java 集成免费虹软人脸识别 SDK，实现人脸识别认证功能

Whitemeen太白

已于 2023-09-09 16:19:42 修改

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分类专栏： java程序实现文章标签： java 人脸识别 sdk

于 2023-09-09 15:37:21 首次发布

本文链接：https://blog.youkuaiyun.com/demo_yo/article/details/132775100

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引入本地 jar 包教程： https://blog.youkuaiyun.com/demo_yo/article/details/132495029

前言

本文详细介绍了 java 集成免费虹软人脸识别的详细流程，从 SDK 下载到 SDK 的集成，以及 API 的封装策略。

一、SDK 下载

进入虹软开发者中心：https://ai.arcsoft.com.cn/ucenter/resource/build/index.html#/index
选择免费SDK：
创建应用：
下载SDK：

二、SDK 集成

1、jar 依赖包

将将压缩包中的 jar 包，放置在 resource 文件夹下的 lib 文件夹中。
在这里插入图片描述
在 pom.xml 中引入本地依赖：

<dependency>
	<groupId>com.arcsoft</groupId>
	<artifactId>json</artifactId>
	<version>1.0</version>
	<scope>system</scope>
	<systemPath>${project.basedir}/src/main/resources/lib/arcsoft-sdk-face-3.0.0.0.jar</systemPath>
</dependency>

关于本地 jar 包的引用方式说明，请转引入本地 jar 包教程 https://blog.youkuaiyun.com/demo_yo/article/details/132495029

2、dll 链接文件

将压缩包中的 WIN64 dll 动态链接文件，放置在项目根目录下创建的 lib 文件夹下。
在这里插入图片描述
将在人脸识别引擎工厂类中引用改路径，用于引擎加载。如下：

// 加载引擎
FaceEngine faceEngine = new FaceEngine(System.getProperty("user.dir") + File.separator + "lib" + File.separator + "WIN64");

三、API 集成

1、yaml 配置

# 人脸认证引擎配置
face-engine:
  # 应用id
  app-id: xxxxxxxxxxxxxxxxx
  # sdk密匙
  sdk-key: xxxxxxxxxxxxxxxxx
  # 人脸对比阀值（建议0.8）
  face-similar-score: 0.8
  # RGB活体检测阀值（建议0.5）
  rgb-threshold: 0.5
  # IR活体检测阀值（建议0.7）
  ir-threshold: 0.7

2、Properties 配置类

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;

/**
 * 人脸认证引擎配置
 */
@Data
@Configuration
@ConfigurationProperties(prefix = "face-engine")
public class FaceEngineProperties {

	/**
	 * appId
	 */
	private String appId;

	/**
	 * sdkKey
	 */
	private String sdkKey;

	/**
	 * 人脸对比阀值
	 */
	private Float faceSimilarScore;

	/**
	 * RGB活体检测阀值
	 */
	private Float rgbThreshold;

	/**
	 * IR活体检测阀值
	 */
	private Float irThreshold;

}

3、Factory 工厂类

import com.arcsoft.face.ActiveFileInfo;
import com.arcsoft.face.EngineConfiguration;
import com.arcsoft.face.FaceEngine;
import com.arcsoft.face.FunctionConfiguration;
import com.arcsoft.face.enums.DetectMode;
import com.arcsoft.face.enums.DetectOrient;
import com.arcsoft.face.enums.ErrorInfo;
import com.whitemeen.magic.modules.demo.faceengine.config.FaceEngineProperties;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.io.File;
import java.util.concurrent.ConcurrentHashMap;

@Slf4j
@Component
@RequiredArgsConstructor
public class FaceEngineFactory {

	private static final String FACE_ENGINE_KEY = "face_engine_key";

	private static final String FUNCTION_CONFIGURATION_KEY = "function_configuration_key";

	private ConcurrentHashMap<String, FaceEngine> faceEngineMap = new ConcurrentHashMap<>(); // 引擎Bean

	private ConcurrentHashMap<String, FunctionConfiguration> functionConfigurationMap = new ConcurrentHashMap<>(); // 引擎配置

	private final FaceEngineProperties faceEngineProperties;

