java 调用百度人脸对比api接口

2021-07-02 18:14:22 浏览数 (1)

1. 获取token

代码语言:javascript复制
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:Fhadmin
  */
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 from:www.fhadmin.cn
        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

代码语言:javascript复制
package org.fh.util;

import java.util.*;

import net.sf.json.JSONObject;

/**
 * 说明:人脸对比
 * 作者:F-H
 * from:www.fhadmin.cn
 */
public class FaceMatch {

    public static String faceMatch(List<Object> list) {
        // 请求url from:www.fhadmin.cn
        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;
    }
    
}

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