Java/Web Services SOA/Code First

This demo illustrates how to develop a service use the "code first" approach using the JAX-WS APIs

   <source lang="java">

Hello World Demo using Document/Literal Style

=================================

This demo illustrates how to develop a service use the "code first" approach using the JAX-WS APIs. Prerequisite

---

If your environment already includes cxf-manifest-incubator.jar on the CLASSPATH, and the JDK and ant bin directories on the PATH it is not necessary to set the environment as described in the samples directory README. If your environment is not properly configured, or if you are planning on using wsdl2java, javac, and java to build and run the demos, you must set the environment.

Building and running the demo using ant

---

From the samples/hello_world directory, the ant build script can be used to build and run the demo. Using either UNIX or Windows:

 ant build
 ant server
 ant client
   

To remove the code generated from the WSDL file and the .class files, run:

 ant clean

Building the demo using wsdl2java and javac

---

From the samples/hello_world directory, first create the target directory build/classes and then generate code from the WSDL file. For UNIX:

 mkdir -p build/classes
 wsdl2java -d build/classes -compile ./wsdl/hello_world.wsdl

For Windows:

 mkdir build\classes
   Must use back slashes.
 wsdl2java -d build\classes -compile .\wsdl\hello_world.wsdl
   May use either forward or back slashes.

Now compile the provided client and server applications with the commands: For UNIX:

 export CLASSPATH=$CLASSPATH:$CXF_HOME/lib/cxf-manifest-incubator.jar:./build/classes
 javac -d build/classes src/demo/hw/client/*.java
 javac -d build/classes src/demo/hw/server/*.java

For Windows:

 set classpath=%classpath%;%CXF_HOME%\lib\cxf-manifest-incubator.jar;.\build\classes
 javac -d build\classes src\demo\hw\client\*.java
 javac -d build\classes src\demo\hw\server\*.java

Running the demo using java

---

From the samples/hello_world directory run the commands, entered on a single command line: For UNIX (must use forward slashes):

   java -Djava.util.logging.config.file=$CXF_HOME/etc/logging.properties
        demo.hw.server.Server &
   java -Djava.util.logging.config.file=$CXF_HOME/etc/logging.properties
        demo.hw.client.Client ./wsdl/hello_world.wsdl

The server process starts in the background. After running the client, use the kill command to terminate the server process. For Windows (may use either forward or back slashes):

 start 
   java -Djava.util.logging.config.file=%CXF_HOME%\etc\logging.properties
        demo.hw.server.Server
   java -Djava.util.logging.config.file=%CXF_HOME%\etc\logging.properties
      demo.hw.client.Client .\wsdl\hello_world.wsdl

A new command windows opens for the server process. After running the client, terminate the server process by issuing Ctrl-C in its command window. To remove the code generated from the WSDL file and the .class files, either delete the build directory and its contents or run:

 ant clean

Building and running the demo in a servlet container

---

From the samples/hello_world directory, the ant build script can be used to create the war file that is deployed into the servlet container. Build the war file with the command:

 ant war
   

Preparing deploy to APACHE TOMCAT

• set CATALINA_HOME environment to your TOMCAT home directory

Deploy the application into APACHE TOMCAT with the commond: [NOTE] This step will check if the cxf jars present in Tomcat,

      if not, it will automatically copy all the jars into CATALINA_HOME/shared/lib
 
 ant deploy -Dtomcat=true

The servlet container will extract the war and deploy the application.

