JAVA实战：一个桌球小游戏

在ecplise中新建一个JAVA项目

建立四个class分别对应游戏登陆界面，游戏界面，数据库操作，和一个开始类
代码如下
游戏类：

package 弹球游戏;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Random;
import javax.swing.JTextPane;
import javax.swing.Timer;/*----------------游戏界面，弹球游戏------------------*/
public class Game {private final int FRAME_X =500;private final int FRAME_Y =450;private final int FRAME_WIDTH =500;private final int FRAME_HIGH =500;private final int TABLE_WIDTH = 100;         //板子宽度private final int TABLE_HIGH =20 ;          //板子高度private final int BALL_SIZE =20;            //球的大小Random rand = new Random();private int TABLE_X=rand.nextInt(200);     //板子的坐标private int TABLE_Y=400;private int BALL_X=10;                      //小球的横坐标private int BALL_Y=10;                       //小球的纵坐标private int SPEED = 10;                     //小球横向速度Frame f = new Frame("弹球游戏");private Mycanvas draw = new Mycanvas();private boolean is_X = true;            //为true的时候横坐标+private boolean is_Y = true;            //为true的时候纵坐标+private int score =0;                   //游戏的得分private Panel p = new Panel();private JTextPane tex = new JTextPane();   //排行榜显示//定义键盘监听器KeyAdapter keyProcessor = new KeyAdapter() {public void keyPressed(KeyEvent e) {if(e.getKeyCode()==KeyEvent.VK_LEFT&&TABLE_X>0) {TABLE_X -=10;}if(e.getKeyCode()==KeyEvent.VK_RIGHT&&TABLE_X<370){TABLE_X +=10;}if(e.getKeyCode()==KeyEvent.VK_UP&&TABLE_Y>0) {TABLE_Y -=10;}if(e.getKeyCode()==KeyEvent.VK_DOWN&&TABLE_Y<430) {TABLE_Y +=10;}}};//定义事件监听器ActionListener task = new ActionListener (){public void actionPerformed(ActionEvent e) {if(BALL_X>FRAME_X||BALL_Y>FRAME_Y&&BALL_Y>TABLE_Y-15) {try {DataBaseLoding d = new DataBaseLoding();d.initParam("mysql.ini");d.insertScore(score);} catch (Exception e1) {e1.printStackTrace();}System.out.println("结束了");timer.stop();}if(is_X) {BALL_X +=10;}else {BALL_X -=10;}if(BALL_X>440){is_X=false; }if(BALL_X<10) {is_X=true;}if(BALL_Y<0) {is_Y =true;}if(is_Y) {BALL_Y+=10;}else {BALL_Y-=10;}if(BALL_Y==TABLE_Y-10&&BALL_X>TABLE_X&&BALL_X<TABLE_X+100) {is_Y=false;}score++;draw.repaint();}};Timer timer = new Timer(100,task);public void text() {Font f = new Font("排行榜的字体",Font.ITALIC,25);tex.setFont(f);String first ="名次"+"\t"+"\t"+"分数"+"\r";try {DataBaseLoding d = new DataBaseLoding();d.initParam("mysql.ini");first +=d.select();} catch (Exception e1) {e1.printStackTrace();}tex.setText(first);p.add(tex);}public void init() {f.add(draw);text();f.add(p, BorderLayout.EAST);//长800，高500f.setBounds(FRAME_X, FRAME_Y, FRAME_WIDTH+350, FRAME_HIGH);//关闭窗口f.addWindowListener(new WindowAdapter() {                                    //添加窗口监听器public void windowClosing(WindowEvent e) {try {DataBaseLoding d = new DataBaseLoding();d.initParam("mysql.ini");d.insertScore(score);} catch (Exception e1) {// TODO Auto-generated catch blocke1.printStackTrace();}System.exit(0);}});f.addKeyListener(keyProcessor);                                             //添加键盘监听器draw.addKeyListener(keyProcessor);//画布长500，高500draw.setPreferredSize(new Dimension(FRAME_WIDTH,FRAME_HIGH));timer.start();f.setVisible(true);}class Mycanvas extends Canvas{public void paint(Graphics g) {g.setColor(new Color(0, 0, 0));g.drawLine(0, FRAME_Y, FRAME_X-20, FRAME_Y);g.drawLine(FRAME_X-25, 0, FRAME_X-25, FRAME_Y);g.drawLine(0, 0, 0, FRAME_Y);g.setColor(new Color(0,0,0));g.fillRect(TABLE_X,TABLE_Y , TABLE_WIDTH, TABLE_HIGH);g.setColor(new Color(255,175,175));g.fillRect(BALL_X, BALL_Y, BALL_SIZE, BALL_SIZE);Font font = new Font("分数",10,20);g.setFont(font);g.drawString("分数："+score, 380, 20);     }}
}

