我是一个Java Web服务，它返回存储在Alfresco CMS中的文档列表。
此Web服务通常正常运行，当我调用它时，响应正常。但有时情况并非如此，并且SOAP响应中出现以下错误：
2014-10-24 12:58:17,047 ERROR [com.company.ws.Exceptions.HrwsException] : WSDoAllSender: cannot get SOAP envlope from messageorg.xml.sax.SAXException: Fatal Error: URI=null Line=1: Attribute "actor" bound to namespace "http://schemas.xmlsoap.org/soap/envelope/" was already specified for element "ns7:QueryHeader".
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.generalException
faultSubcode:
faultString: WSDoAllSender: cannot get SOAP envlope from messageorg.xml.sax.SAXException: Fatal Error: URI=null Line=1: Attribute "actor" bound to namespace "http://schemas.xmlsoap.org/soap/envelope/" was already specified for element "ns7:QueryHeader".
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:WSDoAllSender: cannot get SOAP envlope from messageorg.xml.sax.SAXException: Fatal Error: URI=null Line=1: Attribute "actor" bound to namespace "http://schemas.xmlsoap.org/soap/envelope/" was already specified for element "ns7:QueryHeader".
at org.apache.ws.axis.security.WSDoAllSender.invoke(WSDoAllSender.java:161)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:127)
at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)
at org.alfresco.webservice.repository.RepositoryServiceSoapBindingStub.query(RepositoryServiceSoapBindingStub.java:753)
...
{http://xml.apache.org/axis/}hostname:
WSDoAllSender: cannot get SOAP envlope from messageorg.xml.sax.SAXException: Fatal Error: URI=null Line=1: Attribute "actor" bound to namespace "http://schemas.xmlsoap.org/soap/envelope/" was already specified for element "ns7:QueryHeader".
at org.apache.ws.axis.security.WSDoAllSender.invoke(WSDoAllSender.java:161)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:127)
at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)
at org.alfresco.webservice.repository.RepositoryServiceSoapBindingStub.query(RepositoryServiceSoapBindingStub.java:753)
这是我从客户端发送的SOAP请求：
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:sch="http://<hostname>/webServices/schema">
<soapenv:Header/>
<soapenv:Body>
<sch:listDocumentsRequest username="*****" password="*****">
<sch:tipo>F</sch:tipo>
<sch:cod>1</sch:cod>
<!--Optional:-->
<sch:abono>0</sch:abono>
<!--Optional:-->
<sch:codDivision>01</sch:codDivision>
</sch:listDocumentsRequestt>
有什么想法吗？发生了什么事？ 感谢
更新：
我附上了wsdl：
<wsdl:definitions targetNamespace="http://hostname/webServices/definitions">
<wsdl:types>
<xsd:schema elementFormDefault="qualified" targetNamespace="http://hostname/webServices/schema" version="2.2">
<xsd:element name="listDocumentsRequest">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="tipo" type="docType"/>
<xsd:element minOccurs="1" name="cod" type="codType"/>
<xsd:element minOccurs="0" name="abono" type="xsd:boolean"/>
<xsd:element minOccurs="0" name="codDivision" type="codDivisionType"/>
</xsd:sequence>
<xsd:attributeGroup ref="identificacion"/>
</xsd:complexType>
</xsd:element><!-- listarDocumentosResponse -->
<xsd:element name="listarDocumentosResponse">
<xsd:complexType>
<xsd:sequence>
<xsd:element maxOccurs="unbounded" minOccurs="0" ref="listarDocumentosResponseItem"/>
<xsd:element minOccurs="0" name="excepcion" type="wsException"/>
</xsd:sequence>
<xsd:attribute name="fechaConsulta" type="xsd:dateTime"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="listarDocumentosResponseItem">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="1" name="documentoID" type="UUID"/>
<xsd:element minOccurs="1" name="rutaHttp" type="xsd:anyURI"/>
<xsd:element minOccurs="1" name="abono" type="xsd:boolean"/>
<xsd:element maxOccurs="1" name="prov" type="xsd:string"/>
<xsd:element minOccurs="1" name="codDivision" type="codDivisionType"/>
<xsd:element minOccurs="0" name="num" type="numType"/>
<xsd:element minOccurs="1" name="fecha" type="xsd:date"/>
<xsd:element minOccurs="0" name="cos" type="cosType"/>
<xsd:element maxOccurs="1" minOccurs="1" name="codDivisa" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:elment>
</xsd:schema>
</wsdl:types>
<wsdl:message name="listDocumentsRequest">
<wsdl:part element="sch:listDocumentsRequest" name="listDocumentsRequest"/>
</wsdl:message>
<wsdl:message name="listarDocumentosResponse">
<wsdl:part element="sch:listarDocumentosResponse" name="listarDocumentosResponse"/>
</wsdl:message>
<wsdl:portType name="GestorDocumWs">
<wsdl:operation name="listarDocumentos">
<wsdl:input message="tns:listDocumentsRequest" name="listDocumentsRequest"/>
<wsdl:output message="tns:listarDocumentosResponse" name="listarDocumentosResponse"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="GestorDocumWsSoap11" type="tns:GestorDocumWs">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="listarDocumentos">
<soap:operation soapAction=""/>
<wsdl:input name="listDocumentsRequest">
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="listarDocumentosResponse">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="miServicio">
<wsdl:port binding="tns:GestorDocumWsSoap11" name="GestorDocumWsSoap11">
<soap:address location="http://hostname/webServices/miServicio/snap"/>
</wsdl:port>
</wsdl:service>