企业官网建设流程全解析

import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.plaf.metal.MetalLookAndFeel;

/**

• 程序入口：设置系统外观并启动扫雷界面
  */
  public class MinesweeperApp {
  public static void main(String[] args) {
  try {
  UIManager.setLookAndFeel(new MetalLookAndFeel());
  } catch (Exception e) {
  e.printStackTrace();
  }
  SwingUtilities.invokeLater(() -> new MinesweeperUI().setVisible(true));
  }
  }
  三、项目三：星际射击游戏
  3.1 需求分析
  在扫雷的回合制基础上，升级为 实时动作游戏：玩家控制飞船，自动/手动发射子弹，消灭下落的敌人，支持粒子爆炸特效、暂停、难度梯度。

3.2 架构设计
采用 双 Timer 架构：

逻辑 Timer（16ms）：更新实体位置、碰撞检测、生成敌人
渲染 Timer（16ms）：触发 repaint()，与逻辑解耦
实体采用 抽象基类 + 匿名内部类 实现多态绘制。

3.3 程序界面
屏幕截图 2026-07-02 230114

屏幕截图 2026-07-02 230027

屏幕截图 2026-07-02 230012

3.4 完整代码
GameEntity.java
import java.awt.*;
import java.io.Serializable;

/**

• 游戏实体基类：玩家、敌人、子弹都继承此类
  */
  public abstract class GameEntity implements Serializable {
  private static final long serialVersionUID = 1L;

  protected double x, y;
  protected int width, height;
  protected double speedX, speedY;
  protected boolean alive = true;
  protected Color color;
  protected String type;

  public GameEntity(double x, double y, int width, int height, double speedX, double speedY, Color color, String type) {
  this.x = x;
  this.y = y;
  this.width = width;
  this.height = height;
  this.speedX = speedX;
  this.speedY = speedY;
  this.color = color;
  this.type = type;
  }

  public void update() {
  x += speedX;
  y += speedY;
  }

  public Rectangle getBounds() {
  return new Rectangle((int)x, (int)y, width, height);
  }

  public boolean intersects(GameEntity other) {
  return getBounds().intersects(other.getBounds());
  }

  public abstract void draw(Graphics2D g2d);

  public double getX() { return x; }
  public double getY() { return y; }
  public int getWidth() { return width; }
  public int getHeight() { return height; }
  public boolean isAlive() { return alive; }
  public void setAlive(boolean alive) { this.alive = alive; }
  public String getType() { return type; }
  public void setX(double x) { this.x = x; }
  public void setY(double y) { this.y = y; }
  public void setSpeedX(double speedX) { this.speedX = speedX; }
  public void setSpeedY(double speedY) { this.speedY = speedY; }
  }
  ShootingGame.java
  import java.awt.*;
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Random;

/**

• 射击游戏核心：管理所有实体、碰撞检测、分数、难度、存档
  */
  public class ShootingGame implements Serializable {
  private static final long serialVersionUID = 1L;

  public enum Difficulty { EASY, MEDIUM, HARD }

  private GameEntity player;
  private int playerLives = 3;
  private int maxLives = 3;

  private List enemies;
  private List bullets;
  private List particles;

  private boolean running = false;
  private boolean paused = false;
  private boolean gameOver = false;
  private int score = 0;
  private int killCount = 0;
  private int shotCount = 0;
  private int difficulty = 1;
  private String difficultyName = “简单”;

  private transient long startTime;
  private int elapsedTime = 0;

  private int enemySpawnTimer = 0;
  private int enemySpawnInterval = 60;
  private int enemySpeedBase = 2;
  private Random random = new Random();

  private int width = 600;
  private int height = 700;

  public void init(int width, int height, Difficulty diff) {
  this.width = width;
  this.height = height;
  this.difficulty = diff.ordinal() + 1;
  this.difficultyName = diff.name().equals(“EASY”) ? “简单” : diff.name().equals(“MEDIUM”) ? “中等” : “困难”;

