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Generating Java from WSDL for use on Android with ksoap2-android SOAP client?

I have to access a existing SOAP webservice from an Android application. I have been provided some WSDL files describing the webservice. Reading some other answers here on SO, it seems ksoap2-android is the way to go, with respect to which SOAP client to use.
The next issue is then how to generate the Java classes needed from the WSDL files, and this is where I am coming up short. As far as I can see there are the following options:
AXIS2 code generator
WSDL2ksoap
JAX-WS wsimport tool
I initially tried #1, with the AXIS2 eclipse plugin for wsdl2code generator. The wizard did successfully generate a lot of Java code, however it also changed my android project to some kind of webservice project, and I was never able to get anything that was generated to compile, let alone work with ksoap2-android. Has anybody has success with this?
I am not able to run wsdl2ksoap successfully, as it seems to require a running webservice, and all I have at the current point in time is WSDL files. Likewise from reading the webpage, it seems to be a project in its initial stages, and not really ready for prime time.
JAX-WS wsimport I have not had a chance to try yet. However I am unsure if what it generates will work with ksoap2-android?
Question: How can I generate Java files from WSDL files, for use on Android with ksoap2-android SOAP client library?
Thanks a lot in advance.
(PS: Yes, the choice is SOAP, it is suboptimal for Android use, but I cannot change that.)

I found this tool to auto generate wsdl to android code,
http://www.wsdl2code.com/example.aspx
Here is the code:
public void callWebService() {
SampleService srv1 = new SampleService();
Request req = new Request();
req.companyId = "1";
req.userName = "userName";
req.password = "pas";
Response response = srv1.ServiceSample(req);
}

I had similar situation (I had only wsdl file without working webservice). I've used
http://easywsdl.com/
to generate classes for android without any problem. This tool uses ksoap library. The great thing with this tool is that it supports WCF extensions and types like data contract with IsReference attribute or Guid.

My conclusion after quite a bit of researching is that there is no such (mature) tool available, unfortunately. Neither AXIS2 or JAX-WS will work on Android, and WSDL2ksoap is simply too immature for any real use.
However there is a proprietary tool called wsclient++ that will do the job really well. (Read update below, when put to real use, it does not stand the distance at all.) It does not use the ksoap2-android client library, it has it's own.
The client library is a bit crude as it has a hard dependency on the http transport, making (unit) testing a bit complicated. But it can be modified quite easily to allow DI, as the source is available in the distributed jar file.
The wsdl to java generator however works just perfect, and will save us tons of time.
Update
After working with wsclient++ for a while, it is clear that the generated classes are really crude, and does not handle error cases at all. (Every method declares throws Exception).
We are no longer using wsclient++, and I would not recommend anyone to use it!
We have not really found any working alternative, unfortunately. :/
In the end we converted our WSDL files using AXIS2, and then wrote a bunch of custom script to strip and transform the generated java files to something that will build on android using ksoap2-android library. Very hackish, and needs tons of manual labor to run. Unfortunately. If you find a better way, or one comes up, please provide a new answer.

I use Apache CXF tool just to create dto, and i wrote a class to perform a basic unmarshalling based on name of elements

A bit late on this, but there is a ksoap2 stub generator under development, and I successfully used it to create the stubs.
http://ksoap2-stub-gen.sourceforge.net/
Also someone made it availabe as an online service (i.e. you give your WSDL's URL and the service will return a zip file containing the stubs).
http://www.davidgouveia.net/2011/04/online-stub-generator-for-android-applications-using-ksoap2/

I have used for iPhone too some auto-generated classes I wanted to see here too.
wsdl2code is one of the similar what I have used at iPhone. Give an url with wsdl file you will get some classes to download. For me the hardest part it was to download the required parts. It took more than 2 minutes of searching :) ksoap2-android-assembly-3.0.0-jar-with-dependencies.jar needed to download ad drag-and-drop to ADT ( Eclipse) . It is super easy, especially if you have used the counterpart at iPhone. - a similar tool I have used.
However in my case I am not happy at all with the solution, because I see I am using cannon, a set of cannons to shot a sparrow. In my case it should be used a HTTP Post and not including dependencies from other libraries.
To be honest I don't care to much, because once the server side believe we have unlimited battery power and unlimited data plan, than I close my eyes and I don't care about marshaling-unmarshaling overheads, which use the CPU ( battery ) increase the data transmitted over network.
In worse case it should be a JSON + HTTP POST not SOAP for mobiles...
I would suggest to talk at server side guys and explain for they why it will not good if they do 2 click on wizards and we do other click on forms to get the generated code. At least while the application is not a huge one, even than should be budget to optimise for mobile a few interfaces implementations.

Android - Obtaining data from a website

I'm finding my way around Android and so far so good. My next big challenge is coming to grips with web services. I would like to build an app that reads data from a web site or database on web server and store the data in my app.
Basically, it will be an app that I build in conjunction with a news website that pulls their latest articles into the app. What I'm finding difficult is how to bridge the gap between my application and the data in the SQL Server database.
I'm familiar with building asp websites that read data from a database, but how would I do something similar with an app?
Do I ask the website to store the articles in an xml format? Or, is there another way that I can request a specific article and be provided with the content?
I hope I'm phrasing the question correctly and that someone can just guide me to the right way to approach this.
Thanks in advance.

