关于Java：如何从标记中删除名称空间，但保留其前缀？


How to remove namespace from a tag but leave its prefix?

我能够生成SOAP消息，但我不知道

  • 仅将前缀添加到soapMessage标记(不应具有名称空间)

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     SOAPConnectionFactory soapConnectionFactory =
                    SOAPConnectionFactory.newInstance();
     SOAPConnection connection =
                    soapConnectionFactory.createConnection();
     SOAPFactory soapFactory =
                    SOAPFactory.newInstance();

     MessageFactory factory =
                    MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL);

     SOAPMessage message = factory.createMessage();
     SOAPHeader header = message.getSOAPHeader();
     SOAPPart soapPart = message.getSOAPPart();
     SOAPEnvelope soapEnvelope = soapPart.getEnvelope();                
     SOAPBody body = soapEnvelope.getBody();

     soapEnvelope.removeNamespaceDeclaration(soapEnvelope.getPrefix());
     soapEnvelope.setPrefix("soap");
     body.setPrefix("soap");

     header.removeNamespaceDeclaration(header.getPrefix());
     header.setPrefix("soap");

     soapEnvelope.addNamespaceDeclaration("v9","URL TO SERVER");

     Name bodyName;
     bodyName = soapFactory.createName("SearchHotels");
     SOAPBodyElement getList = body.addBodyElement(bodyName);
     getList.setPrefix("v9");

     Name childName = soapFactory.createName("SoapMessage","v9","URL TO SERVER");
     SOAPElement HotelListRequest = getList.addChildElement(childName);

     HotelListRequest.addChildElement("Hotel","v9").addTextNode("Hilton");

我的SOAP消息

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   ...
     <v9:SoapMessage xmlns:els="URL TO SERVER">
         ...

我期望的是

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   ...
      <v9:SoapMessage>
           ...

更新：

如果我使用以下命令，则会遇到以下错误

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    SOAPElement HotelListRequest = getList.addChildElement("v9:SoapMessage");

    org.w3c.dom.DOMException: NAMESPACE_ERR: An attempt is made to create or change an object in a
                                             way which is incorrect with regard to namespaces.

相关讨论

要将名称空间前缀添加到所有标签，必须在每个插入的子代上重新声明所需的前缀(并最终声明名称空间)，否则它将从父元素继承(隐式)名称空间。

例如尝试：

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SOAPBodyElement getList = body.addBodyElement(bodyName,"v9","http://URL TO SERVER");

或

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soapBody.addChildElement("SomeElement","v9","http://URL TO SERVER");

或

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soapBody.addChildElement("v9:SomeElement");

有时您可能必须使用QName对象，而不仅仅是String或Name。

这在很大程度上取决于您使用的SOAP-API /实现，但是原理在所有地方都是相同的：重新声明(显式)或继承(隐式)。

相关讨论

在您期望的SOAP消息中，前缀的情况有所不同，似乎您正在编写客户端请求向.net中开发的服务提供商的请求，这就是为什么您可能需要更改前缀的原因。

我认为您可以从以下代码中了解概念：

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       MessageFactory messageFactory = MessageFactory.newInstance(SOAPConstants.SOAP_1_1_PROTOCOL);
    SOAPMessage soapMessage = messageFactory.createMessage();

    SOAPPart soapPart = soapMessage.getSOAPPart();

    SOAPEnvelope soapEnvelope = soapPart.getEnvelope();

    SOAPBody soapBody = soapEnvelope.getBody();

    soapEnvelope.removeNamespaceDeclaration(soapEnvelope.getPrefix());
    soapEnvelope.addNamespaceDeclaration("soap","http://schemas.xmlsoap.org/soap/envelope/");

    soapEnvelope.setPrefix("soap");
    soapBody.setPrefix("soap");

    soapEnvelope.addNamespaceDeclaration("xsi","http://www.w3.org/2001/XMLSchema-instance");
    soapEnvelope.addNamespaceDeclaration("xsd","http://www.w3.org/2001/XMLSchema");   soapMessage.getSOAPHeader().detachNode();

    soapMessage.getMimeHeaders().setHeader("SOAPAction","http://www.example.com/TransactionProcess");

有关更多详细信息，请访问此参考链接

相关讨论