【阿里云高校计划】阿里云AI训练营——Day02
第二天的学习跨度很大，是做一个身份证识别的 Web页面，有一些半知半解，就把完成的代码记录下来，分类总结。
前端代码：
<html lang="zh" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
<title>身份证识别title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">
head>
<body>
<div class="container">
<div class="row">
<div class="col-xl-12 mx-auto">
<h1>身份证识别h1>
<div class="col-sm-12">
<p th:text="${messages}" th:if="${messages != null}" class="alert alert-info">p>
div>
<form method="post" th:action="@{/upload}" enctype="multipart/form-data">
<div class="row">
<div class="col-sm-4">
<div class="input-group">
<input id="location" class="form-control" onclick="$('#i-face').click();">
<label class="input-group-btn">
<input type="button" id="i-check" value="上传人像面" class="btn btn-primary" onclick="$('#i-face').click();">
label>
div>
div>
<input type="file" name="face" id="i-face" accept=".jpg, .png, .jpeg" onchange="$('#location').val($('#i-face').val());" style="display: none">
<div class="col-sm-4">
<div class="input-group">
<input id="locationf" class="form-control" onclick="$('#i-back').click();">
<label class="input-group-btn">
<input type="button" id="i-checkb" value="上传国徽面" class="btn btn-primary" onclick="$('#i-back').click();">
label>
div>
div>
<input type="file" name="back" id="i-back" accept=".jpg, .png, .jpeg" onchange="$('#locationf').val($('#i-back').val());" style="display: none">
<div class="col-sm-4">
<button type="submit" class="btn btn-primary form-control">开始识别button>
div>
div>
form>
div>
div>
<div class="row" style="margin-top: 38px;">
<div class="col-md-12 mx-auto">
<div class="row">
<div class="col-sm-4">
<img th:src="${faceImage}" th:if="faceImage != null" class="img-fluid">
div>
<div class="col-sm-4">
<img th:src="${backImage}" th:if="backImage != null" class="img-fluid">
div>
div>
div>
div>
<div class="row" style="margin-top: 38px;">
<div class="col-md-12 mx-auto" th:if="${faceResult != null}">
<div class="row">
<div class="col-sm-4">
<p><span>姓名: span><span th:text="${faceResult.name}">span>p>
<p><span>性别: span><span th:text="${faceResult.gender}">span>p>
<p><span>民族: span><span th:text="${faceResult.nationality}">span>p>
<p><span>出生日期: span><span th:text="${faceResult.birthDate}">span>p>
<p><span>住址: span><span th:text="${faceResult.address}">span>p>
<p><span>身份证号: span><span th:text="${faceResult.IDNumber}">span>p>
div>
<div class="col-sm-4">
<p><span>签发机关: span><span th:text="${backResult.issue}">span>p>
<p><span>有效日期: span><span th:text="${backResult.startDate}">-<span th:text="${faceResult.endDate}">span>span>p>
div>
div>
div>
div>
div>
body>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous">script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous">script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous">script>
html>
Maincontroller：控制层
package com.xyz;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.CollectionUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.UUID;
@Controller
public class MainController {
@Value("${file.uplaod.path}")
private String uploadDir;
@Autowired
private OcrService ocrService;
private List<String> faceImages = new ArrayList<>();
private List<String> backImages = new ArrayList<>();
private List<Map<String, String>> faceResults = new ArrayList<>();
private List<Map<String, String>> backResults = new ArrayList<>();
@RequestMapping("/index")
public String index(Model model) {
if (faceImages.size() != backImages.size()) {
clearAllList();
}
if (!CollectionUtils.isEmpty(faceImages) && faceImages.size() == backImages.size()) {
model.addAttribute("faceImage", faceImages.get(faceImages.size() - 1));
model.addAttribute("faceResult", faceResults.get(faceResults.size() - 1));
model.addAttribute("backImage", backImages.get(backImages.size() - 1));
model.addAttribute("backResult", backResults.get(backResults.size() - 1));
