resteasy ContainerRequestFilter 在springboot中不起作用

Question

resteasy 3.1.3.Final 和 springboot 1.5.7 我想在请求进入 restful 方法之前做一些事情，但它从来没有奏效。 这里是restful方法接口。

@Path("/demo")
@Consumes({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML})
@Produces({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML})
public interface DemoService {

  @POST
  @Path("/query")
  List<EntityDemoInfo> queryByType(QueryRequest requst);
}

这是过滤器。

@Provider
@PreMatching
public class RequestFilter implements HttpRequestPreprocessor,ContainerRequestFilter{
  @Override
  public void filter(ContainerRequestContext requestContext) throws IOException {
    System.out.println("-----------------");
  }

  @Override
  public void preProcess(HttpRequest request) {
    System.out.println("================");
  }
}

它永远不会进入过滤器并打印日志，即使我尝试了注释 @Provider/@PreMatching/@Configuration 的任何组合。

后来我想可能是注册表问题，并尝试在@SpringBootApplication 类中添加@Bean。这可以打印我注册的内容，但是在调试请求时注册表/工厂没有我的RequestFilter，因此它不起作用.它出什么问题了？谢谢！

@Bean
public SynchronousDispatcher synchronousDispatcher() {
    ResteasyProviderFactory providerFactory = ResteasyProviderFactory.getInstance();
    RequestFilter requestFilter = new RequestFilter();
    providerFactory.getContainerRequestFilterRegistry().registerSingleton(requestFilter);
    SynchronousDispatcher dispatcher = new SynchronousDispatcher(providerFactory);
    dispatcher.addHttpPreprocessor(requestFilter);
    System.out.println("*****************");
    System.out.println(providerFactory.getContainerRequestFilterRegistry().preMatch());
    return dispatcher;
}

正如 https://github.com/paypal/resteasy-spring-boot 中的“paypal”代码所做的那样，我添加了如下面提到的 Hantsy 的 RequestFilter，它没有用！

这是日志。

14:44:01.537 [main] INFO org.apache.tomcat.util.net.NioSelectorPool Using a shared selector for servlet write/read
14:44:01.548 [main] INFO org.jboss.resteasy.resteasy_jaxrs.i18n RESTEASY002225: Deploying javax.ws.rs.core.Application: class com.sample.app.JaxrsApplication
@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@   ------This is what I add in JaxrsApplication
14:44:01.548 [main] INFO org.jboss.resteasy.resteasy_jaxrs.i18n RESTEASY002215: Adding singleton provider java.lang.Class from Application class com.sample.app.JaxrsApplication
14:44:01.554 [main] INFO org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer Tomcat started on port(s): 8080 (http)
14:44:01.559 [main] INFO com.sample.app.Application Started Application in 2.478 seconds (JVM running for 2.978)



//There is when i post a request as it say what happened,nothing,but got the response.Thus it didn't work!



14:45:58.657 [RMI TCP Connection(2)-127.0.0.1] INFO org.springframework.boot.admin.SpringApplicationAdminMXBeanRegistrar$SpringApplicationAdmin Application shutdown requested.
14:45:58.657 [RMI TCP Connection(2)-127.0.0.1] INFO org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@34f22f9d: startup date [Fri Oct 20 14:43:59 CST 2017]; root of context hierarchy
14:45:58.659 [RMI TCP Connection(2)-127.0.0.1] INFO org.springframework.context.support.DefaultLifecycleProcessor Stopping beans in phase 0
14:45:58.660 [RMI TCP Connection(2)-127.0.0.1] INFO org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter Unregistering JMX-exposed beans on shutdown
14:45:58.660 [RMI TCP Connection(2)-127.0.0.1] INFO org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter Unregistering JMX-exposed beans
14:45:58.660 [RMI TCP Connection(2)-127.0.0.1] INFO org.springframework.jmx.export.annotation.AnnotationMBeanExporter Unregistering JMX-exposed beans on shutdown

Answer 1

resteasy 文档提供了将 resteasy 与 Spring 和 Spring Boot 集成的简单指南。希望这些链接对您有所帮助。

• Resteasy and Spring Integration
• Spring Boot starter，在 43.4 中描述。 Resteasy 文档的 Spring Boot 入门部分。

如果您使用文档中描述的 Spring Boot，只需在 Application 类中注册您的自定义过滤器。

@Component
@ApplicationPath("/sample-app/")
public class JaxrsApplication extends Application {

@Override
public Set<Object> getSingletons() {

    Set<Object> singletons = new HashSet<>();
    singletons.add(yourFilter);
    return singletons;
 }  
}

更新：我分叉了 paypal/resteasy-spring-boot，并修改了示例应用程序，添加了 EchoFitler 用于演示目的。

检查source codes from my Github account。

1. 通过mvn spring-boot:run运行示例应用程序。

2. 使用 curl 测试 api。

   # curl -v -X POST -H "Content-Type:text/plain" -H "Accept:application/json" http://localhost:8080/sample-app/echo -d "test"
   Note: Unnecessary use of -X or --request, POST is already inferred.
   *   Trying ::1...
   * TCP_NODELAY set
   * Connected to localhost (::1) port 8080 (#0)
   > POST /sample-app/echo HTTP/1.1
   > Host: localhost:8080
   > User-Agent: curl/7.56.0
   > Content-Type:text/plain
   > Accept:application/json
   > Content-Length: 4
   >
   * upload completely sent off: 4 out of 4 bytes
   < HTTP/1.1 200
   < X-Application-Context: application
   < Content-Type: application/json
   < Content-Length: 45
   < Date: Fri, 20 Oct 2017 07:19:43 GMT
   <
   {"timestamp":1508483983603,"echoText":"test"}* Connection #0 to host localhost left intact
   

3. 您将在 spring-boot 控制台中看到过滤信息。

   filtering request context:org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext@1ca8d1e4
   filtering request/response context:org.jboss.resteasy.core.interception.jaxrs.ResponseContainerRequestContext@1787a18c
    org.jboss.resteasy.core.interception.jaxrs.ContainerResponseContextImpl@4aad828e
   

希望这有帮助。