通过调用百度的接口，实现身份证银行卡的信息识别
前提：需要在百度创建账号，创建应用，获取AppID，API Key，Secret Key。
百度文档链接：https://cloud.baidu.com/doc/OCR/s/rk3h7xzck
获取身份证信息与银行卡的信息类似，此处以身份证信息为例：
controller：
/**
* 解析身份证信息
* @param id_card_side
* @param access_token
* @param image
* @param response
* @return
*/
@RequestMapping("/idcard")
@ResponseBody
public AjaxResult idcard(String id_card_side, String access_token, @RequestParam("image")MultipartFile image, HttpServletResponse response) {
CrossComain(response);
// 请求url
String url = "https://aip.baidubce.com/rest/2.0/ocr/v1/idcard";
try {
byte[] imgData = image.getBytes();
String imgStr = Base64Util.encode(imgData);
String imgParam = URLEncoder.encode(imgStr, "UTF-8");
String param = "id_card_side=" + "front" + "&image=" + imgParam;
String result = HttpUtil.post(url, access_token, param);
System.out.println(result);
Map<String,Object> ma = new HashMap<>();
JSONObject ja = JSONObject.parseObject(result);
System.out.println(ja);
String words_result = ja.getString("words_result");
if(words_result==null||words_result.equals("null")){
return AjaxResult.error("解析失败！");
}
JSONObject jb = JSONObject.parseObject(words_result);
ma.put("vAddress",JSONObject.parseObject(jb.getString("住址")).getString("words"));
ma.put("vBirth",JSONObject.parseObject(jb.getString("出生")).getString("words"));
ma.put("vName",JSONObject.parseObject(jb.getString("姓名")).getString("words"));
ma.put("vCard",JSONObject.parseObject(jb.getString("公民身份号码")).getString("words"));
if(JSONObject.parseObject(jb.getString("性别")).getString("words").equals("男")){
ma.put("vSex",1);
}else{
ma.put("vSex",2);
}
ma.put("vNation",JSONObject.parseObject(jb.getString("民族")).getString("words"));
return AjaxResult.success("解析成功！",ma);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}base64工具类：
/**
* Base64 工具类
*/
public class Base64Util {
private static final char last2byte = (char) Integer.parseInt("00000011", 2);
private static final char last4byte = (char) Integer.parseInt("00001111", 2);
private static final char last6byte = (char) Integer.parseInt("00111111", 2);
private static final char lead6byte = (char) Integer.parseInt("11111100", 2);
private static final char lead4byte = (char) Integer.parseInt("11110000", 2);
private static final char lead2byte = (char) Integer.parseInt("11000000", 2);
private static final char[] encodeTable = new char[]{'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'};
public Base64Util() {
}
public static String encode(byte[] from) {
StringBuilder to = new StringBuilder((int) ((double) from.length * 1.34D) + 3);
int num = 0;
char currentByte = 0;
int i;
for (i = 0; i < from.length; ++i) {
for (num %= 8; num < 8; num += 6) {
switch (num) {
case 0:
currentByte = (char) (from[i] & lead6byte);
currentByte = (char) (currentByte >>> 2);
case 1:
case 3:
case 5:
default:
break;
case 2:
currentByte = (char) (from[i] & last6byte);
break;
case 4:
currentByte = (char) (from[i] & last4byte);
currentByte = (char) (currentByte << 2);
if (i + 1 < from.length) {
currentByte = (char) (currentByte | (from[i + 1] & lead2byte) >>> 6);
}
break;
case 6:
currentByte = (char) (from[i] & last2byte);
currentByte = (char) (currentByte << 4);
if (i + 1 < from.length) {
currentByte = (char) (currentByte | (from[i + 1] & lead4byte) >>> 4);
}
}
to.append(encodeTable[currentByte]);
}
}
if (to.length() % 4 != 0) {
for (i = 4 - to.length() % 4; i > 0; --i) {
to.append("=");
}
}
return to.toString();
}http工具类
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;
/**
* http 工具类
*/
public class HttpUtil {
public static String post(String requestUrl, String accessToken, String params)
throws Exception {
String contentType = "application/x-www-form-urlencoded";
return HttpUtil.post(requestUrl, accessToken, contentType, params);
}
public static String post(String requestUrl, String accessToken, String contentType, String params)
throws Exception {
String encoding = "UTF-8";
if (requestUrl.contains("nlp")) {
encoding = "GBK";
}
return HttpUtil.post(requestUrl, accessToken, contentType, params, encoding);
}
public static String post(String requestUrl, String accessToken, String contentType, String params, String encoding)
throws Exception {
String url = requestUrl + "?access_token=" + accessToken;
return HttpUtil.postGeneralUrl(url, contentType, params, encoding);
}
public static String postGeneralUrl(String generalUrl, String contentType, String params, String encoding)
throws Exception {
URL url = new URL(generalUrl);
// 打开和URL之间的连接
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
// 设置通用的请求属性
connection.setRequestProperty("Content-Type", contentType);
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setUseCaches(false);
connection.setDoOutput(true);
connection.setDoInput(true);
// 得到请求的输出流对象
DataOutputStream out = new DataOutputStream(connection.getOutputStream());
out.write(params.getBytes(encoding));
out.flush();
out.close();
// 建立实际的连接
connection.connect();
// 获取所有响应头字段
Map<String, List<String>> headers = connection.getHeaderFields();
// 遍历所有的响应头字段
for (String key : headers.keySet()) {
System.err.println(key + "--->" + headers.get(key));
}
// 定义 BufferedReader输入流来读取URL的响应
BufferedReader in = null;
in = new BufferedReader(
new InputStreamReader(connection.getInputStream(), encoding));
String result = "";
String getLine;
while ((getLine = in.readLine()) != null) {
result += getLine;
}
in.close();
System.err.println("result:" + result);
return result;
}html：body
<div class="headTitle fixationHead"> <div class="name">户主信息</div> <div class="addBtn" @click="addIdCardClick">拍照/上传身份证</div> <input type="file" id="idcard" style="display: none;" @change="addIdCardChange()" accept="image/*"> </div>
html ：function
addIdCardClick:function(){
// 弹出文件选择框
let input = document.getElementById('idcard');
input.click();
},
addIdCardChange:function(){
var _this =this;
_this.loadingDiv = true;
$.ajax({
async:true,//同步，异步
url:router.server+"/project/operate/AccessToken", //请求的服务端地址
type:"post",
success:function(data){
debugger
var formData=new FormData();
let resultFile = document.getElementById('idcard').files[0];
formData.append("access_token",data);
formData.append("id_card_side","front");
formData.append("image",resultFile);
$.ajax({
type: "post",
url: router.server+"/project/operate/idcard",
async: true,
data: formData,
dataType: "json",
cache: false,
processData: false,
contentType: false,
success: function (data) {
_this.formData.vAddress = data.data.vAddress;
_this.formData.vBirth = data.data.vBirth;
_this.formData.vName = data.data.vName;
_this.formData.vCard = data.data.vCard;
_this.formData.vSex = data.data.vSex;
_this.formData.vNation = data.data.vNation;
// 页面初始化完成 加载遮罩隐藏
_this.loadingDiv = false;
},
error: function (xhr) {
console.log("请求解析失败");
}
});
},
error:function(){
alert('error'); //错误的处理
_this.loadingDiv = false;
}
});总结：此处采用的方式是通过formData传参，后天获取文件流，直接解析，返回数据到前台。