}
return "index";
}
@RequestMapping("/test")
@ResponseBody
public String test() {
return "test";
}
@PostMapping("/upload")
public String upload(@RequestParam("face") MultipartFile face, @RequestParam("back") MultipartFile back,
RedirectAttributes redirectAttributes) {
if (face.isEmpty() || back.isEmpty()) {
redirectAttributes.addFlashAttribute("messages", "请选择一个文件进行上传。");
return "redirect:/index";
}
String errorMessages = null;
Path dir = Paths.get(uploadDir);
if (!Files.exists(dir)) {
try {
Files.createDirectories(dir);
} catch (IOException e) {
e.printStackTrace();
errorMessages += e.getMessage() + "\n";
}
}
try {
if (!face.isEmpty()) {
String filename = saveFile(face);
Map<String, String> faceResult = ocrService.RecognizeIdCard(uploadDir + filename, "face");
faceImages.add("/images/" + filename);
faceResults.add(faceResult);
}
if (!back.isEmpty()) {
String filename = saveFile(back);
Map<String, String> faceResult = ocrService.RecognizeIdCard(uploadDir + filename, "back");
backImages.add("/images/" + filename);
backResults.add(faceResult);
}
} catch (Exception e) {
e.printStackTrace();
errorMessages += e.getMessage() + "\n";
}
if (StringUtils.isNoneBlank(errorMessages)) {
redirectAttributes.addFlashAttribute("messages", errorMessages);
}
return "redirect:/index";
}
private void clearAllList() {
faceImages.clear();
backImages.clear();
faceResults.clear();
backResults.clear();
}
public String saveFile(MultipartFile file) {
String filename = UUID.randomUUID().toString() + "."
+ StringUtils.substringAfterLast(file.getOriginalFilename(), ".");
Path path = Paths.get(uploadDir + filename);
try {
Files.copy(file.getInputStream(), path, StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
return null;
}
return filename;
}
}
OcrService：阿里云的识别工具
package com.xyz;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.aliyun.ocr.Client;
import com.aliyun.ocr.models.Config;
import com.aliyun.ocr.models.RecognizeIdentityCardAdvanceRequest;
import com.aliyun.ocr.models.RecognizeIdentityCardResponse;
import com.aliyun.teautil.models.RuntimeOptions;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import javax.annotation.PostConstruct;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Map;
@Service
public class OcrService {
private Client orcClient;
private RuntimeOptions runtimeOptions;
@Value("${aliapi.accessKeyId}")
private String accessKeyId;
@Value("${aliapi.accessKeySecret}")
private String accessKeySecret;
@PostConstruct
private void init() throws Exception {
Config config = new Config();
config.endpointType = "access_key";
config.regionId = "cn-shanghai";
config.accessKeyId = accessKeyId;
config.accessKeySecret = accessKeySecret;
config.endpoint = "ocr.cn-shanghai.aliyuncs.com";
orcClient = new Client(config);
runtimeOptions = new RuntimeOptions();
}
public Map<String, String> RecognizeIdCard(String fielpath, String side) throws Exception {
RecognizeIdentityCardAdvanceRequest request = new RecognizeIdentityCardAdvanceRequest();
request.imageURLObject = Files.newInputStream(Paths.get(fielpath));
request.side = side;
RecognizeIdentityCardResponse response = orcClient.recognizeIdentityCardAdvance(request, runtimeOptions);
return "face".equals(side) ?
JSON.parseObject(JSON.toJSONString(response.data.frontResult), new TypeReference<Map<String, String>>(){})
: JSON.parseObject(JSON.toJSONString(response.data.backResult), new TypeReference<Map<String, String>>(){});
}
}
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class IdCardorcApplication {
public static void main(String[] args) {
SpringApplication.run(IdCardorcApplication.class, args);
}
}
项目源码：
源码分享：
https://github.com/xuyuanzhi051/personalprojects/tree/master/02IdentityCard
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