WebService Study Notes (iv)-SOAP message format and processing method

the format of a SOAP message

Two creation of SOAP messages

Java code:

1. Create message factory
messagefactory factory = Messagefactory.newinstance ();
2. Create SoapMessage
SoapMessage message = Factory.createmessage () According to the messaging factory;
3. Create Soappart
Soappart part = Message.getsoappart ();
4, obtain SoapEnvelope
SoapEnvelope envelope = Part.getenvelope ();
5, can be effective through SoapEnvelope to obtain the corresponding body and header information
soapbody BODY = Envelope.getbody ();
6. Create the corresponding node according to QName (QName is a node with a namespace)
//<ns:add xmlns= "Http://java.zttc.edu.cn/webservice"/>
QName QName = new QName ("Http://java.zttc.edu.cn/webservice", "Add", "ns");
If you use the following methods to set up, meet <> convert to &lt; and &gt
//body.addbodyelement (QName). SetValue ("<a>1</a> <b>2</b> ");
Soapbodyelement ele = body.addbodyelement (QName);
Ele.addchildelement ("a"). SetValue ("22"); Ele.addchildelement ("B"). SetValue ("the");
Print message information
Message.writeto (System.out);

three message passing

Java code:

1. Create service URL url = new URL (wsdlurl);
QName sname = new QName (ns, "Myserviceimplservice");

Service service = Service.create (url,sname); 2. Create Dispatch dispatch<soapmessage> Dispatch = Service.createdispatch (new QName (NS, "Myserviceimplport"),

Soapmessage.class,service.mode.message);
3. Create SoapMessage soapmessage msg = Messagefactory.newinstance (). CreateMessage ();
SoapEnvelope envelope = Msg.getsoappart (). Getenvelope ();

Soapbody BODY = Envelope.getbody (); 4. Create QName to specify the data passed in the message QName ename = new QName (ns, "Add", "NN"),//<nn:add xmlns= "xx"/> soapbodyelement ele =
Body.addbodyelement (ename);
Ele.addchildelement ("a"). SetValue ("22");
Ele.addchildelement ("B"). SetValue ("33");
Msg.writeto (System.out);

System.out.println ("\ n invoking ...");
5, pass the message through dispatch, will return the response message soapmessage response = Dispatch.invoke (msg);
Response.writeto (System.out);

System.out.println (); 6. Response message processing, convert the response message to a DOM object Document doc = Response.getsoappart (). Getenvelope (). GetBody (). Extractcontentasdocument ();
String str = doc.getelementsbytagname ("Addresult"). Item (0). Gettextcontent ();
 System.out.println (str);