dubbo中Hessian方法重载问题处理
dubbo中Hessian方法重载，报出如下错误信息：
十一月 28, 2018 11:59:20 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [dubbo] in context with path [/rd] threw exception [com.caucho.hessian.io.HessianProtocolException: expected map/object at java.lang.String (T_BGGL_GONGWEN)] with root cause
com.caucho.hessian.io.HessianProtocolException: expected map/object at java.lang.String (T_BGGL_GONGWEN)
at com.caucho.hessian.io.AbstractDeserializer.error(AbstractDeserializer.java:150)
at com.caucho.hessian.io.AbstractMapDeserializer.readObject(AbstractMapDeserializer.java:70)
at com.caucho.hessian.io.HessianInput.readObject(HessianInput.java:1078)
at com.caucho.hessian.server.HessianSkeleton.invoke(HessianSkeleton.java:300)
at com.caucho.hessian.server.HessianSkeleton.invoke(HessianSkeleton.java:202)
at com.caucho.hessian.server.HessianSkeleton.invoke(HessianSkeleton.java:143)
at com.alibaba.dubbo.rpc.protocol.hessian.HessianProtocol$HessianHandler.handle(HessianProtocol.java:78)
at com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet.service(DispatcherServlet.java:64)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
2018 十一月 28 23:59:20,679 ERROR - Exception occurred during processing request: null
java.lang.reflect.InvocationTargetException
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:606)
at com.common.crud.EntityAction.execute(EntityAction.java:103)
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:606)
at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:892)
at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1294)
at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68)
at com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:117)
at com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:108)
at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:1370)
at ognl.ASTMethod.getValueBody(ASTMethod.java:91)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
at ognl.SimpleNode.getValue(SimpleNode.java:258)
at ognl.Ognl.getValue(Ognl.java:467)
at ognl.Ognl.getValue(Ognl.java:431)
at com.opensymphony.xwork2.ognl.OgnlUtil$3.execute(OgnlUtil.java:352)
at com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecuteMethod(OgnlUtil.java:404)
at com.opensymphony.xwork2.ognl.OgnlUtil.callMethod(OgnlUtil.java:350)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:430)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:290)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
at org.apache.struts2.interceptor.DeprecationInterceptor.intercept(DeprecationInterceptor.java:41)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:168)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:76)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:125)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:253)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:575)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
at com.framework.client.SysFilterDispatcher.doFilter(SysFilterDispatcher.java:126)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.common.util.CodeTransferFilter.doFilter(CodeTransferFilter.java:59)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.caucho.hessian.client.HessianRuntimeException: com.caucho.hessian.io.HessianProtocolException: '?' is an unknown code
at com.caucho.hessian.client.HessianProxy.invoke(HessianProxy.java:227)
at com.sun.proxy.$Proxy49.getPubFiles(Unknown Source)
at com.alibaba.dubbo.common.bytecode.Wrapper32.invokeMethod(Wrapper32.java)
at com.alibaba.dubbo.rpc.proxy.javassist.JavassistProxyFactory$1.doInvoke(JavassistProxyFactory.java:46)
at com.alibaba.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:72)
at com.alibaba.dubbo.rpc.protocol.AbstractProxyProtocol$2.doInvoke(AbstractProxyProtocol.java:93)
at com.alibaba.dubbo.rpc.protocol.AbstractInvoker.invoke(AbstractInvoker.java:144)
at com.alibaba.dubbo.rpc.protocol.dubbo.filter.FutureFilter.invoke(FutureFilter.java:53)
at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:75)
at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
at com.alibaba.dubbo.rpc.filter.ConsumerContextFilter.invoke(ConsumerContextFilter.java:48)
at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
at com.alibaba.dubbo.rpc.listener.ListenerInvokerWrapper.invoke(ListenerInvokerWrapper.java:74)
at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:53)
at com.alibaba.dubbo.rpc.cluster.support.FailoverClusterInvoker.doInvoke(FailoverClusterInvoker.java:77)
at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:227)
at com.alibaba.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.invoke(MockClusterInvoker.java:72)
at com.alibaba.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:52)
at com.alibaba.dubbo.common.bytecode.proxy11.getPubFiles(proxy11.java)
at com.gw.action.BgglGongwenAction.show(BgglGongwenAction.java:95)
... 96 more
Caused by: com.caucho.hessian.io.HessianProtocolException: '?' is an unknown code
at com.caucho.hessian.client.HessianProxy.invoke(HessianProxy.java:225)
... 116 more
问题原因：
经百度发现，主要原因在于hessian中默认不支持方法重载，只能按照方法名称来识别。
解决办法：
可以通过如下两种方法解决：
1、修改方法名称，不适用重载方法，而是重新定义方法来实现。
2、开启overloadEnabled选项，但是因为项目使用的是dubbo发布的hessian，客户端不知道如何开启此选项，需要后续研究。
dubbo中Hessian方法重载问题处理的更多相关文章
- JavaScript中的方法重载
对js有些了解的人都知道,在js中根本就不存在像C#中的那种方法重载,而有的只是方法的覆盖,当你在js中敲入两个或多个同名的方法的时候,不管方法(函数)的参数个数怎么个不同,这个方法名只能属于最后定义 ...
