前一段时间刚写了一个c版本的 :grin: ，后面学了Java再来学习

看到有人发五子棋，翻出我多年前帮人写的大作业，刚试了一下还能跑

![](https://content.hackertalk.net/pub/xdy04p-eapW6Kn)

有需要的同学尽管拿去交作业 :joy: 

```java
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.ArrayList;
import java.util.Timer;
import java.util.TimerTask;


public class GreedySnake extends JFrame {

    GamePanel panel = new GamePanel();
    /**
     * 键盘监听器
     */
    KeyBoardListener keyboardListener = new KeyBoardListener(panel);
    /**
     * 定时任务
     */
    RefreshTimerTask refreshTimerTask = new RefreshTimerTask(panel, keyboardListener);
    /**
     * 定时器
     */
    Timer refreshTimer = new Timer();

    GreedySnake() {
        setFocusable(true);
        setLayout(null);
        addKeyListener(keyboardListener);
        panel.setBorder(BorderFactory.createLineBorder(Color.black));
        panel.setBounds(0, 0, 490, 300);
        //延迟一秒后启动任务，每 30ms 执行一次
        refreshTimer.scheduleAtFixedRate(refreshTimerTask, 1000, 30);
        add(panel);
    }

    public static void main(String[] args) {
        GreedySnake frame = new GreedySnake();
        frame.setTitle("贪吃蛇 (w: 加速，s: 减速)");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(496, 300);
        frame.setResizable(false);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
}

/**
 * 每 30ms 执行的任务操作，在 run() 里
 */
class RefreshTimerTask extends TimerTask {
    GamePanel panel;
    KeyBoardListener keyboardlistener;
    int count = 24;

    RefreshTimerTask(GamePanel panel, KeyBoardListener keyboardlistener) {
        this.panel = panel;
        this.keyboardlistener = keyboardlistener;
    }

    public void run() {
        if (panel.snake.state) {
            count -= panel.snake.speed;
            if (count <= 0) {
                if (!keyboardlistener.pause) {
                    panel.draw();
                    keyboardlistener.judge = true;
                }
                count = 24;
            }
        } else {
            panel.restart();
        }
    }
}

class KeyBoardListener extends KeyAdapter {
    GamePanel panel;
    boolean judge;
    boolean pause;

    KeyBoardListener(GamePanel panel) {
        this.panel = panel;
    }

    public void keyPressed(KeyEvent e) {
        int n = e.getKeyCode();
        if (n == KeyEvent.VK_ESCAPE) {
            System.exit(0);
        }
        if (n == KeyEvent.VK_SPACE) {
            pause = !pause;
        } else if (judge) {
            if (n == KeyEvent.VK_UP) {
                panel.snake.control(0);
            } else if (n == KeyEvent.VK_DOWN) {
                panel.snake.control(2);
            } else if (n == KeyEvent.VK_RIGHT) {
                panel.snake.control(1);
            } else if (n == KeyEvent.VK_LEFT) {
                panel.snake.control(3);
            } else if (n == KeyEvent.VK_W) {
                if (panel.snake.speed != 8)
                    panel.snake.speed += 2;
            } else if (n == KeyEvent.VK_S) {
                if (panel.snake.speed != 2)
                    panel.snake.speed -= 2;
            }
            judge = false;
        }
    }
}

class GamePanel extends JPanel {

    private static final long serialVersionUID = 1L;
    int[][] space = new int[27][49];
    Snake snake = new Snake();
    Food food = new Food();
    Wall[] wall = new Wall[4];

    GamePanel() {
        wall[0] = new Wall(0, 0, 0, 49);
        wall[1] = new Wall(0, 1, 1, 25);
        wall[2] = new Wall(0, 26, 0, 49);
        wall[3] = new Wall(48, 1, 1, 25);
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < wall[i].count; j++) {
                space[wall[i].walls[j].y][wall[i].walls[j].x] = wall[i].walls[j].type;
            }
        }
        drawSpace();
    }

    void drawSpace() {
        int i;
        for (i = 0; i < snake.length; i++) {
            space[snake.body.get(i).y][snake.body.get(i).x] = snake.body.get(i).type;
        }
        space[food.y][food.x] = 4;
    }

    /**
     * 根据当前数据绘制界面
     *
     * @param g
     */
    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        for (int i = 0; i < snake.length; i++) {
            g.fillRoundRect(snake.body.get(i).x * 10, snake.body.get(i).y * 10, 10, 10, 3, 3);
        }
        g.drawOval(food.x * 10, food.y * 10, 10, 10);
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < wall[i].count; j++) {
                g.drawRect(wall[i].walls[j].x * 10, wall[i].walls[j].y * 10, 10, 10);
