Creating the Web Service Client Application

Use

You create a Web service client application to consume a Web service. The Web service client application connects to the Web service and consumes it via a Web service proxy.

In this tutorial, you use a Java Web servlet as a client application.

Procedure

In the Java EE perspective, choose the HelloWorldWEB project, and then choose File New Other .
In the list of wizards, choose Web Servlet , and then choose Next .
In the Javapackage field, enter com.sap.tutorial.servlet .
In the Classname field, enter HelloServlet , and then choose Finish .

The system opens the created servlet for editing.

Update the source code as shown in the example below.

The @WebServiceRef annotation declares a reference to the Hello S ervice Web service.

                  package com.sap.tutorial.servlet;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.ws.WebServiceRef;

import com.sap.tutorial.helloworld.HelloRemote;
import com.sap.tutorial.helloworld.HelloService;
/**
 * Servlet implementation class for Servlet: HelloServlet
 *
 */
 public class HelloServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
    
         @WebServiceRef(name = "HelloService")
         HelloService service;
         public HelloServlet() {
                super();
        }       
        
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                // TODO Auto-generated method stub
                response.setContentType("text/html");
                PrintWriter out = response.getWriter();
      out.println("<?xml version=\"1.0\"?>");
      out.println("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">");
      out.println("<html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"en\" xml:lang=\"en\">");
      out.println("<head><title>Hello World Web service</title></head>\n");
      out.println("<body>");
      out.print("<form action=\"");
      out.print("HelloServlet\" ");
      out.println("method=get>");
      String firstname = request.getParameter("firstname");
    String lastname = request.getParameter("lastname");
    HelloRemote emptyHelloBeanPort = service.getHelloBeanPort();
    String name = firstname+" "+lastname;
     if (firstname != null || lastname != null) {
       String result = emptyHelloBeanPort.sayHello(new String(new String(name)));
       out.println("<p><strong>"+result+"</strong></p>");
      } else {
          out.println("<strong>"+"Enter first and last name"+"</strong>");
      }
      out.println("<table style=\"margin: 10px 0px;\" summary=\"Enter names\">");
      out.println("<tr>");
      out.println("<td>First name</td>");
      out.println("<td><input type=text size=20 name=firstname /></td>");
      out.println("</tr>");
      out.println("<tr>");
      out.println("<td>Last name</td>");
      out.println("<td><input type=text size=20 name=lastname /></td>");
      out.println("</tr>");
      out.println("</table>");
      out.println("<input type=submit value=Execute />");
      out.println("</form>");
      out.println("</body>");
      out.println("</html>");
        }
}

Save your changes.

Next Step

Deploying the HelloWorld Web Service Client