本示例介绍如何使用Alibaba Cloud SDK for Java进行自定义人脸检索。
前提条件
在使用本教程之前,请确保已完成以下操作:
- 使用Alibaba Cloud SDK for Java,您需要一个阿里云账号和访问密钥(AccessKey)。 请在阿里云控制台中的AccessKey管理页面上创建和查看您的AccessKey。
- 确保您已经安装了Alibaba Cloud SDK for Java,准确的SDK版本号,请参见 阿里云开发工具包(SDK)。
<dependencies> <!-- https://mvnrepository.com/artifact/com.aliyun/aliyun-java-sdk-core --> <dependency> <groupId>com.aliyun</groupId> <artifactId>aliyun-java-sdk-core</artifactId> <version>4.4.3</version> </dependency> <!-- https://mvnrepository.com/artifact/com.aliyun/aliyun-java-sdk-green --> <dependency> <groupId>com.aliyun</groupId> <artifactId>aliyun-java-sdk-green</artifactId> <version>3.5.1</version> </dependency> <!-- https://mvnrepository.com/artifact/com.aliyun/aliyun-java-sdk-oss --> <dependency> <groupId>com.aliyun.oss</groupId> <artifactId>aliyun-sdk-oss</artifactId> <version>2.8.3</version> </dependency> <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.61</version> </dependency> </dependencies>
- 如果使用本地文件或者二进制文件检测,请下载并在项目工程中引入Extension.Uploader工具类。
代码示例
- 人脸图片检索(URL)代码示例:
import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONObject; import com.aliyuncs.CommonRequest; import com.aliyuncs.CommonResponse; import com.aliyuncs.DefaultAcsClient; import com.aliyuncs.IAcsClient; import com.aliyuncs.exceptions.ClientException; import com.aliyuncs.exceptions.ServerException; import com.aliyuncs.http.FormatType; import com.aliyuncs.http.MethodType; import com.aliyuncs.http.ProtocolType; import com.aliyuncs.profile.DefaultProfile; import com.aliyuncs.profile.IClientProfile; import java.util.Arrays; import java.util.HashMap; import java.util.Map; import java.util.UUID; public class FaceScanRequestSample { public static void main(String[] args) { IClientProfile profile = DefaultProfile.getProfile( "<your-region-id>", // 您的可用区ID "<your-access-key-id>", // 您的AccessKey ID "<your-access-key-secret>"); // 您的AccessKey Secret IAcsClient client = new DefaultAcsClient(profile); CommonRequest request = new CommonRequest(); // 指定请求方式 request.setSysMethod(MethodType.POST); // 指定请求地址 request.setSysDomain("green.cn-hangzhou.aliyuncs.com"); // 指定请求方法 request.setSysUriPattern("/green/image/scan"); // 指定请求版本 request.setSysVersion("2018-05-09"); // 支持HTTP和HTTPS request.setSysProtocol(ProtocolType.HTTPS); // 组装请求参数 JSONObject httpBody = new JSONObject(); // 图片检测场景,自定义人脸检索业务下,该参数取值为:sface-n httpBody.put("scenes", "sface-n"); JSONObject task = new JSONObject(); // 数据Id task.put("dataId", UUID.randomUUID().toString()); // 待检测图像的URL task.put("url", "https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=1826888913,1580553017&fm=26&gp=0.jpg"); Map<String, Object> extras = new HashMap<>(); extras.put("groupId", "group1"); // 附加信息,需要传入groupId task.put("extras", extras); // 待识别人脸相关信息 httpBody.put("tasks", Arrays.asList(task)); request.setHttpContent(org.apache.commons.codec.binary.StringUtils.getBytesUtf8(httpBody.toJSONString()), "UTF-8", FormatType.JSON); // 请设置超时时间, 服务端全链路处理超时时间为10秒,请做相应设置 // 如果您设置的ReadTimeout小于服务端处理的时间,程序中会获得一个read timeout异常 request.setSysConnectTimeout(3000); request.setSysReadTimeout(10000); try { CommonResponse response = client.getCommonResponse(request); JSONObject dataJson = JSON.parseObject(response.getData()); System.out.println(JSON.toJSONString(dataJson, true)); } catch (ServerException e) { e.printStackTrace(); } catch (ClientException e) { System.out.println("ErrCode:" + e.getErrCode()); System.out.println("ErrMsg:" + e.getErrMsg()); System.out.println("RequestId:" + e.getRequestId()); } } }