                g.drawLine(wall[i].walls[j].x * 10, wall[i].walls[j].y * 10, wall[i].walls[j].x * 10 + 10, wall[i].walls[j].y * 10 + 10);
                g.drawLine(wall[i].walls[j].x * 10 + 10, wall[i].walls[j].y * 10, wall[i].walls[j].x * 10, wall[i].walls[j].y * 10 + 10);
            }
        }
    }

    void draw() {
        //蛇移动一格(坐标集合发生改变)
        int x = snake.body.get(snake.length - 1).x;
        int y = snake.body.get(snake.length - 1).y;
        space[y][x] = 0;
        snake.move();

        checkGameOver();
        repaint();
    }

    /**
     * 检测游戏是否结束，如果结束弹结束框
     */
    void checkGameOver() {
        if (space[snake.body.get(0).y][snake.body.get(0).x] == 4) {
            snake.grow();
            food.refresh();
            space[snake.body.get(0).y][snake.body.get(0).x] = 1;
            space[snake.body.get(snake.length - 1).y][snake.body.get(snake.length - 1).x] = 2;
            if (space[food.y][food.x] != 0) {
                food.refresh();
            }
            space[food.y][food.x] = 4;
        } else if (space[snake.body.get(0).y][snake.body.get(0).x] == 0) {
            space[snake.body.get(0).y][snake.body.get(0).x] = 1;
        } else {
            JOptionPane.showMessageDialog(null, "游戏结束");
            space[snake.body.get(0).y][snake.body.get(0).x] = 0;
            for (int m = 1; m < snake.length; m++) {
                space[snake.body.get(m).y][snake.body.get(m).y] = 0;
            }
            snake.state = false;
        }
    }

    /**
     * 清除数据，重新开始游戏
     */
    void restart() {
        snake.body.clear();
        Brick head = new Brick(1, 24, 15);
        Brick tail = new Brick(2, 22, 15);
        Brick body1 = new Brick(2, 23, 15);
        snake.direction = 1;
        snake.body.add(head);
        snake.body.add(body1);
        snake.body.add(tail);
        snake.length = 3;
        snake.state = true;
        snake.speed = 2;
        food.refresh();
        drawSpace();
        repaint();
    }
}

/**
 * 蛇本体对象
 */
class Snake {
    /**
     * 身体的坐标集合
     */
    ArrayList<Brick> body = new ArrayList<>();
    /**
     * 头部朝向，0 下, 1 右, 2 上, 3 左
     */
    int direction;
    boolean state = true;
    int length;
    /**
     * 移动速度
     */
    int speed = 4;

    Snake() {
        Brick head = new Brick(1, 24, 15);
        Brick tail = new Brick(2, 22, 15);
        Brick body1 = new Brick(2, 23, 15);
        direction = 1;
        body.add(head);
        body.add(body1);
        body.add(tail);
        length = 3;
    }

    void grow() {
        int x = 2 * body.get(length - 1).x - body.get(length - 2).x;
        int y = 2 * body.get(length - 1).y - body.get(length - 2).y;

        body.add(new Brick(2, x, y));
        ++length;
    }

    void move() {
        for (int i = length - 1; i > 0; i--) {
            body.get(i).x = body.get(i - 1).x;
            body.get(i).y = body.get(i - 1).y;
        }
        switch (direction) {
            case 0:
                body.get(0).y -= 1;
                break;
            case 1:
                body.get(0).x += 1;
                break;
            case 2:
                body.get(0).y += 1;
                break;
            case 3:
                body.get(0).x -= 1;
                break;
        }
    }

    /**
     * 键盘控制前进方向
     *
     * @param a
     */
    void control(int a) {
        int m = Math.abs(a - direction);
        if (m != 2 && m != 0) {
            direction = a;
        }
    }

}

/**
 * 界面上的一个点
 */
class Brick {
    int x;
    int y;
    int type;//1-蛇头，2-蛇身,3-边界,4-食物

    Brick(int a, int b, int c) {
        this.type = a;
        this.x = b;
        this.y = c;
    }
}

class Food extends Brick {
    Food() {
        super(4, 0, 0);
        refresh();
    }

    /**
     * 刷新食物坐标
     */
    void refresh() {
        this.x = (int) (Math.random() * 47 + 1);
        this.y = (int) (Math.random() * 25 + 1);
    }
}

/**
 * 游戏边界
 */
class Wall {
    Brick[] walls;
    int count;
    int direction;
    int x;
    int y;

    Wall(int a, int b, int c, int d) {
        this.x = a;
        this.y = b;
        this.direction = c;
        this.count = d;
        walls = new Brick[d];
        for (int i = 0; i < count; i++) {
            if (c == 0) {
                walls[i] = new Brick(3, (x + i), y);
            } else {
                walls[i] = new Brick(3, x, (y + i));
            }
        }
    }
}
```

