解析SOAPMessage响应，将其转换为String XML并获取Node值

Question

我正在使用此方法将SOAPMessage响应转换为XML String。转换后，我需要获取特定的节点值。

    /**
	 * Method used to convert the response to XML string
	 */
	    private String getSOAPResponseString(SOAPMessage soapResponse) throws Exception {
		StringWriter sw = new StringWriter();
		TransformerFactory transformerFactory = TransformerFactory.newInstance();
		Transformer transformer = transformerFactory.newTransformer();
		Source sourceContent = soapResponse.getSOAPPart().getContent();
		StreamResult result = new StreamResult(sw);
		transformer.transform(sourceContent, result);
		//System.out.println(sw.toString());
		//System.out.println(soapResponse.getMimeHeaders());
		return sw.toString();
	}
   

我从XML String中检查这个节点。但它并不总是以

的形式出现

String responseMsg = response.substring(response.indexOf("<providerReturnMessage>") + "<providerReturnMessage>".length() ,            response.indexOf("</providerReturnMessage>"));
				

有时它前面有一个前缀，就像这样     <axis2ns7:providerReturnMessage>, <axis2ns8:providerReturnMessage>，如何在此节点中读取消息文本，忽略前面的前缀。