- 人脸图片检索(本地文件)代码示例:
import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONObject; import com.aliyuncs.CommonRequest; import com.aliyuncs.CommonResponse; import com.aliyuncs.DefaultAcsClient; import com.aliyuncs.IAcsClient; import com.aliyuncs.exceptions.ClientException; import com.aliyuncs.exceptions.ServerException; import com.aliyuncs.green.extension.uploader.ClientUploader; import com.aliyuncs.http.FormatType; import com.aliyuncs.http.MethodType; import com.aliyuncs.http.ProtocolType; import com.aliyuncs.profile.DefaultProfile; import com.aliyuncs.profile.IClientProfile; import java.util.Arrays; import java.util.HashMap; import java.util.Map; import java.util.UUID; public class FaceScanRequestSample { public static void main(String[] args) { IClientProfile profile = DefaultProfile.getProfile( "<your-region-id>", // 您的可用区ID "<your-access-key-id>", // 您的AccessKey ID "<your-access-key-secret>"); // 您的AccessKey Secret IAcsClient client = new DefaultAcsClient(profile); CommonRequest request = new CommonRequest(); // 指定请求方式 request.setSysMethod(MethodType.POST); // 指定请求地址 request.setSysDomain("green.cn-hangzhou.aliyuncs.com"); // 指定请求方法 request.setSysUriPattern("/green/image/scan"); // 指定请求版本 request.setSysVersion("2018-05-09"); // 支持HTTP和HTTPS request.setSysProtocol(ProtocolType.HTTPS); // 组装请求参数 JSONObject httpBody = new JSONObject(); httpBody.put("scenes", "sface-n"); JSONObject task = new JSONObject(); task.put("dataId", UUID.randomUUID().toString()); ClientUploader clientUploader = ClientUploader.getImageClientUploader(profile, false); String url = null; try{ url = clientUploader.uploadFile("C:/Users/admin/Desktop/person1.png"); }catch (Exception e){ e.printStackTrace(); } task.put("url", url); Map<String, Object> extras = new HashMap<>(); extras.put("groupId", "group1"); task.put("extras", extras); httpBody.put("tasks", Arrays.asList(task)); request.setHttpContent(org.apache.commons.codec.binary.StringUtils.getBytesUtf8(httpBody.toJSONString()), "UTF-8", FormatType.JSON); // 请设置超时时间, 服务端全链路处理超时时间为10秒,请做相应设置 // 如果您设置的ReadTimeout小于服务端处理的时间,程序中会获得一个read timeout异常 request.setSysConnectTimeout(3000); request.setSysReadTimeout(10000); try { CommonResponse response = client.getCommonResponse(request); JSONObject dataJson = JSON.parseObject(response.getData()); System.out.println(JSON.toJSONString(dataJson, true)); } catch (ServerException e) { e.printStackTrace(); } catch (ClientException e) { System.out.println("ErrCode:" + e.getErrCode()); System.out.println("ErrMsg:" + e.getErrMsg()); System.out.println("RequestId:" + e.getRequestId()); } } }
执行结果
正确的执行结果类似如下:
{
"msg":"OK",
"code":200,
"data":[
{
"msg":"OK",
"code":200,
"dataId":"66a45e5b-d666-4236-9809-ae944c37e285",
"extras":{},
"results":[
{
"rate":99.9,
"topPersonData":[
{
"faceItem":{
"width":116,
"x":123,
"y":40,
"height":116
}
}
],
"suggestion":"pass",
"label":"normal",
"scene":"sface-n"
}
],
"taskId":"img3fL2N6Vi48i6QR1@0M****-1rGKyC",
"url":"https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=1826888913,1580553017&fm=26&gp=0.jpg"
}
],
"requestId":"1686C103-2D2D-4837-A55B-2ADB818B1312"
}
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