（）方法，我遇到以下异常： -
When I upgraded my configuration files to spring version 3.2.6 and tried calling the loadSampledata() method through a DWR call, I faced the following exception:-
2014-01-21 15:20:29,534 [TP-Processor3] WARN org.directwebremoting.impl.DefaultRemoter::warn - Method execution failed:
**java.lang.IllegalArgumentException: object is not an instance of declaring class**
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.directwebremoting.impl.ExecuteAjaxFilter.doFil ter(ExecuteAjaxFilter.java:34)
at org.directwebremoting.impl.DefaultRemoter$1.doFilt er(DefaultRemoter.java:428)
at org.directwebremoting.impl.DefaultRemoter.execute( DefaultRemoter.java:431)
at org.directwebremoting.impl.DefaultRemoter.execute( DefaultRemoter.java:283)
at org.directwebremoting.servlet.PlainCallHandler.han dle(PlainCallHandler.java:52)
at org.directwebremoting.servlet.UrlProcessor.handle( UrlProcessor.java:101)
at org.directwebremoting.spring.DwrController.handleR equestInternal(DwrController.java:234)
at org.springframework.web.servlet.mvc.AbstractContro ller.handleRequest(AbstractController.java:153)
at org.springframework.web.servlet.mvc.SimpleControll erHandlerAdapter.handle(SimpleControllerHandlerAda pter.java:48)
at org.springframework.web.servlet.DispatcherServlet. doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet. doService(DispatcherServlet.java:856)
当我更改AOP配置时，此异常得到解决aop：scoped-proxy proxy-target-class =falseto aop：scoped-proxy proxy-target-class =true
据我所知它已经解决，因为现在应用程序使用的是CGLIB代理而不是JDK动态代理。
现在的问题是我不想使用CGLIB。在Spring 3.2.6中使用JDK动态代理有什么限制吗？这个问题有什么解决方案吗？
注意 - 我已经在使用接口了，所以这里似乎不是问题。
先谢谢。
This exception was getting resolved when I changed AOP configuration from aop:scoped-proxy proxy-target-class="false" to aop:scoped-proxy proxy-target-class="true"
Now as per my knowledge, it got resolved because now the application was using CGLIB proxy instead of JDK Dynamic proxy.
Now the problem is that I don't want to use CGLIB. Is there any constraint in using JDK dynamic proxy with Spring 3.2.6?? Is there any solution to this problem?
Note - I am already using Interfaces, so that doesn't seems to be the issue here.
Thanks in advance.
推荐答案
1.doFilt er（DefaultRemoter.java:428）
at org.directwebremoting .impl.DefaultRemoter.execute（DefaultRemoter.java:431）
at org.directwebremoting.impl.DefaultRemoter.execute（DefaultRemoter.java:283）
at org.directwebremoting.servlet.PlainCallHandler.han dle（ PlainCallHandler.java:52）
at org.directwebremoting.servlet.UrlProcessor.handle（UrlProcessor.java:101）
at org.directwebremoting.spring.DwrController.handleR equestInternal（DwrController.java:234）
at org.springframework.web.servlet.mvc.AbstractContro ller.handleRequest（AbstractController.java:153）
at org.springframework.web.servlet.mvc.SimpleControll erHandlerAdapter.handle（SimpleControllerHandlerAda pter.java: 48）org.springframework.web.servlet.DispatcherServle上的
吨。 doDispatch（DispatcherServlet.java:925）
at org.springframework.web.servlet.DispatcherServlet。 doService（DispatcherServlet.java:856）
1.doFilt er(DefaultRemoter.java:428) at org.directwebremoting.impl.DefaultRemoter.execute( DefaultRemoter.java:431) at org.directwebremoting.impl.DefaultRemoter.execute( DefaultRemoter.java:283) at org.directwebremoting.servlet.PlainCallHandler.han dle(PlainCallHandler.java:52) at org.directwebremoting.servlet.UrlProcessor.handle( UrlProcessor.java:101) at org.directwebremoting.spring.DwrController.handleR equestInternal(DwrController.java:234) at org.springframework.web.servlet.mvc.AbstractContro ller.handleRequest(AbstractController.java:153) at org.springframework.web.servlet.mvc.SimpleControll erHandlerAdapter.handle(SimpleControllerHandlerAda pter.java:48) at org.springframework.web.servlet.DispatcherServlet. doDispatch(DispatcherServlet.java:925) at org.springframework.web.servlet.DispatcherServlet. doService(DispatcherServlet.java:856)
当我更改AOP配置时，此异常得到解决aop：scoped-proxy proxy-target-class =falseto aop：scoped-proxy proxy-target-class =true
据我所知它已经解决，因为现在应用程序使用的是CGLIB代理而不是JDK动态代理。
现在的问题是我不想使用CGLIB。在Spring 3.2.6中使用JDK动态代理有什么限制吗？这个问题有什么解决方案吗？
注意 - 我已经在使用接口了，所以这里似乎不是问题。
提前致谢。
This exception was getting resolved when I changed AOP configuration from aop:scoped-proxy proxy-target-class="false" to aop:scoped-proxy proxy-target-class="true"
Now as per my knowledge, it got resolved because now the application was using CGLIB proxy instead of JDK Dynamic proxy.
Now the problem is that I don't want to use CGLIB. Is there any constraint in using JDK dynamic proxy with Spring 3.2.6?? Is there any solution to this problem?
Note - I am already using Interfaces, so that doesn't seems to be the issue here.
Thanks in advance.
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