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Now we need to add a business method and mark the interface as a remote one with @Remote annotation.
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package sampleear;
import javax.ejb.Remote;
@Remote
public interface RemoteBusinessInterface {
public String sayHello(String name);
}
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Implement the business method sayHello and mark the class as a stateless session bean with the @Stateless annotation.
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package sampleear;
import javax.ejb.Stateless;
@Stateless
public class MyStatelessSessionBean implements RemoteBusinessInterface {
public String sayHello(String name) {
return getClass().getName() + " says hello to " + name + ".";
}
}
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- Right click on the SampleWAR project and select New -> JSP. Name it
index.jspand click Finish. - Change it so it executes the servlet upon form submission.
Section Code Block html html borderStyle solid title index.jsphtml <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>5-minute Tutorial on Enterprise Application Development with Eclipse and Geronimo</title> </head> <body> <form action="${pageContext.request.contextPath}/sayHello"> <input type="text" name="name" /><input type="submit" value="Press me!" /> </form> </body> </html>
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MyServlet.java opens up automatically for editing after creation, update the servlet as shown below to call off the ejb when executed.
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package sampleear;
import java.io.IOException;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class MyServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
static final long serialVersionUID = 1L;
@EJB
RemoteBusinessInterface remoteBusinessIntf;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String name = request.getParameter("name");
if (name == null || name.length() == 0) {
name = "anonymous";
}
response.getWriter().write(remoteBusinessIntf.sayHello(name));
}
}
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