Java – How to specify host and port when accessing a web service from JAX-WS-generated code

javajax-wsweb services

I have a WSDL file for a web service. I'm using JAX-WS/wsimport to generate a client interface to the web service. I don't know ahead of time the host that the web service will be running on, and I can almost guarantee it won't be http://localhost:8080. How to I specify the host URL at runtime, e.g. from a command-line argument?

The generated constructor MyService(URL wsdlLocation, QName serviceName) doesn't seem like what I want, but maybe it is? Perhaps one of the variants of Service.getPort(...)?

Thanks!

Best Answer

The constructor should work fine for your needs, when you create MyService, pass it the url of the WSDL you want i.e. http://someurl:someport/service?wsdl.

Use the Binding Provider to set the endpoint URL

The first option is to change the BindingProvider.ENDPOINT_ADDRESS_PROPERTY property value of the BindingProvider (every proxy implements javax.xml.ws.BindingProvider interface):

...
EchoService service = new EchoService();
Echo port = service.getEchoPort();

/* Set NEW Endpoint Location */
String endpointURL = "http://NEW_ENDPOINT_URL";
BindingProvider bp = (BindingProvider)port;
bp.getRequestContext().put(BindingProvider.ENDPOINT_ADDRESS_PROPERTY, endpointURL);

System.out.println("Server said: " + echo.echo(args[0]));
...

The drawback is that this only works when the original WSDL is still accessible. Not recommended.

Use the WSDL to get the endpoint URL

The second option is to get the endpoint URL from the WSDL.

...
URL newEndpoint = new URL("NEW_ENDPOINT_URL");
QName qname = new QName("http://ws.mycompany.tld","EchoService"); 

EchoService service = new EchoService(newEndpoint, qname);
Echo port = service.getEchoPort();

System.out.println("Server said: " + echo.echo(args[0]));
...

Java – overriding or setting web service endpoint at runtime for code generated with wsimport

Your client can set the end-point in the service "port" at runtime via the BindingProvider interface.

Consider the JAX-WS client in this JAX-WS tutorial. Another way to write this code would be:

HelloService service = new HelloService();
Hello port = service.getHelloPort();
BindingProvider bindingProvider = (BindingProvider) port;
bindingProvider.getRequestContext().put(
      BindingProvider.ENDPOINT_ADDRESS_PROPERTY,
      "http://foo:8086/HelloWhatever");
String response = port.sayHello(name);

Caveat: I haven't downloaded the tutorial code and tested this code against it.

Best Answer

Related Solutions

Java – How to change webservice url endpoint

Use the Binding Provider to set the endpoint URL

Use the WSDL to get the endpoint URL

Java – overriding or setting web service endpoint at runtime for code generated with wsimport

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