@WebServiceClient Annotation

[yhqian99]

Hi all,

I have a web service client code with Annotation like the following, as you can see the web service IP ( 192.168.31.229 ) is hard coded, and it appears in three places in the code. I need to update code and compile it again when the IP has changed . now I am trying to store the IP in a configuration file and read the IP from it when the application started.

My question is:
do I need to replace the IP in the @WebServiceClient annotation? if yes, how to do it? Thanks a lot! ----Yhqian



@WebServiceClient(name = "TelWebServiceImplService", targetNamespace = "http://impl.service.bsi.com/", wsdlLocation = "http://192.168.31.229:8888/SCSERC_CHK/ws/telWebService?wsdl")

public class TelWebServiceImplService extends Service {

.........................

static {
URL url = null;
try {
URL baseUrl;
baseUrl = com.ictbox.acc.trigger.ggxx.TelWebServiceImplServi ce.class
.getResource(".");
url = new URL(baseUrl,
"http://192.168.31.229:8888/SCSERC_CHK/ws/telWebService?wsdl");
} catch (MalformedURLException e) {
logger.warning("Failed to create URL for the wsdl Location: 'http://192.168.31.229:8888/SCSERC_CHK/ws/telWebService?wsdl', retrying as a local file");
logger.warning(e.getMessage());
}
TELWEBSERVICEIMPLSERVICE_WSDL_LOCATION = url;
}

.........................

}

[SurfMan]

If the value is a String, then it must be a compile time constant. You can't have dynamic String values in annotations.

See also, the tough read: Chapter*9.*Interfaces

[yhqian99]

you said :You can't have dynamic String values in annotations

In what condition we can have dynamic values in annotations?

[yhqian99]

If the value is a String, then it must be a compile time constant. You can't have dynamic String values in annotations.

See also, the tough read: Chapter*9.*Interfaces

I think this requirement is quite general, for example, the test IP and production IP is different,
is there a way to dynamically reference web service? My application is just a java standalone application, not dependent on some framework.

[SurfMan]

you said :You can't have dynamic String values in annotations

In what condition we can have dynamic values in annotations?

None.

The spec says:

T is not an array type, and the type of V is assignment compatible (§5.2) with T, and:
- If T is a primitive type or String, then V is a constant expression (§15.28).
- If T is Class or an invocation of Class (§4.5), then V is a class literal (§15.8.2).
- If T is an enum type (§8.9), then V is an enum constant (§8.9.1).
- V is not null.

So, this annotation has three Strings:

@WebServiceClient(name = "TelWebServiceImplService", 
                              targetNamespace = "http://impl.service.bsi.com/", 
                              wsdlLocation = "http://192.168.31.229:8888/SCSERC_CHK/ws/telWebService?wsdl")

- They all must be literal as they are now, or some static final String "constant" MyClass.SOME_STRING_CONSTANT.
- If it's a primitive, then the value must be a literal, like 1 or true, or MyClass.MY_INT_CONSTANT
- If it's a Class, then the value must be a class literal in the form of String.class, MyObject.class, etc
- If it's an enum, then the value must be an enum, Directions.WEST, Directions.NORTH, whatever enum you have...
- and the value can't be null, so this is illegal: wsdlLocation=null

[SurfMan]

This post might be of help: java - How to avoid the need to specify the WSDL location in a CXF or JAX-WS generated webservice client? - Stack Overflow