基于TCP协议实现RPC

RPC的全称：Remote Process Call,即远程过程调用，拥有RMI、webService等诸多成熟方案。
如图：

实现代码如下：
User代码：

package com.test.xulihua;

import java.io.Serializable;

/**
 * Created with IntelliJ IDEA.
 * User:
 * Date: 2018/3/19
 * Time: 11:16
 * To change this template use File | Settings | File Templates.
 */
public class User implements Serializable{
    private String name;
    private int age;
    private boolean sex;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public boolean isSex() {
        return sex;
    }

    public void setSex(boolean sex) {
        this.sex = sex;
    }
}

consumer.java代码

package com.test.xulihua;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.lang.reflect.Method;
import java.net.Socket;

/**
 * Created with IntelliJ IDEA.
 * User: 
 * Date: 2018/3/19
 * Time: 10:40
 * To change this template use File | Settings | File Templates.
 */
public class Consume {
    public static void main(String[] args) throws IOException, NoSuchMethodException, ClassNotFoundException {
        Socket socket = new Socket("127.0.0.1",8888);
        ObjectOutputStream outputStream = new ObjectOutputStream(socket.getOutputStream());
        String interfaceName = HelloSayService.class.getName();
        Method method = HelloSayService.class.getMethod("helloSay",User.class);
        User user =new User();
        user.setName("王五");
        Object[] params = {user};
        outputStream.writeUTF(interfaceName);    //接口名称
        outputStream.writeUTF(method.getName());  //方法名称
        outputStream.writeObject(method.getParameterTypes());
        outputStream.writeObject(params);
        ObjectInputStream inputStream = new ObjectInputStream(socket.getInputStream());
        User object = (User) inputStream.readObject();
        System.out.println(object.getName()+":"+object.getAge()+":");
    }
}

Provider代码：

package com.test.xulihua;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.HashMap;
import java.util.Map;

/**
 * Created with IntelliJ IDEA.
 * User: 
 * Date: 2018/3/19
 * Time: 10:38
 * To change this template use File | Settings | File Templates.
 */
public class ServerProvide {
    private static Map<String,Object> services= new HashMap<String, Object>();
    static{
        services.put(HelloSayService.class.getName(),new HelloSayServiceImpl());
    }

    public static void main(String[] args) throws IOException, ClassNotFoundException, NoSuchMethodException, InvocationTargetException, IllegalAccessException, InterruptedException {
        ServerSocket serverSocket = new ServerSocket(8888);
        while (true){
            Thread.sleep(1000L);
            Socket socket = serverSocket.accept();
            ObjectInputStream inputStream = new ObjectInputStream(socket.getInputStream());
            String interfaceName = inputStream.readUTF();
            String methodName = inputStream.readUTF();
            Class<?>[] paramterType = (Class<?>[]) inputStream.readObject();
            Object[] paramter = (Object[]) inputStream.readObject();
            Class serviceClass = Class.forName(interfaceName);
            Object service =   services.get(interfaceName);
            Method method = serviceClass.getMethod(methodName,paramterType);
            Object result = method.invoke(service,paramter);
            ObjectOutputStream outputStream = new ObjectOutputStream(socket.getOutputStream());
            outputStream.writeObject(result);

        }
    }
}

接口HelloSayService.java

package com.test.xulihua;

/**
 * Created with IntelliJ IDEA.
 * User: 
 * Date: 2018/3/19
 * Time: 10:35
 * To change this template use File | Settings | File Templates.
 */
public interface HelloSayService {

    public User helloSay(User user);
}

接口service实现代码：

package com.test.xulihua;

/**
 * Created with IntelliJ IDEA.
 * User: 
 * Date: 2018/3/19
 * Time: 10:37
 * To change this template use File | Settings | File Templates.
 */
public class HelloSayServiceImpl implements HelloSayService {
    public User helloSay(User user) {
        user.setAge(123);
        user.setSex(false);
        return user ;
    }
}