java - 带依赖注入(inject)的 Spring boot 和 Jersey 过滤器

Question

有了带有 Jersey 的 Spring 启动，我想使用一些内部使用依赖注入(inject)的过滤器。

问题是，Jersey Server 似乎无法使用 Spring 的 ApplicationContext，我们在其中定义了该依赖项。

这里是 JerseyConfiguration

@Configuration
public class JerseyConfig extends ResourceConfig {

    private static final String CONTEXT_CONFIG = "contextConfig";

    private static final String RESOURCE_PACKAGE = "presentation.resource";

    public JerseyConfig() {
        ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        applicationContext.refresh();
        property(CONTEXT_CONFIG, applicationContext);
        register(SpringLifecycleListener.class);
        register(MyFilter.class); //Filter I want to use 
        packages(RESOURCE_PACKAGE);
    }
}

此处的过滤器具有 @Autowire

@Priority(40)
@Primary
@Provider
@MyFilter
class MyFilter(@Context var resourceInfo: ResourceInfo) extends ContainerRequestFilter with DefaultRuntime {

  implicit var finagleService: CommonFinagleService = _

  @Primary
  @Autowired(required = false)
  def setHttpFinagleService(@Autowired(required = false)
                            @Primary
                            _finagleService: CommonFinagleService): Unit = {
    finagleService = _finagleService
    finagleService.init(getProperties())
  }

  override def filter(context: ContainerRequestContext): Unit = {
    logger.debug(null, "filter running.....")
  }
}

这就是 applicationContext.xml 的样子

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
            http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context.xsd">

    <context:annotation-config/>

    <bean id="httpFinagleService" class="foo.bla.CommonFinagleService"/>

</beans>

最后是Spring boot主类

@Configuration
@SpringBootApplication(exclude = {org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfiguration.class,
        org.springframework.boot.autoconfigure.amqp.RabbitAutoConfiguration.class,
        org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration.class,
        org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration.class})
public class SpringBootRestApplication extends SpringBootServletInitializer {

    public static void main(String[] args) {

        new SpringBootRestApplication().configure(new SpringApplicationBuilder(SpringBootRestApplication.class)).run(args);
    }

我运行主类，并调用 JerseyConfig 类，并且我能够注册过滤器。不幸的是，一旦服务运行，当我向一个端点运行请求时，过滤器将被调用到 setHttpFinagleService方法传递 CommonFinagleService 的空依赖项

我也在使用jersey-spring4依赖关系

<dependency>
            <groupId>org.glassfish.jersey.ext</groupId>
            <artifactId>jersey-spring4</artifactId>
            <version>2.27</version>
        </dependency>

Spring boot和Spring是2.1.0和5.1.8

知道这里可能出了什么问题吗

使用 Grizzly + Jersey 一切都很好。

问候

Answer 1

您需要让 Spring 选择 MyFilter 作为 Bean，

添加到类级别@Component并确保通过组件扫描拾取它(如果有的话)

请注意，@Provider 可能是 redundant here如果你使用Spring DI