	/**
	 * 在bean初始化后进行引擎初始化
	 */
	@PostConstruct
	public void init() {
		log.info("进入人脸引擎初始化");
		// 加载引擎
		FaceEngine faceEngine = new FaceEngine(System.getProperty("user.dir") + File.separator + "lib" + File.separator + "WIN64");
		// 激活引擎
		int errorCode = faceEngine.activeOnline(faceEngineProperties.getAppId(), faceEngineProperties.getSdkKey());

		if (errorCode != ErrorInfo.MOK.getValue() && errorCode != ErrorInfo.MERR_ASF_ALREADY_ACTIVATED.getValue()) {
			log.error("人脸引擎激活失败");
			return;
		}

		ActiveFileInfo activeFileInfo = new ActiveFileInfo();
		errorCode = faceEngine.getActiveFileInfo(activeFileInfo);
		if (errorCode != ErrorInfo.MOK.getValue() && errorCode != ErrorInfo.MERR_ASF_ALREADY_ACTIVATED.getValue()) {
			log.error("获取激活文件信息失败");
			return;
		}

		// 引擎配置
		EngineConfiguration engineConfiguration = new EngineConfiguration();
		engineConfiguration.setDetectMode(DetectMode.ASF_DETECT_MODE_IMAGE);
		engineConfiguration.setDetectFaceOrientPriority(DetectOrient.ASF_OP_ALL_OUT);
		engineConfiguration.setDetectFaceMaxNum(10);
		engineConfiguration.setDetectFaceScaleVal(16);
		// 功能配置
		FunctionConfiguration functionConfiguration = new FunctionConfiguration();
		functionConfiguration.setSupportAge(true);
		functionConfiguration.setSupportFace3dAngle(true);
		functionConfiguration.setSupportFaceDetect(true);
		functionConfiguration.setSupportFaceRecognition(true);
		functionConfiguration.setSupportGender(true);
		functionConfiguration.setSupportLiveness(true);
		functionConfiguration.setSupportIRLiveness(true);
		engineConfiguration.setFunctionConfiguration(functionConfiguration);

		// 初始化引擎
		errorCode = faceEngine.init(engineConfiguration);

		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.error("初始化人脸引擎失败");
			return;
		}

		// 将引擎放入map
		faceEngineMap.put(FACE_ENGINE_KEY, faceEngine);
		// 将引擎配置放入map
		functionConfigurationMap.put(FUNCTION_CONFIGURATION_KEY, functionConfiguration);
		log.info("人脸引擎初始化完成");
	}

	/**
	 * 工厂方法
	 *
	 * @return 人脸引擎
	 */
	public FaceEngine getFaceEngine() {
		return faceEngineMap.get(FACE_ENGINE_KEY);
	}

	/**
	 * 工厂方法
	 *
	 * @return 引擎配置
	 */
	public FunctionConfiguration getFunctionConfiguration() {
		return functionConfigurationMap.get(FUNCTION_CONFIGURATION_KEY);
	}

}

4、Service 服务类

import com.arcsoft.face.*;
import com.arcsoft.face.enums.ErrorInfo;
import com.arcsoft.face.toolkit.ImageInfo;
import com.whitemeen.magic.modules.demo.faceengine.factory.FaceEngineFactory;
import com.whitemeen.magic.modules.demo.faceengine.model.FaceEngineR;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;

import static com.arcsoft.face.toolkit.ImageFactory.getRGBData;

@Slf4j
@Component
@RequiredArgsConstructor
public class FaceEngineService {

	private final FaceEngineFactory faceEngineFactory;

