列出spring security的所有SecurityFilterChain

最新推荐文章于 2025-03-25 22:04:46 发布

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最新推荐文章于 2025-03-25 22:04:46 发布

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文章标签： java

原文链接：https://my.oschina.net/go4it/blog/1507512

本文介绍了一种在运行时列出所有SecurityFilterChain的方法。通过利用Spring的ApplicationContext来获取名为springSecurityFilterChain的Bean实例，并从中提取过滤链列表。

为什么80%的码农都做不了架构师？>>>

序

本文讲述一下如何在运行时列出所有的SecurityFilterChain。

java

 FilterChainProxy chain = (FilterChainProxy) ApplicationContextHolder.getContext().getBean("springSecurityFilterChain");
 List<SecurityFilterChain> filterChains = chain.getFilterChains();
 System.out.println(filterChains);

ApplicationContextHolder

主要是如何直接使用autowired注入，在启动的时候报错，因此在完全启动之后，从context里头取

@Component
public class ApplicationContextHolder implements ApplicationContextAware {

    private static ApplicationContext ctx;

    public static ApplicationContext getContext() {
        return ctx;
    }


    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        ctx = applicationContext;
    }
}

springSecurityFilterChain

spring-security-config-4.1.4.RELEASE-sources.jar!/org/springframework/security/config/http/HttpSecurityBeanDefinitionParser.java

static void registerFilterChainProxyIfNecessary(ParserContext pc, Object source) {
		if (pc.getRegistry().containsBeanDefinition(BeanIds.FILTER_CHAIN_PROXY)) {
			return;
		}
		// Not already registered, so register the list of filter chains and the
		// FilterChainProxy
		BeanDefinition listFactoryBean = new RootBeanDefinition(ListFactoryBean.class);
		listFactoryBean.getPropertyValues().add("sourceList", new ManagedList());
		pc.registerBeanComponent(new BeanComponentDefinition(listFactoryBean,
				BeanIds.FILTER_CHAINS));

		BeanDefinitionBuilder fcpBldr = BeanDefinitionBuilder
				.rootBeanDefinition(FilterChainProxy.class);
		fcpBldr.getRawBeanDefinition().setSource(source);
		fcpBldr.addConstructorArgReference(BeanIds.FILTER_CHAINS);
		fcpBldr.addPropertyValue("filterChainValidator", new RootBeanDefinition(
				DefaultFilterChainValidator.class));
		BeanDefinition fcpBean = fcpBldr.getBeanDefinition();
		pc.registerBeanComponent(new BeanComponentDefinition(fcpBean,
				BeanIds.FILTER_CHAIN_PROXY));
		pc.getRegistry().registerAlias(BeanIds.FILTER_CHAIN_PROXY,
				BeanIds.SPRING_SECURITY_FILTER_CHAIN);
	}