First be sure you have property placeholders defined. Below is the syntax where a config.properties file has been defined to be used and it is placed in src/main/resources directory of your project.
Now in you properties file you can define the stuffs like below
implementation.url=http://abc-cdc.com
This URL can be accessed from web service consumer application using below.
ws:consumer-config doc:name="Web Service Consumer" name="Web_Service_Consumer" connectorConfig="HTTPS_Request_Configuration" wsdlLocation="ServiceWSDL/Manager.wsdl" serviceAddress="![p['implementation.url']]" port="ManagerSOAPPort" service="ManagerService"
In above example I am using only serviceAddress from config.properties file. Please let me know how it goes.