	/**
	 * 人脸认证
	 * <p>
	 * 建议待检测的图像人脸角度上、下、左、右转向小于30度；
	 * 图片中人脸尺寸不小于50 x 50像素；
	 * 图片大小小于10MB；
	 *
	 * @param authImageBytes   认证的图片字节
	 * @param localImageBytes  人脸库的图片字节
	 * @param faceSimilarScore 人脸对比阀值（范围为[0~1]，生活照推荐：0.80，证件照推荐：0.82）
	 * @param rgbThreshold     RGB活体检测阀值（范围为[0~1]，推荐：0.5）
	 * @param irThreshold      IR活体检测阀值	（范围为[0~1]，推荐：0.7）
	 * @return 认证结果
	 */
	public FaceEngineR compareFace(byte[] authImageBytes, byte[] localImageBytes, float faceSimilarScore, float rgbThreshold, float irThreshold) {
		// 获取引擎
		FaceEngine faceEngine = faceEngineFactory.getFaceEngine();

		int errorCode = 0; // 错误码

		//人脸检测
		ImageInfo imageInfo = getRGBData(authImageBytes);
		List<FaceInfo> faceInfoList = new ArrayList<FaceInfo>();
		errorCode = faceEngine.detectFaces(imageInfo.getImageData(), imageInfo.getWidth(), imageInfo.getHeight(), imageInfo.getImageFormat(), faceInfoList);
		log.info("人脸检测数据：{}", faceInfoList);
		log.info("[errorCode] = {}", errorCode);
		if (errorCode == ErrorInfo.MERR_ASF_EX_INVALID_FACE_INFO.getValue()) {
			log.info("无效的脸部信息：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("未检测到人脸");
		} else if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("人脸检测异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸检测异常：[errorCode] = " + errorCode);
		}

		//特征提取
		FaceFeature faceFeature = new FaceFeature();
		errorCode = faceEngine.extractFaceFeature(imageInfo.getImageData(), imageInfo.getWidth(), imageInfo.getHeight(), imageInfo.getImageFormat(), faceInfoList.get(0), faceFeature);
		log.info("人脸特征值大小：{}", faceFeature.getFeatureData().length);
		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("人脸特征提取异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸特征提取异常：[errorCode] = " + errorCode);
		}

		//人脸检测2
		ImageInfo imageInfo2 = getRGBData(localImageBytes);
		List<FaceInfo> faceInfoList2 = new ArrayList<FaceInfo>();
		errorCode = faceEngine.detectFaces(imageInfo2.getImageData(), imageInfo2.getWidth(), imageInfo2.getHeight(), imageInfo2.getImageFormat(), faceInfoList2);
		log.info("人脸库人脸检测数据：{}", faceInfoList2);
		log.info("[errorCode] = {}", errorCode);
		if (errorCode == ErrorInfo.MERR_ASF_EX_INVALID_FACE_INFO.getValue()) {
			log.info("人脸库无效的脸部信息：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸库未检测到人脸");
		} else if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("人脸库人脸检测异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸库人脸检测异常：[errorCode] = " + errorCode);
		}

		//特征提取2
		FaceFeature faceFeature2 = new FaceFeature();
		errorCode = faceEngine.extractFaceFeature(imageInfo2.getImageData(), imageInfo2.getWidth(), imageInfo2.getHeight(), imageInfo2.getImageFormat(), faceInfoList2.get(0), faceFeature2);
		log.info("人脸库特征值大小：{}", faceFeature2.getFeatureData().length);
		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("人脸库人脸特征提取异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸库人脸特征提取异常：[errorCode] = " + errorCode);
		}

		//特征比对
		FaceFeature targetFaceFeature = new FaceFeature();
		targetFaceFeature.setFeatureData(faceFeature.getFeatureData());
		FaceFeature sourceFaceFeature = new FaceFeature();
		sourceFaceFeature.setFeatureData(faceFeature2.getFeatureData());
		FaceSimilar faceSimilar = new FaceSimilar();

		errorCode = faceEngine.compareFaceFeature(targetFaceFeature, sourceFaceFeature, faceSimilar);
		log.info("相似度：{}", faceSimilar.getScore());
		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("人脸特征对比异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸特征对比异常：[errorCode] = " + errorCode);
		}
		//相识度分数对比
		if (faceSimilar.getScore() < faceSimilarScore) {
			return FaceEngineR.failed("人脸对比未通过");
		}

