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Apache CXF example source code file (HelloWorldServlet.java)

This example Apache CXF source code file (HelloWorldServlet.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Apache CXF tags/keywords

form, http, input, input, name, naming, network, operation, qname, request, resourceexception, response, servlet, string, string, tr, tr, user, value, value

The Apache CXF HelloWorldServlet.java source code

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package demo.servlet;

import java.io.PrintWriter;
import java.net.URL;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.resource.ResourceException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.namespace.QName;

import org.apache.cxf.connector.CXFConnectionFactory;
import org.apache.cxf.connector.Connection;
import org.apache.cxf.jca.cxf.CXFConnectionRequestInfo;
import org.apache.hello_world_soap_http.Greeter;

public class HelloWorldServlet extends DemoServletBase {

    private static final String EIS_JNDI_NAME = "java:comp/env/eis/CXFConnector";

    private String operationName; 
    private String userName; 

    public HelloWorldServlet() {
        super("J2EE Connector Hello World Demo");
    }


    public void doGet(HttpServletRequest req, HttpServletResponse resp) {
        try { 
            operationName = req.getParameter("Operation"); 
            userName = req.getParameter("User"); 
            super.doGet(req, resp);
        } finally { 
            operationName = null; 
        } 
    }


    public void doPost(HttpServletRequest req, HttpServletResponse resp) {
        doGet(req, resp);
    }

    /** 
     * get a connection to the SOAP service
     */ 
    protected Connection getServiceConnection() throws NamingException, ResourceException {

        Context ctx = new InitialContext();

        // retrieve the connection factory from JNDI 
        //
        CXFConnectionFactory factory = (CXFConnectionFactory)ctx.lookup(EIS_JNDI_NAME);
            
        URL wsdlLocation = getClass().getResource("/wsdl/hello_world.wsdl");

        QName serviceName = 
            new QName("http://apache.org/hello_world_soap_http", "SOAPService");
        QName portName = new QName("http://apache.org/hello_world_soap_http", "SoapPort");


        // create the connection 
        //
        CXFConnectionRequestInfo requestInfo = new CXFConnectionRequestInfo(Greeter.class, 
                                                                            wsdlLocation, 
                                                                            serviceName, 
                                                                            portName);
        return (Connection)factory.getConnection(requestInfo);
    }



    protected void writeMainBody(PrintWriter writer) {
        operationForm(writer);
        writer.println("  " + getResponseFromWebService());
    }


    protected void operationForm(PrintWriter writer) {

        writer.println("<TABLE ALIGN=\"center\">");
        writer.println("<FORM ACTION=\"./*.do\" METHOD=GET>");
        writer.println("<TR>
Operation:
"); writer.println("<TR>
"); writer.println("<INPUT TYPE=RADIO NAME=\"Operation\" VALUE=\"sayHi\"" + ("sayHi".equals(operationName) ? " CHECKED " : "") + "> sayHi<BR>"); writer.println("<TR>"); writer.println("<INPUT TYPE=RADIO NAME=\"Operation\" VALUE=\"greetMe\"" + ("greetMe".equals(operationName) ? " CHECKED " : "") + "> greetMe "); writer.println("<INPUT TYPE=TEXT NAME=\"User\" VALUE=\"" + ("greetMe".equals(operationName) ? userName : "") + "\" SIZE=20><BR>"); writer.println("<TR>"); writer.println("<INPUT TYPE=SUBMIT VALUE=\"Submit\">

"); writer.println("</FORM>"); writer.println("</TABLE>"); } String getResponseFromWebService() { Greeter greeter = null; String responseFromWebService = "No message sent"; try { greeter = (Greeter)getServiceConnection(); if (operationName != null) { if ("sayHi".equals(operationName)) { responseFromWebService = greeter.sayHi(); } else if ("greetMe".equals(operationName)) { responseFromWebService = greeter.greetMe(userName); } } } catch (Exception e) { e.printStackTrace(); if (e.getCause() != null) { e.getCause().printStackTrace(); } responseFromWebService = e.toString(); } finally { try { if (greeter != null) { ((Connection)greeter).close(); } } catch (ResourceException e) { // report error from close } } return responseFromWebService; } }

Other Apache CXF examples (source code examples)

Here is a short list of links related to this Apache CXF HelloWorldServlet.java source code file:

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