Easy remoting with Spring HttpInvoker

If you're looking for a simple solution to expose/access services using Java, maybe you should consider using SpringHttpInvoker. Here's a quick recipe of how to use it (extracted from Spring docs). Let's start with the domain class:

public class Account implements Serializable{
    private String name;
    public String getName(){
      return this.name;
    }
    public void setName(String name) {
      this.name = name;
    }
}

The service interface:

public interface AccountService {
    public void insertAccount(Account account);
    public List getAccounts(String name);
}

And some implementation of the service:

// the implementation doing nothing at the moment
public class AccountServiceImpl implements AccountService {
    public void insertAccount(Account acc) {
        // do something...
    }
    public List getAccounts(String name) {
        // do something...
    }
}

In order to expose this service you'll need a ServletDispatcher configured inside your web.xml like the following:

remoting
    
    org.springframework.web.servlet.DispatcherServlet
    1



    remoting
    /remoting/*

And then it's just a matter of exposing your service in the WEB-INF/remoting-servlet.xml file:

And that's all you need! To access it on the client application, you just need to declare the remote service:

After this point your client application can use your service transparently via the accountService proxy. As simple as it should be!