服务端 ：
HelloService
public interface HelloService {
public String hello(String name);
}
HelloServiceImpl
public class HelloServiceImpl implements HelloService {
@Override
public String hello(String name) {
return "Hello " + name;
}
}
RPCServer
public class RPCServer {
private ExecutorService threadPool;
private static final int DEFAULT_THREAD_NUM = 10;
public RPCServer() {
this.threadPool = Executors.newFixedThreadPool(DEFAULT_THREAD_NUM);
}
public void register(Object service, int port){
try {
System.out.println("server start...");
ServerSocket server = new ServerSocket(port);
Socket socket = null;
while ((socket = server.accept()) != null){
System.out.println("client connected..");
threadPool.execute(new Processor(socket, service));
}
}catch (IOException e){
e.printStackTrace();
}
}
class Processor implements Runnable{
Socket socket;
Object service;
public Processor(Socket socket, Object service) {
this.socket = socket;
this.service = service;
}
public void process(){
}
@Override
public void run() {
try {
ObjectInputStream in = new ObjectInputStream(socket.getInputStream());
String methodName = in.readUTF();
Class<?>[] paramterTypes = (Class<?>[]) in.readObject();
Object[] parameters = (Object[]) in.readObject();
Method method = service.getClass().getMethod(methodName, paramterTypes);
try {
Object result = method.invoke(service, parameters);
ObjectOutputStream out = new ObjectOutputStream(socket.getOutputStream());
out.writeObject(result);
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
}
}
ServerTest
public class ServerTest {
public static void main(String[] args) {
HelloService helloService = new HelloServiceImpl();
RPCServer server = new RPCServer();
server.register(helloService, 50001);
}
}
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客户端：
public class RPCClientTest {
public static void main(String[] args) {
HelloService helloService = getClient(HelloService.class, "127.0.0.1", 50001);
System.out.println(helloService.hello("saxing"));
}
@SuppressWarnings("unchecked")
public static <T> T getClient(Class<T> clazz, final String ip, final int port){
return (T) Proxy.newProxyInstance(RPCClientTest.class.getClassLoader(), new Class<?>[]{clazz},
new InvocationHandler() {
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Socket socket = new Socket(ip, port);
ObjectOutputStream out = new ObjectOutputStream(socket.getOutputStream());
out.writeUTF(method.getName());
out.writeObject(method.getParameterTypes());
out.writeObject(args);
ObjectInputStream in = new ObjectInputStream(socket.getInputStream());
return in.readObject();
}
});
}
}