从dot net客户端调用Java webservice

问题描述：

当我尝试从C＃代码访问托管在Tomcat中的Web服务时，出现如下错误消息。从dot net客户端调用Java webservice

There was an error in serializing body of message searchRepositoriesRequest: ' 
Unable to generate a temporary class (result=1). 
error CS0266: Cannot implicitly convert type 'object' to 'object[]'. An explicit 
conversion exists (are you missing a cast?) 
error CS0266: Cannot implicitly convert type 'object' to 'object[]'. An explicit 
conversion exists (are you missing a cast?) 
error CS0266: Cannot implicitly convert type 'object' to 'object[]'. An explicit 
conversion exists (are you missing a cast?) 
'. Please see InnerException for more details.

有人能帮助我吗？请参考下面给出的堆栈跟踪。

Server stack trace: 
    at System.ServiceModel.Dispatcher.XmlSerializerOperationFormatter.SerializeBo 
dy(XmlDictionaryWriter writer, MessageVersion version, String action, MessageDes 
cription messageDescription, Object returnValue, Object[] parameters, Boolean is 
Request) 
    at System.ServiceModel.Dispatcher.OperationFormatter.SerializeBodyContents(Xm 
lDictionaryWriter writer, MessageVersion version, Object[] parameters, Object re 
turnValue, Boolean isRequest) 
    at System.ServiceModel.Dispatcher.OperationFormatter.OperationFormatterMessag 
e.OperationFormatterBodyWriter.OnWriteBodyContents(XmlDictionaryWriter writer) 
    at System.ServiceModel.Channels.BodyWriter.WriteBodyContents(XmlDictionaryWri 
ter writer) 
    at System.ServiceModel.Channels.BodyWriterMessage.OnWriteBodyContents(XmlDict 
ionaryWriter writer) 
    at System.ServiceModel.Channels.Message.OnWriteMessage(XmlDictionaryWriter wr 
iter) 
    at System.ServiceModel.Channels.Message.WriteMessage(XmlDictionaryWriter writ 
er) 
    at System.ServiceModel.Channels.BufferedMessageWriter.WriteMessage(Message me 
ssage, BufferManager bufferManager, Int32 initialOffset, Int32 maxSizeQuota) 
    at System.ServiceModel.Channels.TextMessageEncoderFactory.TextMessageEncoder. 
WriteMessage(Message message, Int32 maxMessageSize, BufferManager bufferManager, 
Int32 messageOffset) 
    at System.ServiceModel.Channels.HttpOutput.SerializeBufferedMessage(Message m 
essage) 
    at System.ServiceModel.Channels.HttpOutput.Send(TimeSpan timeout) 
    at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpCha 
nnelRequest.SendRequest(Message message, TimeSpan timeout) 
    at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeS 
pan timeout) 
    at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message messag 
e, TimeSpan timeout) 
    at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean on 
eway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan tim 
eout) 
    at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean on 
eway, ProxyOperationRuntime operation, Object[] ins, Object[] outs) 
    at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCall 
Message methodCall, ProxyOperationRuntime operation) 
    at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message) 

Exception rethrown at [0]: 
    at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage req 
Msg, IMessage retMsg) 
    at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgDa 
ta, Int32 type) 
    at WSTesting2.SBS.SBSQueryService.searchRepositories(searchRepositoriesReques 
t request) 
    at WSTesting2.SBS.SBSQueryServiceClient.WSTesting2.SBS.SBSQueryService.search 
Repositories(searchRepositoriesRequest request) in E:\Tetsngs\WSTesting2\Service 
References\SBS\Reference.cs:line 2253 
    at WSTesting2.SBS.SBSQueryServiceClient.searchRepositories(searchRequest arg0 
) in E:\Tetsngs\WSTesting2\Service References\SBS\Reference.cs:line 2259 
    at WSTesting2.Program.Main(String[] args) in E:\Tetsngs\WSTesting2\Program.cs 
:line 66Press any key to continue . . .

是一个Java堆栈跟踪或C＃堆栈跟踪？如果是后者，也许你应该添加C＃标签。 – 2009-09-11 08:41:27

请提供WSDL文件。这将帮助我们帮助你。 ;） – KB22 2009-09-11 08:49:46

@Thomas，添加了C＃标记，以便知道C＃和.Net的人可以查看堆栈跟踪来帮助解决问题。无论是控制台应用程序，WinForms应用程序还是ASP.Net页面或多或少都不相关。 – 2009-09-11 08:58:02

答

我们遇到了同样的问题。我相信你会在wsdl的某处找到一个列表，即maxOccurs = unbounded的一个元素，type是一个单一元素的序列，也是maxOccurs = unbounded。

请参阅'Error serializing body'. Problem calling Fedex webservice through .NET 3.5另一种情况。

可能的解决方案包括修改wsdl不使用列表列表（例如，向内部类型添加一个虚拟字段），或者按照另一个链接上的建议手动编辑您生成的代码。

从dot net客户端调用Java webservice

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