Java web service seemingly not storing variable?

Question

EDIT: The problem was two-fold, first dictionary should be static and also i was using .contains() where i should have used .containsKey()

I'm trying to do a simple java client and server set up, this is what i have got and i can't seem to find anything wrong with the way i have done it but whenever i run the code i get the output:

Result = Added

Result = This word is not in the dictionary, please use the add function.

Which tells me that the server isn't storing the change made the the map when i am adding a word, is there something really simple i am missing here?

I can add anymore information needed if asked.

This is my client code:

public class Client {
 @WebServiceRef(wsdlLocation = 
        "http://localhost:8080/P1Server/ServerService?wsdl")

public static void main(String[] args) { 
try { 
    package1.ServerService service = new package1.ServerService(); 
    package1.Server port = service.getServerPort(); 

    String result = port.addWord("Test", "This is a test."); 
    System.out.println("Result = " + result); 

    result = port.getDefiniton("Test");
    System.out.println("Result = " + result); 
}catch(Exception ex)
{ 
    System.out.println("Gone Wrong"); 
}

This is my relevant server code:

@WebService
public class Server {

private **static**ConcurrentHashMap<String,String> dictionary;    

public Server() {
    this.dictionary = new ConcurrentHashMap<>();
}

@WebMethod
public String addWord(String word, String definition){
    if(dictionary.contains(word.toLowerCase())){
        return "This word is already in the dictionary, "
                + "please use the update function.";
    }else{
        dictionary.put(word.toLowerCase(), definition);
        return "Added";
    }
}
@WebMethod
public String getDefiniton(String word){
    if(dictionary.contains(word.toLowerCase())){
        return dictionary.get(word);

    }else{
        return "This word is not in the dictionary, "
                + "please use the add function.";
    }
}

Answer 1

Your problem has noting to with webservice. Issue is with you logic

Modify your methods as follows :

public String addWord(String word, String definition) {
        if (dictionary.containsKey(word.toLowerCase())) {
            return "This word is already in the dictionary, "
                    + "please use the update function.";
        } else {
            dictionary.put(word.toLowerCase(), definition);
            return "Added";
        }
    }

    public String getDefiniton(String word) {
        if (dictionary.containsKey(word.toLowerCase())) {
            return dictionary.get(word.toLowerCase());

        } else {
            return "This word is not in the dictionary, "
                    + "please use the add function.";
        }
    }

It will work. Hope this helps.