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How to use uniapp to develop ID card recognition function
Introduction:
ID card recognition is a very important function in the field of mobile applications. It can automatically parse the ID card photo after the user takes it. information on the ID card. This article will introduce how to use uniapp to develop ID card recognition function, and attach code examples to help developers quickly implement this function.
1. Preparation:
Before using uniapp to develop the ID card recognition function, we need to complete the following preparations:
2. Create the uniapp project:
After the preparation work is completed, we can start to create the uniapp project. Open the uniapp development environment, choose to create a new project, fill in the relevant information as prompted, and finally complete the project creation.
3. Import the ID card recognition plug-in:
manifest.json
file in the plug-in directory, open and add the following configuration: "plugins": { "idcard-recognition": { "version": "*", "provider": "thirdparty" } }
import idcardRecognition from '@/js_sdk/idcard-recognition'
4. Take ID card photos:
Create a button on the page. When the button is clicked, the camera will be opened and the user can take ID card photos. . The code is as follows:
<template> <view> <button @click="takePhoto">拍摄照片</button> </view> </template> <script> export default { methods: { takePhoto() { uni.chooseImage({ count: 1, sizeType: ['compressed'], sourceType: ['camera'], success: (res) => { const path = res.tempFilePaths[0] this.recognitionIdCard(path) } }) }, recognitionIdCard(path) { // 调用插件进行身份证识别 idcardRecognition.recognition({ path: path, success: (res) => { console.log(res) }, fail: (err) => { console.error(err) } }) } } } </script>
In the above code, the takePhoto
method is used to handle the event of taking a photo. Open the camera through the uni.chooseImage
method. After the user takes a photo, the temporary file path of the photo will be returned, and then the recognitionIdCard
method is called for ID card recognition.
5. Analyze ID card information:
After the ID card is successfully recognized, we can get the information on the ID card. Usually, the ID card information is parsed into a JSON object, and we can perform corresponding operations. The code is as follows:
idcardRecognition.recognition({ ... success: (res) => { const idcardInfo = JSON.parse(res.result) console.log('姓名:' + idcardInfo.name) console.log('性别:' + idcardInfo.gender) console.log('民族:' + idcardInfo.nationality) console.log('出生日期:' + idcardInfo.birth) console.log('地址:' + idcardInfo.address) console.log('身份证号码:' + idcardInfo.id) }, ... })
In the above code, we convert the recognition result into a JSON object through the JSON.parse
method, and then we can perform the corresponding operations as needed.
6. Summary:
Through the introduction of this article, we have learned how to use uniapp to develop the ID card recognition function. First, the preparation work was completed, then the uniapp project was created and the ID card recognition plug-in was imported. Next, we wrote the function of taking ID card photos and the code to parse the ID card information. I hope the above content will be helpful to everyone in using uniapp to develop ID card recognition functions.
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