登陆类：输入一个名字，成功后就直接开始游戏

package 弹球游戏;import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;/*-----------------登陆界面,输入名字--------------------*/
public class Langding {private final int FRAME_X =500;private final int FRAME_Y =450;private final int FRAME_WIDTH =500;private final int FRAME_HIGH =500;private JFrame f;private JButton ok;private JPanel p;private TextField name;private TextField pass;private Game g;private int score=0;/*-------------暂时还没用到这个*///private String PASS_WORD ="";private String NAME_WORD ="";public void init() throws Exception {f = new JFrame("登陆窗口");p = new JPanel() {protected void paintComponent(Graphics g) {ImageIcon icon = new ImageIcon("lib/01.png");Image img = icon.getImage();Image img1 = img.getScaledInstance(FRAME_WIDTH+300, FRAME_HIGH,Image.SCALE_DEFAULT);icon.setImage(img1);g.drawImage(img, 0, 0, icon.getIconWidth(),icon.getIconHeight(), icon.getImageObserver());}};f.add(p);ok =  new JButton("登陆");name = new TextField(20);//pass = new TextField(20);p.add(name);//p.add(pass);ok.setPreferredSize(new Dimension(100, 100));p.add(ok);//点击按钮的事件Action go = new AbstractAction() {public void actionPerformed(ActionEvent e) {    DataBaseLoding d = new DataBaseLoding();try {//获得输入的名字NAME_WORD = name.getText();//将名字导入到数据库d.initParam("mysql.ini");d.insertName(NAME_WORD);} catch (Exception e1) {// TODO Auto-generated catch blocke1.printStackTrace();}System.out.println("玩家名字是"+name.getText());//游戏开始g = new Game();g.init();}};ok.addActionListener(go);f.setBounds(FRAME_X, FRAME_Y, FRAME_WIDTH+300, FRAME_HIGH);f.add(p);f.setVisible(true);}public static void main(String[] args) throws Exception {Langding l = new Langding();l.init();}
}

数据库操作类：包含两个方法，插入名字和修改分数，用的数据库分数默认是-1

package 弹球游戏;import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Properties;/*------------------------ 数据库的连接和插入名字，修改分数的方法--------------------------------------*/
public class DataBaseLoding {private String driver;private String url;private String user;private String pass;//登陆数据库public void initParam(String paramFile) throws Exception {Properties props = new Properties();props.load(new FileInputStream(paramFile));driver = props.getProperty("driver");url = props.getProperty("url");user = props.getProperty("user");pass = props.getProperty("pass");}//将名字插入到数据库中public int insertName(String Name) throws Exception {Class.forName(driver);String sql ="insert into 弹球游戏(name) values("+"'"+Name+"'"+")"+";";try (Connection conn =DriverManager.getConnection(url,user,pass);Statement stmt =conn.createStatement();){System.out.println(Name);return stmt.executeUpdate(sql);}}//把score插到主键为name的那一行public int insertScore(int Score) throws Exception {Class.forName(driver);String sql ="update 弹球游戏 set score ="+Score+" where score = -1"+";";try (Connection conn =DriverManager.getConnection(url,user,pass);Statement stmt =conn.createStatement();){System.out.println(Score);return stmt.executeUpdate(sql);}}public String select() throws Exception{Class.forName(driver);String sql ="select * from 弹球游戏  ORDER BY score DESC ;";String result ="";try (Connection conn =DriverManager.getConnection(url,user,pass);Statement stmt =conn.createStatement();ResultSet rs =stmt.executeQuery(sql);){int i=1;while(rs.next()) {result +="第"+i+"名"+ rs.getString(1)+"\t"+"\t"+rs.getInt(2)+"\r";i++;if(i==11) {break;}}return result;}}
}

主类：

package 弹球游戏;
public class Begain {public static void main(String[] args) throws Exception {Langding l = new Langding();l.init()package 弹球游戏;}}

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JAVA实战：一个桌球小游戏

在ecplise中新建一个JAVA项目

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