分布式 RPC 框架 - 使用说明

package com.xxx.rpc.sample.api;

public interface HelloService {

    String hello(String name);
}

<!-- RPC Sample API -->
<dependency>
    <groupId>com.xxx.rpc</groupId>
    <artifactId>rpc-sample-api</artifactId>
    <version>${version.rpc}</version>
</dependency>

<!-- RPC Server -->
<dependency>
    <groupId>com.xxx.rpc</groupId>
    <artifactId>rpc-server</artifactId>
    <version>${version.rpc}</version>
</dependency>

package com.xxx.rpc.sample.server;

import com.xxx.rpc.sample.api.HelloService;
import com.xxx.rpc.server.RpcService;

@RpcService(HelloService.class)
public class HelloServiceImpl implements HelloService {

    @Override
    public String hello(String name) {
        return "Hello! " + name;
    }
}

<?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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.xxx.rpc.sample.server"/>

    <context:property-placeholder location="classpath:rpc.properties"/>

    <!-- Service Registry -->
    <bean id="serviceRegistry" class="com.xxx.rpc.registry.zookeeper.ZooKeeperServiceRegistry">
        <constructor-arg name="zkAddress" value="${rpc.registry_address}"/>
    </bean>

    <!-- RPC Server -->
    <bean id="rpcServer" class="com.xxx.rpc.server.RpcServer">
        <constructor-arg name="serviceAddress" value="${rpc.service_address}"/>
        <constructor-arg name="serviceRegistry" ref="serviceRegistry"/>
    </bean>

</beans>

rpc.service_address=127.0.0.1:8000
rpc.registry_address=127.0.0.1:2181

package com.xxx.rpc.sample.server;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class RpcBootstrap {

    public static void main(String[] args) {
        new ClassPathXmlApplicationContext("spring.xml");
    }
}

<!-- RPC Sample API -->
<dependency>
    <groupId>com.xxx.rpc</groupId>
    <artifactId>rpc-sample-api</artifactId>
    <version>${version.rpc}</version>
</dependency>

<!-- RPC Client -->
<dependency>
    <groupId>com.xxx.rpc</groupId>
    <artifactId>rpc-client</artifactId>
    <version>${version.rpc}</version>
</dependency>

<?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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">

    <context:property-placeholder location="classpath:rpc.properties"/>

    <!-- Service Discovery -->
    <bean id="serviceDiscovery" class="com.xxx.rpc.registry.zookeeper.ZooKeeperServiceDiscovery">
        <constructor-arg name="zkAddress" value="${rpc.registry_address}"/>
    </bean>

    <!-- RPC Proxy -->
    <bean id="rpcProxy" class="com.xxx.rpc.client.RpcProxy">
        <constructor-arg name="serviceDiscovery" ref="serviceDiscovery"/>
    </bean>

</beans>

rpc.registry_address=127.0.0.1:2181

@Autowired
private RpcProxy rpcProxy; // 1

...

HelloService helloService = rpcProxy.create(HelloService.class); // 2
String result = helloService.hello("World"); // 3