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Spring + Netty + Protostuff + ZooKeeper 实现了一个轻量级 RPC 框架,使用 Spring 提供依赖注入与参数配置,使用 Netty 实现 NIO 方式的数据传输,使用 Protostuff 实现对象序列化,使用 ZooKeeper 实现服务注册与发现。使用该框架,可将服务部署到分布式环境中的任意节点上,客户端通过远程接口来调用服务端的具体实现,让服务端与客户端的开发完全分离,为实现大规模分布式应用提供了基础支持

Java 100.00%
remote-procedure-calls rpc-framework spring netty protobuffer zookeeper lightbox

mini-rpc's Introduction

A Minimal RPC Implement with Java.

https://travis-ci.org/classtag/MiniRpc

Spring + Netty + Protostuff + ZooKeeper 实现了一个轻量级 RPC 框架,使用 Spring 提供依赖注入与参数配置,使用 Netty 实现 NIO 方式的数据传输,使用 Protostuff 实现对象序列化,使用 ZooKeeper 实现服务注册与发现。使用该框架,可将服务部署到分布式环境中的任意节点上,客户端通过远程接口来调用服务端的具体实现,让服务端与客户端的开发完全分离,为实现大规模分布式应用提供了基础支持。

如何测试

  1. 环境准备:maven, intellij-idea
  2. 下载安装并启动zookeeper https://www.apache.org/dyn/closer.cgi/zookeeper/
  3. 启动服务端 me.anduo.rpc.server.core.RpcBootstrap
  4. 启动测试 me.anduo.rpc.example.HelloServiceTest

TODO LIST

  • add metrics.
  • support client pool

mini-rpc's People

Contributors

dependabot[bot] avatar duoan avatar

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mini-rpc's Issues

怎么知道启动成功了还是没启动成功?

我把它导入到eclipse后,按照你的描述:
先启动服务端 me.anduo.rpc.server.core.RpcBootstrap
再启动测试 me.anduo.rpc.example.HelloServiceTest
并且在main函数里写了打印语句,但控制台并没有输出,我现在遇到的问题是,我搞不清它到底是启动成功了,还是没有启动成功?
请求指导,谢谢!

如图所示:

image

image

请问下例子中zookeeper创建节点报了个错是什么原因,百度了下没用找到合适的解决方法

org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /registry/data
at org.apache.zookeeper.KeeperException.create(KeeperException.java:114)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:786)
at me.anduo.rpc.server.core.ServiceRegistry.createNode(ServiceRegistry.java:74)
at me.anduo.rpc.server.core.ServiceRegistry.register(ServiceRegistry.java:44)
at me.anduo.rpc.server.core.RpcServer.afterPropertiesSet(RpcServer.java:94)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1573)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1511)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:191)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:636)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:934)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:83)
at me.anduo.rpc.server.core.RpcBootstrap.main(RpcBootstrap.java:12)

bug

The channelRead0 method in RpcHandler returns error=null by default in its response.
However, in RpcProxy, response.isError() is used to determine whether an exception should be thrown.
The implementation of response.isError() is shown below:

public boolean isError(){
		return error == null;
	}

This can cause errors even when the operation is executed normally.

这里是中文翻译

在RpcHandler的channelRead0方法中,response默认返回error=null 但是在RpcProxy中,使用response.isError()来是否执行异常,这将会导致正常执行也出错

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