ocx fingerprint control is implemented in vue

With the increasing development of the Internet, the security of various applications has received more and more attention. Among them, fingerprint recognition technology is widely used in various scenarios, such as banks, governments, enterprises, etc. In order to facilitate developers to implement fingerprint recognition functions in web applications, this article introduces the implementation method of OCX fingerprint control in the Vue framework.

1. Prerequisites

Before introducing the specific implementation process, you need to understand some prerequisite knowledge: Vue framework and OCX fingerprint control.

Vue is one of the most popular front-end frameworks currently and is lightweight, fast, and flexible. I won’t go into details about the basic knowledge and usage of Vue. Readers can check the official documentation.

OCX fingerprint control is a fingerprint recognition control based on ActiveX technology, which can provide fingerprint collection and comparison functions. This control needs to run properly in the IE browser, so it needs to be embedded into the Web page. In this article, we use the fingerprint control provided by Jiangsu Lishi Electronic Technology Co., Ltd.

2. Implementation process

Before implementing the application of OCX fingerprint control in the Vue framework, we need to complete the following steps:

1. Get the fingerprint control related files and install them. These files include the control's Dll file and installation program, which need to be installed under Windows systems.
2. Add the fingerprint control to the Web page. An ActiveX control needs to be inserted into the page so that the browser can call the fingerprint control.

After completing the above steps, we can start to implement the fingerprint recognition function in the Vue framework. The specific implementation process is as follows:

1. Introduce the relevant methods and parameters of the fingerprint control into the Vue component.

<script>
export default {
  mounted() {
    // 在组件加载时引入指纹控件
    const fp = document.getElementById('FPControl')
    // 根据控件的GUID进行初始化
    fp.Init('xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx')
  },
  methods: {
    // 获取指纹数据
    getFingerPrint() {
      const fp = document.getElementById('FPControl')
      // 调用控件的Scan方法进行指纹采集
      const res = fp.Scan()
      // 返回指纹数据
      return res
    },
    // 比对指纹数据
    compareFingerPrint(fpData1, fpData2) {
      const fp = document.getElementById('FPControl')
      // 调用控件的Compare方法进行指纹比对
      const res = fp.Compare(fpData1, fpData2)
      // 返回比对结果，0表示匹配，-1表示不匹配
      return res
    }
  }
}
</script>

2. Insert the fingerprint control into the Vue template.

<template>
  <div>
    <!-- 插入ActiveX控件 -->
    <object id="FPControl" type="application/x-oleobject" classid="clsid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"></object>
    <!-- 在页面中添加指纹识别功能 -->
    <div>
      <button @click="getFingerData">采集指纹</button>
      <button @click="compareFingerData">比对指纹</button>
    </div>
  </div>
</template>

As shown above, we inserted an ActiveX control into the Vue template and added two buttons to the page to call the fingerprint collection and comparison functions.

3. Call the relevant methods of the fingerprint control to implement fingerprint identification.

In the Vue component, we implement the fingerprint collection function by calling the Scan method of the fingerprint control, and implement the fingerprint comparison function by calling the comparison method Compare. This function can be used for security authentication in banks and other places.

3. Notes

When using the OCX fingerprint control, you need to pay attention to the following:

1. The control can only run normally in the IE browser. Compatibility issues may occur in other browsers.
2. The control requires manual installation by the user, otherwise it cannot be used. Appropriate installation tips or documentation should be provided.
3. The interface called by the control may be restricted by certain security policies and needs to be set according to the actual situation.

4. Summary

This article introduces how to integrate the OCX fingerprint control in the Vue framework to realize the fingerprint collection and comparison functions. Fingerprint identification technology has extensive applications and far-reaching significance in modern society. Through the introduction of this article, I believe readers can better understand the implementation principles and practical applications of this technology.

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