Pax-Web Jetty-Bundle发布泽西应用程序

Question

我试图在Apache上部署一个泽西应用程序。我安装了这些包：

    ID|State      |Level|Name
    0|Active     |    0|System Bundle (4.4.1)
    1|Active     |    1|Apache Felix Bundle Repository (2.0.2)
    2|Active     |    1|Apache Felix Gogo Command (0.14.0)
    4|Active     |    1|Apache Felix Gogo Shell (0.10.0)
   10|Active     |    1|Apache Felix Configuration Admin Service (1.2.8)
   11|Active     |    1|Apache Felix EventAdmin (1.2.10)
   35|Active     |    1|Apache Felix Gogo Runtime (0.12.1)
   90|Installed  |    1|Apache Felix Log Service (1.0.0)
   91|Resolved   |    1|OSGi R4 Compendium Bundle (4.0.0)
   92|Installed  |    1|Apache Felix Declarative Services (1.6.0)
   94|Installed  |    1|Apache Felix Web Management Console (3.1.2)
   95|Installed  |    1|Apache Felix iPOJO WebConsole Plugins (1.6.0)
   96|Resolved   |    1|Apache Felix Shell Service (1.4.2)
  119|Installed  |    1|Servlet 2.1 API (1.0.0)
  144|Active     |    1|OSGi JAX-RS Connector (4.1.0.201407081443)
  147|Active     |    1|jersey-all (2.10.1)
  157|Active     |    1|OPS4J Pax Web - Jetty Bundle (4.0.0)
  158|Active     |    1|OPS4J Pax Web - Runtime (4.0.0)
  163|Active     |    1|http://repo1.maven.org/maven2/org/slf4j/slf4j-api/1.7.7/slf4j-api-1.7.7-sources.jar (0.0.0)
  165|Active     |    1|Java Servlet API (3.0.1)
  167|Active     |    1|OPS4J Pax Logging - API (1.8.1)
  170|Active     |    1|Apache Felix Dependency Manager (3.2.0)
  171|Active     |    1|OPS4J Pax Web - Extender - WAR (4.0.0)
  174|Active     |    1|Apache Felix Dependency Manager Runtime (3.2.0)
  177|Active     |    1|ASM (5.0.3)
  178|Active     |    1|ASM commons classes (5.0.3)
  179|Active     |    1|ASM Tree class visitor (5.0.3)
  182|Active     |    1|Apache XBean OSGI Bundle Utilities (3.18.0)
  183|Active     |    1|Apache XBean :: Classpath Resource Finder (3.18.0)
  216|Active     |    1|Auth Test (2.0.0.SNAPSHOT)

最后一个，Auth是我想发布的泽西应用程序。我可以安装并启动这个包。当我启动它时，我会得到这些日志：

g! start 216
Started Activator
org.ops4j.pax.web.pax-web-extender-war[org.ops4j.pax.web.extender.war.internal.WebEventDispatcher] : Sending web event WebEvent [replay=false, type=DEPLOYING, bundle=platform-component-web-rest-service-authentication [216], extenderBundle=org.ops4j.pax.web.pax-web-extender-war [171], cause=null, timestamp=1416226629360, contextPath=/authentication, collisionIds=null, httpService=null, httpContext=null] for bundle platform-component-web-rest-service-authentication
org.ops4j.pax.web.pax-web-extender-war[org.ops4j.pax.web.extender.war.internal.WebEventDispatcher] : org/osgi/service/web/DEPLOYING
org.ops4j.pax.web.pax-web-extender-war[org.ops4j.pax.web.extender.war.internal.parser.WebAppParser] : version found in web.xml - 3.0
org.ops4j.pax.web.pax-web-extender-war[org.ops4j.pax.web.extender.war.internal.parser.WebAppParser] : metadata-complete is: false
org.ops4j.pax.web.pax-web-extender-war[org.ops4j.pax.web.extender.war.internal.parser.WebAppParser] : scanning for ServletContainerInitializers
org.ops4j.pax.web.pax-web-extender-war[org.ops4j.pax.web.extender.war.internal.parser.WebAppParser] : found container initializers by SafeServiceLoader ... skip the old impl. 
org.ops4j.pax.web.pax-web-extender-war[org.ops4j.pax.web.extender.war.internal.Activator] : Scheduling start of extension for bundle platform-component-web-rest-service-authentication asynchronously
org.ops4j.pax.web.pax-web-extender-war[org.ops4j.pax.web.extender.war.internal.WebAppPublisher] : Publishing web application [WebApp{displayName=Authentication Manager,contextName=authentication,m_httpContext=null}]