		//设置活体测试
		errorCode = faceEngine.setLivenessParam(rgbThreshold, irThreshold);
		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("活体测试异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("活体测试异常：[errorCode] = " + errorCode);
		}
		//人脸属性检测
		FunctionConfiguration configuration = new FunctionConfiguration();
		configuration.setSupportAge(true);
		configuration.setSupportFace3dAngle(true);
		configuration.setSupportGender(true);
		configuration.setSupportLiveness(true);
		errorCode = faceEngine.process(imageInfo.getImageData(), imageInfo.getWidth(), imageInfo.getHeight(), imageInfo.getImageFormat(), faceInfoList, configuration);
		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("人脸属性检测异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸属性检测异常：[errorCode] = " + errorCode);
		}

		//3D信息检测
		List<Face3DAngle> face3DAngleList = new ArrayList<Face3DAngle>();
		errorCode = faceEngine.getFace3DAngle(face3DAngleList);
		log.info("3D角度：{}", face3DAngleList.get(0).getPitch() + ",{}", face3DAngleList.get(0).getRoll() + ",{}", face3DAngleList.get(0).getYaw());
		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("3D信息检测异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("3D信息检测异常：[errorCode] = " + errorCode);
		}

		//活体检测
		List<LivenessInfo> livenessInfoList = new ArrayList<LivenessInfo>();
		errorCode = faceEngine.getLiveness(livenessInfoList);
		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("活体检测异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("活体检测异常：[errorCode] = " + errorCode);
		}
		log.info("活体：{}", livenessInfoList.get(0).getLiveness());
		if (livenessInfoList.get(0).getLiveness() != 1) {
			return FaceEngineR.failed("未检测到活体");
		}

		return FaceEngineR.ok("人脸认证通过");
	}

	/**
	 * 人脸认证
	 *
	 * @param authImageBytes 认证的图片字节
	 */
	public FaceEngineR detectFace(byte[] authImageBytes) {
		// 获取引擎
		FaceEngine faceEngine = faceEngineFactory.getFaceEngine();

		int errorCode = 0; // 错误码

		//人脸检测
		ImageInfo imageInfo = getRGBData(authImageBytes);
		List<FaceInfo> faceInfoList = new ArrayList<FaceInfo>();
		errorCode = faceEngine.detectFaces(imageInfo.getImageData(), imageInfo.getWidth(), imageInfo.getHeight(), imageInfo.getImageFormat(), faceInfoList);
		log.info("人脸检测数据：{}", faceInfoList);
		if (errorCode != ErrorInfo.MERR_ASF_EX_INVALID_FACE_INFO.getValue()) {
			log.info("无效的脸部信息：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("未检测到人脸");
		} else if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("人脸检测异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸检测异常：[errorCode] = " + errorCode);
		}

		//特征提取
		FaceFeature faceFeature = new FaceFeature();
		errorCode = faceEngine.extractFaceFeature(imageInfo.getImageData(), imageInfo.getWidth(), imageInfo.getHeight(), imageInfo.getImageFormat(), faceInfoList.get(0), faceFeature);
		log.info("特征值大小：{}", faceFeature.getFeatureData().length);
		if (errorCode != ErrorInfo.MOK.getValue()) {
			log.info("人脸特征提取异常：[errorCode] = {}", errorCode);
			return FaceEngineR.failed("人脸特征提取异常：[errorCode] = " + errorCode);
		}
		return FaceEngineR.ok(faceFeature.getFeatureData().length, "人脸检测通过");
	}

}

5、服务类响应实体

import lombok.Data;

import java.io.Serializable;

@Data
public class FaceEngineR<T> implements Serializable {

	private static final long serialVersionUID = 1L;

