Arun Gupta, Miles to go ...

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Screencast #WS2: Invoking a Web service using NetBeans IDE - not running throws error

Posted by Prashant on September 05, 2007 at 09:59 PM PDT #

Your screen cast are simple easy to understand, wonderful.
Will you please consider explaining in more detail how to return complex type dataset from webservice in netbeans invironment. it would be of great help for many netbeans user. I have not found solution to this problem in any blog.

thanking you

raj

Posted by Raj Gautam on December 29, 2007 at 03:06 PM PST #

You cast gave me a clear picture and concept on how web service work and apply in Netbeans in a minute.

I am now exploring how to return complex types, e.g. Vector, ArrayList from Web Services which could be understand by ASP .NET. Noted you mentioned do it using Java Bean, would you elaborate the details or giving URLs about that.

Thank you for your great help.

Brian

Posted by Brian Kwan on July 09, 2008 at 04:27 AM PDT #

Hello Arun,

Thank you for the wonderful tutorial. To consume a web service we create a web client from WSDL and consume it. Let's say I have two web services ws1 and ws2 and if I want to invoke ws2 in ws1 do I need to create a web service client in ws1 using ws2 WSDL?

Thanks,
nimdhar

Posted by 144.226.173.68 on October 21, 2008 at 11:53 AM PDT #

Hi Arun

Currently I'm working with an application where I'm trying to access WCF services(.net plateform) by java. I've configure with Eclipse IDE and with web services explorer when I'm passing WSDL URL it is fatching all running services and built in methods. The issue is I'm able to access and get return by those methods which are using primitive data types like String, Integer etc. But not able to access arraylist Dictionary and Hashtable. Can you suggest me, is java support .net compatibility with these collection types? If yes how I can achive this. Please suggest I'll be great thankful to you.

Posted by chandra prakash on November 20, 2008 at 01:25 AM PST #

I'll post a list of screen casts that are planned for the next few weeks. I'll add the tutorial to use bundled derby database to the bottom of that list. It might get done sooner :)

Posted by laptop batteries on November 26, 2008 at 08:36 PM PST #

Troy, can you post your question to nbusers@netbeans.org or (http://www.netbeans.org/community/lists/top.html#top).

Posted by Arun Gupta on April 06, 2009 at 10:54 AM PDT #

Hi Arun,

I actually do development in C# .net. Lately I had a need to test if I can call a .Net webservice from Java app or JSP page. Your screencast ws2 has been very useful for me and I was able to create reference of my .Net webservice in a simple Java app in Netbeen 5.5.1 where I can see all the methods that exposed by the .net webservice. However I run the Java app the result was not what I expected and I appreciate if you can help.
Basically, the .net webservice exposes a method GetDeviveDataString(string, string, string) that access sql server and returns a string representation of the dataset (each record is formatted as CSV string and ended with a new line '\n') and this has been tested with a ASP.net page okay.
The java app (which I followed your webcast) when examined has the following line
Client.TestX0020ServiceResponse result = port.getDeviceDataStringTest(parameters);
I tried to replace the 'parameters' with appropriate string values then the app would compile with error!
Now I then have another method exposed by the same webservice which does not require any parameter and return a string "Hello world". With this simple method, when called from the java app only return the actual name of the method itself :

Result = Client.TestX0020ServiceResponse@1d0fafc

I have 2 questions
1) How do I pass parameters to a parameterised .net webservice method in Netbeans 5.5.1

2) How do I retrieve the correct output of .net service method instead of its name in java app created in Netbean 5.5.1

As I am new and not quite familiar with Java world, your help is greatly appreciated.

Thanks in advance

Posted by victor lu on June 14, 2009 at 11:27 PM PDT #

Arun,
By the way I had these issues resolved.
It turned out that it was the way Netbeans generated the code from WSDL file which I assumed to give me the expected results but clearly it did not! Nonetheless I start to like using netbeans. Very nice IDE indeed. ;-).
Adding required parameters to the WS method, one needs to do the following:

//This was generated by netbeans
testwsfromdotnet.GetX0020DeviceX0020DataX0020AsX0020ByteX0020ArrayResponse rawResult = port.getDeviceDataByteArray(params);

//This need to be added as required
parameters.setDeviceDsn("3811080007");
parameters.setStartDate("2009-05-04 07:02:16");
parameters.setEndDate("2009-05-04 12:17:33");

After that, the result that was generated by Netbean needed to processed further :

//This was generated by netbeans
testwsfromdotnet.GetX0020CompressedX0020DeviceX0020DataX0020AsX0020AX0020ByteX0020ArrayX0020Response compressResult = port.getCompressedDeviceDataByteArray(parameters);

//This MUST be added to get the expected result
byte[] compressedData = compressResult.getGetX0020CompressedX0020DeviceX0020DataX0020AsX0020AX0020ByteX0020ArrayX0020Result();

So at the end, I have learned a great deal of interoperate between Java app/JSP and .Net Webservice.

Thanks for the webcasts. Cheers

Posted by victor lu on June 17, 2009 at 12:44 AM PDT #

Sai,

A JPA Persistence Unit can be easily created as described at:

http://blogs.sun.com/arungupta/entry/restful_representation_of_sakila_using

Then you can use the generated POJO classes and JPQL to query the database from your Web service class.

Feel free to follow up on users@metro.dev.java.net.

Posted by Arun Gupta on July 02, 2009 at 10:25 AM PDT #

Dipak,

Following up with your comment at:

http://blog.arungupta.me/2009/09/gmail-down-502-server-error/comment-page-1/#comment-8758

Posted by Arun Gupta on September 02, 2009 at 05:28 AM PDT #