Homework - Simple Java Web Service - help

This is the task:

Create a translation service.

Customer service to activate the service method as follows:

getWord ("car", "russian", "polish")


The first parameter is the required word, the second is the original language, and the third target language.

The method should return a string with the appropriate word or words separated by commas if there are synonyms.

Data source, the service should use XML documents (the system may have only a few words, in order to test the functionality).


I started by creating an XML file and establishing a connection between Java and XML:

import java.io.IOException;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;


public class Main {


public static void main(String[] args) throws
ParserConfigurationException, SAXException, IOException{
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
sp.parse ("Servis.xml", new MySaxHandler());
}
}

I have no idea what to do next. Please help.

I'm not sure what you're trying to do - a SOAP web service or what? Is this just a command line program or a web based program? Let us know some more details and we'll try to help.

I need to create a Java web service . I can use SOAP or JAX-WS. I am using NetBeans and GlassFish server but this field is new for me so I do not even know where to start.

Refer to Java EE tutorial for getting started with creating a web service.

I'd take a look at this link to get started.

A tiny bit of code to get you going:



All this does is define the "TranslationService". And in my case it simply adds the string of the originalLanguage to the end - just something to show that it's different.

If you deploy this to glassfish you'll be able to see that the web service exists by going to something like http://localhost:8080/yourwebapp/TranslationService?WSDL. In this case "yourwebapp" is the name of your web application.

The client side is a bit more involved. Basically you'll want to use the Java command "wsimport". This is in the bin directory of your JDK. In a directory, and assuming that your service is deployed to http://localhost:8080/yourwebapp/TranslationService?wsdl you would run something like:



This will generate several files in src/com/yourpackagename/soap. You do not need to understand each of these files. But your two most important ones will be src/com/yourpackagename/soap/TranslationService.java and src/com/yourpackagename/soap/Translator.java (assuming that you use my code above). From there you can access the "service" and "port" (the port will contain a mirror of the method you want.

That's alot of stuff. Give it a shot and let us know where it breaks.