Java 贪吃蛇

标识符

483DAB9E-B587-4DAE-936C-201F5BC4BCBA

备注

Error Domain=kCFStreamErrorDomainSSL Code=-9806"(null)" UserInfo=/NSLocalizedRecoverySuggestion=Errorcode definition can be found in Apple's SecureTransport.h}

请求信息

CONNECT m.m******(手动打码).pt:443 HTTP/1.1

请求头部

Host: m.m*******.ptConnection: keep-alive

发送请求头部

未发送

服务端开始响应

未响应

请求完成2024/04/26 10:11:40.529

 app无法登录，抓包数据。网页版可以登录，求分析求解

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拉取了rustbuster的v3.0.3版本文件, 二进制文件无法使用, 执行结果如下:

```bash
[root_cn@archlinux target]$ ./rustbuster-v3.0.3-x86_64-unknown-linux-gnu
./rustbuster-v3.0.3-x86_64-unknown-linux-gnu: error while loading shared libraries: libssl.so.1.1: cannot open shared object file: No such file or directory
```

拉取了main源码, 想自行尝试编译, 然后卡在了openssl, 以下为报错信息:

```rust
The following warnings were emitted during compilation:

warning: openssl-sys@0.9.47: build/expando.c:4:24: error: pasting "RUST_VERSION_OPENSSL_" and "(" does not give a valid preprocessing token
warning: openssl-sys@0.9.47:     4 | #define VERSION2(n, v) RUST_VERSION_##n##_##v
warning: openssl-sys@0.9.47:       |                        ^~~~~~~~~~~~~
warning: openssl-sys@0.9.47: build/expando.c:5:23: note: in expansion of macro ‘VERSION2’
warning: openssl-sys@0.9.47:     5 | #define VERSION(n, v) VERSION2(n, v)
warning: openssl-sys@0.9.47:       |                       ^~~~~~~~
warning: openssl-sys@0.9.47: build/expando.c:10:1: note: in expansion of macro ‘VERSION’
warning: openssl-sys@0.9.47:    10 | VERSION(OPENSSL, OPENSSL_VERSION_NUMBER)
warning: openssl-sys@0.9.47:       | ^~~~~~~

error: failed to run custom build command for `openssl-sys v0.9.47`

Caused by:
  process didn't exit successfully: `/mnt/d/work/file/rust/rustbuster/target/debug/build/openssl-sys-c5a482a9e0e49574/build-script-main` (exit status: 101)
  --- stdout
  cargo:rustc-cfg=const_fn
  cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR
  X86_64_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR unset
  cargo:rerun-if-env-changed=OPENSSL_LIB_DIR
  OPENSSL_LIB_DIR unset
  cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_INCLUDE_DIR
  X86_64_UNKNOWN_LINUX_GNU_OPENSSL_INCLUDE_DIR unset
  cargo:rerun-if-env-changed=OPENSSL_INCLUDE_DIR
  OPENSSL_INCLUDE_DIR unset
  cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_DIR
  X86_64_UNKNOWN_LINUX_GNU_OPENSSL_DIR unset
  cargo:rerun-if-env-changed=OPENSSL_DIR
  OPENSSL_DIR unset
  cargo:rustc-link-lib=ssl
  cargo:rustc-link-lib=crypto
  OPT_LEVEL = Some("0")
  TARGET = Some("x86_64-unknown-linux-gnu")
  HOST = Some("x86_64-unknown-linux-gnu")
  CC_x86_64-unknown-linux-gnu = None
  CC_x86_64_unknown_linux_gnu = None
  HOST_CC = None
  CC = None
  CFLAGS_x86_64-unknown-linux-gnu = None
  CFLAGS_x86_64_unknown_linux_gnu = None
  HOST_CFLAGS = None
  CFLAGS = None
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some("true")
  CARGO_CFG_TARGET_FEATURE = Some("fxsr,sse,sse2")
  running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-E" "build/expando.c"
  cargo:warning=build/expando.c:4:24: error: pasting "RUST_VERSION_OPENSSL_" and "(" does not give a valid preprocessing token
  cargo:warning=    4 | #define VERSION2(n, v) RUST_VERSION_##n##_##v
  cargo:warning=      |                        ^~~~~~~~~~~~~
  cargo:warning=build/expando.c:5:23: note: in expansion of macro ‘VERSION2’
  cargo:warning=    5 | #define VERSION(n, v) VERSION2(n, v)
  cargo:warning=      |                       ^~~~~~~~
  cargo:warning=build/expando.c:10:1: note: in expansion of macro ‘VERSION’
  cargo:warning=   10 | VERSION(OPENSSL, OPENSSL_VERSION_NUMBER)
  cargo:warning=      | ^~~~~~~
  exit status: 1

  --- stderr
  thread 'main' panicked at /home/root_cn/.cargo/registry/src/mirrors.sjtug.sjtu.edu.cn-4f7dbcce21e258a2/openssl-sys-0.9.47/build/main.rs:126:13:

  Header expansion error:
  Error { kind: ToolExecError, message: "Command \"cc\" \"-O0\" \"-ffunction-sections\" \"-fdata-sections\" \"-fPIC\" \"-g\" \"-fno-omit-frame-pointer\" \"-m64\" \"-Wall\" \"-Wextra\" \"-E\" \"build/expando.c\" with args \"cc\" did not execute successfully (status code exit status: 1)." }

  Failed to find OpenSSL development headers.

  You can try fixing this setting the `OPENSSL_DIR` environment variable
  pointing to your OpenSSL installation or installing OpenSSL headers package
  specific to your distribution:

      # On Ubuntu
      sudo apt-get install libssl-dev
      # On Arch Linux
      sudo pacman -S openssl
      # On Fedora
      sudo dnf install openssl-devel

  See rust-openssl README for more information:

      https://github.com/sfackler/rust-openssl#linux

  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
```

