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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2022/06/15 12:05:52 UTC
[GitHub] [dubbo] freegaga opened a new issue, #10165: dubbo泛化调用异常
freegaga opened a new issue, #10165:
URL: https://github.com/apache/dubbo/issues/10165
### Environment
* Dubbo version: 2.7.12
* Operating System version: windos10
* Java version: 1.8
### Steps to reproduce this issue
ReferenceConfig<GenericService> reference = new ReferenceConfig();
reference.setInterface("com.**.**.**");
reference.setGroup(group);
reference.setVersion(version);
reference.setRetries(retryTime);
RpcContext.getContext().setAttachment("generic", "gson");
reference.setGeneric(true);
reference.setCheck(false);
reference.setTimeout(100000);
GenericService genericService = ReferenceConfigCache.getCache().get(reference);
Map<String, Object> result = (Map<String, Object>) genericService.$invoke(method, new String[]{param.getClass().getName()}, new Object[]{JSONObject.toJSONString(param)});
上面是泛化调用代码
1，系统启动第一次通过泛化调用dubbo服务会报如下错误，但是第二次调dubbo服务就正常了。
2，我尝试过在调用dubbo服务的地方发生异常时捕获异常在重试也不行
Pls. provide [GitHub address] to reproduce this issue.
### Expected Behavior
If there is an exception, please attach the exception trace:
```
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is com.alibaba.dubbo.rpc.service.GenericException: java.lang.ClassCastException: java.lang.String cannot be cast to com.cloud.hub.dto.Command
java.lang.ClassCastException: java.lang.String cannot be cast to com.cloud.hub.dto.Command
at org.apache.dubbo.common.bytecode.Wrapper3.invokeMethod(Wrapper3.java)
at org.apache.dubbo.rpc.proxy.javassist.JavassistProxyFactory$1.doInvoke(JavassistProxyFactory.java:47)
at org.apache.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:84)
at org.apache.dubbo.config.invoker.DelegateProviderMetaDataInvoker.invoke(DelegateProviderMetaDataInvoker.java:56)
at org.apache.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:56)
at org.apache.dubbo.rpc.protocol.dubbo.filter.TraceFilter.invoke(TraceFilter.java:77)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.TimeoutFilter.invoke(TimeoutFilter.java:46)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:91)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.ExceptionFilter.invoke(ExceptionFilter.java:52)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.GenericFilter.invoke(GenericFilter.java:184)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.ClassLoaderFilter.invoke(ClassLoaderFilter.java:38)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.EchoFilter.invoke(EchoFilter.java:41)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.ContextFilter.invoke(ContextFilter.java:129)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:146)
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:100)
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:175)
at org.apache.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:51)
at org.apache.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:57)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.dubbo.common.threadlocal.InternalRunnable.run(InternalRunnable.java:41)
at java.lang.Thread.run(Thread.java:750)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-5.3.8.jar:5.3.8]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.8.jar:5.3.8]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:517) ~[jakarta.servlet-api-4.0.4.jar:4.0.4]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:584) ~[jakarta.servlet-api-4.0.4.jar:4.0.4]
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at com.github.xiaoymin.knife4j.spring.filter.SecurityBasicAuthFilter.doFilter(SecurityBasicAuthFilter.java:90) ~[knife4j-spring-1.9.6.jar:na]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at com.github.xiaoymin.knife4j.spring.filter.ProductionSecurityFilter.doFilter(ProductionSecurityFilter.java:53) ~[knife4j-spring-1.9.6.jar:na]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96) ~[spring-boot-actuator-2.5.2.jar:2.5.2]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) ~[undertow-core-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) ~[undertow-core-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) ~[undertow-core-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52) ~[undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99) [undertow-servlet-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:387) [undertow-core-2.2.8.Final.jar:2.2.8.Final]
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:841) [undertow-core-2.2.8.Final.jar:2.2.8.Final]
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) [jboss-threads-3.1.0.Final.jar:3.1.0.Final]
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2019) [jboss-threads-3.1.0.Final.jar:3.1.0.Final]
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1558) [jboss-threads-3.1.0.Final.jar:3.1.0.Final]
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1423) [jboss-threads-3.1.0.Final.jar:3.1.0.Final]
at java.lang.Thread.run(Thread.java:750) [na:1.8.0_322]
Caused by: com.alibaba.dubbo.rpc.service.GenericException: java.lang.ClassCastException: java.lang.String cannot be cast to com.cloud.hub.dto.Command
java.lang.ClassCastException: java.lang.String cannot be cast to com.cloud.hub.dto.Command
at org.apache.dubbo.common.bytecode.Wrapper3.invokeMethod(Wrapper3.java)
at org.apache.dubbo.rpc.proxy.javassist.JavassistProxyFactory$1.doInvoke(JavassistProxyFactory.java:47)
at org.apache.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:84)
at org.apache.dubbo.config.invoker.DelegateProviderMetaDataInvoker.invoke(DelegateProviderMetaDataInvoker.java:56)
at org.apache.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:56)
at org.apache.dubbo.rpc.protocol.dubbo.filter.TraceFilter.invoke(TraceFilter.java:77)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.TimeoutFilter.invoke(TimeoutFilter.java:46)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:91)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.ExceptionFilter.invoke(ExceptionFilter.java:52)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.GenericFilter.invoke(GenericFilter.java:184)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.ClassLoaderFilter.invoke(ClassLoaderFilter.java:38)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.EchoFilter.invoke(EchoFilter.java:41)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.filter.ContextFilter.invoke(ContextFilter.java:129)
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61)
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:146)
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:100)
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:175)
at org.apache.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:51)
