java 百度人脸识别接口调用配置

/**人脸识别处理中方法
   * @param
   * @throws Exception
   */
  @RequestMapping(value="/faceRecognition")
  @ResponseBody
  public Object faceRecognition() throws Exception{
    Map<String,Object> map = new HashMap<String,Object>();
    String errInfo = "error";
    PageData pd = new PageData();
    pd = this.getPageData();
    String imgData = pd.getString("PHOTODATA").replace("data:image/jpeg;base64,", "").replace("data:image/png;base64,", "");
    String times = pd.getString("times");
    String USERNAME = pd.getString("USERNAME");
    pd.put("USERNAME", Tools.notEmpty(USERNAME)?USERNAME:Jurisdiction.getUsername());
    PageData upd = new PageData();
    upd = photoService.findFace(pd);
    if("1".equals(times)) {       //第一次存，第二次根据两个base64进行头像识别
      pd.put("PHOTO", imgData);   //把base64编码存到PHOTO0字段里面
      pd.put("STATE", "yes");
      if(null == upd) {
        photoService.addFace(pd);
      }else {
        photoService.editFace(pd);
      }
      errInfo = "success";
    }else {
      PageData tpd = new PageData();
      tpd.put("USERNAME", "FaceAccessToken"); //用户名为 FaceAccessToken 的在用户头像表SYS_USERPHOTO里，PHOTO2 存的是更新Token的时间，PHOTO3存的是Token的值，此数据所有用户共享
      tpd = photoService.findById(tpd);
      String accessToken = tpd.getString("PHOTO3");
      if(DateUtil.getDaySub(tpd.getString("PHOTO2"),DateUtil.getDay()) > 29) { //access_token有过期时间为30天，过期后重新获取。
        accessToken = AuthService.getAuth();
        tpd.put("PHOTO2", DateUtil.getDay());
        tpd.put("PHOTO3", accessToken);
        photoService.edit(tpd); 
      }
      if(FaceMatch.getScore(upd.getString("PHOTO"),imgData,accessToken)) {
         errInfo = "success";
         upd.put("STATE", "yes");
         photoService.editFaceState(upd);//更新识别状态
      }   
    }
    map.put("result", errInfo);
    return map;
  }

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：FH Admin
 * from：fhadmin.cn
 */
public class AuthService {
    /**
     * 获取权限token
     * @return 返回示例：
     * {
     * "access_token": "24.460da4889caad24c1ccxxdb1fea17221975.2592000.1491995545.282335-1234567",
     * "expires_in": 2592000
     * }
     */
    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的
        String clientId = "GgNx1THTR6kScxx2cQe36jRT2a";
        // 官网获取的 Secret Key 更新为你注册的
        String clientSecret = "I0L1rNSWwIsu6zx3cxczz1hnBGDbCgrjkCvaV";
        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：
     * "24.460da4889caad24cc23231fea17221975.259110.14e91995545.282335-1234567"
     */
    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;
    }
}