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
Related
I have a grails project where I need to place a report in a CRM called Lagan. I am using grails cxf client for accessing SOAP web services of Lagan. By following the example given in https://github.com/Grails-Plugin-Consortium/grails-cxf-client-demo
I am not able to correctly set the configuration parameters in conf file. I got a user name and password and url for accessing the lagan server which is part of a website.
Does anybody have experience in integraing with Lagan?
Starting with new web service is always hard part. I found useful to first figure out correct SOAP envelope. For example using this https://chrome.google.com/webstore/detail/wizdler/oebpmncolmhiapingjaagmapififiakb plugin. When you have envelope that is working fine you can start troubleshooting your library. Review SOAP differences.
When I'm tasked with dealing with connecting to web services, I've always found the appropriate .wsdl file, ran WSDL2Java.bat, and incorporated those Java files into my Java project. Then I've successfully completed my project that needs to access data via web services.
My question is, are there other ways to use the .wsdl file to access web services? ( I'm not talking about creating classes for different languages ). For example, I have documentation describing one company's web services. The examples it shows in it's documentation are essentially dumps of HTTP Post requests. Is this "web services"? It looks to me that the .wsdl file is merely used as a reference to make the correct Post requests. I could just make text templates and plug in the right values, and send them out, right? I really feel like I'm missing something here.
Am I a web-services illiterati?
To call a SOAP web service over HTTP you just need to send it a properly formatted XML with a POST request. That's it! How you build the request is irrelevant as long as it conforms to the SOAP protocol and the payload corresponds to a proper web service operation that exists on the particular web service you are calling.
But how do you know how to build the proper payload?
The web service needs to have some sort of documentation otherwise you don't know what to put inside the XML. The documentation can be whatever you like as long as people can use it to build valid requests. WSDL fits this criteria but has an extra advantage: you can feed it to a tool that generates code. That code knows how to handle all the SOAP details and exposes objects and methods to your application.
What would you prefer? Generating code from the WSDL in a few minutes and be able to call whatever operation on the web service or, build the requests and parse the responses by hand and spend hours or days doing so. What would your boss or company prefer? :)
It looks to me that the .wsdl file is merely used as a reference to make the correct Post requests. I could just make text templates and plug in the right values, and send them out, right?
Right! But you also have to consider your productivity as an employee in one case as opposed to the other.
I would like have a solution for creating a WebServices client and it needs to consume the Services which already existed.
I have code this from Netbeans ide but my requirement is the wsdl url must be a dynamic one and more specific it needs to fetch from .xml,please suggest me to do that dynamic..cheers
If you are building a Java EE application you can create a web service client in Netbeans. Otherwise you need to code it on your own or use a external tool or library.
You need to parse the XML and read the WSDL URL from it, you can find in the net for how to read the data from the XML
Once done,using the URL you got from the XML you can call the service endpoint (The code you have already)
I need to use the SOAP service of a printer. There is a windows tool to access this service and I used it to generate SOAP requests and responses of the important functions that I need.
Now I should write a client for Linux using Python and I found the easiest way would be to use the suds library with an WSDL file. But I don't have this WSDL!
As I investigated the windows tool (looked at the hexdump of the executables), I came to the conclusion that there probably is no WSDL file at all.
Now my question is, has anybody experience with "reverse engineering" SOAP services and knows tools which could be useful for creating WSDL files for existing services? (Googleing hasn't brought up anything useful yet).
You mentioned this is the SOAP service of a printer. Is the printer's API documented on the manufacturer's site? Does the documentation include the WSDL? Can you get the WSDL from the manufacturer?
If you can get the WSDL from the manufacturer then you're done!
If not, then you have to build the WSDL by yourself because I doubt you can find a tool that generates WSDLs given SOAP samples (when working with SOAP web services you mainly get two kinds of tools: those that generate code from WSDL + those that generate WSDL from code).
It's not hard to create the WSDL if you are familiar with SOAP, WSDL and XSD. You just need a text editor or maybe even a WSDL editor to speed things up.
If you don't have full confidence in your WSDL knowledge, there are still some tools that can get you most of the way to the complete WSDL. Here is a way you could do it:
1 - First you need to create the XML schema for the SOAP payloads. For this you can find tools, even some online. After you have the schema, tweak it to your needs by adding, changing or removing elements.
2 - Now you can use the XSD to generate a WSDL. There is an online tool that does that. It just needs the request/response element types to end with Request/Response. Make sure you read the instructions.
You take your XSD file, change the names of the operations to add the Request/Response suffix and feed it to the WSDL Generator - Web Tool. You will get your WSDL.
Now tweak this WSDL as you like (remove the Request/Response suffixes if you don't need them) then ...
3 - ... make sure you end up with a valid WSDL.
4 - Now you can take your WSDL and use a tool like SoapUI to generate sample requests and responses from it just to verify that you get the proper results back.
Do the SoapUI messages match the messages you started with? If yes, you are done and can feed the WSDL to suds to create the Linux client. If not, tweak the WSDL until you get the result you are after.
I published an orchestration in Biztalk as a webservice. Does anyone know how I can use XML serialization or something to load XML from a file and "convert" it to the messagetype the webservice expects? How do people usually use this webservices? I try to avoid using untyped messages since I use both XML and flatfile, and have read that it could mean trouble.
Well, I guess generally the idea of web services is that you add a web reference to them, which would generate a set of proxy classes you could use to interact with the web service.
You don't normally have to worry about serialising xml files to and from the web service formats, the generated code will do it for you.
If you do wish to, however, to work of XML, you could use .net serialisation to deserialise an xml file into the generated proxy type (as well as serialise any response you're getting).
Here's a basic example of how to deserialise xml into a class instance, you can then pass this instance into the method in the generated proxy.
System.Xml.Serialization.XmlSerializer xser = new System.Xml.Serialization.XmlSerializer(typeof(<generated request type here>));
xser.UnknownAttribute += new System.Xml.Serialization.XmlAttributeEventHandler(xser_UnknownAttribute);
xser.UnknownElement += new System.Xml.Serialization.XmlElementEventHandler(xser_UnknownElement);
xser.UnknownNode += new System.Xml.Serialization.XmlNodeEventHandler(xser_UnknownNode);
xser.UnreferencedObject += new System.Xml.Serialization.UnreferencedObjectEventHandler(xser_UnreferencedObject);
<generated request type here> request = (<generated request type here>)xser.Deserialize(<xml stream here>);
I hope that makes sense
You question is bit confusing. You started off with saying you published an orchestration as web service, but raised the question about consuming it.
If you are talking about published web service:
The web service generated by BizTalk Web service Wizard is not different from a web service you would have written in .NET. Based on the message type you orchestration is expecting and how your structured the operation in the wizard. The Wizard would have auto generated a webservice for you with WSDL and schemas (there will be some BizTalk specific bits inside, but you don't need to worry about the implementation).
You consumers (independant of platform) should be able to consume that web service without any major issues.
If you are trying to consume a web service from Orchestration
Have a look at this paper http://msdn.microsoft.com/en-us/library/ms935219(BTS.10).aspx