{ "result": null, "log_id": 304592860300941982, "error_msg": "image check fail", "cached": 0, "error_code": 222203, "timestamp": 1556030094 }

这个是人脸识别时无法检测到图片报的错，有时候我们检测一张图片是否在库里面，当一张图片明显在里面，还检测不到，如下面是我的代码

 package Test1;

 import java.io.IOException;
 import java.util.Arrays;
 import java.util.HashMap;

 import org.json.JSONObject;

 import com.baidu.aip.face.AipFace;

 /**
  * 人脸对比
  */
 public class BaiduFaceTest {

 // 这里填写你自己应用的三项
     public static final String APP_ID = "";
     public static final String API_KEY = "iinpWTE1pvOnH3YNmk4tG5Z6";
     public static final String SECRET_KEY = "LMl3pgidH2AzGcTnOM3qh1x3GFnh6jt5";

     public static void main(String[] args) throws IOException {
         AipFace client = new AipFace(APP_ID, API_KEY, SECRET_KEY);

         String image1 = "C:\\Users\\19575\\Pictures\\Saved Pictures\\紫霞仙子\\a.jpg";
         String image2 = "C:\\Users\\19575\\Pictures\\Saved Pictures\\紫霞仙子\\b.jpg";

           JSONObject rs = client.search(image1, "BASE64", "group002", new HashMap<>());
        // JSONObject rs=client.detect(image1, "URL", new HashMap<>());
         System.out.println(rs.toString());

     }

 }

最后才搞明白是因为我们必须把图片转为BASE64才能正确的和库里面的图片比对，下面引入了加密函数

 package Test1;

 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.HashMap;

 import org.json.JSONObject;

 import com.baidu.aip.face.AipFace;

 import sun.misc.BASE64Encoder;

 /**
  * 人脸对比
  */
 public class BaiduFaceTest {

 // 这里填写你自己应用的三项
     public static final String APP_ID = "";
     public static final String API_KEY = "iinpWTE1pvOnH3YNmk4tG5Z6";
     public static final String SECRET_KEY = "LMl3pgidH2AzGcTnOM3qh1x3GFnh6jt5";

     public static void main(String[] args) throws IOException {
         AipFace client = new AipFace(APP_ID, API_KEY, SECRET_KEY);

         String image1 = "C:\\Users\\19575\\Pictures\\Saved Pictures\\紫霞仙子\\c.jpg";
         System.out.println(image1);
         String image2 = "C:\\Users\\19575\\Pictures\\Saved Pictures\\紫霞仙子\\b.jpg";

         String msg=GetImageStr(image1);
           JSONObject rs = client.search(msg, "BASE64", "group002", new HashMap<>());
        // JSONObject rs=client.detect(image1, "URL", new HashMap<>());
         System.out.println(rs.toString());

     }
     public static String GetImageStr(String imgFile)
     {//将图片文件转化为字节数组字符串，并对其进行Base64编码处理
         InputStream in = null;
         byte[] data = null;
         //读取图片字节数组
         try
         {
             in = new FileInputStream(imgFile);
             data = new byte[in.available()];
             in.read(data);
             in.close();
         }
         catch (IOException e)
         {
             e.printStackTrace();
         }
         //对字节数组Base64编码
         BASE64Encoder encoder = new BASE64Encoder();
         return encoder.encode(data);//返回Base64编码过的字节数组字符串
     }  

 }

不过加密解密函数无法直接使用，需要通过下面这个教程把自带的jar包导进去

https://blog.csdn.net/u011514810/article/details/72725398

这样可以正确的检测到图片了。