java 人脸识别 调用百度api

FH-Admin 2020-11-09 19:27:34
java 人脸识别


1. 获取token

package org.fh.util;
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;
/**
* 说明:获取百度人脸识别token类
* 作者:F-H
* 官网:www.12b3.com
*/
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 = "xxxx";
// 官网获取的 Secret Key 更新为你注册的
String clientSecret = "ssss";
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
*/
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;
}
}

2.人脸对比

package org.fh.util;
import java.util.*;
import net.sf.json.JSONObject;
/**
* 说明:人脸对比
* 作者:F-H
* 官网:www.1b23.com
*/
public class FaceMatch {
public static String faceMatch(List<Object> list) {
// 请求url
String url = "https://aip.baidubce.com/rest/2.0/face/v3/match";
try {
String param = GsonUtils.toJson(list);
// 注意这里仅为了简化编码每一次请求都去获取access_token,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 accessToken = AuthService.getAuth();
String result = HttpUtil.post(url, accessToken, "application/json", param);
return result;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
//PHOTODATA1 图片1的 base64码
//PHOTODATA2 图片2的 base64码 返回的score大于80 说明是同一个人
public static String getScore(String PHOTODATA1,String PHOTODATA2) {
List<Object> list = new ArrayList<Object>();
Map<String,String> map1 = new HashMap<String,String>();
map1.put("image", PHOTODATA1);
map1.put("image_type", "BASE64");
map1.put("face_type", "LIVE");
map1.put("quality_control", "NONE");
map1.put("liveness_control", "NONE");
list.add(map1);
Map<String,String> map2 = new HashMap<String,String>();
map2.put("image", PHOTODATA2);
map2.put("image_type", "BASE64");
map2.put("face_type", "LIVE");
map2.put("quality_control", "NONE");
map2.put("liveness_control", "NONE");
list.add(map2);
String resultStr = FaceMatch.faceMatch(list);
JSONObject jsonMsg = JSONObject.fromObject(resultStr);
String error_msg = jsonMsg.getString("error_msg");
String score = "0";
if("SUCCESS".equals(error_msg)) {
String result = jsonMsg.getString("result");
JSONObject jsonResult = JSONObject.fromObject(result);
score = jsonResult.getString("score");
}
return score;
}
}

 

版权声明
本文为[FH-Admin]所创,转载请带上原文链接,感谢
https://my.oschina.net/fhadmin/blog/4710260

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