我想整个问题就在web.xml背后，它看起来是这样的：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="platform-component-web-rest-manager-authentication" version="3.0">


    <display-name>Authentication Manager</display-name>


    <!-- ****************************************************************** -->
    <!-- SERVLETS -->
    <!-- ****************************************************************** -->         
    <servlet>
        <servlet-name>wd-platform-product-web</servlet-name>
        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>
                com.mycompany.platform.component.web.rest;
                com.mycompany.wd.platform.component.web.rest,
            </param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.provider.scanning.recursive</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>jersey.config.server.provider.classnames</param-name>
            <param-value>
                com.wordnik.swagger.jersey.listing.ApiListingResourceJSON;
                com.wordnik.swagger.jersey.listing.JerseyApiDeclarationProvider;
                com.wordnik.swagger.jersey.listing.JerseyResourceListingProvider
            </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>wd-platform-product-web</servlet-name>
        <url-pattern>/rest/2.0.0/*</url-pattern>
    </servlet-mapping>


    <servlet>
        <servlet-name>swagger-default-jaxrs-config</servlet-name>
        <servlet-class>com.wordnik.swagger.jaxrs.config.DefaultJaxrsConfig</servlet-class>
        <init-param>
            <param-name>api.version</param-name>
            <param-value>2.0.0</param-value>
        </init-param>
        <init-param>
            <param-name>swagger.api.basepath</param-name>
            <param-value>/rest/2.0.0/</param-value>
        </init-param>
        <load-on-startup>2</load-on-startup>
    </servlet>

</web-app>

我的激活器类是标准模型：

import java.util.HashMap;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.service.event.Event;
import org.osgi.service.event.EventAdmin;

/**
 * This is to make sure we signal the application has been deployed/un-deployed
 * via the OSGi EventAdmin service.
 *
 * @author Jakub Podlesak (jakub.podlesak at oracle.com)
 */
public class WebAppContextListener implements BundleActivator, ServletContextListener {

    static EventAdmin ea;

    BundleContext bc;
    ServiceReference eaRef;

    synchronized static EventAdmin getEa() {
        return ea;
    }

    synchronized static void setEa(EventAdmin ea) {
        WebAppContextListener.ea = ea;
    }

    @Override
    public void contextInitialized(final ServletContextEvent sce) {
        if (getEa() != null) {
            final String contextPath = sce.getServletContext().getContextPath();
            getEa().sendEvent(new Event("jersey/test/DEPLOYED",new HashMap<String, String>(){{
                put("context-path", contextPath);}}));
        }
    }

    @Override
    public void contextDestroyed(final ServletContextEvent sce) {
        if (getEa() != null) {
            getEa().sendEvent(new Event("jersey/test/UNDEPLOYED",new HashMap<String, String>(){{put("context-path", sce.getServletContext().getContextPath());}}));
        }
    }

    @Override
    public void start(BundleContext context) throws Exception {
        System.out.println("Started Activator");
        bc = context;
        eaRef = bc.getServiceReference(EventAdmin.class.getName());
        if (eaRef != null) {
            setEa((EventAdmin)bc.getService(eaRef));
        }
    }

