内容简介：调用腾讯优图开放平台进行人脸识别：Java调用API实现
第一步：鉴权服务技术方案
Java代码实现如下
import java.util.Date;
import com.baidu.aip.util.Base64Util;
/**
* 获取Authorization
* @author 小帅丶
* @类名称 Sign
* @remark
* @date 2017-8-18
*/
public class Sign {
/**
* Authorization方法
* @param userQQ 开发者创建应用时的QQ号
* @param AppID 开发者创建应用后的AppID
* @param SecretID 开发者创建应用后的SecretID
* @param SecretKey 开发者创建应用后的SecretKey
* @return sign
* @throws Exception
*/
public static String getSign(String userQQ,String AppID,String SecretID,String SecretKey) throws Exception{
long tnowTimes = new Date().getTime()/1000;
long enowTimes = tnowTimes+2592000;
String rRandomNum = HMACSHA1.genRandomNum(10);
String param = "u=" + userQQ + "&a=" + AppID + "&k=" + SecretID + "&e="
+ enowTimes + "&t=" + tnowTimes + "&r=" + rRandomNum + "&f=";
byte [] hmacSign = HMACSHA1.getSignature(param, SecretKey);
byte[] all = new byte[hmacSign.length+param.getBytes().length];
System.arraycopy(hmacSign, 0, all, 0, hmacSign.length);
System.arraycopy(param.getBytes(), 0, all, hmacSign.length, param.getBytes().length);
String sign = Base64Util.encode(all);
return sign;
}
}
需要的HMACSHA1代码及随机数代码
import java.util.Random;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
/**
* HMACSHA1算法
*
* @author 小帅丶
* @类名称 HMACSHA1
* @remark
* @date 2017-8-18
*/
public class HMACSHA1 {
/**
* 算法标识
*/
private static final String HMAC_SHA1 = "HmacSHA1";
/**
* 加密
* @param data 要加密的数据
* @param key 密钥
* @return
* @throws Exception
*/
public static byte[] getSignature(String data, String key) throws Exception {
Mac mac = Mac.getInstance(HMAC_SHA1);
SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(),
mac.getAlgorithm());
mac.init(signingKey);
return mac.doFinal(data.getBytes());
}
/**
* 生成随机数字
* @param length
* @return
*/
public static String genRandomNum(int length){
int maxNum = 62;
int i;
int count = 0;
char[] str = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
StringBuffer pwd = new StringBuffer("");
Random r = new Random();
while(count < length){
i = Math.abs(r.nextInt(maxNum));
if (i >= 0 && i < str.length) {
pwd.append(str[i]);
count ++;
}
}
return pwd.toString();
}
}
第二步:准备相关代码
保存SIGN 或者每次都生成一个也可以 方便测试就直接每次生成一个了
开始识别图片之前需要 工具 类Base64Util FileUtil
FileUtil代码
import java.io.*;
/**
* 文件读取工具类
*/
public class FileUtil {
/**
* 读取文件内容，作为字符串返回
*/
public static String readFileAsString(String filePath) throws IOException {
File file = new File(filePath);
if (!file.exists()) {
throw new FileNotFoundException(filePath);
}
if (file.length() > 1024 * 1024 * 1024) {
throw new IOException("File is too large");
}
StringBuilder sb = new StringBuilder((int) (file.length()));
// 创建字节输入流
FileInputStream fis = new FileInputStream(filePath);
// 创建一个长度为10240的Buffer
byte[] bbuf = new byte[10240];
// 用于保存实际读取的字节数
int hasRead = 0;
while ( (hasRead = fis.read(bbuf)) > 0 ) {
sb.append(new String(bbuf, 0, hasRead));
}
fis.close();
return sb.toString();
}
/**
* 根据文件路径读取byte[] 数组
*/
public static byte[] readFileByBytes(String filePath) throws IOException {
File file = new File(filePath);
if (!file.exists()) {
throw new FileNotFoundException(filePath);
} else {
ByteArrayOutputStream bos = new ByteArrayOutputStream((int) file.length());
BufferedInputStream in = null;
try {
in = new BufferedInputStream(new FileInputStream(file));
short bufSize = 1024;
byte[] buffer = new byte[bufSize];
int len1;
while (-1 != (len1 = in.read(buffer, 0, bufSize))) {
bos.write(buffer, 0, len1);
}
byte[] var7 = bos.toByteArray();
return var7;
} finally {
try {
if (in != null) {
in.close();
}
} catch (IOException var14) {
var14.printStackTrace();
}
bos.close();
}
}
}
}
Base64Util 代码
/**
* Base64 工具类
*/
public class Base64Util {
private static final char last2byte = (char) Integer.parseInt("00000011", 2);