at org.apache.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:57)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.dubbo.common.threadlocal.InternalRunnable.run(InternalRunnable.java:41)
at java.lang.Thread.run(Thread.java:750)
at org.apache.dubbo.rpc.filter.GenericFilter.onResponse(GenericFilter.java:224) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.protocol.FilterNode.lambda$invoke$0(FilterNode.java:99) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.AsyncRpcResult.lambda$whenCompleteWithContext$0(AsyncRpcResult.java:197) ~[dubbo-2.7.12.jar:2.7.12]
at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:774) ~[na:1.8.0_322]
at java.util.concurrent.CompletableFuture.uniWhenCompleteStage(CompletableFuture.java:792) ~[na:1.8.0_322]
at java.util.concurrent.CompletableFuture.whenComplete(CompletableFuture.java:2153) ~[na:1.8.0_322]
at org.apache.dubbo.rpc.AsyncRpcResult.whenCompleteWithContext(AsyncRpcResult.java:195) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:81) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.filter.ClassLoaderFilter.invoke(ClassLoaderFilter.java:38) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.filter.EchoFilter.invoke(EchoFilter.java:41) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.filter.ContextFilter.invoke(ContextFilter.java:129) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.protocol.FilterNode.invoke(FilterNode.java:61) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:146) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:100) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:175) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:51) ~[dubbo-2.7.12.jar:2.7.12]
at org.apache.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:57) ~[dubbo-2.7.12.jar:2.7.12]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_322]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_322]
at org.apache.dubbo.common.threadlocal.InternalRunnable.run(InternalRunnable.java:41) ~[dubbo-2.7.12.jar:2.7.12]
... 1 common frames omitted
```
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[GitHub] [dubbo] AlbumenJ commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1156422853
`com.cloud.hub.dto.Command` 这个参数是入参还是出参
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[GitHub] [dubbo] chickenlj commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
chickenlj commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1235032187
因为你传的参数值是 Json 格式的
> Map<String, Object> result = (Map<String, Object>) genericService.$invoke(method, new String[]{param.getClass().getName()}, new Object[]{JSONObject.toJSONString(param)});
这个方法也尝试下 reference.setGeneric("gson"); 或者 reference.setGeneric("json");
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[GitHub] [dubbo] AlbumenJ commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1168646815
wrapper.invokeMethod 是调用 proxy（服务端实现对象）的指定方法
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[GitHub] [dubbo] freegaga commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
freegaga commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1157132750
>
这个是入参
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[GitHub] [dubbo] AlbumenJ commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1169445952
> ## 这里面是请求的业务实现的，你可以查一下你的服务端实现是不是有问题
> @AlbumenJ 我查了下服务端没有什么问题， 现在我是通过如下方法解决的。但是这种方法不是很好。
>
> AtomicBoolean flag = flagMap.get(group); if(null == flag || !flag.get()){//第一次调用 result = (Map<String, Object>) genericService.$invoke(method, new String[]{param.getClass().getName()}, new Object[]{PojoUtils.generalize(param)}); flag = new AtomicBoolean(true); flagMap.put(group,flag); }else{//非第一次调用 result = (Map<String, Object>) genericService.$invoke(method, new String[]{param.getClass().getName()}, new Object[]{JSONObject.toJSONString(param)}); }
你在服务端打断点，第一次请求到 `wrapper.invokeMethod` 的时候看下是不是抛异常了，如果是的话再去业务代码里面打断点
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[GitHub] [dubbo] twz007 commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
twz007 commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1157321826
reference.setGeneric("gson");
还有问题的话，可以在provider侧断点调试：org.apache.dubbo.rpc.filter.GenericFilter#invoke @freegaga
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[GitHub] [dubbo] freegaga commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
freegaga commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1157134765
com.cloud.hub.dto.Command 这个参数是入参还是出参
---------------------------------------------------------------------
这个是入参，伪代码如下
@Override
public Res<JSONObject> command(Command command) {
JSONObject param = new JSONObject();
@param.put("key","test");
return Res.data(param);
}
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[GitHub] [dubbo] freegaga commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
freegaga commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1160395802
感觉是这里的问题
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[GitHub] [dubbo] AlbumenJ commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1168646107
这里面是请求的业务实现的，你可以查一下你的服务端实现是不是有问题
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[GitHub] [dubbo] freegaga commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
freegaga commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1168687053
这里面是请求的业务实现的，你可以查一下你的服务端实现是不是有问题
------------------------------------------------------------------------------------
@AlbumenJ
我查了下服务端没有什么问题，
现在我是通过如下方法解决的。但是这种方法不是很好，
`
AtomicBoolean flag = flagMap.get(group);
if(null == flag || !flag.get()){//第一次调用
result = (Map<String, Object>) genericService.$invoke(method, new String[]{param.getClass().getName()}, new Object[]{PojoUtils.generalize(param)});
flag = new AtomicBoolean(true);
flagMap.put(group,flag);
}else{//非第一次调用
result = (Map<String, Object>) genericService.$invoke(method, new String[]{param.getClass().getName()}, new Object[]{JSONObject.toJSONString(param)});
}
`
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[GitHub] [dubbo] chickenlj closed issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
chickenlj closed issue #10165: dubbo泛化调用异常
URL: https://github.com/apache/dubbo/issues/10165
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[GitHub] [dubbo] freegaga commented on issue #10165: dubbo泛化调用异常
Posted by GitBox <gi...@apache.org>.
freegaga commented on issue #10165:
URL: https://github.com/apache/dubbo/issues/10165#issuecomment-1157134953
com.cloud.hub.dto.Command 这个参数是入参还是出参
---------------------------------------------------------------------
这个是入参，伪代码如下
@Override
public Res<JSONObject> command(Command command) {
JSONObject param = new JSONObject();
@param.put("key","test");
return Res.data(param);
}
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