  switch (diff) { case EASY: enemySpawnInterval = 80; enemySpeedBase = 1; maxLives = 5; break; case MEDIUM: enemySpawnInterval = 50; enemySpeedBase = 2; maxLives = 3; break; case HARD: enemySpawnInterval = 30; enemySpeedBase = 3; maxLives = 2; break; } playerLives = maxLives; score = 0; killCount = 0; shotCount = 0; elapsedTime = 0; gameOver = false; paused = false; player = new GameEntity(width / 2 - 20, height - 80, 40, 40, 0, 0, new Color(50, 130, 220), "player") { @Override public void draw(Graphics2D g2d) { g2d.setColor(color); int[] xs = {(int)x + width/2, (int)x, (int)x + width}; int[] ys = {(int)y, (int)y + height, (int)y + height}; g2d.fillPolygon(xs, ys, 3); g2d.setColor(Color.CYAN); g2d.fillOval((int)x + 15, (int)y + 20, 10, 10); } }; enemies = new ArrayList<>(); bullets = new ArrayList<>(); particles = new ArrayList<>(); running = true; startTime = System.currentTimeMillis();

  }

  public void update() {
  if (!running || paused || gameOver) return;

  elapsedTime = (int)((System.currentTimeMillis() - startTime) / 1000); player.update(); if (player.getX() < 0) player.setX(0); if (player.getX() > width - player.getWidth()) player.setX(width - player.getWidth()); enemySpawnTimer++; if (enemySpawnTimer >= enemySpawnInterval) { enemySpawnTimer = 0; spawnEnemy(); } Iterator<GameEntity> bit = bullets.iterator(); while (bit.hasNext()) { GameEntity b = bit.next(); b.update(); if (b.getY() < -10) b.setAlive(false); } Iterator<GameEntity> eit = enemies.iterator(); while (eit.hasNext()) { GameEntity e = eit.next(); e.update(); if (e.getY() > height) { e.setAlive(false); playerLives--; createExplosion(e.getX() + e.getWidth()/2, e.getY() + e.getHeight(), Color.RED); if (playerLives <= 0) { gameOver = true; running = false; } } } Iterator<GameEntity> pit = particles.iterator(); while (pit.hasNext()) { GameEntity p = pit.next(); p.update(); if (p.getY() > p.getY() + 50 || !p.isAlive()) pit.remove(); } for (GameEntity b : bullets) { if (!b.isAlive()) continue; for (GameEntity e : enemies) { if (!e.isAlive()) continue; if (b.intersects(e)) { b.setAlive(false); e.setAlive(false); score += 10; killCount++; createExplosion(e.getX() + e.getWidth()/2, e.getY() + e.getHeight()/2, e.color); break; } } } for (GameEntity e : enemies) { if (!e.isAlive()) continue; if (e.intersects(player)) { e.setAlive(false); playerLives--; createExplosion(player.getX() + 20, player.getY(), Color.ORANGE); if (playerLives <= 0) { gameOver = true; running = false; } } } bullets.removeIf(b -> !b.isAlive()); enemies.removeIf(e -> !e.isAlive());

  }

  private void spawnEnemy() {
  int w = 30 + random.nextInt(20);
  int h = 30 + random.nextInt(20);
  int ex = random.nextInt(width - w);
  int speed = enemySpeedBase + random.nextInt(2);
  Color[] colors = {Color.RED, Color.MAGENTA, Color.ORANGE, new Color(200, 50, 50)};
  Color c = colors[random.nextInt(colors.length)];

  GameEntity enemy = new GameEntity(ex, -h, w, h, 0, speed, c, "enemy") { @Override public void draw(Graphics2D g2d) { g2d.setColor(color); g2d.fillOval((int)x, (int)y, width, height); g2d.setColor(Color.WHITE); g2d.fillOval((int)x + 5, (int)y + 5, width - 10, height / 3); } }; enemies.add(enemy);

