Apache CXF with JMS Example

w‮i.ww‬giftidea.com

Apache CXF is a popular Java web services framework that supports a variety of protocols, including Java Message Service (JMS). Here's an example of how to use Apache CXF with JMS:

  1. First, you need to set up a JMS broker. Apache ActiveMQ is a popular open-source JMS broker that you can use for testing purposes. You can download it from the Apache ActiveMQ website.

  2. Create a new Maven project and add the following dependencies to your project's pom.xml file:

<dependency>
    <groupId>org.apache.cxf</groupId>
    <artifactId>cxf-rt-transports-jms</artifactId>
    <version>${cxf.version}</version>
</dependency>
<dependency>
    <groupId>org.apache.activemq</groupId>
    <artifactId>activemq-all</artifactId>
    <version>${activemq.version}</version>
</dependency>

Replace ${cxf.version} and ${activemq.version} with the latest versions of CXF and ActiveMQ, respectively.

  1. Create a new interface for your JMS service, for example:
@WebService
@SOAPBinding(style = Style.RPC)
public interface MyService {
    @WebMethod
    void sendMessage(String message);
}
  1. Create a new implementation class for your JMS service, for example:
@WebService(endpointInterface = "com.example.MyService")
public class MyServiceImpl implements MyService {
    @Override
    public void sendMessage(String message) {
        // TODO: Send JMS message
    }
}
  1. Configure CXF to use JMS by adding the following to your application context file (e.g. applicationContext.xml):
<jaxws:endpoint id="myService"
                implementor="com.example.MyServiceImpl"
                address="/myService">
    <jaxws:properties>
        <entry key="org.apache.cxf.transport.jms.JMSConfigFeature.enabled" value="true"/>
        <entry key="org.apache.cxf.transport.jms.JMSConfigFeature.connectionFactory" value="ConnectionFactory"/>
        <entry key="org.apache.cxf.transport.jms.JMSConfigFeature.targetDestination" value="queue:myQueue"/>
    </jaxws:properties>
</jaxws:endpoint>

This configuration enables CXF's JMSConfigFeature, which allows you to specify the JMS connection factory and destination for your service. In this example, we're using a JMS queue named "myQueue".

  1. In your implementation class, you can use CXF's JMS Transport API to send JMS messages:
import org.apache.cxf.transport.jms.JMSMessageHeadersType;
import org.apache.cxf.transport.jms.JMSConstants;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;
import javax.xml.ws.WebServiceContext;
import javax.xml.ws.handler.MessageContext;

@WebService(endpointInterface = "com.example.MyService")
public class MyServiceImpl implements MyService {

    @Resource
    private WebServiceContext context;

    @Override
    public void sendMessage(String message) {
        MessageContext messageContext = context.getMessageContext();
        JMSMessageHeadersType headers = new JMSMessageHeadersType();
        headers.setJMSCorrelationID("correlationId");
        headers.setJMSDeliveryMode(2);
        headers.setJMSPriority(5);
        headers.setTimeToLive(10000);
        headers.setProperty("MyCustomProperty", "MyCustomValue");
        messageContext.put(JMSConstants.JMS_CLIENT_REQUEST_HEADERS, headers);

        ConnectionFactory cf = (ConnectionFactory) messageContext.get(JMSConstants.JMS_CONNECTION