java接口的实例化

代码

public interface RequestHandler {
    void onRequest(String recive, String toRespon);
}public interface RequestHandler {
    void onRequest(String recive, String toRespon);
}

public class RpcServer {

    private RequestHandler handler = new RequestHandler() {
        @Override
        public void onRequest(String recive, String toResp) {
            System.out.println(recive);
            System.out.println(toResp);
        }
    };

    public RequestHandler getHandler() {
        return handler;
    }

    public void setHandler(RequestHandler handler) {
        this.handler = handler;
    }

}

    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );
        //stringAl1();
//        StringAlgorithm1.test();
        RpcServer rpcServer = new RpcServer();
        RequestHandler handler = rpcServer.getHandler();
        handler.onRequest("hhei","ouou");
    }

使用的原因：只需要临时需要创建一个接口的实现类，上面的"技巧"可以用来简化代码

https://cloud.tencent.com/developer/article/1027960?from=15425