  }

  public void shoot() {
  if (!running || paused || gameOver) return;
  shotCount++;
  GameEntity bullet = new GameEntity(
  player.getX() + player.getWidth()/2 - 3,
  player.getY() - 10,
  6, 12, 0, -8, new Color(255, 220, 50), “bullet”
  ) {
  @Override
  public void draw(Graphics2D g2d) {
  g2d.setColor(color);
  g2d.fillRect((int)x, (int)y, width, height);
  g2d.setColor(Color.WHITE);
  g2d.fillRect((int)x + 2, (int)y, 2, 4);
  }
  };
  bullets.add(bullet);
  }

  public void movePlayer(int dx) {
  if (player != null) {
  player.setX(player.getX() + dx);
  }
  }

  public void setPlayerX(double x) {
  if (player != null) player.setX(x - player.getWidth()/2);
  }

  private void createExplosion(double cx, double cy, Color c) {
  for (int i = 0; i < 8; i++) {
  double angle = Math.random() * Math.PI * 2;
  double speed = 1 + Math.random() * 3;
  final double sx = Math.cos(angle) * speed;
  final double sy = Math.sin(angle) * speed;
  final Color pc = c;
  GameEntity p = new GameEntity(cx, cy, 4, 4, sx, sy, pc, “particle”) {
  private int life = 20;
  @Override
  public void update() {
  super.update();
  life–;
  if (life <= 0) setAlive(false);
  }
  @Override
  public void draw(Graphics2D g2d) {
  g2d.setColor(pc);
  g2d.fillOval((int)x, (int)y, width, height);
  }
  };
  particles.add§;
  }
  }

  public void draw(Graphics2D g2d) {
  g2d.setColor(new Color(20, 20, 40));
  g2d.fillRect(0, 0, width, height);

  g2d.setColor(new Color(255, 255, 255, 80)); for (int i = 0; i < 50; i++) { int sx = (i * 37 + 13) % width; int sy = (i * 23 + 7) % height; g2d.fillOval(sx, (sy + elapsedTime * 10) % height, 2, 2); } for (GameEntity p : particles) p.draw(g2d); for (GameEntity e : enemies) e.draw(g2d); for (GameEntity b : bullets) b.draw(g2d); if (player != null && playerLives > 0) player.draw(g2d); g2d.setColor(Color.WHITE); g2d.setFont(new Font("微软雅黑", Font.BOLD, 16)); g2d.drawString("分数: " + score, 15, 25); g2d.drawString("时间: " + elapsedTime + "秒", 150, 25); g2d.drawString("击杀: " + killCount, 280, 25); g2d.drawString("发射: " + shotCount, 400, 25); g2d.drawString("生命: ", 15, 50); for (int i = 0; i < maxLives; i++) { if (i < playerLives) { g2d.setColor(Color.RED); g2d.fillOval(60 + i * 20, 38, 12, 12); } else { g2d.setColor(Color.GRAY); g2d.drawOval(60 + i * 20, 38, 12, 12); } } g2d.setColor(Color.YELLOW); g2d.drawString("难度: " + difficultyName, width - 100, 25); if (gameOver) { g2d.setColor(new Color(0, 0, 0, 180)); g2d.fillRect(0, 0, width, height); g2d.setColor(Color.WHITE); g2d.setFont(new Font("微软雅黑", Font.BOLD, 40)); String msg = playerLives <= 0 ? "游戏结束" : "胜利"; int msgW = g2d.getFontMetrics().stringWidth(msg); g2d.drawString(msg, (width - msgW) / 2, height / 2 - 40); g2d.setFont(new Font("微软雅黑", Font.PLAIN, 20)); String info = "最终得分: " + score + " 击杀: " + killCount + " 用时: " + elapsedTime + "秒"; int infoW = g2d.getFontMetrics().stringWidth(info); g2d.drawString(info, (width - infoW) / 2, height / 2 + 10); g2d.setFont(new Font("微软雅黑", Font.PLAIN, 16)); String hint = "按 R 重新开始 或 空格 发射"; int hintW = g2d.getFontMetrics().stringWidth(hint); g2d.drawString(hint, (width - hintW) / 2, height / 2 + 50); } if (paused && !gameOver) { g2d.setColor(new Color(0, 0, 0, 120)); g2d.fillRect(0, 0, width, height); g2d.setColor(Color.YELLOW); g2d.setFont(new Font("微软雅黑", Font.BOLD, 36)); String msg = "暂 停"; int msgW = g2d.getFontMetrics().stringWidth(msg); g2d.drawString(msg, (width - msgW) / 2, height / 2); g2d.setFont(new Font("微软雅黑", Font.PLAIN, 16)); g2d.drawString("按 P 继续", (width - 60) / 2, height / 2 + 40); }

