dubbox -- 服务的启动与初始化

步骤调用顺序备注容器启动

com.alibaba.dubbo.container.Main.main(args);

dubbo.properties->dubbo.container->container.start()

container->spring, log4j, jetty...

SpringContainer.java->classpath*:META-INF/spring/*.xml->dubbo.xsd

 bean初始化

<dubbo:service>等自定义标签->[dubbo-config-spring]

DubboNamespaceHandler.java

->new DubboBeanDefinitionParser(ServiceBean.class,true)

spring对bean的初始化操作

[dubbo-config-spring]ServiceBean.java->afterPropertiesSet()->setProvicer(),

setApplication(), setModule(), setRegistries, etMonitor(), setProtocols, setPath() -> export()

自定义标签

的解析和

初始化

连接注册中心

ServiceBean.export()->ServiceConfig.java->doExportUrlsFor1Protocol()->暴露协议protocol.export()

protocol=ExtensionLoader.getExtensionLoader(Protocol.class)..getAdaptiveExtension()--Protocol$Adaptive.java->ExtensionLoader.loadExtensionClasses()->loadFile()->META-INF/dubbo/internal, META-INF/dubbo/, META-INF/services/

->filter, listener, mock->各类的export()

protocol.export()调用链->RegistryProtocol.export()->getRegistry()->扩展的ZookeeperClient()->

registry.subscribe()加入监听列表

注册到注册中心， 并加入监听列表监听注册中心的消息通知启动协议服务器protocol.export()调用链->RestProtocol.export()->doExport()->server.start(), server.deploy根据相就协议启动相应服务器

步骤调用顺序备注容器启动参考提供方 bean初始化<dubbo:reference>等自定义标签->[dubbo-config-spring]
DubboNamespaceHandler.java
->new DubboBeanDefinitionParser(ReferenceBean.class,false) 连接注册中心ReferenceBean.java->afterPropertiesSet()->ReferenceConfig.init()->createProxy()->refProtocol.refer()

refProtocol=ExtensionLoader.getExtensionLoader(Protocol.class).getAdaptiveExtension()
--Protocol$Adaptive.java
->ExtensionLoader.loadExtensionClasses()->loadFile()->META-INF/dubbo/internal/, META-INF/dubbo/, META-INF/services/ ->filter, listener, mock->各类的refer() 服务接口初始化ReferenceConfig.init()->createProxy()->AbstractProxyFactory.getProxy()->JavasistProxyFactory.getProxy()
service接口在实际运行时是com.alibaba.dubbo.common.bytecode.Proxy类的实例