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vue-puzzle-vcode-dd

v1.0.3

Published

vue 滑动拼图验证码 可后端校验

Downloads

12

Readme

vue-puzzle-vcode-dd

Vue 拼图人机验证、右滑拼图验证 用vue-puzzle-vcode,在vue-puzzle-vcode的基础上新增后端校验。

安装

  npm install vue-puzzle-vcode-dd --save

使用

  import Vcode from "vue-puzzle-vcode-dd";
 <Vcode
                    :show="isShow"
                    :pinXY="pinXY"
                    :canvasWidth="canvasWidth"
                    :canvasHeight="canvasHeight"
                    @onSuccess="onSuccess"
                    @onClose="onClose"
                    :imgs="imgs_arr"
                  />

例子

<template>
 <Vcode
                    :show="isShow"
                    :pinXY="pinXY"
                    :canvasWidth="canvasWidth"
                    :canvasHeight="canvasHeight"
                    @onSuccess="onSuccess"
                    @onClose="onClose"
                    :imgs="imgs_arr"
                  />
  <button @click="onSubmit">登录</button>
</template>

<script>
    import Vcode from "vue-puzzle-vcode-check";
  export default {
    data(){
      return {
        isShow: false, // 验证码模态框是否出现
        pinXY:[110,30],//后端传来拼图的起始坐标
        imgs_arr:[] //不传就随机图片
        canvasWidth:310,//默认310
        canvasHeight:160,//默认160
      }
    },
    components:{
      Vcode
    },
    methods:{
      onSubmit(){
        this.isShow = true;
      },
      // 用户通过了验证
      // 用户通过了验证
      onSuccess(rangeX, newX,startX) {
        console.log('验证码验证成功')
        console.log(rangeX)
        console.log(newX)
        console.log(startX)
        //把msg和newX传入后端校验
        // this.isShow = false; // 通过验证后,需要手动隐藏模态框
        /**
         * //后端校验公式  
         * //session值:pinX pinY
         * //传入值newX
         *const startWidth=50

         * const canvasWidth=310
         * var  w = startWidth + newX - startX;
         * var styleWidth=w < 50 ? 50 : w > this.canvasWidth ? this.canvasWidth : w;
         *       var x = Math.abs(
                 pinX -
                  (styleWidth - 50) +
                  20 * ((styleWidth - 50) / (canvasWidth - 50)) -
                  3
              );
              x<10 且等于前端传入的x 则成功校验
         */
        //签到成功,从后端获取签到的日期
        this.isShow = false;
      },
      // 用户点击遮罩层,应该关闭模态框
      onClose(){
        this.isShow = false;
      }
    }
  }
</script>

##后端校验公式

   
  //session值:pinX pinY
  //传入值 newX  startX
 const startWidth=50
  const canvasWidth=310
  var  w = startWidth + newX - startX;
  var styleWidth=w < 50 ? 50 : w > this.canvasWidth ? this.canvasWidth : w;
        var x = Math.abs(
         pinX -
          (styleWidth - 50) +
          20 * ((styleWidth - 50) / (canvasWidth - 50)) -
          3
      );
      x<10 且等于前端传入的x 则成功校验
 

参数

| 字段 | 类型 | 默认值 | 说明 | | ------------ | ------- | ------------------ | ---------------------- | | show | Boolean | false | 是否显示验证码弹框 | | canvasWidth | Number | 310 | 主图区域的宽度 | | canvasHeight | Number | 160 | 主图区域的高度 | | imgs | Array | null | 自定义图片,见下方例子 | | successText | String | "验证通过!" | 验证成功时的提示文字 | | failText | String | "验证失败,请重试" | 验证失败时的提示文字 | | sliderText | String | "拖动滑块完成拼图" | 下方滑动条里的文字 | | pinXY | String | "拼块区域的位置" | 传入拼块区域的区域位置[0, 0],这个值后端生成传入 |

事件

| 事件名 | 返回值 | 说明 | | --------- | ------ | ------------------------------------------------------------ | | onSuccess | 偏差值 | 验证通过时会触发,返回值是用户移动的距离跟目标距离的偏差值px | | onFail | 偏差值 | 验证失败时会触发,返回值同上 | | onClose | null | 用户点击遮罩层的回调 |

自定义图片

<template>
  <Vcode :imgs="[Img1, Img2]" />
</template>

<script>
import Img1 from '~/assets/img1.png';
import Img2 from '~/assets/img2.png';

export default {
  data(){
    return {
      Img1,
      Img2
    }
  }
}
</script>
  • 也可以是网络图片完整URL路径,但注意图片跨域问题

说明

  • 当不传递imgs字段或图片加载出错时,会自动生成随机图片
  • 模态框的显示和隐藏完全由父级控制,所以用户通过验证后,需要手动隐藏模态框