Jersey＆Spring管理提供商

Question

我正在使用Jersey 2.4.1 ， Spring 3.2.4和Jetty 7 。

我不明白Jersey如何注冊由Spring管理的提供商。 我用@Provider注釋的@Component也注釋了@Component因為我需要注入。 我將Jersey配置為使用這些提供程序掃描我的包。

以下是我配置Jersey servlet的方法：

public void createJerseyServlet() {
  ResourceConfig resourceConfig = new ResourceConfig();
  resourceConfig.packages("test.web", "org.glassfish.jersey.server.spring");
  resourceConfig.register(LoggingFilter.class);
  ServletHolder servletHolder = new ServletHolder(new ServletContainer(resourceConfig));
  servletContextHandler.addServlet(servletHolder, "/*");
}

啟動時的日志：

INFO - org.glassfish.jersey.server.spring.SpringComponentProvider - Spring context lookup done.
INFO - org.glassfish.jersey.server.spring.SpringComponentProvider - Spring component provider initialized.
INFO - org.glassfish.jersey.server.spring.SpringComponentProvider - Spring managed bean, testResource, registered with HK2.
INFO - org.glassfish.jersey.server.spring.SpringComponentProvider - Spring managed bean, nullPointerExceptionMapper, registered with HK2.
INFO - org.glassfish.jersey.server.spring.SpringComponentProvider - Spring managed bean, filterTest, registered with HK2.
[...]
INFO - org.glassfish.jersey.server.ApplicationHandler - Jersey application initialized.
Root Resource Classes:
  org.obiba.jta.web.TestResource
Pre-match Filters:
   org.glassfish.jersey.filter.LoggingFilter
Global Response Filters:
   org.glassfish.jersey.filter.LoggingFilter
Global Reader Interceptors:
   org.glassfish.jersey.server.internal.MappableExceptionWrapperInterceptor
Global Writer Interceptors:
   org.glassfish.jersey.filter.LoggingFilter
[...]

我的提供程序是通過Spring檢測到的： Spring managed bean, filterTest, registered with HK2但它們沒有出現在ApplicationHandler日志中......並且在運行應用程序時它們不會被使用。

我需要手動注冊它們：

@Resource
private FilterTest filterTest;

@Resource
private MyExceptionMapper myExceptionMapper;

[...]

resourceConfig.register(filterTest);
resourceConfig.register(myExceptionMapper);

甚至更好......解決方法:(

Map<String, Object> providers = applicationContext.getBeansWithAnnotation(Provider.class);
for(Object provider : providers.values()) {
  resourceConfig.register(provider);
}

現在它可以工作（即使它們仍然沒有出現在ApplicationHandler日志中）但是我不明白為什么Jersey在掃描包時沒有自動注冊它們並且看到這些bean是由Spring管理的...

---

這是我的組件......

資源

package test.web;

@Transactional
@Component
@Path("/test")
public class TestResource {
  @Resource
  private MyService myService;

  @GET
  @Path("/inject")
  @Produces(MediaType.TEXT_PLAIN)
  public String testInjection() {
    return "integrationService: " + integrationService;
  }

  @GET
  @Path("/active")
  @Produces(MediaType.TEXT_PLAIN)
  public String testActiveTransaction() {
    return "isActualTransactionActive: " + TransactionSynchronizationManager.isActualTransactionActive();
  }

  @GET
  @Path("/exception")
  @Produces(MediaType.TEXT_PLAIN)
  public String testException() {
    throw new MyException();
  }
}

過濾

package test.web.cfg;

@Provider
@Component
public class FilterTest implements ContainerRequestFilter {
  @Resource
  private MyService myService;
  [...]
}

ExceptionMapper

package test.web.cfg;

@Provider
@Component
public class MyExceptionMapper implements ExceptionMapper<MyException> {
  @Override
  public Response toResponse(MyException exception) {
    return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity("MyException was thrown!").build();
  }
}

最后我的依賴

compile("org.glassfish.jersey.core:jersey-common:2.4.1")
compile("org.glassfish.jersey.core:jersey-server:2.4.1")
compile("org.glassfish.jersey.containers:jersey-container-servlet-core:2.4.1")
compile("org.glassfish.jersey.media:jersey-media-multipart:2.4.1")
compile("org.glassfish.jersey.connectors:jersey-apache-connector:2.4.1")
compile("org.glassfish.jersey.ext:jersey-spring3:2.4.1")

Answer 1

這是一個錯誤......

包掃描組件注冊表無法正常工作： https ： //java.net/jira/browse/JERSEY-2175