- paip.编程语言方法重载实现的原理及python,php,js中实现方法重载
paip.编程语言方法重载实现的原理及python,php,js中实现方法重载 有些语言,在方法的重载上,形式上不支持函数重载,但可以通过模拟实现.. 主要原理:根据参数个数进行重载,或者使用默认值 ...
- java中的方法重载与重写以及方法修饰符
1. 方法重载Overloading , 是在一个类中,有多个方法,这些方法的名字相同,但是具有不同的参数列表,和返回值 重载的时候,方法名要一样,但是参数类型和参数个数不一样,返回值类型可以相同,也 ...
- TypeScript 中的方法重载
方法重载(overload)在传统的静态类型语言中是很常见的.JavaScript 作为动态语言, 是没有重载这一说的.一是它的参数没有类型的区分,二是对参数个数也没有检查.虽然语言层面无法自动进行重 ...
- Java中的方法重载
一.什么是方法重载? 方法重载就是两个或多个方法的方法名相同,但是方法的形参类型,数量,顺序不同. 上面提到的三点也就是一个方法的特征标,只要有一点不相同,则该方法就不相同,就可以实现重载. 在这里的 ...
- 如何区分Java中的方法重载和重写
首先说的是重载: 方法的重载 * 在同一个类中,方法名相同,参数列表不同.与返回值类型无关. * 参数列表不同: * A:参数个数不同 * B:参数类型不同 * C:参数的顺序不同(不算重载 报错) ...
- java中的方法——重载yu重写（转）
重载(Overloading) (1) 方法重载是让类以统一的方式处理不同类型数据的一种手段.多个同名函数同时存在,具有不同的参数个数/类型. 重载Overloading是一个类中多态性的一种表现. ...
- java中的方法重载（overload）
什么时候方法重载:当两个方法的功能是相似的,可以考虑使用方法重载.若两个方法根本没有关系,无必要使用方法重载. 什么时候代码会发生方法重载:三个条件:1,在同一个类中.2,方法名相同.3,参数列表相同 ...
- 062、Java中的方法重载
01.代码如下: package TIANPAN; /** * 此处为文档注释 * * @author 田攀 微信382477247 */ public class TestDemo { public ...
随机推荐
- Java 线程池ThreadPoolExecutor简单应用
什么是线程池: 线程池就是控制线程的一个池子.用来控制线程数量. 为什么要使用线程池: 1.避免系统反复创建和销毁线程影响执行的时间(创建+销毁>>执行时间时) 2.控制线程数量.线程过多 ...
- 不能实现RadioButton默认选择
当用RadioButton时,希望在程序运行的时候默认一个选项: CheckRadioButton(IDC_RADIO1,IDC_RADIO2,IDC_RADIO1); //CheckRadioBut ...
- NullpointerException真的一定要被预防？
毫无疑问,空指针NullpointerException是我们最常遇到异常,没有之一! 在刚进入编程职业时,我想,大部分进入的同学肯定会受到前辈们的叮咛:一定要防止空指针,这是个低级错误.你们不是?好 ...
- 报错：out of memory java heap space
PermGen space的全称是Permanent Generation space,是指内存的永久保存区域OutOfMemoryError: PermGen space从表面上看就是内存益出,解决 ...
- org.apache.flume.EventDeliveryException: NettyAvroRpcClient { host: hadoop1, port: 41414 }: Failed to send event
org.apache.flume.EventDeliveryException: NettyAvroRpcClient { host: hadoop1, port: 41414 }: Failed t ...
- EventStore文件存储设计
背景 ENode是一个CQRS+Event Sourcing架构的开发框架,Event Sourcing需要持久化事件,事件可以持久化在DB,但是DB由于面向的是CRUD场景,是针对数据会不断修改或删 ...
- aapt2 错误
android.enableAapt2=false Error:Execution failed for task ':app:preDebugAndroidTestBuild'. > Conf ...
- Android上的水果忍者刀锋效果（JAVA实现）
显示刀锋的View package com.wbhuang.myninjia; import java.util.ArrayList; import java.util.List; import an ...
- 树状数组（二叉索引树 BIT Fenwick树） *【一维基础模板】（查询区间和+修改更新）
刘汝佳:<训练指南>Page(194) #include <stdio.h> #include <string.h> #include <stdlib.h&g ...
- 启动tomcat时，经常遇到的问题 8080 端口被占用
启动tomcat失败时,弹出的窗口如上,说明8080被某个进程占用了 需要把占用8080端口的进程给kill掉 Win+R 输入运行cmd 打开命令提示符cmd.exe netstat -ano|fi ...