Java实现调用百度AI开放云平台 人脸识别API

               

1.注册开发人员并查看官网API文档

   网址：http://ai.baidu.com/docs

2.在管理中心创建应用及查看相关参数 AppID APIKey SecretKey都需要保存起来

3.开发测试

 3.1、调用百度云人脸识别API需要两步

       1、首先根据创建的应用，获取token，该token有效期为1个月。token的授权服务地址：https://aip.baidubce.com/oauth/2.0/token；

                    发送请求（推荐使用POST），并在URL中带上以下参数：

                        grant_type: 必须参数，固定为“client_credentials”；

                        client_id: 必须参数，应用的API Key；

                        client_secret: 必须参数，应用的Secret Key；

       2、根据token调用api，服务地址：https://aip.baidubce.com/rest/2.0/face/v1/detect

具体实现代码如下：

package com.zmx.baiduaitest;import org.apache.http.client.methods.CloseableHttpResponse;import java.util.HashMap;import java.util.Map;/** * Created by zhangwenchao on 2017/9/29. */public class FaceAPITest {    public static void main(String[] args) {        //  getToKenTest() ;        faceDetecttest();    }    //获取token    public static void getToKenTest(){        //使用其测试百度云API---获取token        //url: http://console.bce.baidu.com/ai        String APPID ="10201***"; //管理中心获得        //百度人脸识别应用apikey        String API_KEY = "WVsGWvDxyn55hW8P*******"; //管理中心获得        //百度人脸识别应用sercetkey        String SERCET_KEY = "z0uSr16LGyTNIMRRnP6f8jCL*****"; //管理中心获得        //百度人脸识别token 有效期一个月        String TOKEN = null;        String access_token_url = "https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials"                +"&client_id="+API_KEY +"&client_secret="+SERCET_KEY;        CloseableHttpResponse response =  HttpClientUtils.doHttpsGet(access_token_url,null);        System.out.println(HttpClientUtils.toString(response));        //得到token = 24.1d786b9cdbdd8ac7cf55d56c7f38372b.2592000.1509244497.282335-10201425    }    //使用token调用API    public static void faceDetecttest(){        String token = "24.1d786b9cdbdd8ac7cf55d56c7f38372b.2592000.1509244497.282335-10201425";        String Filepath = "E:/test.jpg";        String image = Base64ImageUtils.GetImageStrFromPath(Filepath);        String url = "https://aip.baidubce.com/rest/2.0/face/v1/detect?access_token="+token;        Map<String, String> headers = new HashMap<String, String>();        headers.put("Content-Type", "application/x-www-form-urlencoded");        Map<String, String> bodys = new HashMap<String, String>();        bodys.put("image", image);        bodys.put("face_fields", "age,beauty,expression,gender,glasses,race,qualities");        try {            CloseableHttpResponse response =  HttpClientUtils.doHttpsPost(url,headers,bodys);            System.out.println(HttpClientUtils.toString(response));        } catch (Exception e) {            e.printStackTrace();        }    }}

上述用到了几个工具类如下：

HttpClientUtils.java：httpclient工具类用于发起get、post请求

package com.zmx.baiduaitest;import org.apache.http.*;import org.apache.http.client.CookieStore;import org.apache.http.client.config.AuthSchemes;import org.apache.http.client.config.CookieSpecs;import org.apache.http.client.config.RequestConfig;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.protocol.HttpClientContext;import org.apache.http.config.Registry;import org.apache.http.config.RegistryBuilder;import org.apache.http.conn.socket.ConnectionSocketFactory;import org.apache.http.conn.socket.PlainConnectionSocketFactory;import org.apache.http.conn.ssl.NoopHostnameVerifier;import org.apache.http.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.cookie.Cookie;import org.apache.http.impl.client.*;import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import javax.net.ssl.SSLContext;import javax.net.ssl.TrustManager;import javax.net.ssl.X509TrustManager;import java.io.IOException;import java.security.KeyManagementException;import java.security.NoSuchAlgorithmException;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import java.util.ArrayList;import java.util.Arrays;import java.util.List;import java.util.Map;/** * HttpClient4.5.X实现的工具类 * 可以实现http和ssl的get/post请求 */public class HttpClientUtils{    //创建HttpClientContext上下文    private static HttpClientContext context = HttpClientContext.create();    //请求配置    private static RequestConfig requestConfig = RequestConfig.custom()                    .setConnectTimeout(120000)                    .setSocketTimeout(60000)                    .setConnectionRequestTimeout(60000)                    .setCookieSpec(CookieSpecs.STANDARD