rpc 小例子

RpcFramework

/*
* Copyright 2011 Alibaba.com All right reserved. This software is the
* confidential and proprietary information of Alibaba.com ("Confidential
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*/

/**
* RpcConsumer
*
* @author william.liangf
*/
public class RpcConsumer {

public static void main(String[] args) throws Exception {
HelloService service = RpcFramework.refer(HelloService.class, "127.0.0.1", 1234);
for (int i = 0; i < Integer.MAX_VALUE; i ++) {
String hello = service.hello("World" + i);
System.out.println(hello);
Thread.sleep(1000);
}
}

}

RpcConsumer

实际上，RPC的原理其实很简单：
服务器启动了一个线程监听 Socket 端口,
有Socket访问了, 反序列化解析出
调用哪个Service 哪个 方法, 以及传入的 参数,
再用Socket 写回去.

客户端 利用 Jdk 的Proxy 生成了一个代理类,
在创建 Proxy 时建立与服务器的Socket连接.
调用 Proxy 的方法时, 向服务器发送数据, 等待结果返回.