SpringBoot整合百度云人脸识别功能

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SpringBoot整合百度云人脸识别功能



1.在百度官网创建应用

首先需要在百度智能云官网中创建应用,获取

AppID,API Key,Secret Key

官网地址:https://console.bce.baidu.com/

image-20230527212420738



2.添加百度依赖

添加以下依赖即可。其中版本号可在

maven

官网查询

<dependency>
    <groupId>com.baidu.aip</groupId>
    <artifactId>java-sdk</artifactId>
    <version>${version}</version>
</dependency>



3.在application.yml中添加属性

便于后面去获取值

image-20230527212843730



4.创建AipFace


AipFace

是人脸识别的

Java

客户端,为使用人脸识别的开发人员提供了一系列的交互方法。初始化完成后建议单例使用,避免重复获取

access_token

(官方原话)

@Configuration
public class BaiduConfig {

    @Value("${baidu.appId}")
    private String appId;

    @Value("${baidu.key}")
    private String key;

    @Value("${baidu.secret}")
    private String secret;

    @Bean
    public AipFace aipFace(){
        return new AipFace(appId,key,secret);
    }
}



5.注册人脸接口

客户端上传的人脸的图片的Base64编码,并将该用户人脸图形进行本地保存,且存入数据库

@Value("${PhotoPath}")
private String filePath;

@Autowired
private AipFace aipFace;

@RequestMapping(value = "register",method = RequestMethod.POST)
public String register(String userName,String faceBase) throws IOException {
    if(!StringUtils.isEmpty(userName) && !StringUtils.isEmpty(faceBase)) {
        // 文件上传的地址
        System.out.println(filePath);
        // 图片名称
        String fileName = userName + System.currentTimeMillis() + ".png";
        System.out.println(filePath + "\\" + fileName);
        File file = new File(filePath + "\\" + fileName);

        // 往数据库里插入一条用户数据
        Users user = new Users();
        user.setUserName(userName);
        user.setUserPhoto(filePath + "\\" + fileName);
 	//判断用户名是否重复
         LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
         queryWrapper.eq(User::getUserName, userName);
         User exitUser = userService.getOne(queryWrapper);
          if (exitUser != null) {
              return "2";
         }
	userService.save(user);

        // 保存上传摄像头捕获的图片
        saveLocalImage(faceBase, file);
        // 向百度云人脸库插入一张人脸
        faceSetAddUser(aipFace,faceBase,user.getUserId());
    }
    return "1";
}


public boolean saveLocalImage(String imgStr, File file) {
    // 图像数据为空
    if (imgStr == null) {
        return false;
    }else {
        BASE64Decoder decoder = new BASE64Decoder();
        try {
            // Base64解码
            byte[] bytes = decoder.decodeBuffer(imgStr);
            for (int i = 0; i < bytes.length; ++i) {
                if (bytes[i] < 0) {
                    bytes[i] += 256;
                }
            }
            // 生成jpeg图片
            if(!file.exists()) {
                file.getParentFile().mkdir();
                OutputStream out = new FileOutputStream(file);
                out.write(bytes);
                out.flush();
                out.close();
                return true;
            }

        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    } 
    return false;	
}

public boolean faceSetAddUser(AipFace client, String faceBase, String userId) {
    // 参数为数据库中注册的人脸
    HashMap<String, String> options = new HashMap<String, String>();
    options.put("user_info", "user's info");
    JSONObject res = client.addUser(faceBase, "BASE64", "user_01", userId, options);
    return true;
}



6.人脸登录接口

@RequestMapping(value = "login",method = RequestMethod.POST)
public String login(String faceBase) {
    String faceData = faceBase;
    // 进行人像数据对比
    Double num = verifyUser(faceData,aipFace);
    if( num > 80) {
        return "1";
    }else {
        return "2";
    }
}

public Double verifyUser(String imgBash64,AipFace client) {
    // 传入可选参数调用接口
    HashMap<String, String> options = new HashMap<String, String>();
    JSONObject res = client.search(imgBash64, "BASE64", "user_01", options);
    JSONObject user = (JSONObject) res.getJSONObject("result").getJSONArray("user_list").get(0);
    Double score = (Double) user.get("score");
    return score;
}



7.注册登录页面(参考)

其实比较困难的是这个PC端采集用户人脸图像,需要调用PC摄像头。

<style type="text/css">
	*{margin: 0;padding: 0;}
	html,body{width: 100%;height: 100%;}/**/
	h1{color: #fff;text-align: center;line-height: 80px;}
	.media{width: 450px;height: 300px;line-height: 300px;margin: 40px auto;}
	.btn{width: 250px;height:50px; line-height:50px; margin: 20px auto; text-align: center;}
	#register{width: 200px;height:50px;background-color: skyblue;text-align: center;line-height: 50px;color: #fff;}
	#canvas{display: none;}
	#shuru{width: 250px;height:50px; line-height:50px;background-color: skyblue; margin: 20px auto; text-align: center;}
</style>
</head>
<body>
	<h1>百度云人脸注册</h1>
	<div id="shuru">用户名:<input type="text" name="username" id="username"/></div>
	
	<div class="media">
		<video id="video" width="450" height="300" src="" autoplay></video>
		<canvas id="canvas" width="450" height="300"></canvas>
	</div>
	<div class="btn"><button id="register" >确定注册</button></div>
	<script type="text/javascript" src="js/jquery-3.3.1.js"></script>

	<script type="text/javascript">
	/**调用摄像头,获取媒体视频流**/
	var video = document.getElementById('video');
	//返回画布二维画图环境
	var userContext = canvas.getContext("2d");
	var getUserMedia = 
		//浏览器兼容,表示在火狐、Google、IE等浏览器都可正常支持
		(navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia)
		//getUserMedia.call(要调用的对象,约束条件,调用成功的函数,调用失败的函数)
		getUserMedia.call(navigator,{video: true,audio: false},function(localMediaStream){
			//获取摄像头捕捉的视频流
			video.srcObject=localMediaStream;
		},function(e){
			console.log("获取摄像头失败!!")
		});
	//点击按钮注册事件
	 var btn = document.getElementById("register");
	
	btn.onclick = function () {
		var username = $("#username").val();
		alert($("#username").val());
			if(username != null){
				//点击按钮时拿到登陆者面部信息
		           userContext.drawImage(video,0,0,450,300);
		           var userImgSrc = document.getElementById("canvas").toDataURL("img/png");
		           //拿到bash64格式的照片信息
		           var faceBase = userImgSrc.split(",")[1];
		           
		           //ajax异步请求
		           $.ajax({
		        	   url: "register",
		        	   type: "post",
		        	   data: {"faceBase": faceBase,
		        		   "userName": username
		        	   },
		        	   success: function(result){
		        		   if(result === '1'){
		        			   alert("注册成功!!,点击确认跳转至登录页面");
			        		   window.location.href="toLogin";
		        		   }else if(result === '2'){
		        			   alert("您已经注册过啦!!");
		        		   }else{
		        			   alert("系统错误!!");
		        		   }
		        	   }
		           })
			}else{
				alert("用户名不能为空");
			}
       }
	</script>
</body>



8.测试结果

测试成功后,百度平台上能看到用户组下的人脸数增加了



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