基于Socket+Zookeeper的简单RPC框架

作者: 蓝汀华韶 | 来源:发表于2018-02-28 13:54 被阅读144次

    github:https://github.com/shawntime/shawn-native-rpc

    需要自己实现一个简单rpc框架的,可以参考一下,提供一点点小思路

    RPC过程详解

    image.png image.png

    实现内容

    • json序列化
    • zookeeper实现服务端服务注册和客户端的服务发现和负载均衡
    • 自动扫描服务端所提供的接口,并注册到zookeeper中
    • 自动生成客户端动态代理对象
    • socket实现通讯

    模块说明

    • native-core:公共包:注解、异常定义、通讯协议、序列化、zookeeper客户端封装以及包扫描,配置加载等工具类
    • native-customer:调用方需引入的模块,实现自动生成客户端动态代理对象,zk的服务发现和负载均衡,以及通信实现
    • native-provider:服务提供方需引入的模块,实现了接口客户端请求并处理,zk的服务注册
    • native-interface:对外提供服务的接口定义
    • shawn-test-provider:提供方demo
    • shawn-test-customer:调用方demo

    配置

    provider配置

    配置naive-rpc.properties文件

    scanPackage=com.shawntime.rpc.api
    servicePort=11001
    
    • scanPackage: 包扫描路径,自动创建包路径下接口动态代理类
    • servicePort: 服务端监听端口号

    配置spring

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:cache="http://www.springframework.org/schema/cache"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:aop="http://www.springframework.org/schema/aop"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-4.1.xsd
           http://www.springframework.org/schema/cache
           http://www.springframework.org/schema/cache/spring-cache-4.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    
        <context:component-scan base-package="com.shawntime"/>
        <context:annotation-config/>
        <aop:aspectj-autoproxy proxy-target-class="true"/>
    
        <!-- 配置消息格式化方式 -->
        <bean id="jsonFormatter" class="com.shawntime.rpc.core.serialize.json.JsonFormatter" />
        <bean id="jsonParse" class="com.shawntime.rpc.core.serialize.json.JsonParse" />
    
        <!-- 配置服务类,该处使用socket处理请求 -->
        <bean id="rpcProvider" class="com.shawntime.rpc.provider.service.socket.SocketRpcProvider">
            <property name="formatter" ref="jsonFormatter" />
            <property name="parse" ref="jsonParse" />
        </bean>
    
        <!-- 配置zk服务器集群信息,作服务注册 -->
        <bean id="zookeeperClient" class="com.shawntime.rpc.core.zookeeper.ZookeeperClient">
            <constructor-arg value="127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183" />
        </bean>
    </beans>
    
    customer配置

    配置naive-rpc.properties文件

    scanPackage=com.shawntime.rpc.api
    
    • scanPackage: 包扫描路径,自动创建包路径下接口动态代理类

    配置spring

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:cache="http://www.springframework.org/schema/cache"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:aop="http://www.springframework.org/schema/aop"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-4.1.xsd
           http://www.springframework.org/schema/cache
           http://www.springframework.org/schema/cache/spring-cache-4.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    
        <context:component-scan base-package="com.shawntime"/>
        <context:annotation-config/>
        <aop:aspectj-autoproxy proxy-target-class="true"/>
    
        <!-- 配置消息格式化方式 -->
        <bean id="jsonFormatter" class="com.shawntime.rpc.core.serialize.json.JsonFormatter" />
        <bean id="jsonParse" class="com.shawntime.rpc.core.serialize.json.JsonParse" />
        
        <!-- 客户端处理配置 -->
        <bean id="socketInvoke" class="com.shawntime.rpc.customer.invoke.socket.SocketInvoke" />
        
        <bean id="beanNameGenerator" class="org.springframework.context.annotation.AnnotationBeanNameGenerator" />
    
        <!-- 客户端动态代理注册类 -->
        <bean id="customBeanDefinitionRegistryPostProcessor"
              class="com.shawntime.rpc.customer.config.CustomBeanDefinitionRegistryPostProcessor">
            <property name="invoke" ref="socketInvoke" />
            <property name="formatter" ref="jsonFormatter" />
            <property name="parse" ref="jsonParse" />
            <property name="beanNameGenerator" ref="beanNameGenerator" />
            <property name="serviceFindManager" ref="serviceFindManager" />
        </bean>
    
        <!-- 服务发现和负载均衡 -->
        <bean id="serviceFindManager" class="com.shawntime.rpc.customer.ServiceFindManager">
            <property name="zookeeperClient" ref="zookeeperClient" />
        </bean>
    
        <!-- 配置zk服务器集群信息,作服务注册 -->
        <bean id="zookeeperClient" class="com.shawntime.rpc.core.zookeeper.ZookeeperClient">
            <constructor-arg value="127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183" />
        </bean>
    </beans>
    

    Demo

    • 接口定义,用RpcService注解
    @RpcService
    public interface IUserService {
    
        UserOut getUserInfo(UserIn userIn, Integer level);
    
        void addUserProvince(ProvinceIn in);
    }
    
    • 提供方
    package com.shawntime.test.provider;
    
    import com.shawntime.rpc.api.IUserService;
    import com.shawntime.rpc.api.contract.ProvinceIn;
    import com.shawntime.rpc.api.contract.UserIn;
    import com.shawntime.rpc.api.contract.UserOut;
    import org.springframework.stereotype.Component;
    
    @Component
    public class UserService implements IUserService {
    
        public UserOut getUserInfo(UserIn userIn, Integer level) {
            UserOut userOut = new UserOut();
            if (level > 0) {
                userOut.setUserId(1);
                userOut.setAddress("安徽芜湖");
                userOut.setAge(18);
                userOut.setUserName(userIn.getUserName());
            } else {
                userOut.setUserId(2);
                userOut.setAddress("河北保定");
                userOut.setAge(19);
                userOut.setUserName(userIn.getUserName());
            }
            return userOut;
        }
    
        public void addUserProvince(ProvinceIn provinceIn) {
            System.out.println(provinceIn);
        }
    }
    
    
    • 调用方
    @Component
    public class LoginService implements ILoginService {
    
        @Resource
        private IUserService userService;
    
        public boolean login(String userName, String password, Integer level) {
            UserIn userIn = new UserIn();
            userIn.setUserName(userName);
            userIn.setPassword(password);
            UserOut userInfo = userService.getUserInfo(userIn, level);
            System.out.println("userId:" + userInfo.getUserId()
                    + ", age:" + userInfo.getAge()
                    + ", address:" + userInfo.getAddress());
            return userInfo != null;
        }
    
        public int addUserProvince(ProvinceIn in) {
            userService.addUserProvince(in);
            return 1;
        }
    }
    

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