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Posted to notifications@dubbo.apache.org by "wildeslam (via GitHub)" <gi...@apache.org> on 2023/05/22 11:59:53 UTC
[GitHub] [dubbo] wildeslam opened a new issue, #12378: dubbo3（consumer）分别调用dubbo2和dubbo3（provider）关于加载扩展协议的问题
wildeslam opened a new issue, #12378:
URL: https://github.com/apache/dubbo/issues/12378
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- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
## Ask your question here
consumer版本：3.1.9
provider版本：2.6.5 3.1.9
自定义协议
`public class CustomProtocol extends DubboProtocol {
@Override
public int getDefaultPort() {
return 2222;
}
}`
org.apache.dubbo.rpc.Protocol文件：
custom2=com.xxx.dubbo2.customprotocol.CustomProtocol
custom3=com.xxx.dubbo3.customprotocol.CustomProtocol
现在的情况是dubbo3调用dubbo3成功，dubbo2调用dubbo2报错
Caused by: java.lang.ClassNotFoundException: com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol
at java.net.URLClassLoader.findClass(URLClassLoader.java:387)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 82 more
at org.apache.dubbo.common.extension.ExtensionLoader.findException(ExtensionLoader.java:760) ~[dubbo-3.1.9.jar:3.1.9]
at org.apache.dubbo.common.extension.ExtensionLoader.createExtension(ExtensionLoader.java:767) ~[dubbo-3.1.9.jar:3.1.9]
at org.apache.dubbo.common.extension.ExtensionLoader.getExtension(ExtensionLoader.java:561) ~[dubbo-3.1.9.jar:3.1.9]
at org.apache.dubbo.common.extension.ExtensionLoader.getExtension(ExtensionLoader.java:535) ~[dubbo-3.1.9.jar:3.1.9]
at org.apache.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java) ~[dubbo-3.1.9.jar:3.1.9]
at org.apache.dubbo.config.ReferenceConfig.createInvokerForRemote(ReferenceConfig.java:614) ~[dubbo-3.1.9.jar:3.1.9]
at org.apache.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:448) ~[dubbo-3.1.9.jar:3.1.9]
at org.apache.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:300) ~[dubbo-3.1.9.jar:3.1.9]
at org.apache.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:232) ~[dubbo-3.1.9.jar:3.1.9]
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[GitHub] [dubbo] wildeslam commented on issue #12378: dubbo3（consumer）分别调用dubbo2和dubbo3（provider）关于加载扩展协议的问题
Posted by "wildeslam (via GitHub)" <gi...@apache.org>.
wildeslam commented on issue #12378:
URL: https://github.com/apache/dubbo/issues/12378#issuecomment-1558403608
>
> 看下扩展文件是不是路径不对
应该不是这个问题，因为consumer这边我换成dubbo2的版本后就可以正确加载custom2协议目前定位的原因是custom2协议extend了com.alibaba的dubboProtocol
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Re: [I] dubbo3（consumer）分别调用dubbo2和dubbo3（provider）关于加载扩展协议的问题 [dubbo]
Posted by "AlbumenJ (via GitHub)" <gi...@apache.org>.
AlbumenJ commented on issue #12378:
URL: https://github.com/apache/dubbo/issues/12378#issuecomment-1987517494
No news is good news. Please feel free to create a new issue if you have any question.
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Re: [I] dubbo3（consumer）分别调用dubbo2和dubbo3（provider）关于加载扩展协议的问题 [dubbo]
Posted by "AlbumenJ (via GitHub)" <gi...@apache.org>.
AlbumenJ closed issue #12378: dubbo3（consumer）分别调用dubbo2和dubbo3（provider）关于加载扩展协议的问题
URL: https://github.com/apache/dubbo/issues/12378
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[GitHub] [dubbo] AlbumenJ commented on issue #12378: dubbo3（consumer）分别调用dubbo2和dubbo3（provider）关于加载扩展协议的问题
Posted by "AlbumenJ (via GitHub)" <gi...@apache.org>.
AlbumenJ commented on issue #12378:
URL: https://github.com/apache/dubbo/issues/12378#issuecomment-1559267673
> >
>
> > 看下扩展文件是不是路径不对
>
> 应该不是这个问题，因为consumer这边我换成dubbo2的版本后就可以正确加载custom2协议 目前定位的原因是custom2协议extend了com.alibaba的DubboProtocol，但是在dubbo3的jar包里com.alibaba这个路径下没有DubboProtocol 但是没有找到很好的解决方案
为什么需要扩展 DubboProtocol 协议呢，建议重新确定下为什么需要这个协议
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[GitHub] [dubbo] songxiaosheng commented on issue #12378: dubbo3（consumer）分别调用dubbo2和dubbo3（provider）关于加载扩展协议的问题
Posted by "songxiaosheng (via GitHub)" <gi...@apache.org>.
songxiaosheng commented on issue #12378:
URL: https://github.com/apache/dubbo/issues/12378#issuecomment-1557145942
看下扩展文件是不是路径不对
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