dubbo-启动初始化

dubbo

dubbo-启动初始化

分析入口

//获取属性过程基本会调用到此方法
org.apache.dubbo.common.config.AbstractPrefixConfiguration#getProperty(String key, Object defaultValue){
    getInternalProperty(prefix + key)
}

//初始化与获取配置
org.apache.dubbo.common.utils.ConfigUtils#getProperties
//
org.apache.dubbo.config.spring.context.DubboLifecycleComponentApplicationListener#onApplicationContextEvent
org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener#onApplicationContextEvent{
    //order=LOWEST_PRECEDENCE
    >>>DubboBootstrap.getInstance().start()
}

//spring.handlers
//http\://dubbo.apache.org/schema/dubbo=org.apache.dubbo.config.spring.schema.DubboNamespaceHandler
org.apache.dubbo.config.spring.schema.DubboNamespaceHandler

springboot注入dubbo

@EnableDubbo{
    @EnableDubboConfig{
        @Import(DubboConfigConfigurationRegistrar.class)
    }
    @DubboComponentScan{
        @Import(DubboComponentScanRegistrar.class)
    }
    @EnableDubboLifecycle{
        @Import(DubboLifecycleComponentRegistrar.class)>>{
            //注册事件监听 >>>DubboBootstrap.getInstance().start()
            registerBeans(registry, DubboLifecycleComponentApplicationListener.class);
        	registerBeans(registry, DubboBootstrapApplicationListener.class);
        }
    }
}

注册中心上的注册信息

dubbo://169.254.67.187:20880/com.shareyun.dubbo.demo.DemoService?anyhost=true&application=hello-world-app&deprecated=false&dubbo=2.0.2&dynamic=true&generic=false&interface=com.shareyun.dubbo.demo.DemoService&methods=sayHello&pid=10972&release=2.7.5&side=provider&timestamp=1583457571139

consumer://169.254.67.187/com.shareyun.dubbo.demo.DemoService?application=hello-world&category=consumers&check=false&dubbo=2.0.2&init=false&interface=com.shareyun.dubbo.demo.DemoService&methods=sayHello&pid=2756&release=2.7.5&side=consumer&sticky=false&timestamp=1583457718484

org.apache.dubbo.config.spring.schema.DubboNamespaceHandler#parse
org.apache.dubbo.config.spring.schema.DubboNamespaceHandler#registerApplicationListeners(BeanDefinitionRegistry registry){
    registerBeans(registry, DubboLifecycleComponentApplicationListener.class);
    registerBeans(registry, DubboBootstrapApplicationListener.class);
}

spring命名空间解释

org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver#resolve(String namespaceUri){
    NamespaceHandler namespaceHandler = (NamespaceHandler) BeanUtils.instantiateClass(handlerClass);
    namespaceHandler.init();
}

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#resolveBeforeInstantiation{
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#applyBeanPostProcessorsBeforeInstantiation
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#applyBeanPostProcessorsAfterInitialization
    
}

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#determineConstructorsFromBeanPostProcessors
    
org.springframework.beans.factory.support.SimpleInstantiationStrategy#instantiate(org.springframework.beans.factory.support.RootBeanDefinition, java.lang.String, org.springframework.beans.factory.BeanFactory)
    
//mbd设置初始化方法
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#applyMergedBeanDefinitionPostProcessors{
    for (BeanPostProcessor bp : getBeanPostProcessors()) {
        if (bp instanceof MergedBeanDefinitionPostProcessor) {
            MergedBeanDefinitionPostProcessor bdp = (MergedBeanDefinitionPostProcessor) bp;
            bdp.postProcessMergedBeanDefinition(mbd, beanType, beanName);
            //>>>org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor#buildLifecycleMetadata
        }
    }
}

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最后编辑时间为: 2022/12/15 05:36