Grails和使用SOAP Web服务

Question

Being fairly new to Grails i was wondering what people use to consume a webservice in Grails projects. So the client side of the system? Any recommendations? I see people using GroovyWS, Spring-WS etc.. What is a good and easy on to use?

Answer 1

GroovyWS非常易于使用，并且有很好的文档，我肯定会推荐它。

Answer 2

Using Grails CXF plugin here. Needed:

1. classloader workaround - DynamicClientFactoryit changed a current classloader;
2. and to code WS invocations by hand.

Besides that, the consumer code is pretty slim.

Edit: sorry, no more then this, and I'm not sure I'm not breaking and NDA yet:

#1:

def arrayOfLong = objectFactory.createArrayOfLong(XXX, ids)
result = client.invoke(methodName, arrayOfLong as Object[])

#2:

def dcf = DynamicClientFactory.newInstance()
def classLoader = Thread.currentThread().getContextClassLoader()

// create a WS client
// and assign end point address to it
def client = dcf.createClient(WSDL_URL, classLoader)
client.conduit.target.address.setValue(endpointUrl)

// reacquire classloader because 'createClient' changes it
def changedClassLoader = Thread.currentThread().getContextClassLoader()
def objectFactory = changedClassLoader.
    loadClass(FACTORY_CLASS_NAME).newInstance()

Answer 3

Using Grails 1.3.7 I am consuming my own web service with WS-Client Grails plugin . It is actually based on GroovyWS, which in turn uses CXF. It is very easy to use at least in my simple scenario, where I only get Strings from the backend web service. I have no idea how it works with complex data types yet though.

I had never consumed or created a webservice before but using that plugin in the frontend and the Grails CXF plugin in the backend I got a SOAP discussion between my grails apps in two days. You don't really need to use CXF or GroovyWS directly with the very nice ws-client plugin. Speed (of development) and simplicity.