基于SAAJ的Web服务----（三）从SOAP消息中提取内容

来源：互联网发布：spark连接巨杉数据库编辑：程序博客网时间：2024/06/05 22:47

我们得到SOAP消息后，怎么从里面提取内容呢？这里我们改造一下前面（一）中的代码，如下：

public void extractDOMFromSOAP() {try {URL wsdl = new URL("http://localhost:8080/test/HelloWorld?wsdl");String ns = "http://server.hw.demo/";String svcName = "HelloWorld";QName svcQName = new QName(ns, svcName);Service service = Service.create(wsdl, svcQName);String portName = "HelloWorldImplPort";QName portQName = new QName(ns, portName);Dispatch<SOAPMessage> dispatch = service.createDispatch(portQName,SOAPMessage.class, Service.Mode.MESSAGE);SOAPMessage soapMsg = MessageFactory.newInstance().createMessage();SOAPPart soapPart = soapMsg.getSOAPPart();SOAPEnvelope env = soapPart.getEnvelope();SOAPBody body = env.getBody();String iNs = "http://server.hw.demo/";String elementName = "sayHi";QName isbnQName = new QName(iNs, elementName);body.addBodyElement(isbnQName);soapMsg.writeTo(System.out);System.out.println();System.out.println("---invoke-----");SOAPMessage response = dispatch.invoke(soapMsg);response.writeTo(System.out);Document doc = response.getSOAPBody().extractContentAsDocument();NodeList nodes = (NodeList) doc.getElementsByTagName("return");String value = nodes.item(0).getTextContent();System.out.println();System.out.println("return:"+value);} catch (Exception e) {e.printStackTrace();}}

注意：Document和NodeList是org.w3c.dom包。

输出结果如下：

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/><SOAP-ENV:Body><sayHi xmlns="http://server.hw.demo/"/></SOAP-ENV:Body></SOAP-ENV:Envelope>---invoke-----<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Header/><soap:Body><ns2:sayHiResponse xmlns:ns2="http://server.hw.demo/"><return>Hello </return></ns2:sayHiResponse></soap:Body></soap:Envelope>return:Hello