You can approach this problem from different perspectives.
The common solution is to build a Webservice that will bridge the gap between your mobile application and the data that remain in your server. I personnaly prefer to setup a Rails backend and thus have a RESTful API that will help me access my data. For instance, to retrieve the list of articles I could just request the following url: http://my_server_host/articles. So for the Webservice part you can have whatever you want: Rails, J2EE, .NET etc. And you can choose the model that fits your needs (REST, SOAP, XML-RPC etc.).
Then you will have to write a class that will contain all the necessary calls to the Webservice you have built. Basically, if your Webservice returns the results as an XML format you will have to:
Send the request to the appropriate URL. (See: HttpGet or HttpPost if you want to modify a resource).
Parse the XML returned. (In short, you can use SAX or DOM to parse your XML response and transform them to a business entity (an Article, a User etc.).)
This hopefully gives you a hint about a possible solution. By the way Google is your friend, but I will probably come back to add external links/resources to help you more.
Edit
Another possible solution that could work for you, since all you need is to retrieve some articles. Just setup a simple Wordpress blog for instance. Wordpress gives you an URL for the blog's RSS feed, all you will have to do is to parse that RSS feed (XML). There is a great article on the IBM website for parsing an RSS feed that you can find here. By the way, this solution is only possible if you want to save your articles on a Wordpress blog. But you got the point hopefully.

Reading your data form the Database on the Server would be bad practice. You'd have to open up some ports and that's defiantly not what you want (if you don't have root-access, you also can't).
For non-interactive content (what you want) you would use XML or JSON.

Communication model: C++ and Java

Pals,
I have a requirement to establish a communication channel between C++ and Java layer of my application for the exchange of objects and their properties.
I have got the following options:
XML / SOAP
Postgre SQL
Can you please advice me the Pros & Cons on these. Please share your experiences on the implementation complexities.
Thanks,
Gtk

If the option is between those I would choose XML
Object <=> XML
Java side Simple, C++ side XML Objects
Reason, its simpler for what you want, i.e. pass language objects and not Data Base
Ah, could you specify the communication channel between the apps ?
UPDATE
If you can use JSON I would recommend it instead of XML, here is why.

Another option would be JMS. There are C++ clients out there.

Every time I see XML I think RESTful web service. Both platforms you mentioned have some form of tooling to marshal & unmarshal XML. There are plenty of working examples out in the wild, so a Google/Bing search is good. A nice side-effect is once you have those interfaces built, anything can connect to them.
If you really want to bother with generating a WSDL, then feel free to go the SOAP route. However, speaking with several years of web service integration experience, RESTful is so gosh darned simple compared to anything else.

I would like to suggest a third option : YAML
You have parsing library in YAML for both java and C++. In my experience, it's easier to debug exchange in YAML that in XML (especially if you got full text field or cyclic data structure).

I depends of the kind of message you transfer.
If your message are individual entity that have a short live, I would go for XML, YAML or something similar.
If your message contains information that is going to be used later on and refer to information in previous messages, I would use a database.

Get report from JasperServer using SOAP

Can someone provide me a working example which gets reports from jasperserver using it's SOAP API.
Actually I know how to run it to a file.... but I need to get report data directly.
Thanks in advance!

I've tried a lot of ways of doing the above thing, and what I've came up with is to get report from JasperServer in JasperPrint format and then export it in whatever you need. Another way of solving that problem is to get report via HTTP API.

You can check out http://www.codeproject.com/KB/ajax/JavaScriptSOAPClient.aspx
But I had the same issue of having to go to jasperserver direct. If you're doing this on a PHP server they have quite a bit of PHP demo code that does the SOAP call for you. I used that and found it far easier to implement than doing it with JavaScript. The above link though should help you with making the SOAP call.
I found Jaspers SOAP documentation lacking so having the PHP source code that did a working example was quite helpful.

How to extract data from a SOAP response in Java?

I have a client set up to send a request to the National Weather Service SOAP server. I am receiving the response that I expect, but I am unsure as to the best way to extract the data from it that I need.
For example, there is a lot of extra data in the XML (in the SOAPBody), but I only want to grab the data for the parameters that I set (such as temperature) to my POJO.
What's the best way to extract this data?

I started out trying to consume SOAP Web Services by hand like you describe - there are better ways.
There are libraries out there that will do all the work for you - no need to parse anything by hand.
Check out JAX-WS. Most Modern IDEs (Certainly Netbeans and Eclipse) also provide point and click support for building web service clients given a WSDL.
The biggest potential problem down this route is if there's no WSDL, or the WSDL is wrong, in which case the tooling I've linked might struggle.
The next safest thing would be to use an XML Parser like JAXP's SAX & DOM etc (they're right there in your JRE) to parse the response and then walk the data structures involved.
Finally you could go the string hacking route using splits or regexes but down that path lies a great deal of potential pain - there's more to the XML spec then nested tags.

It's strongly receommended that you not try and decode SOAP by hand :)
Just to expand on what #Brabster said,
Netbeans has extensive Web Service support, especially using the JAX-WS library.
http://www.netbeans.org/kb/60/websvc/jax-ws.html#Exercise_3_1