Issue description:
I want dynamic consume WCF service in the code. Using ServiceDescription to read wsdl's definition, but for element of wsdl:import, it cannot read element from location source.
Question
I would like to know that does any class implemented by Microsoft can read all import files? The framework should provided such methods, but I am not master it now.
Thanks.
Related
My messaging provider gives me two different kinds of WSDLs to use.
http://my.amazonaws.com:8000/webservice/?wsdl
http://my.amazonaws.com:8000/webservice/?singleWsdl
The first one is an embedded WSDL. Can NOT use it to generate WSDL2java packages and
can NOT use JAX-WS to create a connection.
The second one is a single WSDL. It can generate Java packages with CXF 3.0's WSDL2java and can use JAX-WS to create a connection. It works very well.
Please let me know what is the difference between these two kinds of WSDLs.
Without knowing what those links return we can only guess, but here are some details that might help you....
Suffixing the web service endpoint with ?wsdl get's you a WSDL file. The WSDL can be generated by the framework at runtime based on the web service skeleton code or can be an actual physical file that the server just sends back when the URL parameter is specified.
The WSDL contains an XML Schema that can be specified either inside the WSDL itself or as separate files that are imported by the WSDL. And now a problem occurs...
Some web service stub generators can only handle a full WSDL, with the Schema inside. If the WSDL imports other files the tools can't resolve the imports and fails. This made web services hard to consume because clients had issues creating stubs to interact with the web service. So much so that service providers either used an actual WSDL to respond to the ?wsdl request or started writing all sorts of hacks and plugins to make the web service generate the full WSDL.
But some providers didn't even bother so clients had to write the hacks to parse the WSDL or they had to download all files, assemble them manually into a single file and use that instead.
With time people recognized this as a problem and frameworks adapted to provide the full WSDL, not one with imports. But this generated another problem. Changing what the ?wsdl URL returned could break all those hacks created around it to fix the import problem. For this reason another convention was chosen to return the full WSDL: ?singleWsdl.
So there are frameworks that generate a full WSDL, some that generate it with imports, some allow you to specify an actual physical file, some that support the ?singleWsdl convention, some that don't. Not relevant to this question, but just for completion, there is also a ?wsdl2 convention that get's you a WSDL 2.0 definition (?wsdl get you a WSDL 1.1). Some frameworks support ?wsdl2, some don't.
My guess is the issues you have are caused by Schema imports, but without the WSDLs themselves I can't tell. Hope at least that these details help you better identify the problem.
The idea is to call a method from a website(in php) to my application (in Grails). The application will serve data in json format.
The website and the application are hosted in two different servers. The website is on Yahoo and the application is on Rackspace.
Now, I want to create a web service in my Grails application which serves list of cities in json format.
City Class
class City {
String name
String code
}
How do i write the web service method?
Try the grails jaxrs plugin (https://github.com/krasserm/grails-jaxrs) which will do excactly what you want without any hassle.
Simply install it, create a Resource object with the introduced create-resource command and create and annotate the methods as you wish. all other things are managed by the plugin so you don't have to worry about Controller or UrlMapping...
You need only the annotation #Resource(uri='/cities') on your domain and call the url/cities.json (but, its'n RESTful)
You will want to use a few tools, first you will create a controller that deals with the requests and pushes them off to your service layer.
You can use URL Mappings to make it more RESTFul check out the doc that way all the http methods will be mapped to actions in your controller.
Also if you will be doing a fair bit of json I would recomend starting with the gson plugin it has a fuller feature set then the built in JSON support.
The link from the comment above is a great resource to read as well.
I have found that I most of the time want to support the accept header as well in which case you will need to update your config with the following code. See withFormat doc for more info.
grails.mime.use.accept.header = true
am new on WS.
some simple questions in my mind, please try to solve it.
i did a demo WS for Calculator on calculator(), where it has one UI where i enter values for it, internally pass it to WS. Ok i got answer/output. but if i want to create only webservice which take/give xml data or just give xml data. how can i create it.
i found some WS URL's about some fame company. is it used by using by opening Connection. how they define this URL? am using MyEclipse10 when i went to create new WS, needed to use Java Bean class for create it. ok, if i create myWS url then how it ll get call? because it is JavaBean?
and if just want to create WS then i need not required to create New WS client?
i dont know it is simple or may be foolish question, when i walk on WS i stop here. i feel like , without basic knowledge started to build it.
please, clear it.
Thanx.
MyEclipse (as well as Eclipse, IBM D Developer, etc) let you create a Java Web service server in one of two ways:
Bottom up Java Bean: you supply a bean, it turns it into a WSDL (and generates the corresponding stub code)
Top down WSDL: you supply a WSDL, and it generates the corresponding stub code
When a company creates a web page, they set up a web server and publish some HTML pages on it.
When a company publishes a WSDL, they also set up a web server ... and publish an XML WSDL on it.
The URL you go to in order to read a WSDL is just an ordinary HTTP web server, that happens to be serving an XML WSDL at that location.
The WSDL specifies where the service can be found, and what operations and data types the service uses. A WSDL you create, or a WSDL that's published by some other company.
'Hope that helps
I am trying to consume an existing web-service from another company and have troubles to find a solution to use the same web-service from different location.
An existing web-service is available at the address http://url.to.A/webservice/ and I am able to generate a C++ proxy class for this service using sproxy.exe from the ATL tools.
Using that class, I can consume the web-service without any problem.
Now I need to consume the same web-service but from another URL (let's say http://url.to.B/webservice/) and the previously created proxy class is not working. The SendRequest method inside one of method proxy always returns an erroneous HRESULT code. Generating a new proxy specifically for this second service gives a working solution BTW.
When I say that the services are the same I mean that they expose exactly the same methods so that their respective wsdl definition files differ only by the service URL.
I've tried to change the URL property of the generated proxy class instance but it doesn't help.
Given that I am tied to use unmanaged C++ for the consuming part and that I would like to be able to specify the service endpoint at runtime, is there a viable solution to my problem?
Thanks for your help.
Generate a separate proxy class for each server/service.
Then do a diff on the generated code. That should let you know what the differences are.
It finally turned out that it's not possible, using sproxy.exe, to generate a class that can be dynamically assigned to a webservice endpoint.
Is it possible to develop Restful services for GET,PUT, POST and DELETE using an XML file as data source? I am using Netbeans 6.5.1 . Any references which I could use?
Sure, you can. You need to create a REST controller with the different REST methods (anotated with #GET, POST, ...). These methods will need to access the xml file. You should have a dedicated class for managing the file (with CRUD operations, etc.).
I think you can automatically generate your web service skeleton with netbeans but as it's not my IDE I am not sure. Anyway writing a REST resource is very simple. Look for Jersey examples as I guess you will select this library.