    @Override
    public void stop(BundleContext context) throws Exception {
        if (eaRef != null) {
            setEa(null);
            bc.ungetService(eaRef);
        }
    }
}

我的主要休息服务如下：

@Path("/service/authentication")
@Api(value = "/service/authentication", description = "Authentication Service")
public class AuthenticationServiceRestService extends RestService
{

    ServiceLayer<Request<?>> serviceLayer;
    AuthenticationLayer<Request<?>> authenticationLayer;
    ExceptionLayer<Request<?>> exceptionLayer;


    public AuthenticationServiceRestService() throws AuthenticationServiceRestServiceException
    {
        this.serviceLayer = new ServiceLayer<Request<?>>();

        try
        {
            this.authenticationLayer = new AuthenticationLayer<Request<?>>(this.serviceLayer);
        }
        catch (AuthenticationServiceException exception)
        {
            throw new AuthenticationServiceRestServiceException(exception.getMessage(), exception);
        }

        this.exceptionLayer = new ExceptionLayer<Request<?>>(this.authenticationLayer);
    }


    @POST
    @Path("/auth")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @ApiOperation(value = "Get authentication token.", response = AuthenticationTokenFacade.class)
    public Response getAuthenticationToken(@ApiParam(value = "Authentication Data", required = true) AuthenticationRequestFacade authenticationRequestFacade)
    {
        System.out.println("auth request");
        GetAuthenticationTokenJsonRequest getAuthenticationTokenJsonRequest = new GetAuthenticationTokenJsonRequest(authenticationRequestFacade);

        return exceptionLayer.execute(getAuthenticationTokenJsonRequest);
    }

当我向http://localhost:8080/authentication/rest/2.0.0/service/authentication/auth发出POST请求时，我得到了404。我甚至不知道我的全部服务是否在jetty上公布。我怎么能这么做？当我提出请求时，Jetty会在一个巨大的日志中显示这一点：

org.ops4j.pax.logging.pax-logging-api[org.ops4j.pax.web.service.spi.model.ServerModel] : Matching [/authentication/rest/2.0.0/service/authentication/auth]...
org.ops4j.pax.logging.pax-logging-api[org.ops4j.pax.web.service.spi.model.ServerModel] : Path [/authentication/rest/2.0.0/service/authentication/auth] does not match any context

任何帮助使这项工作将是伟大的。事先谢谢，很抱歉这个问题很长，但是我必须确保所有的信息都被提供了。

Answer 1

首先，谢谢您提出的详细问题--这样做要好得多，唯一缺少的是您正在使用的Pax Web版本;-)

其次，您可能对在Pax中使用Karaf感兴趣。通过在Karaf中发布

feature:install war

命令将Pax Web安装在Karaf中。现在，我为什么一开始建议这样做，因为您说您不知道应用程序是否实际可用。对于这一点，Karaf shell中有两个可用的命令，它们将告诉您是否是。其中之一就是

web:list

另一个是

http:list

这两种方法都会给您一个列表，其中包括：( a)部署的web应用程序包；( b)注册的servlet。

这让您对部署的应用程序有了更好的感觉。

现在，我不明白的是，为什么您在WebApplicationBundle (WAB)中有一个激活器，因为对于OSGi，您只需要使用与OSGi声明(包括with )的“常规”war。从这里开始，WebExtender将为您完成工作，就像在您的例子中所做的那样。如果希望使用ServletContextListener，可以在web.xml中以常规方式注册它，或者因为您使用的是带有标准注释的Servlet3 web.xml。

最后一部分，日志消息告诉您，当向服务器发出请求时，还没有为请求找到一个httpContext。这样做的原因很可能是在之前的长日志中的某个地方。注册servlet可能出了问题。同样，web:list命令可能有助于获得更好的图片。

由于Pax Web还没有为此进行显式测试:-)向Pax Web社区提供一个简单的示例以将其添加到示例中并进行集成测试可能会很有趣。询问ops4j邮件列表也总是很好的。