soap消息分析和soap消息的传递和处理（一）

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WebService传递的时候实际上是传递一个SOAPMessage，我们来探究一下SOAPMessage的组成。

SOAPMessage由一个个的SOAP块组成，这些SOAPPart被封装到一个SOAPEnvelope（信封）中，信封中包括head和body。我们可以自己创建一个SOAPMessage发送到服务提供端，从而返回WebService调用结果。

WebService服务创建代码参考上篇，本篇探讨SOAPMessage的组成和发送。

TestClient.java

package com.smile.service;import java.io.IOException;import java.net.URL;import javax.xml.namespace.QName;import javax.xml.soap.MessageFactory;import javax.xml.soap.SOAPBody;import javax.xml.soap.SOAPBodyElement;import javax.xml.soap.SOAPEnvelope;import javax.xml.soap.SOAPException;import javax.xml.soap.SOAPMessage;import javax.xml.soap.SOAPPart;import javax.xml.ws.Dispatch;import javax.xml.ws.Service;import org.junit.Test;public class TestClient {private String wsdlUrl = "http://localhost:8889/ns?wsdl";private String ns = "http://service.smile.com/";@Testpublic void test(){try {//创建消息工厂MessageFactory factory = MessageFactory.newInstance();//根据消息工厂创建SOAPMessageSOAPMessage message = factory.createMessage();//创建SOAPPartSOAPPart part = message.getSOAPPart();//获取SOAPEnvelope soap信封SOAPEnvelope envelope = part.getEnvelope();//可以通过SOAPEnvelope获取head body等信息SOAPBody body = envelope.getBody();//根据QName 创建相应的节点QName qname = new QName("http://smile.web.com/webservice", "add", "ws");//<ws:add xmlns="http://smile.web.com/webservice"/>//使用以下方式设置< > 会被转义//body.addBodyElement(qname).setValue("<a>1</a><b>2</b>");SOAPBodyElement element = body.addBodyElement(qname);element.addChildElement("a").setValue("1");element.addChildElement("b").setValue("2");try {message.writeTo(System.out);} catch (IOException e) {e.printStackTrace();}} catch (SOAPException e) {e.printStackTrace();}}@Testpublic void test2(){try {//创建服务（Service）URL url = new URL(wsdlUrl);QName sname = new QName(ns,"MyServiceImplService"); Service service = Service.create(url, sname);//创建DispatchDispatch<SOAPMessage> dispatch = service.createDispatch(new QName(ns,"MyServiceImplPort"),SOAPMessage.class,Service.Mode.MESSAGE);//创建消息工厂MessageFactory factory = MessageFactory.newInstance();//根据消息工厂创建SOAPMessageSOAPMessage message = factory.createMessage();//创建SOAPPartSOAPPart part = message.getSOAPPart();//获取SOAPEnvelope soap信封SOAPEnvelope envelope = part.getEnvelope();//可以通过SOAPEnvelope获取head body等信息SOAPBody body = envelope.getBody();//根据QName 创建相应的节点QName ename = new QName(ns, "add", "ws");//<ws:add xmlns="http://smile.web.com/webservice"/>//使用以下方式设置< > 会被转义//body.addBodyElement(qname).setValue("<a>1</a><b>2</b>");SOAPBodyElement element = body.addBodyElement(ename);element.addChildElement("a").setValue("22");element.addChildElement("b").setValue("33");message.writeTo(System.out);System.out.println("\t");System.out.println("Invoking.....");SOAPMessage response = dispatch.invoke(message);response.writeTo(System.out);} catch (Exception e) {e.printStackTrace();}}}

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