三步完成账号的基本注册与认证:
STEP1:点击百度AI开放平台导航右侧的控制台,选择需要使用的AI服务项。若为未登录状态,将跳转至登录界面,请您使用百度账号登录。如还未持有百度账户,可以点击此处注册百度账户。
STEP2:首次使用,登录后将会进入开发者认证页面,请填写相关信息完成开发者认证。注:(如您之前已经是百度云用户或百度开发者中心用户,此步可略过。)
STEP3:进入具体AI服务项的控制面板(如文字识别、人脸识别),进行相关业务操作。
账号登录成功,您需要创建应用才可正式调用AI能力。应用是您调用API服务的基本操作单元,您可以基于应用创建成功后获取的API Key及Secret Key,进行接口调用操作,及相关配置。
在您创建完毕应用后,平台将会分配给您此应用的相关凭证,主要为AppID、API Key、Secret Key。以上三个信息是您应用实际开发的主要凭证,每个应用之间各不相同,请您妥善保管。下图为示例内容:
下载的连接
返回的结果类:
package com.baidu.model;
import java.io.Serializable;
import com.smartpay.actlist.model.BaseResult;
public class BaiduBankCardRes extends BaseResult implements Serializable{
private static final long serialVersionUID = -7603769448608885895L;
private String log_id;
private BankCardRes result;
private String error_code;
private String error_msg;
public String getError_code() {
return error_code;
}
public void setError_code(String error_code) {
this.error_code = error_code;
}
public String getError_msg() {
return error_msg;
}
public void setError_msg(String error_msg) {
this.error_msg = error_msg;
}
public BaiduBankCardRes() {
super();
}
public BaiduBankCardRes(String resCode, String resMsg) {
super(resCode, resMsg);
}
public String getLog_id() {
return log_id;
}
public void setLog_id(String log_id) {
this.log_id = log_id;
}
public BankCardRes getResult() {
return result;
}
public void setResult(BankCardRes result) {
this.result = result;
}
}
package com.baidu.model;
import java.io.Serializable;
public class BankCardRes implements Serializable {
private static final long serialVersionUID = -5831232998485197967L;
private String bank_card_number;
private String valid_date;
private String bank_name;
private int bank_card_type;
public String getBank_card_number() {
return bank_card_number;
}
public void setBank_card_number(String bank_card_number) {
this.bank_card_number = bank_card_number;
}
public String getValid_date() {
return valid_date;
}
public void setValid_date(String valid_date) {
this.valid_date = valid_date;
}
public String getBank_name() {
return bank_name;
}
public void setBank_name(String bank_name) {
this.bank_name = bank_name;
}
public int getBank_card_type() {
return bank_card_type;
}
public void setBank_card_type(int bank_card_type) {
this.bank_card_type = bank_card_type;
}
}
Access Token获取
温馨提示:Access Token的有效期为30天(以秒为单位)
package com.baidu.ai.aip.auth;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;
/**
* 获取token类
*/
public class AuthService {
/**
* 获取权限token
* @return 返回示例:
* {
* "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
* "expires_in": 2592000
* }
*/
public static String getAuth() {
// 官网获取的 API Key 更新为你注册的
String clientId = "百度云应用的AK";
// 官网获取的 Secret Key 更新为你注册的
String clientSecret = "百度云应用的SK";
return getAuth(clientId, clientSecret);
}
/**
* 获取API访问token
* 该token有一定的有效期,需要自行管理,当失效时需重新获取.
* @param ak - 百度云官网获取的 API Key
* @param sk - 百度云官网获取的 Securet Key
* @return assess_token 示例:
* "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
*/
public static String getAuth(String ak, String sk) {
// 获取token地址
String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
String getAccessTokenUrl = authHost
// 1. grant_type为固定参数
+ "grant_type=client_credentials"
// 2. 官网获取的 API Key
+ "&client_id=" + ak
// 3. 官网获取的 Secret Key
+ "&client_secret=" + sk;
try {
URL realUrl = new URL(getAccessTokenUrl);
// 打开和URL之间的连接
HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
connection.setRequestMethod("GET");
connection.connect();
// 获取所有响应头字段
Map<String, List<String>> map = connection.getHeaderFields();
// 遍历所有的响应头字段
for (String key : map.keySet()) {
System.err.println(key + "--->" + map.get(key));
}
// 定义 BufferedReader输入流来读取URL的响应
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String result = "";
String line;
while ((line = in.readLine()) != null) {
result += line;
}
/**
* 返回结果示例
*/
System.err.println("result:" + result);
JSONObject jsonObject = new JSONObject(result);
String access_token = jsonObject.getString("access_token");
return access_token;
} catch (Exception e) {
System.err.printf("获取token失败!");
e.printStackTrace(System.err);
}
return null;
}
}
/*
* Copyright (C) 2017 Baidu, Inc. All Rights Reserved.
