I'm looking for an easy way to acces wsdl file from java.
In python with suds I can do somethin like:
self.wsdlClient = Client(WSDL_URL)
wsdlClient.methodName()
Is there a way to connect to wsdl through an URL?
Python is a dynamic language so you can create methods on an object on the fly, like for example a method for each operation of your web service as discovered by reading the WSDL. But Java is not a dynamic language so the Python approach can't be used.
You either have to generate the code at design time (i.e. create a stub) by feeding the WSDL to some tool like wsimport.exe (or other tools) then use the generated code in your application or ...
... you have to parse the WSDL at runtime and create the XML payload based on the information you acquired from the WSDL, in which case you might want to look at the following tool: soap-ws.
The easiest way is to generate a stub.
Related
I want to create a Python RESTful Webservice and Java Webservice Client. I am using Python 2.7. I used web.py to create webservice. On client side (Java) , I want a WSDL file to invoke Python Webservice. Where can I find it? I have configured everything on my laptop.
Update: I refer Python simple example and this doesn't creates it.
Thanks !
Looks like you can always generate a url for the .wsdl file like in this example.
I simply created org.apache.http.client.HttpClient in java to invoke this. Though, I am curious to know wsdl file location.
As #Avenet advised, you can use soaplib, which became rpclib, which in turn became spyne. So check that, please.
People usually use the opposite workflow - they create WSDL manually and than generate stubs of code, so you have a good start, which you than extend with your business logic. Advantage is that it can generate both client and server stubs.
But both workflows should work - generating WSDL from a service, or generating code stubs from a WSDL. For learning purpose I would advice you to create WSDL manually.
I have the following requirements and thinking about how to best get java objects from a WSDL.
XML data comes from a public SOAP Webservice
I have to use JAXB
I want to automatically unmarshall the retrieved data to Java objects
Ideally I'd like to have java objects using JAXB Annotations. Are there any tools that I could combine to autogenerate these?
Sure, there are lots of ways to use JAX-WS (which uses JAXB for its XML binding) to generate a web service client.
You can execute it from the command-line:
http://www.mkyong.com/webservices/jax-ws/jax-ws-wsimport-tool-example/
As part of your Maven build:
https://jax-ws-commons.java.net/jaxws-maven-plugin/
Or from within your Eclipse environment:
http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.jst.ws.cxf.doc.user%2Ftasks%2Fcreate_client.html
Yes, there are. With every jdk, there is an executable file called wsimport that does exactly what you want.
Here is an answer i gave to a similar question.
Just a little background:
I have a wsdl and schema files with a lot of hierarchy, meaning there are a lot of import/include tags in the schema. I have a netbeans project and used wsimport to generate the client code. I’m successfully calling the web service operations and getting data.
What I need:
I'm looking to get access to the model the xjc compiler uses to generate the java code from the schema. I would like to do this without writing my own plugin if possible. I want to use this model to generate my own code with codemodel.
The question is:
Is there a way to get access (preferably from my client project described above) to the model or 'outline' without writing a xjc plugin?
I’m new to java and jaxb so any direction and detailed instructions are much appreciated.
You can invoke the xjc compiler directly by using Ant or Maven. Just point it at the schemas referenced. If you need some control over the code generated, you could look at custom binding in JAXB.
What exactly are you trying to accomplish?
Im a Newbie in wsdl parsing and my information about WSDL is very limited.
I have a scenario in which there is a wsdl file with multiple operations and i want to get the wsdl for a specific operation from that. Is there any libs in java or JS to accomplish such a task . Or am i missing something.
Please correct me if there is anything wrong in the question ,
Thanks in Advance
Bijesh
WSDLs represent a single service with specific operations. Those operations belong to the service can't be separated from the service itself. In order to simply invoke one method you'll have to bind against the entire service (and all other operations and defined types). If you are publishing the operation, you'll have to bind and publish all operations and types defined in the service. There isn't really a way around that.
Now, in your case if you are using java and if you are acting as a client, you can do what Alfredo O alluded to and use a SOAP framework's tooling to generate all of the java client code for you. From there it's just a matter of using the actual service class and invoking the method on that class that corresponds to the method you want to call. You'll have to use the entire wsdl, but from the perspective of your code you won't have to worry about calling any other methods than the one that interests you.
Popular choices for generating a java client for a SOAP service are:
Apache CXF
Metro
Apache Axis2
You can use Axis 2 to auto-generate the java code needed to invoke those operations. Use the wsdl2java tool provided by Axis 2.
I need to create connection to web service with axis2. I would like to know how can I convert recieved xmls to Java objects. Is there any good tutorials to learn how to do this?
Axis2 is pretty well documented. Make sure to check the axis2 user guide.
On the other hand be aware of that using web services and axis2 is not a piece
of cake sort of think, so read the docs exhausitvly. ;)
Either the XML is part of the SOAP request. In that case, Axis2 will convert it to Java for you.
If XML is part of a "data blob", then you need to do this yourself. There are several options:
You can have a look at the generators which Axis2 uses. Try the docs.
Use an XML OO mapper like Castor.
You can write your own mapper (not really recommended).
If you can influence the sender side, you can try to create XML that follows the rules for XMLEncoder. That would allow you to use the standard Java Serialization API to build objects.
use axis wsdl2java tool and put generated classes to your source files. Then first create a service stub with YourServiceStub(Service_Adress) and use that instance to invoke necessary methods.
for wsdl2java i commonly use:
wsdl2java -uri wsdlLocation -ss -sd -uw -g -o outputLocation