add ScalaBasic/ProxyDesignPattern2/, update readme

README.md

@@ -591,7 +591,7 @@
 			- [Observer1](./src/main/scala/ScalaBasic/Observer1)
 		- Proxy
 			- [ProxyDesignPattern1](./src/main/scala/ScalaBasic/ProxyDesignPattern1)
-
+			- [ProxyDesignPattern2](./src/main/scala/ScalaBasic/ProxyDesignPattern2) : RMI demo
 
 12. Scala Script example
 	- [DirectoryOP](./src/main/scala/ScalaBasic/DirectoryOP.scala) - Scala `Directory OP` example

src/main/scala/ScalaBasic/ProxyDesignPattern2/rmi/MyRemote.scala

@@ -0,0 +1,14 @@
+package ScalaBasic.ProxyDesignPattern2.rmi
+
+import java.rmi.{Remote, RemoteException}
+
+// https://www.bilibili.com/video/BV12N411R726?p=267&spm_id_from=pageDriver
+
+// a trait, will be used in local and remote
+trait MyRemote extends Remote{
+
+  // method
+  // (an abstract method)
+  @throws(classOf[RemoteException])
+  def sayHello():String // throws RemoteException
+}

src/main/scala/ScalaBasic/ProxyDesignPattern2/rmi/MyRemoteClient.scala

@@ -0,0 +1,7 @@
+package ScalaBasic.ProxyDesignPattern2.rmi
+
+// https://www.bilibili.com/video/BV12N411R726?p=267&spm_id_from=pageDriver
+
+class MyRemoteClient {
+
+}

src/main/scala/ScalaBasic/ProxyDesignPattern2/rmi/MyRemoteImplement.scala

@@ -0,0 +1,24 @@
+package ScalaBasic.ProxyDesignPattern2.rmi
+
+import java.rmi.Naming
+import java.rmi.registry.LocateRegistry
+import java.rmi.server.UnicastRemoteObject
+
+// https://www.bilibili.com/video/BV12N411R726?p=267&spm_id_from=pageDriver
+
+class MyRemoteImplement extends UnicastRemoteObject with MyRemote {
+  override def sayHello(): String = {
+    "hello world :p :p :p"
+  }
+}
+
+object MyRemoteImplement{
+  def main(args: Array[String]): Unit = {
+    val service:MyRemote = new MyRemoteImplement()
+    // binding the service with port 9999
+    //LocateRegistry.createRegistry(9999)
+    //Naming.rebind("RemoteHello", service)
+    Naming.rebind("rmi://127.0.0.1:9999/RemoteHello", service)
+    println("remote service launch, at 127.0.0.1 with port 9999")
+  }
+}