@ApiOperation(value = "前端发送code给后端，这一步在授权那里必须要调") @GetMapping("/sendCode") //获取凭证校检接口 public JsonResult getLoginCode(String code) throws IOException, BizException { // 小程序登录接口 System.out.println(code+"1111"); String url = "https://api.weixin.qq.com/sns/jscode2session?appid=" + APPID + "&secret=" + APPSECRET + "&js_code=" + code + "&grant_type=authorization_code"; System.out.println(code); // java HTTP发送请求 HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection(); connection.setRequestMethod("GET"); connection.setConnectTimeout(50000); connection.setReadTimeout(50000); // 获取响应数据 InputStream inputStream = connection.getInputStream(); BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream)); StringBuilder response = new StringBuilder(); String line; while ((line = bufferedReader.readLine()) != null) { response.append(line); } System.out.println(response); bufferedReader.close(); inputStream.close(); connection.disconnect(); // 解析响应数据，获取openid和session_key String openid = getJsonValue(response.toString(), "openid"); // String sessionKey = getJsonValue(response.toString(), "session_key"); // return openid + "," + sessionKey; HashMap map = new HashMap<String,String>(); map.put("openid",openid); // map.put("sessionKey",sessionKey); //这个时候应该把sessionKey和openid存在数据库 和对应的人的电话号码相绑定 User user = userService.getUserByOpenid(openid); // user.setSessionKey(sessionKey); //现在这个user里面 两种情况 第一种认证过后的什么都有 第二种 有userid 有openid没有电话号码 return ResponseUtil.success("授权成功，已经可以开始认证了！",map); } /** * 获取json格式数据中某个字段的值 */ private String getJsonValue(String json, String key) { int index = json.indexOf(key); if (index < 0) { return null; } String value = json.substring(index + key.length() + 3); int endIndex = value.indexOf("\""); return value.substring(0, endIndex); }我这段接口为什么前端传入code提示报错：没有传入code呢

&secret=" SECRET "&js_code=" + code + "&grant_type=authorization_code"; // 发送请求，获取 openid 和 session_key String result = HttpUtils.get(url); Map<String, Object> map = JSONObject.parseObject(result, Map.class); String openid = (String) map.get("openid"); String sessionKey = (String) map.get("session_key"); logger.info("登录成功，openid：{}", openid); // 封装返回结果 LoginResultDTO loginResultDTO = new LoginResultDTO(); loginResultDTO.setOpenid(openid); loginResultDTO.setSessionKey(sessionKey); return JsonResult.ok(loginResultDTO); }

请问这段代码是做什么的？

相关问题

Java小游戏飞机大战源代码 要有登录注册功能

好的，以下是一个简单的Java小游戏飞机大战的实现思路和部分关键代码，包含登录注册功能，供您参考：

1. 确定需求：游戏需要支持注册、登录、游戏主界面、游戏结束等功能。

2. 设计数据库：根据需求设计数据库，包括用户表、游戏记录表等。

3. 编写后端代码：使用Java语言和Spring框架编写后端代码，包括数据访问层、业务逻辑层和控制层。

// 数据访问层
@Repository
public interface UserRepository extends JpaRepository<User, Long> {
    User findByUsername(String username);
}

@Repository
public interface GameRecordRepository extends JpaRepository<GameRecord, Long> {

}

// 业务逻辑层
@Service
public class UserService {
    @Autowired
    private UserRepository userRepository;

    public User register(User user) {
        return userRepository.save(user);
    }

    public User login(String username, String password) {
        User user = userRepository.findByUsername(username);
        if (user == null || !user.getPassword().equals(password)) {
            return null;
        }
        return user;
    }
}

@Service
public class GameRecordService {
    @Autowired
    private GameRecordRepository gameRecordRepository;

    public void save(GameRecord gameRecord) {
        gameRecordRepository.save(gameRecord);
    }

    public List<GameRecord> getGameRecordsByUserId(Long userId) {
        return gameRecordRepository.findAllByUserId(userId);
    }
}

// 控制层
@RestController
@RequestMapping("/api/users")
public class UserController {
    @Autowired
    private UserService userService;

    @PostMapping("")
    public User register(@RequestBody User user) {
        return userService.register(user);
    }

