银行转账虚拟生成器app，手机银行转账截图生成器，余额虚拟生成器app【仅供学习娱乐】

银行转账虚拟生成器技术实现（Java版）

一、核心技术架构

// 基础数据模型
public class VirtualTransaction {
    private String transactionId;  // 交易流水号
    private String fromAccount;    // 转出账户
    private String toAccount;      // 转入账户  
    private double amount;         // 交易金额
    private Date timestamp;        // 交易时间
    // getters & setters...
}

二、核心功能实现

1. 交易记录生成

public class TransactionGenerator {
    public VirtualTransaction generateTransaction() {
        VirtualTransaction vt = new VirtualTransaction();
        vt.setTransactionId(generateUUID());
        vt.setFromAccount(generateAccountNumber());
        vt.setToAccount(generateAccountNumber());
        vt.setAmount(Math.round(Math.random()*10000)/100.0);
        vt.setTimestamp(new Date());
        return vt;
    }
    
    private String generateAccountNumber() {
        return "62" + String.format("%014d", 
               new Random().nextInt(1000000000));
    }
}

2. 截图生成模块

public class ScreenshotBuilder {
    public BufferedImage createTransferScreenshot(VirtualTransaction vt) {
        // 使用Java2D API构建图像
        BufferedImage image = new BufferedImage(400, 800, TYPE_INT_RGB);
        Graphics2D g = image.createGraphics();
        
        // 绘制银行UI框架
        g.drawRect(0, 0, 399, 799);
        g.setFont(new Font("微软雅黑", Font.BOLD, 16));
        g.drawString("虚拟银行转账凭证", 100, 50);
        
        // 填充交易数据
        g.setFont(new Font("宋体", Font.PLAIN, 14));
        g.drawString("交易流水号：" + vt.getTransactionId(), 20, 100);
        g.drawString("转账金额：￥" + vt.getAmount(), 20, 150);
        
        return image;
    }
}

3. 余额计算引擎

public class BalanceSimulator {
    private double balance = 10000.00; // 初始余额
    
    public synchronized double updateBalance(double amount) {
        this.balance += amount;
        return this.balance;
    }
    
    public String getFormattedBalance() {
        return String.format("%,.2f", balance);
    }
}

三、安全注意事项





必须添加明显水印标识

// 水印生成示例
g.setColor(new Color(200, 200, 200, 100));
g.setFont(new Font("Arial", Font.ITALIC, 40));
g.drawString("虚拟凭证·仅供测试", 50, 400);





禁止连接真实金融系统



建议增加有效期自动销毁机制

<template>
  <view class="transfer-page">
    <uni-forms ref="form">
      <uni-forms-item label="转账金额">
        <uni-easyinput v-model="amount" placeholder="请输入金额"/>
      </uni-forms-item>
      <button @click="generateReceipt">生成凭证</button>
    </uni-forms>
    
    <canvas canvas-id="receiptCanvas" 
            v-if="showCanvas"
            class="receipt-canvas"/>
  </view>
</template>

<script>
export default {
  data() {
    return {
      amount: '',
      showCanvas: false
    }
  },
  methods: {
    generateReceipt() {
      this.showCanvas = true;
      this.$nextTick(() => {
        const ctx = uni.createCanvasContext('receiptCanvas');
        // 绘制银行回单UI
        ctx.setFontSize(16);
        ctx.fillText("虚拟转账凭证", 100, 30);
        ctx.draw();
      });
    }
  }
}
</script>

public class AndroidScreenshotUtil {
    // 截取当前Activity内容（包含状态栏）
    public static Bitmap captureActivity(Activity activity) {
        View decorView = activity.getWindow().getDecorView();
        decorView.setDrawingCacheEnabled(true);
        Bitmap bmp = Bitmap.createBitmap(decorView.getDrawingCache());
        decorView.setDrawingCacheEnabled(false);
        return bmp;
    }

    // 保存Bitmap到本地相册
    public static void saveToGallery(Context context, Bitmap bitmap) {
        String fileName = "Screenshot_" + System.currentTimeMillis() + ".jpg";
        ContentValues values = new ContentValues();
        values.put(MediaStore.Images.Media.DISPLAY_NAME, fileName);
        values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
        
        Uri uri = context.getContentResolver().insert(
            MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
        
        try (OutputStream out = context.getContentResolver().openOutputStream(uri)) {
            bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
            Toast.makeText(context, "截图已保存", Toast.LENGTH_SHORT).show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}