java-elevator.rar_elevator_java elevator_java-elevator

package main; import java.util.ArrayList; import java.util.Collections; import java.util.Iterator; import java.util.List; import lifter.Lifter; import lifter.Request; import java.awt.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class Main extends JFrame implements ActionListener {//function: main,entry of the program private static Container[] container;//容器用于建立图形时用 private static int row;//行，大楼的高度。 private static int column;//电梯的数目。 public static Request receiverequest;//外部发出的请求。 public static Lifter[] lifters;//生成的电梯，此时没有初始化。 public static Lifter choosedLifter = null;//选中的电梯，调度的时候用。 public class Request { public List<Integer> requestedFloor= (List)new java.util.ArrayList<Integer>(); ; public int floorSentRequest; public int upordown; } public static void main(String[] args) {//入口函数。 // Promt the user to enter the number of the lift String rowString = JOptionPane.showInputDialog(null, "请输入楼层数", "输入", JOptionPane.QUESTION_MESSAGE); // Promt the user to enter the number of the elevator String columnString = JOptionPane.showInputDialog(null, "请输入电梯数", "输入", JOptionPane.QUESTION_MESSAGE); try { row = Integer.parseInt(rowString);//从对话框中获得大楼的高度和电梯的数目。 column = Integer.parseInt(columnString); container = new Container[column + 2];//用于界面的布局。 for (int iii = 0; iii <column + 2; iii++) { container[iii] = new Container(); } Main m = new Main();//设置界面。 m.setTitle("欢迎使用电梯系统"); m.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); m.setVisible(true); container[0] = m.getContentPane(); container[0].setLayout(new GridLayout(1, column + 1, 5, 5)); container[1].setLayout(new GridLayout(row, 3, 5, 5)); container[0].add(container[1]); for(int ii = 2; ii < column + 2; ii ++){ container[ii].setLayout(new GridLayout(1, row, 5, 5)); container[0].add(container[ii]); } /*container[2].setLayout(new GridLayout(row, 2, 5, 5)); container[3].setLayout(new GridLayout(1, column, 5, 5)); container[0].add(container[1]); container[0].add(container[2]); container[0].add(container[3]);*/ // Set GirdLayout,gaps 5 between compontent horizontally and vertically // Add buttons to frame for (int i = row; i >= 1; i--) {//增加外部请求的按钮。 JLabel b = new JLabel(" " + i); container[1].add(b); //JButton a = new JButton("up " + i); //JButton a = new JButton("∧"); JButton a = new JButton("up " + i); a.addActionListener(m);//每个按钮的listener为m container[1].add(a); //JButton aa = new JButton("down " + i);//增加外部请求的按钮。 //JButton aa = new JButton("∨"); JButton aa = new JButton("down " + i); aa.addActionListener(m); container[1].add(aa); } lifters = new Lifter[column];//电梯的初始化。电梯的绘制也在这里进行。 for (int ii = 0; ii < column; ii++) { lifters[ii] = new Lifter(row, 0, 0, container[ii + 2]); } for (int i = 0; i < lifters.length; i++) { new Thread(lifters[i]).start();//让新绘制的电梯启动 } } catch (NumberFormatException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public synchronized void actionPerformed(ActionEvent e) {//外部请求得主响应函数。 