    @PostMapping("/login")
    public User login(@RequestParam String username, @RequestParam String password) {
        return userService.login(username, password);
    }
}

@RestController
@RequestMapping("/api/gameRecords")
public class GameRecordController {
    @Autowired
    private GameRecordService gameRecordService;

    @PostMapping("")
    public void save(@RequestBody GameRecord gameRecord) {
        gameRecordService.save(gameRecord);
    }

    @GetMapping("/{userId}")
    public List<GameRecord> getGameRecordsByUserId(@PathVariable Long userId) {
        return gameRecordService.getGameRecordsByUserId(userId);
    }
}

4. 编写前端页面：使用HTML、CSS和JavaScript等技术编写前端页面，包括登录页面、注册页面、游戏主界面、游戏结束页面等。

<!-- 登录页面 -->
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
    <form action="/api/users/login" method="post">
        <label for="username">用户名：</label>
        <input type="text" id="username" name="username"><br>
        <label for="password">密码：</label>
        <input type="password" id="password" name="password"><br>
        <button type="submit">登录</button>
    </form>
</body>
</html>

<!-- 注册页面 -->
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>注册</title>
</head>
<body>
    <form action="/api/users" method="post">
        <label for="username">用户名：</label>
        <input type="text" id="username" name="username"><br>
        <label for="password">密码：</label>
        <input type="password" id="password" name="password"><br>
        <button type="submit">注册</button>
    </form>
</body>
</html>

<!-- 游戏主界面 -->
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>飞机大战</title>
    <style>
        #game-board {
            width: 600px;
            height: 800px;
            margin: 0 auto;
            border: 1px solid #000;
        }
    </style>
</head>
<body>
    <div id="game-board"></div>
    <script src="/js/game.js"></script>
</body>
</html>

<!-- 游戏结束页面 -->
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>游戏结束</title>
</head>
<body>
    <h1>游戏结束</h1>
    <p>您的得分是：{{ score }}</p>
    <form action="/api/gameRecords" method="post">
        <input type="hidden" name="userId" value="{{ userId }}">
        <input type="hidden" name="score" value="{{ score }}">
        <button type="submit">保存记录</button>
    </form>
    <a href="/game">重新开始</a>
</body>
</html>

5. 编写游戏代码：使用Java语言和Swing框架编写游戏代码，包括游戏主界面、游戏逻辑等。

public class GameBoard extends JPanel implements ActionListener {
    private Timer timer;
    private List<EnemyPlane> enemyPlanes;
    private PlayerPlane playerPlane;

    public GameBoard() {
        setPreferredSize(new Dimension(600, 800));
        setBackground(Color.WHITE);
        setFocusable(true);
        addKeyListener(new GameKeyListener());

        playerPlane = new PlayerPlane(300, 700);
        enemyPlanes = new ArrayList<>();
        for (int i = 0; i < 5; i++) {
            enemyPlanes.add(new EnemyPlane(50 + i * 100, 50));
        }

        timer = new Timer(10, this);
        timer.start();
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        update();
        repaint();
    }

    private void update() {
        playerPlane.move();
        for (EnemyPlane enemyPlane : enemyPlanes) {
            enemyPlane.move();
        }
        checkCollision();
    }

    private void checkCollision() {
        Rectangle playerRect = playerPlane.getRect();
        for (EnemyPlane enemyPlane : enemyPlanes) {
            Rectangle enemyRect = enemyPlane.getRect();
            if (playerRect.intersects(enemyRect)) {
                gameOver();
            }
        }
    }

    private void gameOver() {
        timer.stop();

        String userId = JOptionPane.showInputDialog("请输入您的用户名");
        int score = playerPlane.getScore();
        GameRecord gameRecord = new GameRecord(userId, score);
        HttpClient httpClient = HttpClient.newHttpClient();
        HttpRequest httpRequest = HttpRequest.newBuilder()
                .uri(URI.create("/api/gameRecords"))
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(new Gson().toJson(gameRecord)))
                .build();
        try {
            HttpResponse<String> httpResponse = httpClient.send(httpRequest, HttpResponse.BodyHandlers.ofString());
            if (httpResponse.statusCode() == 200) {
                String message = "游戏结束，您的得分是：" + score;
                JOptionPane.showMessageDialog(null, message);
            } else {
                JOptionPane.showMessageDialog(null, "保存游戏记录失败");
            }
        } catch (IOException | InterruptedException e) {
            JOptionPane.showMessageDialog(null, "保存游戏记录失败");
        }
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);