	/**
	 * 成功标记
	 */
	private static Integer SUCCESS = 0;

	/**
	 * 失败标记
	 */
	private static Integer FAIL = 1;

	/**
	 * 返回标记：成功标记=0，失败标记=1
	 */
	private int code;

	/**
	 * 返回信息
	 */
	private String msg;

	/**
	 * 数据
	 */
	private T data;

	public static <T> FaceEngineR<T> ok() {
		return restResult(null, SUCCESS, "成功");
	}

	public static <T> FaceEngineR<T> ok(T data) {
		return restResult(data, SUCCESS, "成功");
	}

	public static <T> FaceEngineR<T> ok(T data, String msg) {
		return restResult(data, SUCCESS, msg);
	}

	public static <T> FaceEngineR<T> failed() {
		return restResult(null, FAIL, "失败");
	}

	public static <T> FaceEngineR<T> failed(String msg) {
		return restResult(null, FAIL, msg);
	}

	public static <T> FaceEngineR<T> failed(T data) {
		return restResult(data, FAIL, "失败");
	}

	public static <T> FaceEngineR<T> failed(T data, String msg) {
		return restResult(data, FAIL, msg);
	}

	static <T> FaceEngineR<T> restResult(T data, int code, String msg) {
		FaceEngineR<T> apiResult = new FaceEngineR<>();
		apiResult.setCode(code);
		apiResult.setData(data);
		apiResult.setMsg(msg);
		return apiResult;
	}
}

6、API 方法类

import com.whiemeen.magic.common.core.exception.FcApiException;
import com.whiemeen.magic.common.core.fc.kit.FcFileKit;
import com.whiemeen.magic.modules.dome.faceengine.config.FaceEngineProperties;
import com.whiemeen.magic.modules.dome.faceengine.model.FaceEngineR;
import com.whiemeen.magic.modules.dome.faceengine.service.FaceEngineService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import java.util.Optional;

/**
 * 人脸认证api
 */
@Slf4j
@Component
@RequiredArgsConstructor
public class FaceEngineApi {

	private final FaceEngineService faceEngineService;

	private final FaceEngineProperties faceEngineProperties;

	/**
	 * 本地人脸检测
	 */
	public boolean detectLocalFace(String imagePath) {
		log.info("检测人脸：{}", imagePath);
		// 将图片url转换为文件字节
		byte[] authImageBytes = FcFileKit.imagePathToBytes(imagePath);
		Optional.ofNullable(authImageBytes).orElseThrow(() -> new FcApiException("文件读取异常"));

		// 人脸检测
		FaceEngineR faceEngineR = faceEngineService.detectFace(authImageBytes);
		if (faceEngineR.getCode() != 0) {
			log.info("认证失败：[code] {} [msg] {}", faceEngineR.getCode(), faceEngineR.getMsg());
			throw new FcApiException(faceEngineR.getMsg());
		
		log.info("检测通过");
		return true;
	}

	/**
	 * 人脸检测
	 */
	public boolean detectFace(String imageUrl) {
		log.info("检测人脸：{}", imageUrl);
		// 将图片url转换为文件字节
		byte[] authImageBytes = FcFileKit.imageUrlToBytes(imageUrl);
		Optional.ofNullable(authImageBytes).orElseThrow(() -> new FcApiException("文件读取异常"));

		// 人脸检测
		FaceEngineR faceEngineR = faceEngineService.detectFace(authImageBytes);
		if (faceEngineR.getCode() != 0) {
			log.info("认证失败：[code] {} [msg] {}", faceEngineR.getCode(), faceEngineR.getMsg());
			throw new FcApiException(faceEngineR.getMsg());
		}
		log.info("检测通过");
		return true;
	}