private static final char last4byte = (char) Integer.parseInt("00001111", 2);
private static final char last6byte = (char) Integer.parseInt("00111111", 2);
private static final char lead6byte = (char) Integer.parseInt("11111100", 2);
private static final char lead4byte = (char) Integer.parseInt("11110000", 2);
private static final char lead2byte = (char) Integer.parseInt("11000000", 2);
private static final char[] encodeTable = new char[]{'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'};
public Base64Util() {
}
public static String encode(byte[] from) {
StringBuilder to = new StringBuilder((int) ((double) from.length * 1.34D) + 3);
int num = 0;
char currentByte = 0;
int i;
for (i = 0; i < from.length; ++i) {
for (num %= 8; num < 8; num += 6) {
switch (num) {
case 0:
currentByte = (char) (from[i] & lead6byte);
currentByte = (char) (currentByte >>> 2);
case 1:
case 3:
case 5:
default:
break;
case 2:
currentByte = (char) (from[i] & last6byte);
break;
case 4:
currentByte = (char) (from[i] & last4byte);
currentByte = (char) (currentByte << 2);
if (i + 1 < from.length) {
currentByte = (char) (currentByte | (from[i + 1] & lead2byte) >>> 6);
}
break;
case 6:
currentByte = (char) (from[i] & last2byte);
currentByte = (char) (currentByte << 4);
if (i + 1 < from.length) {
currentByte = (char) (currentByte | (from[i + 1] & lead4byte) >>> 4);
}
}
to.append(encodeTable[currentByte]);
}
}
if (to.length() % 4 != 0) {
for (i = 4 - to.length() % 4; i > 0; --i) {
to.append("=");
}
}
return to.toString();
}
}
创建应用得到的值放在一个常量类里面
/**
* 常量
* @author 小帅丶
* @类名称 YouTuAppContants
* @remark
* @date 2017-8-18
*/
public class YouTuAppContants {
public static String AppID = "你自己的AppID ";
public static String SecretID = "你自己的SecretID";
public static String SecretKey = "你自己的SecretKey";
public static String userQQ = "你自己的userQQ";
}
还需要一个HTTPUTIL工具类 发送请求
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
/**
* http 工具类
*/
public class HttpUtilYoutu {
private static class TrustAnyTrustManager implements X509TrustManager {
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[] {};
}
}
private static class TrustAnyHostnameVerifier implements HostnameVerifier {
public boolean verify(String hostname, SSLSession session) {
return true;
}
}
/**
* post方式请求服务器(https协议)
*
* @param url
* 请求地址
* @param content
* 参数
* @param charset
* 编码
* @return
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
* @throws IOException
*/
public static String post(String url, String content,String charset,String sign)
throws NoSuchAlgorithmException, KeyManagementException,
IOException {
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, new TrustManager[] { new TrustAnyTrustManager() },
new java.security.SecureRandom());
URL console = new URL(url);
Integer length = content.length();
HttpURLConnection conn = (HttpURLConnection) console.openConnection();
//文档要求填写的Header参数
conn.setRequestProperty("Host", "api.youtu.qq.com");
conn.setRequestProperty("Content-Length",length.toString());
conn.setRequestProperty("Content-Type", "text/json");
conn.setRequestProperty("Authorization", sign);
//文档要求填写的Header参数
conn.setDoOutput(true);
conn.connect();
DataOutputStream out = new DataOutputStream(conn.getOutputStream());
out.write(content.getBytes(charset));
// 刷新、关闭
out.flush();
out.close();
BufferedReader in = null;
in = new BufferedReader(
new InputStreamReader(conn.getInputStream(), charset));
String result = "";
String getLine;
while ((getLine = in.readLine()) != null) {
result += getLine;
}
in.close();
System.err.println("result:" + result);
return result;
}
}
第三步:测试一下人脸检测接口
请求示例代码：
import com.xiaoshuai.test.Base64Util;
import com.xiaoshuai.test.FileUtil;
public class DetectFace {
//人脸检测接口
