From 2b83d4d511401b7011e51170d8d7d25c2ca45c51 Mon Sep 17 00:00:00 2001
From: chenyc <501753378@qq.com>
Date: 星期一, 21 四月 2025 16:31:14 +0800
Subject: [PATCH] 更新识别提示
---
src/views/deviceWindoes2.vue | 74 ++++++++++++++++---------------------
1 files changed, 32 insertions(+), 42 deletions(-)
diff --git a/src/views/deviceWindoes2.vue b/src/views/deviceWindoes2.vue
index 1ed4985..3f651df 100644
--- a/src/views/deviceWindoes2.vue
+++ b/src/views/deviceWindoes2.vue
@@ -760,21 +760,20 @@
<el-space fill>
<el-alert type="warning" show-icon :closable="false">
<p>"请输入设备编号后才能使用不然无法定位到数据来源:</p>
+ <p>也可以选择二维码图片文件识别</p>
</el-alert>
<el-form-item label="设备编号">
<el-input v-model="deviceCode" />
</el-form-item>
</el-space>
</el-form>
- <video ref="video" width="300" height="300" autoplay></video>
- <input type="text" v-model="codeResult" placeholder="扫描结果将会显示在这里">
+ <div>
+ <input type="file" pattern="选取二维码" accept="image/*" @change="onFileChange" />
+ </div>
</span>
<template #footer>
<div class="dialog-footer">
<el-button @click="centerDialogVisible = false">取消</el-button>
- <el-button type="primary" @click="shaoma">
- 扫码录入
- </el-button>
<el-button type="primary" @click="saveSet">
确认
</el-button>
@@ -787,6 +786,7 @@
</template>
<script lang="ts" setup>
+ import { BrowserMultiFormatReader, NotFoundException, ChecksumException, FormatException } from '@zxing/library';
import TQS88 from "../img/TQS88.png";
import shezhi from '../img/shezhi.png'
import xinlv from '../img/xinlv.png'
@@ -798,7 +798,6 @@
import cljd from '../img/cljd.png'
import tizhong from '../img/tizhong.png'
import {EventSourcePolyfill} from 'event-source-polyfill';
- import jsQR from 'jsqr';
import { computed, getCurrentInstance, onBeforeMount, onMounted, ref, watch, watchEffect } from "vue";
import { Local } from '../utils/storage';
import * as echarts from "echarts";
@@ -991,8 +990,6 @@
// 告警提示
// 识别窗口
const video = ref<HTMLVideoElement | null>(null);
- // 识别文本
- const codeResult = ref<string>('');
// 识别数据流
let stream: MediaStream | null = null;
const centerDialogVisible = ref(false);
@@ -1186,45 +1183,38 @@
ElMessage.warning('请先输入设备编号')
}
}
- function captureFrame() {
- if (!video.value) return;
-
- const canvas = document.createElement('canvas');
- const context = canvas.getContext('2d');
- if (!context || !video.value) return;
-
- canvas.width = video.value.videoWidth;
- canvas.height = video.value.videoHeight;
- context.drawImage(video.value, 0, 0, canvas.width, canvas.height);
- const imageData = context.getImageData(0, 0, canvas.width, canvas.height);
+ const onFileChange=async(event: Event)=> {
+ const inputElement = event.target as HTMLInputElement;
+ if (!inputElement.files || inputElement.files.length === 0) return;
- // 解析二维码
- const code = jsQR(imageData.data, imageData.width, imageData.height);
- if (code) {
- codeResult.value = code.data;
- }
+ const file = inputElement.files[0];
+ const reader = new FileReader();
- // 定期捕获帧
- setTimeout(captureFrame, 500);
- }
- const startCamera=async()=> {
- if (video.value) {
- try {
- stream = await navigator.mediaDevices.getUserMedia({ video: { facingMode: "environment" } });
- if (video.value) {
- video.value.srcObject = stream;
- video.value.play();
-
- // 开始捕获帧
- captureFrame();
+ reader.onload = async (e) => {
+ if (e.target && typeof e.target.result === 'string') {
+ try {
+ const codeReader = new BrowserMultiFormatReader();
+ const result = await codeReader.decodeFromImage(undefined, e.target.result);
+ deviceCode.value = result.text;
+ ElMessage.success('识别成功')
+ } catch (err) {
+ if (err instanceof NotFoundException) {
+ ElMessage.error("未找到二维码");
+ } else if (err instanceof ChecksumException) {
+ ElMessage.error("校验错误");
+ } else if (err instanceof FormatException) {
+ ElMessage.error("格式错误");
+ } else {
+ ElMessage.error("识别错误请重新识别");
+ console.error(err);
+ }
+ }
}
- } catch (e) {
- console.error("无法访问摄像头", e);
- }
+ };
+
+ reader.readAsDataURL(file);
}
-}
const shaoma=()=>{
- startCamera()
}
watch(
() => deviceData.value.设备变化,
--
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