	/**
	 * 本地人脸对比认证
	 *
	 * @param authImagePath  待认证的人脸
	 * @param localImagePath 人脸库中的人脸
	 * @return 认证结果
	 */
	public boolean compareLocalFace(String authImagePath, String localImagePath) {
		log.info("认证人脸：{}", authImagePath);
		log.info("人脸库人脸：{}", localImagePath);
		// 将图片path转换为文件字节
		byte[] authImageBytes = FcFileKit.imagePathToBytes(authImagePath);
		Optional.ofNullable(authImageBytes).orElseThrow(() -> new FcApiException("文件读取异常"));
		byte[] localImageBytes = FcFileKit.imagePathToBytes(localImagePath);
		Optional.ofNullable(localImageBytes).orElseThrow(() -> new FcApiException("人脸库文件读取异常"));

		log.info("相识度阀值：{}", faceEngineProperties.getFaceSimilarScore());
		log.info("RGB活体检测阀值：{}", faceEngineProperties.getRgbThreshold());
		log.info("IR活体检测阀值：{}", faceEngineProperties.getIrThreshold());

		FaceEngineR faceEngineR = faceEngineService.compareFace(authImageBytes, localImageBytes,
				faceEngineProperties.getFaceSimilarScore(),
				faceEngineProperties.getRgbThreshold(),
				faceEngineProperties.getIrThreshold());
		if (faceEngineR.getCode() != 0) {
			log.info("认证失败：[code] {} [msg] {}", faceEngineR.getCode(), faceEngineR.getMsg());
			throw new FcApiException(faceEngineR.getMsg());
		}
		log.info("认证通过");
		return true;
	}

	/**
	 * 人脸对比认证
	 *
	 * @param authImageUrl  待认证的人脸
	 * @param localImageUrl 人脸库中的人脸
	 * @return 认证结果
	 */
	public boolean compareFace(String authImageUrl, String localImageUrl) {
		log.info("认证人脸：{}", authImageUrl);
		log.info("人脸库人脸：{}", localImageUrl);
		// 将图片url转换为文件字节
		byte[] authImageBytes = FcFileKit.imageUrlToBytes(authImageUrl);
		Optional.ofNullable(authImageBytes).orElseThrow(() -> new FcApiException("文件读取异常"));
		byte[] localImageBytes = FcFileKit.imageUrlToBytes(localImageUrl);
		Optional.ofNullable(localImageBytes).orElseThrow(() -> new FcApiException("人脸库文件读取异常"));

		log.info("相识度阀值：{}", faceEngineProperties.getFaceSimilarScore());
		log.info("RGB活体检测阀值：{}", faceEngineProperties.getRgbThreshold());
		log.info("IR活体检测阀值：{}", faceEngineProperties.getIrThreshold());

		FaceEngineR faceEngineR = faceEngineService.compareFace(authImageBytes, localImageBytes,
				faceEngineProperties.getFaceSimilarScore(),
				faceEngineProperties.getRgbThreshold(),
				faceEngineProperties.getIrThreshold());
		if (faceEngineR.getCode() != 0) {
			log.info("认证失败：[code] {} [msg] {}", faceEngineR.getCode(), faceEngineR.getMsg());
			throw new FcApiException(faceEngineR.getMsg());
		}
		log.info("认证通过");
		return true;
	}

}

7、文件工具类

import cn.hutool.core.img.Img;
import cn.hutool.core.io.FileUtil;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.Paths;

public class FcFileKit {

	/**
	 * 本地文件path转化为二进制文件
	 *
	 * @param imagePath 本地文件path
	 * @return 二进制文件
	 */
	public static byte[] imagePathToBytes(String imagePath) {
		try {
			return return FileUtil.readBytes(imagePath);
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 远程文件Url转化为二进制文件
	 *
	 * @param imageUrl 文件Url
	 * @return 二进制文件
	 */
	public static byte[] imageUrlToBytes(String imageUrl) {
		try {
			URL url = new URL(imageUrl);
			try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream()) {
				Img.from(url).write(outputStream); // 写文件
				return outputStream.toByteArray();
			} catch (Exception e) {
				e.printStackTrace();
				return null;
			}
		}catch (Exception e){
			e.printStackTrace();
			return null;
		}
	}

}