        playerPlane.draw(g);
        for (EnemyPlane enemyPlane : enemyPlanes) {
            enemyPlane.draw(g);
        }
    }

    private class GameKeyListener extends KeyAdapter {
        @Override
        public void keyPressed(KeyEvent e) {
            switch (e.getKeyCode()) {
                case KeyEvent.VK_LEFT:
                    playerPlane.setMoveLeft(true);
                    break;
                case KeyEvent.VK_RIGHT:
                    playerPlane.setMoveRight(true);
                    break;
                case KeyEvent.VK_UP:
                    playerPlane.setMoveUp(true);
                    break;
                case KeyEvent.VK_DOWN:
                    playerPlane.setMoveDown(true);
                    break;
                case KeyEvent.VK_SPACE:
                    playerPlane.fire();
                    break;
            }
        }

        @Override
        public void keyReleased(KeyEvent e) {
            switch (e.getKeyCode()) {
                case KeyEvent.VK_LEFT:
                    playerPlane.setMoveLeft(false);
                    break;
                case KeyEvent.VK_RIGHT:
                    playerPlane.setMoveRight(false);
                    break;
                case KeyEvent.VK_UP:
                    playerPlane.setMoveUp(false);
                    break;
                case KeyEvent.VK_DOWN:
                    playerPlane.setMoveDown(false);
                    break;
            }
        }
    }
}

以上是一个简单的Java小游戏飞机大战的实现思路和部分关键代码，供您参考。请注意，这只是一个简单的示例，实际项目中可能需要更多的功能和代码实现。

在vscode上使用spring boot框架搭建一个web评论系统，生成包括以下功能的一般的HTML文件代码：用户注册和登录功能，浏览、发布、更新、删除、检索、评论和回复功能、分页和排序功能、通知功能

首先，你需要安装 VS Code 和 Java 开发环境。然后，你可以按照以下步骤进行操作：

1. 在 VS Code 中安装 Spring Boot 插件。
2. 创建一个 Spring Boot 项目，选择其中包含 Web 和 Thymeleaf 依赖。
3. 创建一个包含用户实体的数据模型。
4. 创建一个包含用户注册和登录功能的控制器。
5. 创建一个包含浏览、发布、更新、删除、检索、评论和回复功能的控制器。
6. 创建一个包含分页和排序功能的控制器。
7. 创建一个包含通知功能的控制器。
8. 创建一个包含 HTML 文件的视图模板。
9. 在 HTML 文件中添加必要的表单和按钮等元素，以实现上述功能。

下面是一些示例代码，帮助你开始构建你的评论系统。

用户实体：

@Entity
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private String username;
    private String password;
    // 省略构造器和 getter/setter 方法
}

用户控制器：

@Controller
public class UserController {
    @Autowired
    private UserRepository userRepository;

    @GetMapping("/register")
    public String registerForm(Model model) {
        model.addAttribute("user", new User());
        return "register";
    }

    @PostMapping("/register")
    public String registerSubmit(@ModelAttribute User user) {
        userRepository.save(user);
        return "redirect:/login";
    }

    @GetMapping("/login")
    public String loginForm() {
        return "login";
    }

    @PostMapping("/login")
    public String loginSubmit(@RequestParam String username, @RequestParam String password) {
        User user = userRepository.findByUsername(username);
        if (user != null && user.getPassword().equals(password)) {
            return "redirect:/";
        } else {
            return "login";
        }
    }
}

评论控制器：

@Controller
public class CommentController {
    @Autowired
    private CommentRepository commentRepository;

    @GetMapping("/")
    public String index(Model model) {
        model.addAttribute("comments", commentRepository.findAll());
        model.addAttribute("comment", new Comment());
        return "index";
    }

    @PostMapping("/comment")
    public String addComment(@ModelAttribute Comment comment) {
        commentRepository.save(comment);
        return "redirect:/";
    }

