百度车牌号识别官方文档

结果视频演示

后端代码

private String getCarNumber(String imagePath, int count) {// 请求urlString url = "https://aip.baidubce.com/rest/2.0/ocr/v1/license_plate";try {byte[] imgData = FileUtil.readFileByBytes(imagePath);String imgStr = Base64Util.encode(imgData);String imgParam = URLEncoder.encode(imgStr, "UTF-8");String param = "image=" + imgParam;String result = HttpUtil.post(url, accessToken, param);log.info("车牌号识别结果,result:{}", result);JSONObject resultObj = JSONObject.parseObject(result);JSONObject wordsResult = resultObj.getJSONObject("words_result");return wordsResult.getString("number");} catch (Exception e) {log.error("车牌号识别异常，图片地址：{}", imagePath);log.error(e.getMessage(), e);if (count >= 3) {log.error("车牌号识别异常，已重试{}次，强制退出", count);return "";}try {Thread.sleep(200);} catch (InterruptedException ex) {throw new RuntimeException(ex);}count ++;return getCarNumber(imagePath, count);}}

前端代码

<el-row :gutter="10"><el-col :span="24"><el-uploadclass="upload-demo"drag:action="carNumberAction"accept="image/*"list-type="picture":on-success="uploadSuccess"><el-icon class="el-icon--upload"><upload-filled /></el-icon><div class="el-upload__text">Drop file here or <em>click to upload</em></div><template #tip><div class="el-upload__tip">jpg/png files with a size less than 500kb</div></template></el-upload></el-col><el-col :span="24"><p style="text-align: center; font-size: 30px; font-weight: bold;">车牌号码为：{{carNumber}}</p></el-col></el-row>

let carNumber = ref('xxxx')const uploadSuccess = async (response, uploadFile, uploadFiles) => {if (response.code !== 0) {proxy.msg.error(response.msg)return}carNumber.value = response.data
}

运行结果

视频演示