将弹簧靴与RESTEasy集成 [英] Integrating spring-boot with RESTEasy

问题描述

我正在尝试对Spring Boot应用程序进行原型设计.我来自Guice JAX-RS应用程序，因此与Spring MVC相比，我更喜欢标准JAX-RS批注.我已经让Jetty上菜并服务:

I am trying to prototype a Spring Boot application. I'm coming from a Guice JAX-RS application, so I prefer the standard JAX-RS annotations to Spring MVC. I've gotten Jetty up and serving:

@Configuration
@Import({ResteasyBootstrap.class, SpringBeanProcessorServletAware.class, HttpServletDispatcher.class})
public class EmbeddedJetty {
    @Bean
    @Singleton
    public EmbeddedServletContainerFactory servletContainer() {
        JettyEmbeddedServletContainerFactory factory = new JettyEmbeddedServletContainerFactory();
        factory.setPort(9000);
        factory.setSessionTimeout(10, TimeUnit.MINUTES);
        return factory;
    }
}

但是，我只是不知道如何正确连接RESTEasy.使用上面的SpringBeanProcessorServletAware失败，看来ServletContext在最终使用之前并没有通过ServletContextAware注入:

However, I just can't figure out how to get RESTEasy hooked up correctly. With the above SpringBeanProcessorServletAware it bails, seemingly the ServletContext is not injected through ServletContextAware before it ends up being used:

java.lang.NullPointerException: null
    at org.jboss.resteasy.plugins.spring.SpringBeanProcessorServletAware.getRegistry(SpringBeanProcessorServletAware.java:30)
    at org.jboss.resteasy.plugins.spring.SpringBeanProcessor.postProcessBeanFactory(SpringBeanProcessor.java:247)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:174)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:680)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:522)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766)

我也尝试使用SpringContextLoaderListener，但这似乎与spring-boot AnnotationConfigEmbeddedWebApplicationContext类冲突.

I also tried using the SpringContextLoaderListener, but that seems to conflict with the spring-boot AnnotationConfigEmbeddedWebApplicationContext class.

我正在使用spring-boot 1.3.3和spring-framework 4.3.0.rc1

I'm using spring-boot 1.3.3 and spring-framework 4.3.0.rc1

推荐答案

另一个答案不会像Spring bean那样拥有您的资源，这种自动配置将正确地集成它们:

The other answer won't have your resources as spring beans, this autoconfiguration will integrate them properly:

配置类:

@Configuration
@ConditionalOnWebApplication
public class RestEasyAutoConfigurer {


    private Environment environment;   

    @Bean(name = "resteasyDispatcher")
    public ServletRegistrationBean resteasyServletRegistration() {
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(new HttpServletDispatcher(), getPrefix()
                + "/*");
        registrationBean.setInitParameters(ImmutableMap.of("resteasy.servlet.mapping.prefix", "/rs/")); // set prefix here
        registrationBean.setLoadOnStartup(1);
        return registrationBean;
    }

    @Bean(destroyMethod = "cleanup")
    public static RestEasySpringInitializer restEasySpringInitializer() {
        return new RestEasySpringInitializer();
    }    

    @Bean
    // use Spring Boot configured Jackson
    public CustomResteasyJackson2Provider jackson2Provider(ObjectMapper mapper) {
        return new CustomResteasyJackson2Provider(mapper); 
    }

    public static class RestEasySpringInitializer
            implements
                ServletContextInitializer,
                ApplicationContextAware,
                BeanFactoryPostProcessor {

        private ResteasyDeployment deployment;

        private ConfigurableApplicationContext applicationContext;

        private ConfigurableListableBeanFactory beanFactory;

        public void cleanup() {
            deployment.stop();
        }

        @Override
        public void onStartup(ServletContext servletContext) throws ServletException {
            ListenerBootstrap config = new ListenerBootstrap(servletContext);
            deployment = config.createDeployment();
            deployment.start();

            servletContext.setAttribute(ResteasyProviderFactory.class.getName(), deployment.getProviderFactory());
            servletContext.setAttribute(Dispatcher.class.getName(), deployment.getDispatcher());
            servletContext.setAttribute(Registry.class.getName(), deployment.getRegistry());

            SpringBeanProcessor processor = new SpringBeanProcessor(deployment.getDispatcher(),
                    deployment.getRegistry(), deployment.getProviderFactory());
            processor.postProcessBeanFactory(beanFactory);
            applicationContext.addApplicationListener(processor);
        }

        @Override
        public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
            this.beanFactory = beanFactory;
        }

        @Override
        public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
            this.applicationContext = (ConfigurableApplicationContext) applicationContext;
        }
    }
}

还有杰克逊的提供者:

@Provider
@Consumes({"application/*+json", "text/json"})
@Produces({"application/*+json", "text/json"})
public class CustomResteasyJackson2Provider extends ResteasyJackson2Provider {
    private ObjectMapper mapper;

    public CustomResteasyJackson2Provider(ObjectMapper mapper) {
        this.mapper = mapper;
    }

    @Override
    public ObjectMapper locateMapper(Class<?> type, MediaType mediaType) {
        return Optional.ofNullable(_mapperConfig.getConfiguredMapper()).orElse(mapper);
    }    
}

注意:这是Spring Boot 1.3.3/RESTEasy 3.0.16的有效配置

NOTE: this is a working configuration for Spring Boot 1.3.3 / RESTEasy 3.0.16

这篇关于将弹簧靴与RESTEasy集成的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！