状态模式

Author: mirsfang

README.md

@@ -33,6 +33,7 @@
 * 适配器模式
 * 单例模式
 * 命令模式
+* 状态模式
 
 
 

src/action/state/StateMain.java

@@ -0,0 +1,25 @@
+package action.state;/**
+ * Created by MirsFang on 2017/3/16.
+ */
+
+import action.state.absState.Context;
+import action.state.allState.Close;
+import action.state.allState.Run;
+
+/***
+ *作者：MirsFang    
+ *模式：状态模式
+ *时间：2017/03/16/下午12:36  
+ *备注  执行类
+ ***/
+
+public class StateMain {
+    public static void main(String[] args) {
+        Context context=new Context();
+        context.setNowState(new Run());
+        context.open();
+        context.close();
+        context.run();
+        context.stop();
+    }
+}

src/action/state/absState/Context.java

@@ -0,0 +1,52 @@
+package action.state.absState;/**
+ * Created by MirsFang on 2017/3/16.
+ */
+
+import action.state.allState.Close;
+import action.state.allState.Open;
+import action.state.allState.Run;
+import action.state.allState.Stop;
+
+/***
+ *作者：MirsFang    
+ *模式：状态模式
+ *时间：2017/03/16/下午12:14  
+ *备注  上下文环境
+ ***/
+
+public class Context {
+
+    //定义出所有的电梯状态  用在setState();
+    public static final Open open=new Open();
+    public static final Close close=new Close();
+    public static final Run run=new Run();
+    public static final Stop stop=new Stop();
+
+    //当前的状态
+    private State nowState;
+
+    public void setNowState(State nowState) {
+        this.nowState = nowState;
+        this.nowState.setContext(this);
+    }
+
+    public State getNowState() {
+        return nowState;
+    }
+
+    public void open(){
+        nowState.open();
+    }
+
+    public void close(){
+        nowState.close();
+    }
+
+    public void run(){
+        nowState.run();
+    }
+
+    public void stop(){
+        nowState.stop();
+    }
+}

src/action/state/absState/State.java

@@ -0,0 +1,28 @@
+package action.state.absState;/**
+ * Created by MirsFang on 2017/3/16.
+ */
+
+/***
+ *作者：MirsFang    
+ *模式：状态模式
+ *时间：2017/03/16/下午12:13  
+ *备注  抽象状态角色
+ ***/
+
+public abstract class State {
+    protected Context context;
+
+    //设置状态
+    public void setContext(Context context) {
+        this.context = context;
+    }
+
+    //电梯门开启的动作
+    public abstract void open();
+    //电梯门关闭的动作
+    public abstract void close();
+    //电梯运行起来
+    public abstract void run();
+    //电梯停下来
+    public abstract void stop();
+}

src/action/state/allState/Close.java

@@ -0,0 +1,49 @@
+package action.state.allState;/**
+ * Created by MirsFang on 2017/3/16.
+ */
+
+import action.state.absState.Context;
+import action.state.absState.State;
+
+/***
+ *作者：MirsFang
+ *模式：状态模式
+ *时间：2017/03/16/下午12:23
+ *备注  关闭状态
+ ***/
+
+public class Close extends State {
+
+
+    @Override
+    public void open() {
+        //状态修改
+        context.setNowState(Context.open);
+        //委托执行
+        context.getNowState().open();
+    }
+
+    @Override
+    public void close() {
+       System.out.print("电梯门关闭");
+    }
+
+    //运行
+    @Override
+    public void run() {
+        //状态修改
+        context.setNowState(Context.run);
+        //委托执行
+        context.getNowState().run();
+    }
+
+    //停止
+    @Override
+    public void stop() {
+        //状态修改
+        context.setNowState(Context.stop);
+        //委托执行
+        context.getNowState().stop();
+
+    }
+}

src/action/state/allState/Open.java

@@ -0,0 +1,43 @@
+package action.state.allState;/**
+ * Created by MirsFang on 2017/3/16.
+ */
+
+import action.state.absState.Context;
+import action.state.absState.State;
+
+/***
+ *作者：MirsFang    
+ *模式：状态模式
+ *时间：2017/03/16/下午12:23  
+ *备注  打开状态
+ ***/
+
+public class Open extends State {
+
+
+    @Override
+    public void open() {
+        System.out.println("电梯门开启");
+    }
+
+    @Override
+    public void close() {
+        //状态修改
+        context.setNowState(Context.close);
+        //委托执行
+        context.getNowState().close();
+    }
+
+    //开着门不能跑
+    @Override
+    public void run() {
+
+    }
+
+    //开着门就是停止的
+    @Override
+    public void stop() {
+
+
+    }
+}

src/action/state/allState/Run.java

@@ -0,0 +1,41 @@
+package action.state.allState;/**
+ * Created by MirsFang on 2017/3/16.
+ */
+
+import action.state.absState.Context;
+import action.state.absState.State;
+
+/***
+ *作者：MirsFang
+ *模式：状态模式
+ *时间：2017/03/16/下午12:23
+ *备注  运行状态
+ ***/
+
+public class Run extends State {
+
+
+    //运行状态不糊开门
+    @Override
+    public void open() {
+        //状态修改
+    }
+
+    //运行状态门就是观者的
+    @Override
+    public void close() {
+
+    }
+
+    @Override
+    public void run() {
+        System.out.println("电梯正在运行");
+    }
+
+    //停止运行
+    @Override
+    public void stop() {
+        context.setNowState(Context.stop);
+        context.getNowState().stop();
+    }
+}

src/action/state/allState/Stop.java

@@ -0,0 +1,40 @@
+package action.state.allState;/**
+ * Created by MirsFang on 2017/3/16.
+ */
+
+import action.state.absState.Context;
+import action.state.absState.State;
+
+/***
+ *作者：MirsFang
+ *模式：状态模式
+ *时间：2017/03/16/下午12:23
+ *备注  停止状态
+ ***/
+
+public class Stop extends State {
+
+//停下来要开电梯门
+    @Override
+    public void open() {
+        context.setNowState(Context.open);
+        context.getNowState().open();
+    }
+
+
+    @Override
+    public void close() {
+
+    }
+
+    @Override
+    public void run() {
+        context.setNowState(Context.run);
+        context.getNowState().run();
+    }
+
+    @Override
+    public void stop() {
+        System.out.println("电梯停止了");
+    }
+}