java代理

代理则是鉴于组合和继承的，其中存在把一个对象置于类中，调用该对象的方法。目的则是防止把更深层的方法暴露出来，就是类似与框架之中Controller调用Service，Service调用Dao，先注入，就相当于这里面引入一个对象，调用该对象的一些方法，可能框架就是基于这种代理的方式实现的吧！

package reuse.agency;public class SpaceShipDetegation {//太空站代理    private String name;    private SpaceShipControls spaceShipControls = new SpaceShipControls();    public SpaceShipDetegation(String name) {        this.name = name;    }    void up(int velocity) {// 入参为是速度        spaceShipControls.up(velocity);    }    void down(int velocity) {        spaceShipControls.down(velocity);    }    void left(int velocity) {        spaceShipControls.left(velocity);    }    void right(int velocity) {        spaceShipControls.right(velocity);    }    void forward(int velocity) {        spaceShipControls.forward(velocity);    }    void back(int velocity) {        spaceShipControls.back(velocity);    }    void turboboost() {//睿频加速        spaceShipControls.turboboost();    }    public static void main(String[] args) {        SpaceShipDetegation spaceShipDetegation = new SpaceShipDetegation("NSEA Protector");        spaceShipDetegation.forward(100);    }}