Using ant, run the client application with the command:

 ant client-servlet -Dbase.url=http://localhost:#

Where # is the TCP/IP port used by the servlet container, e.g., 8080. Or

 ant client-servlet -Dhost=localhost -Dport=8080

You can ignore the -Dhost and -Dport if your tomcat setup is same, i.e ant client-servlet Using java, run the client application with the command:

 For UNIX:
   
   java -Djava.util.logging.config.file=$CXF_HOME/etc/logging.properties
        demo.hw.client.Client http://localhost:#/helloworld/services/hello_world?wsdl
 For Windows:
   java -Djava.util.logging.config.file=%CXF_HOME%\etc\logging.properties
      demo.hw.client.Client http://localhost:#/helloworld/services/hello_world?wsdl

Where # is the TCP/IP port used by the servlet container, e.g., 8080. Undeploy the application from the APACHE TOMCAT with the command:

  ant undeploy -Dtomcat=true

Running demo with HTTP GET

---

APACHE CXF support HTTP GET to invoke the service, instead of running

  ant client

you can use

  ant client.get 

to invoke the service with simple HttpURLConnection, or you can even use your favoriate browser to get the results back.

//////////////////////////////////////////////////////////////////////// <?xml version="1.0" encoding="UTF-8"?>

<project name="hello world code first demo" default="build" basedir=".">

   <import file="common_build.xml"/>        
       
   <target name="client" description="run demo client" depends="build">
       <property name="param" value=""/>
       <cxfrun classname="demo.hw.client.Client"
           param1="" 
           param2="${op}" 
           param3="${param}"/>
   </target> 
       
   <target name="server" description="run demo server" depends="build">
       <cxfrun classname="demo.hw.server.Server"/>
   </target>
 
   <property name="cxf.war.file.name" value="helloworld"/>
   <target name="war" depends="build">
 <cxfwar wsdl="hello_world.wsdl" filename="${cxf.war.file.name}.war"/>
   </target>
   <target name="client-servlet" description="run demo client hitting servlet" depends="build">
       <property name="param" value=""/>
       <cxfrun classname="demo.hw.client.Client" param1="${base.url}/helloworld/services/hello_world?wsdl" param2="${op}" param3="${param}"/>
   </target> 

</project>

//////////////////////////////////////////////////////////////////////// /**

* 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.hw.client; import javax.xml.namespace.QName; import javax.xml.ws.Service; import javax.xml.ws.soap.SOAPBinding; import demo.hw.server.HelloWorld; public final class Client {

   private static final QName SERVICE_NAME 
       = new QName("http://server.hw.demo/", "HelloWorld");
   private static final QName PORT_NAME 
       = new QName("http://server.hw.demo/", "HelloWorldPort");

   private Client() {
   } 
   public static void main(String args[]) throws Exception {
       Service service = Service.create(SERVICE_NAME);
       // Endpoint Address
       String endpointAddress = "http://localhost:9000/helloWorld";
       // Add a port to the Service
       service.addPort(PORT_NAME, SOAPBinding.SOAP11HTTP_BINDING, endpointAddress);
       
       HelloWorld hw = service.getPort(HelloWorld.class);
       System.out.println(hw.sayHi("World"));
   }

} //////////////////////////////////////////////////////////////////////// /**

* 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.
*/

// START SNIPPET: service package demo.hw.server; import javax.jws.WebService; @WebService public interface HelloWorld {

   String sayHi(String text);

} // END SNIPPET: service

//////////////////////////////////////////////////////////////////////// /**

* 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.
*/

// START SNIPPET: service package demo.hw.server; import javax.jws.WebService; @WebService(endpointInterface = "demo.hw.server.HelloWorld",

           serviceName = "HelloWorld")

public class HelloWorldImpl implements HelloWorld {

   public String sayHi(String text) {
       return "Hello " + text;
   }

} // END SNIPPET: service

//////////////////////////////////////////////////////////////////////// /**

* 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.hw.server; import javax.xml.ws.Endpoint; public class Server {

   protected Server() throws Exception {
       // START SNIPPET: publish
       System.out.println("Starting Server");
       HelloWorldImpl implementor = new HelloWorldImpl();
       String address = "http://localhost:9000/helloWorld";
       Endpoint.publish(address, implementor);
       // END SNIPPET: publish
   }
   public static void main(String args[]) throws Exception {
       new Server();
       System.out.println("Server ready...");
       Thread.sleep(5 * 60 * 1000);
       System.out.println("Server exiting");
       System.exit(0);
   }

}

       </source>