*/
package com.baidu.ai.aip.ocr;
import com.baidu.ai.aip.utils.Base64Util;
import com.baidu.ai.aip.utils.FileUtil;
import com.baidu.ai.aip.utils.HttpUtil;
import java.net.URLEncoder;
/**
* 银行卡识别
*/
public class Bankcard {
/**
* 重要提示代码中所需工具类
* FileUtil,Base64Util,HttpUtil,GsonUtils请从
* https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72
* https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2
* https://ai.baidu.com/file/544D677F5D4E4F17B4122FBD60DB82B3
* https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
* 下载
*/
public static void main(String[] args) {
// 银行卡识别url
String bankcardIdentificate = "https://aip.baidubce.com/rest/2.0/ocr/v1/bankcard";
// 本地图片路径
String filePath = "#####本地文件路径#####";
try {
byte[] imgData = FileUtil.readFileByBytes(filePath);
String imgStr = Base64Util.encode(imgData);
String params = URLEncoder.encode("image", "UTF-8") + "=" + URLEncoder.encode(imgStr, "UTF-8");
/**
* 线上环境access_token有过期时间, 客户端可自行缓存,过期后重新获取。
* 这里放入redis
*/
// String accessToken = "#####调用鉴权接口获取的token#####";
String access_token = redisTemplate.opsForValue().get("BAIDU_ACCESS_TOKEN");
log.info("redis_baidu_access_token=="+ access_token);
if(ValidateUtil.isBlank(access_token)){
try {
access_token = AuthService.getAuth();
} catch (Exception e) {
log.info("baidu_access_token获取异常");
e.printStackTrace();
return new BaiduBankCardRes("9999","baidu_access_token获取异常!");
}
log.info("baidu_access_token=="+ access_token);
if(ValidateUtil.isBlank(access_token)){
return new BaiduBankCardRes("9999","baidu_access_token获取失败!");
}else{
redisTemplate.opsForValue().set("BAIDU_ACCESS_TOKEN", access_token,30,TimeUnit.DAYS);
}
}
String result = HttpUtil.post(bankcardIdentificate, access_token , params);
System.out.println(result);
} catch (Exception e) {
e.printStackTrace();
}
}
}
Controller 方法
@RequestMapping("/getBankCardRes")
@ResponseBody
public BaiduBankCardRes getBankCardRes(String imgStr){
try {
String params = URLEncoder.encode("image", "UTF-8") + "=" + URLEncoder.encode(imgStr, "UTF-8");
/**
* 线上环境access_token有过期时间, 客户端可自行缓存,过期后重新获取。
*/
String access_token = redisTemplate.opsForValue().get("BAIDU_ACCESS_TOKEN");
log.info("redis_baidu_access_token=="+ access_token);
if(ValidateUtil.isBlank(access_token)){
try {
access_token = AuthService.getAuth();
} catch (Exception e) {
log.info("baidu_access_token获取异常");
e.printStackTrace();
return new BaiduBankCardRes("9999","baidu_access_token获取异常!");
}
log.info("baidu_access_token=="+ access_token);
if(ValidateUtil.isBlank(access_token)){
return new BaiduBankCardRes("9999","baidu_access_token获取失败!");
}else{
redisTemplate.opsForValue().set("BAIDU_ACCESS_TOKEN", access_token,30,TimeUnit.DAYS);
}
}
String result = HttpUtil.post(ConfigConst.BAI_DU__BANK_CARD_IDENTIFICATE_URL, access_token, params);
log.info("result=="+result);
if(ValidateUtil.isBlank(result)){
return new BaiduBankCardRes("9999","银行卡识别失败!");
}
BaiduBankCardRes baiduBankCardRes = new Gson().fromJson(result, BaiduBankCardRes.class);
log.info("baiduBankCardRes=="+ new Gson().toJson(baiduBankCardRes) );
if(!ValidateUtil.isBlank(baiduBankCardRes.getError_code())){
baiduBankCardRes.setResCode(baiduBankCardRes.getError_code());
baiduBankCardRes.setResMsg(baiduBankCardRes.getError_msg());
return baiduBankCardRes;
}
baiduBankCardRes.setResCode("0000");
return baiduBankCardRes;
} catch (Exception e) {
log.info("异常");
e.printStackTrace();
}
return new BaiduBankCardRes("9999","银行卡识别失败!");
}
返回的结果实例
{"log_id": 6666890388889816218, "result": {"bank_card_number": "6225 7688 8888 8888", "valid_date": "07/21", "bank_card_type": 2, "bank_name": "招商银行"}}