public static String DETECTFACE_URL="http://api.youtu.qq.com/youtu/api/detectface";
public static void main(String[] args) throws Exception {
String imagePath = "G:/test2.jpg";
System.out.println(getDetectFace(imagePath));
}
/**
* 检测图中人脸信息
* @param imagePath 图片路径
* @return
* @throws Exception
*/
public static String getDetectFace(String imagePath) throws Exception{
//得到Authorization
String sign = Sign.getSign(YouTuAppContants.userQQ,
YouTuAppContants.AppID, YouTuAppContants.SecretID,
YouTuAppContants.SecretKey);
byte[] imgData = FileUtil.readFileByBytes(imagePath);
String image = Base64Util.encode(imgData);;
String param = "{\"app_id\":\""+YouTuAppContants.AppID+"\",\"image\":\""+image+"\"}";
String result = HttpUtilYoutu.post(DETECTFACE_URL, param, "UTF-8",sign);
System.out.println(result);
return result;
}
}
看看返回的内容:
{"session_id":"","image_height":280,"image_width":359,"face":[{"face_id":"2188093443753939350","x":128,"y":127,"height":106.0,"width":106.0,"pitch":6,"roll":3,"yaw":-2,"age":23,"gender":94,"glass":true,"expression":34,"beauty":80,"face_shape":{"face_profile":[{"x":139,"y":160},{"x":139,"y":170},{"x":140,"y":180},{"x":143,"y":189},{"x":146,"y":199},{"x":150,"y":208},{"x":156,"y":217},{"x":162,"y":225},{"x":170,"y":232},{"x":179,"y":236},{"x":189,"y":238},{"x":199,"y":235},{"x":207,"y":230},{"x":214,"y":222},{"x":221,"y":214},{"x":225,"y":205},{"x":229,"y":195},{"x":231,"y":185},{"x":232,"y":174},{"x":233,"y":164},{"x":232,"y":155}],"left_eye":[{"x":152,"y":159},{"x":156,"y":161},{"x":161,"y":163},{"x":166,"y":162},{"x":171,"y":160},{"x":167,"y":157},{"x":162,"y":156},{"x":157,"y":157}],"right_eye":[{"x":216,"y":156},{"x":212,"y":159},{"x":208,"y":160},{"x":203,"y":160},{"x":198,"y":158},{"x":202,"y":155},{"x":206,"y":154},{"x":211,"y":154}],"left_eyebrow":[{"x":143,"y":148},{"x":151,"y":148},{"x":159,"y":148},{"x":166,"y":148},{"x":174,"y":147},{"x":167,"y":142},{"x":158,"y":141},{"x":150,"y":142}],"right_eyebrow":[{"x":224,"y":145},{"x":216,"y":145},{"x":208,"y":145},{"x":200,"y":146},{"x":192,"y":146},{"x":199,"y":141},{"x":208,"y":139},{"x":217,"y":139}],"mouth":[{"x":170,"y":209},{"x":175,"y":214},{"x":180,"y":218},{"x":187,"y":219},{"x":194,"y":217},{"x":200,"y":213},{"x":204,"y":207},{"x":199,"y":203},{"x":192,"y":201},{"x":186,"y":203},{"x":180,"y":202},{"x":174,"y":205},{"x":175,"y":210},{"x":181,"y":211},{"x":187,"y":211},{"x":193,"y":210},{"x":198,"y":209},{"x":198,"y":207},{"x":193,"y":208},{"x":187,"y":209},{"x":180,"y":207},{"x":175,"y":207}],"nose":[{"x":184,"y":184},{"x":183,"y":160},{"x":180,"y":166},{"x":177,"y":173},{"x":174,"y":180},{"x":170,"y":188},{"x":178,"y":191},{"x":185,"y":192},{"x":192,"y":190},{"x":199,"y":186},{"x":194,"y":179},{"x":191,"y":172},{"x":187,"y":166}]}}],"errorcode":0,"errormsg":"OK"}
忽略掉检测五官位置的数据:
"face_id": "2188093443753939350",
"x": 128,
"y": 127,
"height": 106,
"width": 106,
"pitch": 6,
"roll": 3,
"yaw": -2,
"age": 23,//年龄 [0~100]
"gender": 94,//性别 [0/(female)~100(male)]
"glass": true,//是否有眼镜 [true,false]
"expression": 34,//微笑[0(normal)~50(smile)~100(laugh)]
"beauty": 80,//魅力 [0~100]
想知道自己的魅力吗？那就扫描下面的二维码吧（微信小程序码)
想体验一下？那就扫描一下我的微信个人小程序吧。
如果想做自己的微信小程序。建议买一台云服务器和免费的SSL即可。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持 码农网
猜你喜欢:
- 人脸识别 调用2.0的arcface
- 人脸专集（三）：人脸关键点检测（下）
- 应用层下的人脸识别（二）：人脸库
- 应用层下的人脸识别（三）：人脸比对
- 阿里人脸识别安全技术获专利 可防范3D人脸面具攻击
- 你能区分真实人脸和AI生成的虚假人脸吗？
本站部分资源来源于网络，本站转载出于传递更多信息之目的，版权归原作者或者来源机构所有，如转载稿涉及版权问题，请联系我们。
XML Hacks
Michael Fitzgerald / O'Reilly Media, Inc. / 2004-07-27 / USD 24.95
Developers and system administrators alike are uncovering the true power of XML, the Extensible Markup Language that enables data to be sent over the Internet from one computer platform to another or ......一起来看看 《XML Hacks》 这本书的介绍吧!
