### Implement RPC Service with @NettyRpcService Annotation in Java

Source: https://github.com/luxiaoxun/nettyrpc/blob/master/README.md

This snippet shows how to implement the `HelloService` interface. The `@NettyRpcService` annotation marks the class as an RPC service, specifying the interface and version. It includes implementations for both `hello` methods, demonstrating the server-side service logic.

```Java
@NettyRpcService(HelloService.class, version = "1.0")
public class HelloServiceImpl implements HelloService {
    public HelloServiceImpl(){}
	
    @Override
    public String hello(String name) {
        return "Hello " + name;
    }

    @Override
    public String hello(Person person) {
        return "Hello " + person.getFirstName() + " " + person.getLastName();
    }
}
```

--------------------------------

### Call RPC Service Using RpcClient in Java

Source: https://github.com/luxiaoxun/nettyrpc/blob/master/README.md

This snippet demonstrates how to call an RPC service using the `RpcClient`. It illustrates both synchronous and asynchronous call patterns, including service creation and retrieving results, showcasing client-side service consumption.

```Java
	final RpcClient rpcClient = new RpcClient("127.0.0.1:2181");
   		
   	// Sync call
   	HelloService helloService = rpcClient.createService(HelloService.class, "1.0");
   	String result = helloService.hello("World");
   		
   	// Async call
   	RpcService client = rpcClient.createAsyncService(HelloService.class, "2.0");
   	RPCFuture helloFuture = client.call("hello", "World");
   	String result = (String) helloFuture.get(3000, TimeUnit.MILLISECONDS);
```

--------------------------------

### Define RPC Service Interface in Java

Source: https://github.com/luxiaoxun/nettyrpc/blob/master/README.md

This snippet defines a simple Java interface `HelloService` with two overloaded `hello` methods, demonstrating the contract for RPC services that can be exposed via NettyRpc.

```Java
public interface HelloService {
    String hello(String name);
    String hello(Person person);
}
```

--------------------------------

### Inject RPC Service with @RpcAutowired Annotation in Java

Source: https://github.com/luxiaoxun/nettyrpc/blob/master/README.md

This snippet illustrates how to inject RPC services into a class using the `@RpcAutowired` annotation. It demonstrates injecting different versions of the same service, simplifying client-side service consumption by automatically wiring the RPC proxy.

```Java
public class Baz implements Foo {
    @RpcAutowired(version = "1.0")
    private HelloService helloService1;
           
    @RpcAutowired(version = "2.0")
    private HelloService helloService2;
           
    @Override
    public String say(String s) {
        return helloService1.hello(s);
    }
}
```

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