  }

  public boolean isRunning() { return running; }
  public boolean isPaused() { return paused; }
  public boolean isGameOver() { return gameOver; }
  public int getScore() { return score; }
  public int getKillCount() { return killCount; }
  public int getShotCount() { return shotCount; }
  public int getElapsedTime() { return elapsedTime; }
  public int getPlayerLives() { return playerLives; }
  public int getDifficulty() { return difficulty; }
  public String getDifficultyName() { return difficultyName; }
  public int getWidth() { return width; }
  public int getHeight() { return height; }

  public void setPaused(boolean paused) {
  this.paused = paused;
  if (!paused) {
  startTime = System.currentTimeMillis() - elapsedTime * 1000L;
  }
  }
  public void setRunning(boolean running) { this.running = running; }
  public void setGameOver(boolean gameOver) { this.gameOver = gameOver; }
  public void setScore(int score) { this.score = score; }
  public void setKillCount(int killCount) { this.killCount = killCount; }
  public void setShotCount(int shotCount) { this.shotCount = shotCount; }
  public void setElapsedTime(int elapsedTime) { this.elapsedTime = elapsedTime; }
  public void setPlayerLives(int playerLives) { this.playerLives = playerLives; }
  public void setDifficulty(int difficulty) { this.difficulty = difficulty; }
  public void setDifficultyName(String difficultyName) { this.difficultyName = difficultyName; }
  public void setStartTime(long startTime) { this.startTime = startTime; }

  public List getEnemies() { return enemies; }
  public List getBullets() { return bullets; }
  public List getParticles() { return particles; }
  public GameEntity getPlayer() { return player; }
  public void setPlayer(GameEntity player) { this.player = player; }
  public void setEnemies(List enemies) { this.enemies = enemies; }
  public void setBullets(List bullets) { this.bullets = bullets; }
  public void setParticles(List particles) { this.particles = particles; }
  public void setMaxLives(int maxLives) { this.maxLives = maxLives; }
  public int getMaxLives() { return maxLives; }
  public void setEnemySpawnInterval(int interval) { this.enemySpawnInterval = interval; }
  public void setEnemySpeedBase(int speed) { this.enemySpeedBase = speed; }
  public int getEnemySpawnInterval() { return enemySpawnInterval; }
  public int getEnemySpeedBase() { return enemySpeedBase; }
  }
  GameState.java（射击）
  import java.io.Serializable;
  import java.util.List;

/**

• 射击游戏存档状态
  */
  public class GameState implements Serializable {
  private static final long serialVersionUID = 1L;

  private List enemies, bullets, particles;
  private GameEntity player;
  private int playerLives, maxLives;
  private int score, killCount, shotCount, elapsedTime;
  private boolean running, paused, gameOver;
  private int difficulty, enemySpawnInterval, enemySpeedBase;
  private String difficultyName;
  private int width, height;

  public GameState(ShootingGame game) {
  this.enemies = game.getEnemies();
  this.bullets = game.getBullets();
  this.particles = game.getParticles();
  this.player = game.getPlayer();
  this.playerLives = game.getPlayerLives();
  this.maxLives = game.getMaxLives();
  this.score = game.getScore();
  this.killCount = game.getKillCount();
  this.shotCount = game.getShotCount();
  this.elapsedTime = game.getElapsedTime();
  this.running = game.isRunning();
  this.paused = game.isPaused();
  this.gameOver = game.isGameOver();
  this.difficulty = game.getDifficulty();
  this.difficultyName = game.getDifficultyName();
  this.enemySpawnInterval = game.getEnemySpawnInterval();
  this.enemySpeedBase = game.getEnemySpeedBase();
  this.width = game.getWidth();
  this.height = game.getHeight();
  }

  public List getEnemies() { return enemies; }
  public List getBullets() { return bullets; }
  public List getParticles() { return particles; }
  public GameEntity getPlayer() { return player; }
  public int getPlayerLives() { return playerLives; }
  public int getMaxLives() { return maxLives; }
  public int getScore() { return score; }