String estr = e.getActionCommand(); if (estr.charAt(0) == 'u' ||estr.charAt(0) == 'd') { //if (estr.equals("up") == true ||estr.equals("down") == true) { receiverequest = new Request(); receiverequest.floorSentRequest = Integer.parseInt(estr .substring(estr.indexOf(" ") + 1)); if (estr.charAt(0) == 'u') //if (estr.equals("up") == true) receiverequest.upordown = 1; if (estr.charAt(0) == 'd') //if (estr.equals("down") == true) receiverequest.upordown = -1; choosedLifter = chooseLifter(lifters, receiverequest);// 从电梯中选者一部电梯,如果没有符合条件的电梯就返回空. if (choosedLifter != null) { // 如果返回为空,即当前没有电梯符合条件,当前请求就被忽视 choosedLifter.printDest();//输出destFloors的状态。 if ((receiverequest.upordown == 1&&choosedLifter.currentFloor<receiverequest.floorSentRequest)||(receiverequest.upordown==-1&&choosedLifter.currentFloor<receiverequest.floorSentRequest)) { choosedLifter.addDestUp(new Integer( receiverequest.floorSentRequest));// 往选中的电梯目标队列当中添加receiverequest.floorsentrequest choosedLifter.moveState=1; }else if((receiverequest.upordown==-1&&choosedLifter.currentFloor>receiverequest.floorSentRequest)||(receiverequest.upordown == 1&&choosedLifter.currentFloor>receiverequest.floorSentRequest)){ choosedLifter.addDestDown(new Integer(receiverequest.floorSentRequest)); choosedLifter.moveState=-1; } choosedLifter.printDest(); if (choosedLifter.flag == 1) { // 如果当前电梯可以开启的话就开启，不能开启意味着此电梯已经开启。对已经开启的电梯只需要让他跑完就可以了。 // flag为０的情况是：电梯已经开启，下一个请求还是选中了这部电梯， new Thread(choosedLifter).start(); choosedLifter.flag = 0; // 当电梯队列里的成员都被跑完后，flag会改为１ } } // System.out.println("5"); receiverequest = null; } } public static synchronized Lifter chooseLifter(Lifter[] l, Request receiverequest) {// 选者电梯 Lifter choosedLifter = null; int temp, temp2; if (receiverequest != null) { if (receiverequest.upordown == 1) {//向上的话就从该楼层以下的电梯里选者同向的电梯。 try { temp = Math.abs(receiverequest.floorSentRequest - l[0].currentFloor); for (int i = 0; i < l.length; i++) { if (l[i].currentFloor <= receiverequest.floorSentRequest && l[i].moveState == receiverequest.upordown) { if (temp >= Math .abs(receiverequest.floorSentRequest - l[i].currentFloor)) { choosedLifter = l[i]; temp = Math.abs(receiverequest.floorSentRequest - l[i].currentFloor); } } } } catch (Exception e) { } finally { if (choosedLifter == null) {//如果没有找到合适的就从静止的电梯中找离它最近的，再没有找到的话就忽视该请求 temp2 = Math.abs(receiverequest.floorSentRequest - l[0].currentFloor); for (int j = 0; j < l.length; j++) { if (l[j].moveState == 0) { if (temp2 >= Math .abs(receiverequest.floorSentRequest - l[j].currentFloor)) { choosedLifter = l[j]; temp2 = Math .abs(receiverequest.floorSentRequest - l[j].currentFloor); } } } } } } if (receiverequest.upordown == -1) {//向下的话就从该楼层以上的电梯里选者同向的电梯。 try { temp = Math.abs(l[0].currentFloor - receiverequest.floorSentRequest); for (int i = 0; i < l.length; i++) { if (l[i].currentFloor >= receiverequest.floorSentRequest && l[i].moveState == receiverequest.upordown) { if (temp >= l[i].currentFloor - receiverequest.floorSentRequest) { choosedLifter = l[i]; temp = l[i].currentFloor - receiverequest.floorSentRequest; } } } } catch (Exception e) { } finally { if (choosedLifter == null) {//如果没有找到合适的就从静止的电梯中找离它最近的。 temp2 = Math.abs(receiverequest.floorSentRequest - l[0].currentFloor); for (int j = 0; j < l.length; j++) { if (l[j].moveState == 0) { if (temp2 >= receiverequest.floorSentRequest - l[j].currentFloor) { choosedLifter = l[j]; temp2 = receiverequest.floorSentRequest - l[j].currentFloor; } } } } } } } return choosedLifter;//返