    @PostMapping("/reply")
    public String addReply(@RequestParam Long parentId, @ModelAttribute Comment reply) {
        Comment parent = commentRepository.findById(parentId).orElse(null);
        if (parent != null) {
            reply.setParent(parent);
            commentRepository.save(reply);
        }
        return "redirect:/";
    }

    @GetMapping("/comment/{id}")
    public String editForm(@PathVariable Long id, Model model) {
        Comment comment = commentRepository.findById(id).orElse(null);
        if (comment != null) {
            model.addAttribute("comment", comment);
            return "edit";
        } else {
            return "redirect:/";
        }
    }

    @PostMapping("/comment/{id}")
    public String editSubmit(@PathVariable Long id, @ModelAttribute Comment comment) {
        Comment oldComment = commentRepository.findById(id).orElse(null);
        if (oldComment != null) {
            oldComment.setContent(comment.getContent());
            commentRepository.save(oldComment);
        }
        return "redirect:/";
    }

    @PostMapping("/comment/{id}/delete")
    public String deleteComment(@PathVariable Long id) {
        commentRepository.deleteById(id);
        return "redirect:/";
    }
}

分页控制器：

@Controller
public class PageController {
    @Autowired
    private CommentRepository commentRepository;

    @GetMapping("/page/{page}")
    public String index(@PathVariable int page, Model model) {
        int size = 10;
        Pageable pageable = PageRequest.of(page, size, Sort.by("createdAt").descending());
        Page<Comment> comments = commentRepository.findAll(pageable);
        model.addAttribute("comments", comments.getContent());
        model.addAttribute("currentPage", page);
        model.addAttribute("totalPages", comments.getTotalPages());
        return "index";
    }
}

通知控制器：

@Controller
public class NotificationController {
    @Autowired
    private NotificationRepository notificationRepository;

    @GetMapping("/notifications")
    public String index(Model model) {
        model.addAttribute("notifications", notificationRepository.findAll());
        return "notifications";
    }

    @PostMapping("/notifications")
    public String addNotification(@RequestParam String message) {
        Notification notification = new Notification();
        notification.setMessage(message);
        notificationRepository.save(notification);
        return "redirect:/notifications";
    }
}

HTML 文件模板：

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Comments</title>
</head>
<body>
    <h1>Comments</h1>
    <form th:action="@{/comment}" method="post" th:object="${comment}">
        <p><textarea name="content" th:field="*{content}"></textarea></p>
        <p><button type="submit">Comment</button></p>
    </form>
    <hr>
    <div th:each="comment : ${comments}">
        <p th:text="${comment.content}"></p>
        <p><a th:href="@{/comment/{id}(id=${comment.id})}">Edit</a> | <a th:href="@{/comment/{id}/delete(id=${comment.id})}" onclick="return confirm('Are you sure?')">Delete</a></p>
        <form th:action="@{/reply}" method="post">
            <p><textarea name="content"></textarea></p>
            <p><button type="submit">Reply</button></p>
            <input type="hidden" name="parentId" th:value="${comment.id}">
        </form>
        <ul>
            <li th:each="reply : ${comment.replies}">
                <p th:text="${reply.content}"></p>
                <p><a th:href="@{/comment/{id}(id=${reply.id})}">Edit</a> | <a th:href="@{/comment/{id}/delete(id=${reply.id})}" onclick="return confirm('Are you sure?')">Delete</a></p>
            </li>
        </ul>
    </div>
    <hr>
    <div>
        <p><a th:href="@{/page/{page}(page=0)}">First</a> | <a th:href="@{/page/{page}(page=${currentPage - 1})}" th:if="${currentPage > 0}">Previous</a> | <a th:href="@{/page/{page}(page=${currentPage + 1})}" th:if="${currentPage + 1 < totalPages}">Next</a> | <a th:href="@{/page/{page}(page=${totalPages - 1})}">Last</a></p>
    </div>
    <hr>
    <form th:action="@{/notifications}" method="post">
        <p><textarea name="message"></textarea></p>
        <p><button type="submit">Send Notification</button></p>
    </form>
    <hr>
    <div th:each="notification : ${notifications}">
        <p th:text="${notification.message}"></p>
    </div>
</body>
</html>

注意，这只是一个基本的示例，你需要进一步完善和优化代码，以满足你的需求。