SOAP消息创建

看了SOAP消息分析之后，大家对soap消息应该有了一个初步的认识，那么怎样自己编写一个soap消息呢？
先来创建一个简单的soap消息：

    @Test
    public void test1(){
        try {
            //1.创建消息工厂
            MessageFactory factory = MessageFactory.newInstance();
            //2.根据消息工厂创建SoapMessage
            SOAPMessage message = factory.createMessage();
            //3.创建SOAPPart
            SOAPPart part = message.getSOAPPart();
            //4.获取SOAPEnvelope
            SOAPEnvelope envelope = part.getEnvelope();
            //5.可以通过信封有效的获取header和body的内容
            SOAPBody body = envelope.getBody();
            //6.根据QName创建相应的节点，QName是带有命名空间的节点
            //这里是创建一个<lenve:add xmlns="http://www.lenve.test">
            QName qname = new QName("http://www.lenve.test", "add", "lenve");
            body.addBodyElement(qname);
            message.writeTo(System.out);
        } catch (SOAPException | IOException e) {
            e.printStackTrace();
        }
    }

输出：

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/><SOAP-ENV:Body><lenve:add xmlns:lenve="http://www.lenve.test"/></SOAP-ENV:Body></SOAP-ENV:Envelope>

和我们在上一篇中用tcpmon捕获的消息一致，没问题。可是这个body里边是空的，那么怎样给body中添加内容呢？

    @Test
    public void test2(){
        try {
            MessageFactory factory = MessageFactory.newInstance();
            SOAPMessage message = factory.createMessage();
            SOAPPart part = message.getSOAPPart();
            SOAPEnvelope envelope = part.getEnvelope();
            SOAPBody body = envelope.getBody();
            QName qname = new QName("http://www.lenve.test", "add", "lenve");
            SOAPBodyElement element = body.addBodyElement(qname);
            element.addChildElement("a").setValue("3");
            element.addChildElement("b").setValue("4");
            message.writeTo(System.out);
        } catch (SOAPException | IOException e) {
            e.printStackTrace();
        }
    }

输出：

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/><SOAP-ENV:Body><lenve:add xmlns:lenve="http://www.lenve.test"><a>3</a><b>4</b></lenve:add></SOAP-ENV:Body></SOAP-ENV:Envelope>

<a>3</a><b>4</b>都已经顺利添加进去了。

下一篇看soap消息的传递和处理。