Java jersey rest web服务与Activemq中间件集成

我有一个用JAX-RS和jersey开发的Restful服务API。我已经在Tomcat7中部署了相同的功能。现在我想实现Activemq，以便将所有请求保留在队列中并处理请求资源。如何做到这一点并与tomcat7集成。如何将ActiveMq与Tomcat7或我的rest服务webapp集成。如何呼叫服务

重要事项：- 在RESTAPI内部，出于安全考虑，我使用FilterChaining概念，在验证调用方之后，我只是将请求转发给资源。为此，我在web.xml中添加了

谢谢

这是我的班级：-

    public class LimitFilter implements Filter {

        public void doFilter(ServletRequest request, ServletResponse response,
                FilterChain chain) throws IOException, ServletException {

//some authentication
                if (true) {
                    // let the request through and process as usual
                    chain.doFilter(request, response);

                } else {
                    // handle limit case, e.g. return status code 429 (Too Many
                    // Requests)
                    // see http://tools.ietf.org/html/rfc6585#page-3
                    ((HttpServletResponse) response).sendError(429);
                }
            } 
            }
        }

public class Qservlet extends HttpServlet {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws IOException, ServletException {
            String body = "";
        try {
            // Create a ConnectionFactory

            ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "admin", ActiveMQConnection.DEFAULT_BROKER_URL);

            // Create a Connection

            Connection connection = connectionFactory.createConnection();


            Session session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);

            Destination destination = session.createQueue("testQ"); 
            TextMessage message = session.createTextMessage();
            message.setText( "My text message was send and received");//
            message.setJMSRedelivered(true);
            message.setJMSCorrelationID(request.getSession().getId());

            connection.start();

            MessageProducer producer = session.createProducer(destination);
            producer.setDeliveryMode(DeliveryMode.PERSISTENT);
            producer.send(message);

            message = null;
            MessageConsumer consumer = session.createConsumer(destination);
            message = (TextMessage) consumer.receive(1000);
            if (message != null) {
                body = message.getText();
            }


            producer.close();
            consumer.close();
            session.close();
            connection.close();

        } catch (Exception e) {
            System.out.println(e.toString());
        }

    }

}

这是我的activemq示例类：-

    public class LimitFilter implements Filter {

        public void doFilter(ServletRequest request, ServletResponse response,
                FilterChain chain) throws IOException, ServletException {

//some authentication
                if (true) {
                    // let the request through and process as usual
                    chain.doFilter(request, response);

                } else {
                    // handle limit case, e.g. return status code 429 (Too Many
                    // Requests)
                    // see http://tools.ietf.org/html/rfc6585#page-3
                    ((HttpServletResponse) response).sendError(429);
                }
            } 
            }
        }

public class Qservlet extends HttpServlet {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws IOException, ServletException {
            String body = "";
        try {
            // Create a ConnectionFactory

            ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "admin", ActiveMQConnection.DEFAULT_BROKER_URL);

            // Create a Connection

            Connection connection = connectionFactory.createConnection();


            Session session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);

            Destination destination = session.createQueue("testQ"); 
            TextMessage message = session.createTextMessage();
            message.setText( "My text message was send and received");//
            message.setJMSRedelivered(true);
            message.setJMSCorrelationID(request.getSession().getId());

            connection.start();

            MessageProducer producer = session.createProducer(destination);
            producer.setDeliveryMode(DeliveryMode.PERSISTENT);
            producer.send(message);

            message = null;
            MessageConsumer consumer = session.createConsumer(destination);
            message = (TextMessage) consumer.receive(1000);
            if (message != null) {
                body = message.getText();
            }


            producer.close();
            consumer.close();
            session.close();
            connection.close();

        } catch (Exception e) {
            System.out.println(e.toString());
        }

    }

}

现在，如果有任何请求来自LimitFilter类，我将在一些身份验证mecanisam之后直接转发到资源。这就是为什么我使用过滤器概念来捕获所有请求

第二节课是我跑步时的示范课；消息传递是排队和退队；我可以在ActiveMq的控制台中看到

在第一个类中，我只需编写“chain.doFilter（request，response）”将所有http请求转发到相应的资源。现在在这里怎么办。将HTTP请求放在何处。我需要异步处理每个请求。REST是同步的

请提出一些建议。并解释你的答案

谢谢/问候

---

Kumar Shorav

您看过Apache ActiveMQ上的REST文档了吗：

另外，您是在谈论将ActiveMQ作为代理嵌入Tomcat中，还是在单独的box/jvm中运行ActiveMQ代理

---

由于独立ActiveMQ具有现成的REST API，如上面的链接所述。

由于缺少凭据，您在点击REST URL时看到ActiveMQ管理控制台的原因是，请使用基本身份验证传递凭据。我编写了一个groovy客户端来调用RESTURL。你可以用类似的

import groovyx.net.http.HTTPBuilder;
import groovyx.net.http.Method;
import groovyx.net.http.ContentType;
import groovyx.net.http.RESTClient;
import groovyx.net.http.HttpResponseDecorator;
import groovy.json.JsonSlurper;

def headers= ["Authorization": 'Basic'   +'admin:admin'.bytes.encodeBase64().toString()];
println headers;
def restClient = new RESTClient('http://servername:8161');
def restClientResponse = restClient.get(path: '/api/message/queueName?type=queue',headers:headers,requestContentType: ContentType.JSON)
println restClientResponse.status;
println restClientResponse.headers['Content-Length'];
println restClientResponse.getData();

---

我已经看过这些文件了。然而，我无法从这一点开始。你有什么小例子吗？请告诉我。谢谢你的回答。我不知道，但我需要将所有传入的Http请求放入队列，然后转发到服务。请发表评论。这个问题出了什么问题？您是否对HttpServletRequest中的自定义对象感兴趣，或者您需要它，因为您想稍后将信息中继回客户端？@Phani是的，在Httpservlet请求中。