经过检查openssl与rust均为最新版本, 

```bash
[root_cn@archlinux target]$ sudo pacman -S rust
[sudo] password for root_cn:
warning: rust-1:1.77.2-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Package (1)  Old Version  New Version  Net Change

extra/rust   1:1.77.2-1   1:1.77.2-1     0.00 MiB

Total Installed Size:  249.41 MiB
Net Upgrade Size:        0.00 MiB

:: Proceed with installation? [Y/n] n
[root_cn@archlinux target]$ sudo pacman -S openssl
warning: openssl-3.2.1-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Package (1)   Old Version  New Version  Net Change

core/openssl  3.2.1-1      3.2.1-1        0.00 MiB

Total Installed Size:  11.45 MiB
Net Upgrade Size:       0.00 MiB

:: Proceed with installation? [Y/n] n
```

在网上找了一下, 查到资料, 在[rust-openssl的issues](https://github.com/sfackler/rust-openssl/issues/1227)中提到类似报错, 得到解释如下:

> If you are cross compiling to MUSL, you either need to point openssl-sys to the location that you have a copy of OpenSSL cross compiled to MUSL, or tell it to build a copy of OpenSSL itself with the vendored feature.
>
>	如果你是交叉编译到MUSL，你需要将openssl-sys指向你有一个交叉编译到MUSL的OpenSSL副本的位置，或者告诉它用vendored特性构建一个OpenSSL本身的副本。

由于不会rust, 依靠关键词"交叉编译"+"cargo"搜索到了[cargo交叉编译rust程序](https://blog.csdn.net/tyc880616/article/details/104371502), 顺着找到文件:

```
[root_cn@archlinux .cargo]$ cat ~/.cargo/config
[source.crates-io]
replace-with = 'sjtu' # 指定使用下面哪个源，修改为source.后面的内容即可

# 中国科学技术大学
[source.ustc]
registry = "https://mirrors.ustc.edu.cn/crates.io-index"

# 上海交通大学
[source.sjtu]
registry = "https://mirrors.sjtug.sjtu.edu.cn/git/crates.io-index/"

# 清华大学
[source.tuna]
registry = "https://mirrors.tuna.tsinghua.edu.cn/git/crates.io-index.git"

# rustcc社区
[source.rustcc]
registry = "https://code.aliyun.com/rustcc/crates.io-index.git"
```

没有找到交叉编译的设置, 由于本人不会rust, 线索断了, 尝试向大家寻求一波帮助, 非常感谢阅读.



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sqlmap -u "xxxxx.com/#/login" --all  --delay 1 --batch --random-agent

[CRITICAL]can't establish SSL connection.

![](https://image.hackertalk.net/images/4a856cac-750c-4972-aa1f-4bf02f000394)

sqlmap -r win.txt --dbs

**

[CRITICAL] anti-CSRF token 'XSRF-TOKEN' can't be found 


**


