Ans)
Client :
public class RESTclient {
private Service service;
private JAXBContext jc;
private static final String url = "
http://127.0.0.1:9090/restfulwebservice-war/poservice/";
private static final QName qname = new QName("", "");
private static final String poXML = "<tns:PurchaseOrderDocument
xmlns:tns=\"urn:PurchaseOrderDocument\">\n" ;
public RESTclient() {
try {
jc = JAXBContext.newInstance("com.sun.examples.rest");
} catch(JAXBException je) {
System.out.println("Cannot create JAXBContext " + je);
}
}
private void acceptPO() {
service = Service.create(qname);
service.addPort(qname, HTTPBinding.HTTP_BINDING, url + "acceptPO");
Dispatch<Source> dispatcher = service.createDispatch(qname, Source.class, Service.Mode.MESSAGE);
Map<String, Object> requestContext = dispatcher.getRequestContext();
requestContext.put(MessageContext.HTTP_REQUEST_METHOD, "POST");
Source result = dispatcher.invoke(new StreamSource(new StringReader(poXML)));
printSource(result);
}
public static void main(String argsp[]) throws Exception{
RESTclient client= new RESTclient();
client.acceptPO();
client.acceptPOJAXB();
}
}
Server Side :
@javax.xml.ws.WebServiceProvider
@javax.xml.ws.ServiceMode(value=javax.xml.ws.Service.Mode.MESSAGE)
public class PurchaseOrderService implements Provider<Source>{
private JAXBContext jc;
@javax.annotation.Resource(type=Object.class)
protected WebServiceContext wsContext;
public PurchaseOrderService() {
try {
jc = JAXBContext.newInstance("com.sun.examples.rest");
} catch(JAXBException je) {
System.out.println("Exception " + je);
throw new WebServiceException("Cannot create JAXBContext", je);
}
}
public Source invoke(Source source) {
try{
MessageContext mc = wsContext.getMessageContext();
String path = (String)mc.get(MessageContext.PATH_INFO);
String method = (String)mc.get(MessageContext.HTTP_REQUEST_METHOD);
System.out.println("Got HTTP "+method+" request for "+path);
if (method.equals("GET"))
return get(mc);
if (method.equals("POST"))
return post(source, mc);
if (method.equals("PUT"))
return put(source, mc);
if (method.equals("DELETE"))
return delete(source, mc);
throw new WebServiceException("Unsupported method:" +method);
} catch(JAXBException je) {
throw new WebServiceException(je);
}
}
/**
* Handles HTTP GET.
*/
private Source get(MessageContext mc) throws JAXBException {
String path = (String)mc.get(MessageContext.PATH_INFO);
if((path.indexOf("/errortest")!=-1) || path.equals("") || path.equals("/")){
mc.put(MessageContext.HTTP_RESPONSE_CODE, 400);
POProcessingProblem fault= new POProcessingProblem();
fault.setMessage("Unable to retrieve the order associated with the orderid you specified");
return new JAXBSource(jc, new ObjectFactory().createPOProcessingFault(fault));
}
// demonstrates verb in path strategy
if (path != null && path.lastIndexOf("/acceptPO")!=-1) {
try{
String xml= java.net.URLDecoder.decode(path.substring(10,path.length()),"UTF-8");
String replacedstr=xml.replace("http:/","http://");
Unmarshaller u = jc.createUnmarshaller();
JAXBElement o = (JAXBElement)u.unmarshal(new StringReader(xml.trim()));
PurchaseOrder request = (PurchaseOrder)o.getValue();
PurchaseOrderStatus response= acceptPO(request);
return new JAXBSource(jc, new ObjectFactory().createStatus(response));
}catch(java.io.UnsupportedEncodingException e){}
}
else
{ path.replace("/","");
PurchaseOrder order= retreivePO(path);
return new JAXBSource(jc, new ObjectFactory().createPurchaseOrderDocument(order));
}
throw new WebServiceException("Webservice does not understand the operation you invoked="+path);
}
}
<display-name>PurchaseOrder Service</display-name>
<listener>
<listener-class>com.sun.xml.ws.transport.http.servlet.WSServletContextListener</listener-class>
</listener>
<servlet>
<display-name>POServiceImpl</display-name>
<servlet-name>POServiceImpl</servlet-name>
<servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>POServiceImpl</servlet-name>
<url-pattern>/poservice/*</url-pattern>
</servlet-mapping>
</web-app>
In my previous post , I explained about making AJAX calls to a servlet from a JSP page and updating a part of the JSP page with th...
